Income Taxes (Tables)

12 Months Ended

Jan. 31, 2017

Income Tax Disclosure [Abstract]

Provision for income taxes

The provision for income taxes consists of the following:

	Fiscal year ended January 31,
	2017			2016			2015
Federal:
Current	$	1.6		$	(4.7	)	$	(43.8	)
Deferred	8.4			220.9			(11.9		)
State:
Current	(1.9		)	0.5			(13.2		)
Deferred	1.3			20.9			9.0
Foreign:
Current	93.9			68.4			69.5
Deferred	(45.0		)	4.2			(8.4		)
	$	58.3		$	310.2		$	1.2

Differences between the U.S. statutory rate and the aggregate income tax provision

The differences between the U.S. statutory rate and the aggregate income tax provision are as follows:

	Fiscal year ended January 31,
	2017			2016			2015
Income tax provision (benefit) at U.S. Federal statutory rate	$	(177.0	)	$	(7.1	)	$	29.0
State income tax benefit, net of the U.S. Federal benefit	(17.3		)	(7.6		)	(4.0		)
Foreign income taxed at rates different from the U.S. statutory rate	22.3			(29.4		)	(40.0		)
U.S. valuation allowance	233.0			345.0			2.9
Increase in attributes due to ASU 2016-9 adoption	(119.4		)	—			—
Change in valuation allowance from ASU 2016-9 adoption	119.4			—			—
Tax effect of non-deductible stock-based compensation	18.8			19.3			15.7
Stock compensation windfall shortfall	(23.0		)	—			—
Research and development tax credit benefit	(10.3		)	(9.4		)	(7.2		)
Closure of income tax audits and changes in uncertain tax positions	8.2			(4.7		)	(0.7		)
Tax effect of officer compensation in excess of $1.0 million	2.2			1.4			2.4
Non-deductible expenses	2.0			2.6			2.2
Other	(0.6		)	0.1			0.9
	$	58.3		$	310.2		$	1.2

Components of Deferred Tax Assets and Liabilities

Significant components of Autodesk’s deferred tax assets and liabilities are as follows:

	January 31,
	2017			2016
Stock-based compensation	$	37.6		$	37.5
Research and development tax credit carryforwards	136.7			91.3
Foreign tax credit carryforwards	127.3			51.1
Accrued compensation and benefits	39.5			41.5
Other accruals not currently deductible for tax	18.7			23.6
Purchased technology and capitalized software	76.9			64.3
Fixed assets	24.3			18.6
Tax loss carryforwards	173.6			17.6
Deferred Revenue	128.3			56.7
Other	27.6			13.9
Total deferred tax assets	790.5			416.1
Less: valuation allowance	(748.0		)	(398.0		)
Net deferred tax assets	42.5			18.1
Indefinite lived intangibles	(70.1		)	(54.1		)
Unremitted earnings of foreign subsidiaries	—			(22.4		)
Total deferred tax liabilities	(70.1		)	(76.5		)
Net deferred tax assets	$	(27.6	)	$	(58.4	)

Unrecognized Tax Benefits Reconciliation, Table

A reconciliation of the beginning and ending amount of the gross unrecognized tax benefits is as follows:

	Fiscal Year Ended January 31,
	2017			2016			2015
Gross unrecognized tax benefits at the beginning of the fiscal year	$	254.3		$	245.8		$	222.1
Increases for tax positions of prior years	11.9			1.4			3.2
Decreases for tax positions of prior years	(4.1		)	(7.0		)	(2.5		)
Increases for tax positions related to the current year	11.1			15.8			33.2
Decreases relating to settlements with taxing authorities	(10.8		)	(0.5		)	(5.4		)
Reductions as a result of lapse of the statute of limitations	(1.0		)	(1.2		)	(4.8		)
Gross unrecognized tax benefits at the end of the fiscal year	$	261.4		$	254.3		$	245.8