The Alternative Minimum Tax (AMT) is a separate tax from regular income tax and applies to higher-income taxpayers who benefit from a lower regular tax due to certain kinds of income being subject to a lower tax rate as well as from certain deductions. The AMT sets a limit on those benefits. If the tax benefits would reduce total tax below the AMT limit, the taxpayer must pay the higher AMT amount. The AMT has two tax brackets: 26% and 28%.
The Tax Cuts and Jobs Act of 2017 made significant revisions to AMT, including a higher exemption amount, doubling the exemption phase-out, and reducing or repealing certain preference items. As a result, taxpayers who may have been subject to AMT prior to tax year 2018 may not have been subject to it in 2018 and subsequent years.
| 2017 | 2018 | 2019 | 2020 | ||
| Exemption | Single | $54,300 | $70,300 | $71,700 | $72,900 |
| MFJ | $84,500 | $109,400 | $111,700 | $113,400 | |
| HOH | $54,300 | $70,300 | $71,700 | $72,900 | |
| MFS | $42,250 | $54,700 | $55,850 | $56,700 | |
| QW | $84,500 | $109,400 | $111,700 | $113,400 | |
| 28% bracket threshold | Single | $187,800 | $191,100 | $194,800 | $197,900 |
| MFJ | $187,800 | $191,100 | $194,800 | $197,900 | |
| HOH | $187,800 | $191,000 | $194,800 | $197,900 | |
| MFS | $93,900 | $95,500 | $97,400 | $98,950 | |
| QW | $187,800 | $191,100 | $194,800 | $197,900 | |
| Exemption phaseout threshold | Single | $120,700 | $500,000 | $510,300 | $518,400 |
| MFJ | $160,900 | $1,000,000 | $1,020,600 | $1,036,800 | |
| HOH | $120,700 | $500,000 | $510,300 | $518,400 | |
| MFS | $80,450 | $500,000 | $510,300 | $518,400 | |
| QW | $160,900 | $1,000,000 | $1,020,600 | $1,036,800 | |
If the taxpayer received or claimed any of the following items in the tax year, Form 6251 must be completed:
- Accelerated Depreciation
- Tax exempt interest from private activity bonds
- Net operating loss deduction
- Alternative fuel vehicle refueling property tax
- Qualified electric vehicle credit
- Foreign tax credit
- Net qualified disaster loss and the return is reporting the standard deduction on Schedule A
- Section 1202 exclusion
- Amortization of pollution-control facilities or depletion
- Any general business credit on Form 3800 if either line 6 (in Part I) or line 25 is greater than zero
- Credit for prior year minimum tax
- Investment interest expense reported on Form 4952
- Income (or loss) from tax-shelter farm activities or passive activities, partnerships, S corporations, or activities for which the taxpayer isn’t at risk
- Income from long-term contracts not figured using the percentage-of-completion method
- Intangible drilling, circulation, research, experimental or mining costs
- AMT adjustments from an estate, trust, electing large partnership, or cooperative
- Stock by exercising an incentive stock option and the stock was not disposed in the same year
The rules for AMT are more complex than the rules for regular income tax. Keystone Tax Solutions Pro will calculate AMT if it is owed.
To add or edit Form 6251, from the Main Menu of the tax return (Form 1040) select:
- Other Taxes
- Alternative Minimum Tax (6251)
Credit For Prior Year Minimum Tax
If you are not liable for AMT this year, but you paid AMT in one or more previous years, you may be eligible to take a special minimum tax credit against your regular tax this year. If eligible, you should complete and attach Form 8801, Credit for Prior Year Minimum Tax – Individuals, Estates and Trusts. To access Form 8801, from the Main Menu of the tax return (Form 1040) select:
- Credits
- Prior Year Minimum Tax Credit (8801)
Note: This is a guide on entering Alternative Minimum Tax into the Keystone Tax Solutions Pro program. It is not intended as tax advice. For additional information refer to the Additional Information below.
Additional Information:
Instructions for Form 6251, Alternative Minimum Tax – Individuals