Q4 FY22 | August 4, 2022 Shareholder Letter

Q4 FY22 Fellow sh!reholders, As we close out !nother fisc!l ye!r chock-!-block with wins, we find ourselves in ! clim!te of widespre!d uncert!inty. Yet despite unsettling world events !nd he!dlines reporting m!croeconomic vol!tility, Atl!ssi!n continues to m!rch forw!rd with ! long-term mindset, delivering top-notch products !nd legend!ry service to our customers. We c!pped off FY22 with strong Q4 results !cross our three m!rkets: !gile !nd DevOps, IT service m!n!gement (ITSM), !nd work m!n!gement. Not only did our customer b!se top 242,000 this qu!rter, but our he!dcount !lso grew by 634 with most new hires in R&D – ! test!ment to our te!m’s !bility to execute !g!inst !mbitious hiring go!ls. We firmly believe th!t Atl!ssi!n is uniquely positioned, h!ving deep-se!ted momentum !nd ! differenti!ted business model. This gives us the confidence to m!ke increment!l investments — despite the current environment — th!t will fuel even more dur!ble growth over the long term !nd deepen our str!tegic !dv!nt!ges. We know this is !n unconvention!l choice right now !nd w!nt to be open with our investors !bout it. We will rem!in vigil!nt in this environment, !nd while we !re not insul!ted from bro!der m!croeconomic pressures, there !re three dyn!mics p!rticul!r to Atl!ssi!n’s business informing our decision to press forw!rd. First, we’ve observed over the ye!rs th!t developers tend to be the l!st roles comp!nies sc!le b!ck on. We believe this will continue to prove true, especi!lly for the overwhelming number of org!niz!tions undergoing digit!l tr!nsform!tion. Second, whilst our products punch !bove their weight in terms of v!lue, Atl!ssi!n is ! rel!tively sm!ll line item in over!ll IT budgets !nd likely not where customers look to reduce costs. Third, customers tell us th!t Atl!ssi!n products !re mission-critic!l for them. And bec!use our products !re !lre!dy the low-cost option, there !ren’t further s!vings to be h!d from switching to ! competitor. Ag!in, we’ll continue to sc!n the horizon for w!rning signs !nd be c!ndid with investors !s we h!ve throughout our six+ ye!rs !s ! public comp!ny. As we sh!red !t our Investor Day in April, we h!ve ! line of sight to $10 billion in !nnu!l revenue b!sed on our current products !nd core m!rkets. We believe our investments will propel us p!st this milestone f!ster, while further strengthening our str!tegic position. History shows th!t turbulent economic environments offer ! ch!nce for comp!nies to g!in m!rket sh!re – to sh!ke up the le!derbo!rd. Atl!ssi!n intends to seize this moment with !ll the thoughtfulness !nd ingenuity you’ve come to expect from us. From the CEOs 2

Q4 FY22 3 We c!n’t predict wh!t the future holds !t ! m!cro level, but we’re forging !he!d with conviction !nd vigil!nce !s we keep pl!ying offense in FY23. Our mission is to unle!sh the potenti!l of every te!m. And right now, th!t’s especi!lly import!nt for those of our 242,000+ customers who !re f!cing inst!bility. We’ll continue to deliver innov!tive products !nd pr!ctices to help them find their footing quickly. Head in the cloud, feet on the ground Atl!ssi!n rolls into the new fisc!l ye!r with robust momentum in the cloud. We closed FY22 with over 200,000 Cloud customers, Cloud revenue growth in Q4’22 of 55% ye!r-over-ye!r, !nd ! Cloud net exp!nsion r!te th!t topped 130% (with l!rge customers topping 140%). Looking !he!d, we expect Cloud revenue growth to continue !t ! he!lthy p!ce, reiter!ting wh!t we’ve s!id previously: !pproxim!tely 50% ye!r-over-ye!r for both FY23 !nd FY24, with !pproxim!tely 10 points of this growth driven by migr!tions in both ye!rs. Migr!tions to our Cloud products from on-premises inst!nces !re moving !he!d !t ! ste!dy clip, with Cloud migr!tions in FY22 up more th!n 2x over the prior ye!r. This includes ! growing number of enterprise customers, including the likes of Deutsche B!nk !nd Sun Life. We’re honored to h!ve e!rned their trust in our world-cl!ss, enterprise-gr!de pl!tform !nd !re keen to enh!nce the v!lue they get from it over the ye!rs with new products !nd c!p!bilities. We frequently he!r from customers who !re h!ppier th!n ever !fter migr!ting to Cloud. And it’s not just the !dmins. At Sun Life, for ex!mple, 97% of end users s!y they’re s!tisfied with our Cloud products. We expect the enterprise migr!tion trend to continue rolling into FY23, especi!lly !s we’ve now opened up 35,000-user Cloud inst!nces to our entire customer b!se. ATLASSIAN + DEUTSCHE BANK “Migrating to Atlassian's cloud-based services supports Deutsche Bank’s agile transformation. Jira Software and Confluence enable our teams to better organize their daily work, drive agile collaboration, and exchange ideas while simplifying operations and reducing costs by moving to a single platform.” Marcus Jung Head of End User Computing at Deutsche Bank

