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Income Taxes (Tables) | 12 Months Ended
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Jan. 31, 2016
Income Tax Disclosure [Abstract] |
Provision for income taxes | The provision for income taxes consists of the following:
| Fiscal year ended January 31,
2016 |  | 2015 |  | 2014
Federal: |  |  |  |  |
Current | $ | (4.7 | ) |  | $ | (43.8 | ) |  | $ | 29.1 |
Deferred | 220.9 |  |  | (11.9 | ) |  | (41.4 | )
State: |  |  |  |  |
Current | 0.5 |  |  | (13.2 | ) |  | 0.6 |
Deferred | 20.9 |  |  | 9.0 |  |  | — |
Foreign: |  |  |  |  |
Current | 68.4 |  |  | 69.5 |  |  | 63.9 |
Deferred | 4.2 |  |  | (8.4 | ) |  | (1.1 | )
| $ | 310.2 |  |  | $ | 1.2 |  |  | $ | 51.1 |
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,
2016 |  | 2015 |  | 2014
Income tax provision at U.S. Federal statutory rate | $ | (7.1 | ) |  | $ | 29.0 |  |  | $ | 98.0 |
State income tax benefit, net of the U.S. Federal benefit | (7.6 | ) |  | (4.0 | ) |  | (2.9 | )
Foreign income taxed at rates different from the U.S. statutory rate | (29.4 | ) |  | (40.0 | ) |  | (57.1 | )
U.S. valuation allowance | 345.0 |  |  | 2.9 |  |  | 2.1 |
Tax effect of non-deductible stock-based compensation | 19.3 |  |  | 15.7 |  |  | 10.8 |
Research and development tax credit benefit | (9.4 | ) |  | (7.2 | ) |  | (8.8 | )
Closure of income tax audits and changes in uncertain tax positions | (4.7 | ) |  | (0.7 | ) |  | 3.6 |
Tax effect of officer compensation in excess of $1.0 million | 1.4 |  |  | 2.4 |  |  | 3.0 |
Non-deductible expenses | 2.6 |  |  | 2.2 |  |  | 2.6 |
Other | 0.1 |  |  | 0.9 |  |  | (0.2 | )
| $ | 310.2 |  |  | $ | 1.2 |  |  | $ | 51.1 |
Components of Deferred Tax Assets and Liabilities | Significant components of Autodesk’s deferred tax assets and liabilities are as follows:
| January 31,
2016 |  | 2015
Stock-based compensation | $ | 37.5 |  |  | $ | 39.9 |
Research and development tax credit carryforwards | 91.3 |  |  | 62.6 |
Foreign tax credit carryforwards | 51.1 |  |  | — |
Accrued compensation and benefits | 41.5 |  |  | 43.6 |
Other accruals not currently deductible for tax | 23.6 |  |  | 18.4 |
Purchased technology and capitalized software | 64.3 |  |  | 53.9 |
Fixed assets | 18.6 |  |  | 16.2 |
Tax loss carryforwards | 17.6 |  |  | 16.0 |
Deferred Revenue | 56.7 |  |  | 48.0 |
Other | 13.9 |  |  | 7.4 |
Total deferred tax assets | 416.1 |  |  | 306.0 |
Less: valuation allowance | (398.0 | ) |  | (70.8 | )
Net deferred tax assets | 18.1 |  |  | 235.2 |
Indefinite lived intangibles | (54.1 | ) |  | (40.7 | )
Unremitted earnings of foreign subsidiaries | (22.4 | ) |  | (9.4 | )
Total deferred tax liabilities | (76.5 | ) |  | (50.1 | )
Net deferred tax assets | $ | (58.4 | ) |  | $ | 185.1 |
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,
| 2016 |  | 2015 |  | 2014
Gross unrecognized tax benefits at the beginning of the fiscal year | $ | 245.8 |  |  | $ | 222.1 |  |  | $ | 212.7 |
Increases for tax positions of prior years | 1.4 |  |  | 3.2 |  |  | 1.8 |
Decreases for tax positions of prior years | (7.0 | ) |  | (2.5 | ) |  | (0.3 | )
Increases for tax positions related to the current year | 15.8 |  |  | 33.2 |  |  | 15.3 |
Decreases relating to settlements with taxing authorities | (0.5 | ) |  | (5.4 | ) |  | (4.6 | )
Reductions as a result of lapse of the statute of limitations | (1.2 | ) |  | (4.8 | ) |  | (2.8 | )
Gross unrecognized tax benefits at the end of the fiscal year | $ | 254.3 |  |  | $ | 245.8 |  |  | $ | 222.1 |

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