Exhibit (h)(123)

June 25, 2020

Brennan Hughes

Janus Capital Management LLC

151 Detroit Street

Denver, Colorado 80206

Dear Mr. Hughes:

Please be advised of the following:

• Janus Investment Fund (the “Trust”) has changed the name of Janus Henderson Global Technology Fund to Janus Henderson Global Technology and Innovation Fund, effective as of January 28, 2020.

• The Trustees of the Trust have previously approved plans to liquidate and terminate the following Funds:

⬛ Janus Henderson U.S. Growth Opportunities Fund, effective February 7, 2020;

⬛ Janus Henderson All Asset Fund, effective June 25, 2019;

⬛ Janus Henderson International Small Cap Fund, effective on or about May 22, 2020; and

⬛ Janus Henderson Diversified Alternatives Fund, effective on or about June 12, 2020;

• The Trustees of the Trust approved the establishment of Janus Henderson Global Sustainable Equity Fund as a new series of the Trust, effective on or about June 25, 2020.

• Below is a revised Schedule A to the Administration Agreement dated June 23, 2011, as may be further amended from time to time (the “Agreement”), between the Trust and Janus Capital Management LLC (“JCM”).

Pursuant to Section 5 of the Agreement, the Trust hereby requests that JCM acknowledge its acceptance of the terms contained in the revised Schedule.

Please indicate your acceptance of the foregoing by signing below.

By:	/s/ Kathryn Santoro
	Kathryn Santoro
	Vice President and Secretary
Janus Capital Management
By:	/s/ Brennan Hughes
	Brennan Hughes
	Chief Accounting Officer and Treasurer
Agreed to this 25th day of June 2020

Schedule A

List of Portfolios

Janus Investment Fund

• Janus Henderson Absolute Return Income Opportunities Fund

• Janus Henderson Adaptive Global Allocation Fund

• Janus Henderson Asia Equity Fund

• Janus Henderson Balanced Fund

• Janus Henderson Contrarian Fund

• Janus Henderson Developed World Bond Fund

• Janus Henderson Dividend & Income Builder Fund

• Janus Henderson Emerging Markets Fund

• Janus Henderson Emerging Markets Managed Volatility Fund

• Janus Henderson Enterprise Fund

• Janus Henderson European Focus Fund

• Janus Henderson Flexible Bond Fund

• Janus Henderson Forty Fund

• Janus Henderson Global Allocation Fund – Conservative

• Janus Henderson Global Allocation Fund – Growth

• Janus Henderson Global Allocation Fund – Moderate

• Janus Henderson Global Bond Fund

• Janus Henderson Global Equity Income Fund

• Janus Henderson Global Income Managed Volatility Fund

• Janus Henderson Global Life Sciences Fund

• Janus Henderson Global Real Estate Fund

• Janus Henderson Global Research Fund

• Janus Henderson Global Select Fund

• Janus Henderson Global Sustainable Equity Fund

• Janus Henderson Global Technology and Innovation Fund

• Janus Henderson Global Value Fund

• Janus Henderson Government Money Market Fund

• Janus Henderson Growth and Income Fund

• Janus Henderson High-Yield Fund

• Janus Henderson International Managed Volatility Fund

• Janus Henderson International Opportunities Fund

• Janus Henderson International Value Fund

• Janus Henderson Large Cap Value Fund

• Janus Henderson Mid Cap Value Fund

• Janus Henderson Money Market Fund

• Janus Henderson Multi-Sector Income Fund

• Janus Henderson Overseas Fund

• Janus Henderson Research Fund

• Janus Henderson Short-Term Bond Fund

• Janus Henderson Small-Mid Cap Value Fund

• Janus Henderson Small Cap Value Fund

• Janus Henderson Triton Fund

• Janus Henderson U.S. Managed Volatility Fund

• Janus Henderson Value Plus Income Fund

• Janus Henderson Venture Fund