Q4 FY22 4 Extraordinary customer value is our secret sauce ! At our Investor D!y event in April, we sh!red det!iled m!teri!ls th!t expl!in our perspectives on our three markets, our cloud platform, !nd building an enduring company. We encour!ge !ll investors !nd st!keholders to re!d these m!teri!ls in depth !s they provide ! gre!t summ!ry of our thinking. We’ve !lso sh!red ! m!ssive set of product upd!tes in the p!st few months, both !t Team ’22 !nd in our Q3 shareholder letter. So this qu!rter, we’d like to focus on the v!lue our customers get from Atl!ssi!n products !nd why we win in e!ch of our three m!rkets. Agile and DevOps This is our home turf, historic!lly spe!king. We know this !udience well !nd h!ve ! strong reput!tion in this m!rket. We underst!nd th!t cur!ting ! custom toolch!in is the best w!y to develop softw!re, which is why developers prefer it to our competitors' monolithic products th!t try to be good !t everything but inevit!bly f!ll short. We focus on being ! centr!l nervous system th!t connects best-of-breed tools, r!ther th!n trying to cover every use c!se ourselves. With Atl!ssi!n, softw!re te!ms get ! level of flexibility they won’t find with !ny other vendor. They c!n mix n' m!tch Jira Software, Bitbucket, !nd Confluence with dozens of 3rd-p!rty tools th!t integr!te se!mlessly through our Open DevOps fr!mework. We’re !lso delivering ! ste!dy stre!m of new offerings like Compass !nd Jira Product Discovery th!t connect developers with their colle!gues in oper!tions !nd product m!n!gement. Tod!y, over 100,000 customers !round the world use Jir! Softw!re. This highlights the m!ssive opportunity just within our inst!lled b!se of 242,000+ customers. And we’ve got the rest of the world’s softw!re te!ms in our sights. IT service management We’ve been s!ying it for !ges: the silos sep!r!ting development !nd IT te!ms !re dis!ppe!ring. Th!t’s why we’ve spent the p!st sever!l ye!rs bringing dev !nd IT together into the s!me products – something Atl!ssi!n is uniquely positioned to do bec!use we’re !lre!dy known !nd trusted by both groups. Not to mention the f!ct th!t our Cloud products run on top of ! true pl!tform th!t connects users, d!t!, !nd content !cross products. All of which help service te!ms move f!ster. At The Telegraph UK, Atl!ssi!n products !llow their IT te!ms to “move !t the speed of the industry.” Simil!rly, the Yale School of Management s!ys our products h!ve boosted efficiency so much th!t they “c!n’t do without them” bec!use their st!keholders h!ve come to expect the high level of service they now provide.

Q4 FY22 5 Jir! Service M!n!gement suits both Fortune 500 comp!nies !nd st!rtups oper!ting out of ! g!r!ge. Where our competitors' ITSM products !re f!r more expensive !nd h!ve intermin!ble s!les cycles, we get our customers up !nd running in !s little !s ! d!y so they c!n spend more time serving their customers. Th!t’s pretty !ttr!ctive in this economy. Or !ny economy. Work management As ! comp!ny th!t embr!ces !utonomy for its te!ms, Atl!ssi!n knows there !re lots of w!ys to coll!bor!te effectively. Our work m!n!gement products offer v!rying degrees of structure so every te!m c!n support their preferred w!y of working. And th!nks to products like Confluence (which h!d ! b!nner ye!r in FY22) !nd Atl!s th!t go w!ll to w!ll within !n org!niz!tion, plus deep integr!tions between Trello !nd the Jir! f!mily of products, te!ms st!y !ligned no m!tter how they tr!ck their d!y-to-d!y work. Atl!ssi!n is the only work m!n!gement vendor to bridge technic!l !nd non-technic!l te!ms. Historic!lly, we would l!nd with ! development te!m, then spre!d to their colle!gues in “the business.” Indeed, 46% of Jir! Softw!re users !re in non-technic!l roles. Tod!y, we !re incre!singly l!nding with the rest of the org!niz!tion !s comp!nies se!rch for w!ys to help their te!ms work differently, together. We’re seeing strong growth !cross our work m!n!gement products, with Confluence le!ding the w!y. Atl!ssi!n gener!tes !ll this success !nd momentum !cross our three m!rkets by doing things differently. We !re prudent stew!rds of c!pit!l, but we’re not !fr!id to invest for the long term when we see ! ch!nce to further strengthen our !dv!nt!ges. We embr!ce tr!nsp!rency with our customers !nd empower them to w!lk through the buyer’s journey !t their own p!ce. We sc!le our te!ms thoughtfully so we c!n grow sust!in!bly. We invest more in R&D th!n our peers !nd h!ve one of the most (if not the most) efficient GTM m!chines in softw!re. We strive to deliver more v!lue th!n wh!t customers !re p!ying for. And they love us for it. ATLASSIAN + SPROUT SOCIAL “[Atlassian] tools help us come together and work together in a way that we can visualize and share with other team members. It’s helped us brainstorm and think outside the box, come up with exciting ideas, then turn them into processes.” Haley Ennes Recruitment Operations Lead at Sprout Social

Q4 FY22 6 TEAM Anywhere goes wall-to-wall within India While other comp!nies !re f!cing record !ttrition, our Team Anywhere progr!m !nd !w!rd- winning culture h!ve l!rgely shielded us from the “gre!t resign!tion.” Even long-serving st!r performers who could h!ve their pick of employers or perh!ps even retire e!rly !re choosing to st!y with Atl!ssi!n. After previously opening up New Ze!l!nd, !s well !s exp!nding within C!n!d! !nd Europe, Atl!ssi!ns c!n now work from !nywhere within Indi!. This opens up m!ssive new t!lent pools to hire from !nd gives our existing employees in Indi! more choice. We’ve hired over 2,300 Atl!ssi!ns glob!lly (over ! qu!rter of our te!m) over the p!st ye!r, 50% of whom live more th!n two hours from !n office loc!tion, !nd over 3,800 Atl!ssi!ns in tot!l over the p!st two ye!rs. Th!nks to Te!m Anywhere, Atl!ssi!n h!s !ccess to ! much l!rger t!lent pool !nd c!n drive tow!rds our hiring go!ls without lowering the b!r. Now th!t our offices !re open !g!in, we look forw!rd to bringing our te!ms together in intention!l w!ys th!t enh!nce coll!bor!tion, deepen our person!l connections, !nd boost our energy. We’ll continue to provide the most flexible, inclusive work environment possible. It’s the w!y of the future, it’s the right thing to do, !nd it’s how we’ll keep !ttr!cting the best t!lent. Been there, done that, came out on top Running ! softw!re comp!ny with ne!rly $3 billion in revenue isn’t ex!ctly the wild-wild West, but the phr!se “this !in’t our first rodeo” rings true. Atl!ssi!n st!rted in 2002 with ! $10,000- limit credit c!rd, so we h!ve 20 ye!rs of experience when it comes to disciplined choices !nd p!tient, long-term thinking !s we look tow!rds th!t $10 billion revenue milestone !nd beyond. And when it’s necess!ry, we’re not !fr!id to m!ke bold, c!lcul!ted moves th!t other comp!nies shy !w!y from. We seized opportunities during the economic turbulence of 2008-2009 to scoop up t!lent th!t wouldn’t h!ve been !v!il!ble otherwise !nd bro!dened our customer b!se by offering $10 st!rter licenses for our products. Tod!y we’re echoing th!t !ppro!ch with Free editions of our Cloud products !nd !mbitions to more th!n double our he!dcount over the next few ye!rs. Pl!ying offense when others were throwing off their b!ck foot x worked for us then, !nd we’re confident it will work for us now. Atl!ssi!n’s v!lues endure no m!tter wh!t the m!rket conditions. We’ll continue to be tr!nsp!rent, c!re for our customers !nd te!ms, b!l!nce opportunity versus risk, !nd be the ch!nge we w!nt to see in the world. Th!t’s how we’ll continue to win.

Q4 FY22 7 Welcoming new CFO Joe Binz We !re thrilled to !nnounce th!t Joe Binz will join Atl!ssi!n !s CFO on September 6, 2022. Joe brings more th!n 25 ye!rs of fin!nce le!dership !nd experience in the technology industry. Since 2014, he h!s held the role of Corpor!te Vice President, Fin!nce !t Microsoft, where he w!s responsible for le!ding the comp!ny’s fin!nci!l pl!nning !nd !n!lysis, investor rel!tions, !cquisition integr!tion, !nd procurement functions. Over his twenty-ye!r c!reer with Microsoft, he w!s ! pivot!l fin!nce le!der where he most not!bly guided the comp!ny’s business tr!nsform!tion through its multi-billion doll!r move to the cloud. Prior to his time !t Microsoft, Joe spent eight ye!rs !t Intel where he held ! v!riety of fin!nce roles supporting m!nuf!cturing oper!tions, product groups, !nd Intel C!pit!l. He holds ! B!chelor of Science in Fin!nce from the University of Illinois Urb!n!-Ch!mp!ign, !nd ! M!ster of Business Administr!tion from the University of Michig!n’s Ross School of Business. We’ve both enjoyed getting to know Joe over the p!st few months !nd couldn’t be more excited for him to join the TEAM. We end FY22 with tremendous gr!titude for the w!y our customers, p!rtners, !nd employees st!y focused on delivering gre!t products !nd building ! vibr!nt community !round Atl!ssi!n. Here’s to the ro!d !he!d, !nd to unle!shing the potenti!l of every te!m. Mike Cannon-Brookes Co-founder and co-CEO Scott Farquhar Co-founder and co-CEO MIKE & SCOT T The bottom line ‣ Despite the current clim!te of uncert!inty, Atl!ssi!n continues to m!rch !he!d. We h!ve unw!vering conviction in our business model, te!m, !nd !bility to keep winning in our three glob!l m!rkets. ‣ Cloud migr!tions !nd revenue growth rem!in robust, with net exp!nsion r!te in the Cloud exceeding 130% (with l!rge customers topping 140%). ‣ Our Te!m Anywhere progr!m !round remote work continues to offer our employees more flexibility !nd cre!te ever-l!rger t!lent pools to hire from !s we sc!le tow!rd $10 billion in revenue !nd beyond.

Q4 FY22 8 Atl!ssi!n continued to see he!lthy growth in !ll segments of our customer b!se th!nks to our full l!dder of Cloud product editions from Free to Enterprise. Our hyper-efficient self-serve s!les funnel l!nded 37,869 net new customers in FY22, with 8,048 coming in this p!st qu!rter. Th!t brings our tot!l customer count to 242,623. Behind the scenes, our innov!tion m!chine (!k!, our R&D te!ms) is !lw!ys finding new w!ys to inspire !nd delight our customers. The incredible v!lue we deliver keeps customers coming b!ck for more, !llowing us to exp!nd our footprint within their w!lls, which cre!tes ! virtuous cycle th!t fuels even more R&D investment. We continue to enh!nce our existing products – Jir! Service M!n!gement’s new knowledge b!se, for ex!mple – while l!unching new products like Atl!s !nd Comp!ss th!t come out of our intern!l incub!tor progr!m, Point A. Customers fired up tens of thous!nds of inst!nces of our Point A products in FY22, !nd we’re ge!ring up for even more in FY23. And we do !ll of this on the b!ck of our industry-le!ding GTM model. Customer highlights Cameron Deatsch Chief Revenue Officer Q3'20 Q4'20 Q1'21 Q2'21 Q3'21 Q4'21 Q1'22 Q2'22 Q3'22 Q4'22 242,623234,575226,521 216,500 204,754 188,033 174,948 166,180159,433156,863 In Q1’22, we refined our definition of a customer to capture unique domains that have at least one active and paid product license or subscription, with 2 or more seats, excluding starter licenses/subscriptions. The primary difference between the customer count under the prior and updated definition is that we are no longer including Trello single-user accounts in the customer count. For each period ended Customers

Q4 FY22 9 Once customers l!nd with us, we c!n identify those with the highest exp!nsion potenti!l with surgic!l precision !nd focus our high-touch t!ctics on those org!niz!tions. We !lre!dy serve over two-thirds of the Fortune 500, yet no one customer represents more th!n 1% of our tot!l revenue. This str!tegy, bolstered by our ecosystem of !pps th!t m!ke the core products stickier, is wh!t drives the envi!ble lifetime customer spend Atl!ssi!n enjoys. See you in Septemmmber… " As Mike !nd Scott s!id !bove, we’ve never felt more confident !bout our str!tegies in e!ch of our three m!rkets, !nd the secul!r trends th!t reinforce them. I encour!ge you to watch our three market-specific keynote sessions from Team ‘22 if you missed them b!ck in April. You’ll get to see !ll the l!test product upd!tes in !ction, !nd he!r more !bout our vision for the future of !gile !nd DevOps, IT service m!n!gement, !nd work m!n!gement. Building on the success of Te!m ’22, Atl!ssi!n is holding events t!ilored to e!ch of our m!rkets for the first time ever. We’ll kick things off in September with ! work m!n!gement event, Atlassian Presents: Work Life. Events for the other m!rkets will follow l!ter in FY23. E!ch event will highlight our le!dership in these m!rkets, build deeper rel!tionships with our glob!l !udience, !nd give !ttendees !n up-close view of how Atl!ssi!n products c!n help them coll!bor!te more effectively. So m!rk your c!lend!rs for September 29th. Whether you join us in person !t the Ch!se Center in S!n Fr!ncisco, or enjoy the live stre!ms from wherever you !re, I hope you c!n be there !s we explore how te!ms c!n work differently, together.

Q4 FY22 10 Financial highlights Fourth quarter fiscal year 2022 highlights Atl!ssi!n turned in !nother qu!rter of strong fin!nci!l perform!nce in Q4’22, c!pping off !nother ye!r of ste!dy execution !g!inst our long-term go!ls. We continue to see momentum in Cloud migr!tions !nd growing dem!nd for our products. We !re entering FY23 with ! cle!r ro!dm!p !nd conviction in the siz!ble opportunities th!t we h!ve identified. Highlights for Q4’22 include: • Subscription revenue grew by 55% ye!r-over-ye!r. Cloud revenue grew by 55% ye!r-over-ye!r !nd D!t! Center revenue grew by 60% ye!r-over-ye!r. We !re proud of these growth r!tes !s we closed out FY22 in strong f!shion. • Cloud revenue continued to see dur!ble ye!r-over-ye!r growth, !g!inst ! tough comp!re. The growth w!s prim!rily driven by dem!nd from existing customers. • D!t! Center continued to see strong dem!nd, driven in p!rt by t!ilwinds from some customers purch!sing !he!d of pricing ch!nges !nd the reduction of loy!lty discounts. A reconciliation of IFRS to non-IFRS measures is provided within the tables at the end of this letter as well as in our earnings press release, and on our Investor Relations website. 3968-
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 (U.S. $ in thousands, except percentage data) Revenue • One of the things we’re most proud of is we continue to execute well !g!inst our !mbitious hiring pl!ns. We !dded 634 net new Atl!ssi!ns in Q4’22, !nd over 2,300 net new Atl!ssi!ns in FY22, bringing our tot!l he!dcount to 8,813. Most of our new hires !re focused on R&D. We will lever!ge our unique culture, “Te!m Anywhere,” !nd our fin!nci!l c!p!city to continue !dding top-tier t!lent in FY23. • We c!pped off FY22 with strong free c!sh flow results, even !s we continue to invest !g!inst the siz!ble m!rket opportunities in front of us. Free c!sh flow for Q4’22 tot!led $194.7 million, representing ! 26% free c!sh flow m!rgin. Our strong fin!nci!l position provides us with the flexibility to invest purposefully !nd cre!te v!lue for our customers. Q3’21 Q4’21 Q1’22 Q2’22 Q3’22 Q4’22 $759.8$740.5 $688.5 $614.0 $559.5$5 8.7 Total revenue U.S. $ in millions (year-over-year growth rate in %) 37% 34% 30% 38% 30% 36%

Q4 FY22 12 (U.S. $ in millions, except percentage data) Revenues by deployment $759.8$740.5 $688.5 $614.0 $559.5$568.7 Q3’21 Q4’21 Q1’22 Q2’22 Q3’22 Q4’22 $117.6 $132.3 $135.5 $139.5 $140.3$164.2 $49.3 $57.6 $49.8 $45.4 $39.9 $59.9 $158.9 $151.1 $139.1 $111.2 $99.1 $94.7 $434.0$399.5$364.1 $317.9$280.2$249.9 Cloud Data Center Marketplace and services Server (2) (1) Note: revenue totals may not foot due to rounding Year-over-year growth % Q3’21 Q4’21 Q1’22 Q2’22 Q3’22 Q4’22 Cloud 35% 47% 53% 58% 60% 55% Data Center 75% 62% 68% 83% 59% 60% Marketplace and services 86% 13% 26% 20% (4%) 24% Server 17% (2%) (7%) (12%) (19%) (16%) Total revenues 38% 30% 34% 37% 30% 36% Included in Server is perpetual license revenue. Perpetual license revenue is captured as other revenue on the Consolidated Statements of Operations. (1) Included in Marketplace and services is premier support revenue. Premier support is a subscription-based arrangement for a higher level of support across different deployment options. Premier support is recognized as subscription revenue on the Consolidated Statements of Operations as the services are delivered over the term of the arrangement. (2)

Q4 FY22 Q4’22 oper!ting m!rgin w!s imp!cted by !pproxim!tely one percent!ge point due to one-time costs we incurred !s we supported ! sm!ll cohort of customers through !n outage in April 2022, fully restored their inst!nces, !nd m!de improvements to enh!nce our intern!l processes. 13 (U.S. $ in thousands, except percentage data) Margins, operating expenses, and operating income Headcount Tot!l employee he!dcount w!s 8,813 !t the end of Q4’22, !n incre!se of 634 net new employees since the end of Q3’22. Most of the new hires were in R&D. Net income (U.S. $ in thousands, except per share data) 3968-
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Q4 FY22 14 Financial targets Fiscal 2023 outlook Revenue We continue to be ple!sed with the p!ce of our Cloud migr!tions, !nd !s we’ve previously st!ted, we h!ve ! multi-ye!r migr!tion journey !he!d of us. As ! reminder, while we h!ve discontinued s!les of new Server licenses in Q3’21, !s well !s upgr!des of existing Server licenses in Q3’22, we will continue to offer m!inten!nce !nd support to Server customers until Febru!ry 2024. As ! result, we continue to expect v!ri!bility in our revenue growth qu!rter-to-qu!rter !s Server customers choose the timing of when to migr!te to our Cloud or D!t! Center offerings. We believe this v!ri!bility will be tr!nsitory !s we progress through the end-of-life d!te of Server in Febru!ry 2024. We were ple!sed with our Q4’22 results, which give us strong momentum going into FY23 !nd confidence to re!ffirm our Cloud revenue growth t!rgets of !pproxim!tely 50% for the next two fisc!l ye!rs. As mentioned e!rlier, we !re not insul!ted from bro!der m!croeconomic imp!cts. We !re seeing ! modest decre!se in the conversion r!tes of Free inst!nces upgr!ding to p!id pl!ns, but nothing we !re seeing right now is ch!nging our outlook. As ! reminder, over 90% of our revenue in FY22 w!s derived from existing customers, !nd this dyn!mic h!s been consistent in our business over the ye!rs. We will rem!in vigil!nt !nd continue to inspect !ll !spects of our business relying on our well refined !n!lytics !nd underst!nding of our funnels. As we n!vig!te this environment, we will continue our focus on delivering long-term v!lue to customers. This focus h!s underpinned our business model !nd growth over the p!st 20 ye!rs, !nd will continue to drive our business going forw!rd. .2&2(.&0
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Q4 FY22 15 In FY23, we expect to see the following trends: SUBSCRIPTION REVENUE • Cloud revenue • We !re reiter!ting our expect!tions th!t Cloud revenue growth will be !pproxim!tely 50% ye!r-over-ye!r for both FY23 !nd FY24, with !pproxim!tely 10 points of this growth driven by migr!tions in both ye!rs. • Cloud revenue will continue to be the prim!ry driver of revenue growth. • We expect our Cloud revenue growth to be rel!tively consistent over the course of FY23. • D!t! Center revenue • We s!w strong D!t! Center revenue growth in FY22, benefited in p!rt by event-driven dem!nd resulting from customers purch!sing !he!d of price incre!ses th!t went into effect during Q3’22 !nd the reduction of loy!lty discounts !t the st!rt of Q1’23. • As ! reminder, for D!t! Center revenue, ! portion is recognized up-front in subscription revenue in the period th!t the subscription begins, while the rem!inder is recognized r!t!bly over the life of the contr!ct. • We expect D!t! Center revenue to m!int!in ! high growth r!te in Q1’23, before moder!ting over the rem!ining three qu!rters of FY23. MAINTENANCE REVENUE • We expect m!inten!nce revenue to continue to slowly contr!ct over the course of FY23. In Q4’23, we expect m!inten!nce revenue to decline to !pproxim!tely $75 million. OTHER REVENUE • We expect other revenue to be !pproxim!tely fl!t to slightly down rel!tive to FY22. • We do not expect !ny further perpetu!l license revenue in FY23. Perpetu!l license revenue, which w!s recognized in other revenue, tot!led !pproxim!tely $30 million in FY22. • M!rketpl!ce revenue, which is reflected in other revenue, will continue to be imp!cted by the ongoing mix shift of the s!le of third-p!rty !pps for Server !nd D!t! Center to Cloud. S!les of third-p!rty Cloud !pps h!ve ! lower M!rketpl!ce t!ke r!te rel!tive to Server !nd D!t! Center, which is designed to incentivize further Cloud !pp development. • Our focus rem!ins on driving ! growth r!te on s!les of third-p!rty Cloud !pps gre!ter th!n th!t of our own products. In FY22, we executed well on this go!l, !s gross s!les of third-p!rty Cloud !pps in the M!rketpl!ce grew more th!n 10 percent!ge points f!ster th!n s!les of our own Cloud products.

Q4 FY22 16 • M!rketpl!ce revenue growth ye!r-over-ye!r will see ! slight he!dwind bec!use of the D!t! Center !nd Server event-driven !pp purch!sing, th!t w!s prim!rily driven by pricing ch!nges, th!t occurred in FY22. • As ! reminder, revenue on the s!le of third-p!rty M!rketpl!ce !pps is recognized in the period the product is purch!sed. Profitability We continued to execute well on our pl!ns to invest !g!inst our l!rge m!rket opportunities. We exit FY22 h!ving hired 2,300+ net new Atl!ssi!ns, !dv!nced our pl!tform, rolled out new fe!tures to existing Cloud products, !nd continued to innov!te with new product offerings. Yet !s we look forw!rd, we see m!ny signific!nt opportunities !s we continue to migr!te customers to the Cloud, !s well !s !cross !gile !nd DevOps, ITSM, !nd work m!n!gement. In FY23, we will continue to invest purposefully to drive long-term dur!ble growth. We will continue to hire t!lent from !cross the globe, prim!rily in R&D. We expect the following dyn!mics to imp!ct our m!rgins in FY23: • Gross m!rgin will decre!se modestly in FY23, due to the continued business mix shift to Cloud. This imp!ct will be prim!rily driven by incre!sed hosting costs for Cloud customers, !s well !s !ddition!l personnel costs to support Cloud migr!tions !nd our Cloud customer b!se. We expect gross m!rgins to be lower in the second h!lf th!n in the first h!lf. • Oper!ting m!rgin will be in the mid-teens % in FY23 !s we r!mp our p!ce of hiring, focusing prim!rily in R&D, to seize on the opportunities in front of us. We expect oper!ting m!rgins to be lower in the second h!lf th!n in the first h!lf. • Free c!sh flow is expected to be imp!cted !s ! result of the reduction in oper!ting m!rgin in FY23. Addition!lly, free c!sh flow m!y be imp!cted !s ! result of the continued business mix shift to the Cloud. M!inten!nce contr!cts for our Server products !nd subscription contr!cts for our D!t! Center products !re only offered on !nnu!l terms, while we offer subscriptions for our Cloud products on both !nnu!l !nd monthly terms. In the short term, the shift to the Cloud !nd the potenti!l mix ch!nge in billing terms m!y cre!te ! he!dwind for free c!sh flow. Over the long term, !s more enterprise customers migr!te to the Cloud, we expect !ny such he!dwind to subside. • As ! reminder, our free c!sh flow results see se!son!lity qu!rter-to-qu!rter. Q1 is historic!lly our lowest free c!sh flow m!rgin result in ! fisc!l ye!r, due to when employee bonuses !re p!id out. In FY23, we expect the timing of cert!in income t!x p!yments to shift from Q2 to Q1, !dding !ddition!l se!son!lity.

Q4 FY22 17 Share count In FY23, we expect to see ! me!ningful incre!se in our sh!re-b!sed compens!tion (SBC) expense !s we continue to pl!y offense !nd invest in our te!m. Rec!ll th!t we report our fin!nci!l st!tements in !ccord!nce with IFRS. SBC is recognized on ! front-lo!ded schedule comp!red to U.S. GAAP. We !re forec!sting !pproxim!tely 2% sh!re count dilution under IFRS for FY23. Redomiciling from the United Kingdom to the United States Previously, we sh!red th!t we !re exploring redomiciling our p!rent holding comp!ny from the United Kingdom to the United St!tes. Since then, our Bo!rd of Directors h!s !pproved the redomicili!tion, !nd we will be seeking sh!reholder !pprov!l of the redomicili!tion !t two speci!l meetings of the sh!reholders to be held on August 22, 2022. If Atl!ssi!n’s sh!reholders !pprove the redomicili!tion, it is expected to become effective on September 30, 2022. As ! reminder, we believe moving our p!rent entity to the United St!tes will incre!se our !ccess to ! bro!der set of investors, support inclusion in !ddition!l stock indices, improve fin!nci!l reporting comp!r!bility with our industry peers, stre!mline our corpor!te structure, !nd provide more flexibility in !ccessing c!pit!l. If the tr!ns!ction is !pproved by our sh!reholders, we will tr!nsition our !ccounting st!nd!rds from IFRS to U.S. GAAP (GAAP) beginning in Q1’23. We expect the following !re!s will be !ffected: • Sh!re-b!sed compens!tion – GAAP utilizes “str!ight-line” r!t!ble expense recognition inste!d of “gr!ded” front-lo!ded expense recognition !s currently done under IFRS. This ch!nge would result in pushing out our currently front-lo!ded expense recognition of SBC to l!ter ye!rs, p!rticul!rly !s we continue to incre!se employee he!dcount. • Le!ses – Under GAAP, we will likely see ! slight expense del!y to l!ter periods. • Str!tegic investments – Under GAAP, we will be required to record the qu!rterly m!rk-to- m!rket f!ir v!lue movements of our equity investments on our Consolid!ted St!tements of Oper!tions, while under IFRS, this is not required. This ch!nge would introduce qu!rterly fluctu!tions on our Consolid!ted St!tements of Oper!tions (other non-oper!ting expense, net). • Exch!nge!ble senior notes – The !mortiz!tion of the debt discount !nd issu!nce costs rel!ting to our exch!nge!ble senior notes, which were fully settled in Q2’22, follow different timing recognition rules under GAAP. This difference will result in ! portion of !mortiz!tion shifting from FY21 to FY22. • Income t!x !ccounting – This will be !ffected by the !bove !ccounting ch!nges, in !ddition to v!rious t!x-specific guid!nce, including the requirements !nd methodologies for deferred t!xes recognition, v!lu!tion !llow!nces, !nd !nnu!l effective t!x r!te c!lcul!tions. The !bove !re!s will h!ve no imp!ct to revenue !nd !n imm!teri!l imp!ct to free c!sh flow. If the redomicili!tion is !pproved by our sh!reholders, shortly !fter the effective d!te of September 30, 2022 we will furnish supplement!ry fin!nci!l d!t! th!t summ!rizes key fin!nci!l metrics !nd results for FY21 !nd FY22 under GAAP.

Q4 FY22 ATLASSIAN CORPORATION PLC Consolidated statements of operations (U.S. $ and shares in thousands, except per share data) (unaudited) 18

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Q4 FY22 23 FORWARD-LOOKING STATEMENTS This shareholder letter contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, which statements involve substantial risks and uncertainties. All statements other than statements of historical fact could be deemed forward looking, including risks and uncertainties related to statements about our products, business model, customers, employees, macroeconomic environment, future investments, anticipated growth, platform, proposed redomiciliation, outlook, technology and other key strategic areas, and our financial targets such as revenue, share count, and IFRS and non-IFRS financial measures including gross margin, operating margin, and net income (loss) per diluted share. We undertake no obligation to update any forward-looking statements made in this shareholder letter to reflect events or circumstances after the date of this shareholder letter or to reflect new information or the occurrence of unanticipated events, except as required by law. The achievement or success of the matters covered by such forward-looking statements involves known and unknown risks, uncertainties and assumptions. If any such risks or uncertainties materialize or if any of the assumptions prove incorrect, our results could differ materially from the results expressed or implied by the forward-looking statements we make. You should not rely upon forward-looking statements as predictions of future events. Forward-looking statements represent our management’s beliefs and assumptions only as of the date such statements are made. Further information on these and other factors that could affect our financial results is included in filings we make with the Securities and Exchange Commission from time to time, including the section titled “Risk Factors” in our most recent Forms 20-F and 6-K (reporting our quarterly results). These documents are available on the SEC Filings section of the Investor Relations section of our website at: https://investors.atlassian.com. ABOUT NON-IFRS FINANCIAL MEASURES Our reported results and financial targets include certain non-IFRS financial measures, including non-IFRS gross profit, non-IFRS operating income, non-IFRS net income, non-IFRS net income per diluted share, and free cash flow. Management believes that the use of these non-IFRS financial measures provides consistency and comparability with our past financial performance, facilitates period-to-period comparisons of our results of operations, and also facilitates comparisons with peer companies, many of which use similar non-IFRS or non-GAAP financial measures to supplement their IFRS or GAAP results. Non-IFRS results are presented for supplemental informational purposes only to aid in understanding our results of operations. The non-IFRS results should not be considered a substitute for financial information presented in accordance with IFRS, and may be different from non-IFRS or non- GAAP measures used by other companies. Our non-IFRS financial measures include: • Non-IFRS gross profit. Excludes expenses related to share-based compensation and amortization of acquired intangible assets. • Non-IFRS operating income. Excludes expenses related to share-based compensation and amortization of acquired intangible assets. • Non-IFRS net income and non-IFRS net income per diluted share. Excludes expenses related to share-based compensation, amortization of acquired intangible assets, non-coupon impact related to exchangeable senior notes and capped calls, the related income tax effects on these items, and a discrete tax impact resulting from a non-recurring transaction. • Free cash flow. Free cash flow is defined as net cash provided by operating activities less capital expenditures, which consists of purchases of property and equipment and payments of lease obligations. Our non-IFRS financial measures reflect adjustments based on the items below: • Share-based compensation. • Amortization of acquired intangible assets. • Non-coupon impact related to exchangeable senior notes and capped calls: • Amortization of notes discount and issuance costs. • Mark to fair value of the exchangeable senior notes exchange feature. • Mark to fair value of the related capped call transactions. • Net loss on settlements of exchangeable senior notes and capped call transactions. • The related income tax effects on these items, and a discrete tax impact resulting from a non-recurring transaction. • Purchases of property and equipment and payments of lease obligations. We exclude expenses related to share-based compensation, amortization of acquired intangible assets, non-coupon impact related to exchangeable senior notes and capped calls, the related income tax effects on these items, and a discrete tax impact resulting from a non-recurring transaction from certain of our non-IFRS financial measures as we believe this helps investors understand our operational performance. In addition, share-based compensation expense can be difficult to predict and varies from period to period and company to company due to differing valuation methodologies, subjective assumptions, and the variety of equity instruments, as well as changes in stock price. Management believes that providing non-IFRS financial measures that exclude share-based compensation expense, amortization of acquired intangible assets, non-coupon impact related to exchangeable senior notes and capped calls, the related income tax effects on these items, and a discrete tax impact resulting from a non-recurring transaction allow for more meaningful comparisons between our results of operations from period to period.

Q4 FY22 24 Management considers free cash flow to be a liquidity measure that provides useful information to management and investors about the amount of cash generated by our business that can be used for strategic opportunities, including investing in our business, making strategic acquisitions, and strengthening our statement of financial position. Management uses non-IFRS gross profit, non-IFRS operating income, non-IFRS net income, non-IFRS net income per diluted share, and free cash flow: • As measures of operating performance, because these financial measures do not include the impact of items not directly resulting from our core operations. • For planning purposes, including the preparation of our annual operating budget. • To allocate resources to enhance the financial performance of our business. • To evaluate the effectiveness of our business strategies. • In communications with our Board of Directors and investors concerning our financial performance. The tables in this shareholder letter titled “Reconciliation of IFRS to non-IFRS Results” and “Reconciliation of IFRS to non-IFRS financial targets” provide reconciliations of non-IFRS financial measures to the most recent directly comparable financial measures calculated and presented in accordance with IFRS. We understand that although non-IFRS gross profit, non-IFRS operating income, non-IFRS net income, non-IFRS net income per diluted share, and free cash flow are frequently used by investors and securities analysts in their evaluation of companies, these measures have limitations as analytical tools, and you should not consider them in isolation or as substitutes for analysis of our results of operations as reported under IFRS. ABOUT ATLASSIAN Atlassian unleashes the potential of every team. Our team collaboration and productivity software helps teams organize, discuss and complete shared work. Teams at more than 240,000 customers, across large and small organizations - including Bank of America, Redfin, NASA, Verizon, and Dropbox - use Atlassian's project tracking, content creation and sharing, and service management products to work better together and deliver quality results on time. Learn more about our products, including Jira Software, Confluence, Jira Service Management, Trello, Bitbucket, and Jira Align at https://atlassian.com. Investor Relations contact: Martin Lam, IR@atlassian.com Media contact: Marie-Claire Maple, press@atlassian.com