Alabama does not tax SSDI benefits on your state return

Alabama excludes Social Security Disability Insurance (SSDI) from state taxable income. This means you will not owe Alabama state income tax on your SSDI payments, regardless of how much you receive or what other income you have. This is true whether you file as a single filer or jointly with a spouse.

However, the federal government may still tax your SSDI depending on your total income. The fact that Alabama does not tax SSDI does not change your federal tax situation. You may still need to file a federal return and may owe federal tax on a portion of your benefits if your combined income exceeds certain thresholds.

Key Takeaways

  • Alabama does not tax SSDI benefits under state law, so your SSDI is not subject to Alabama income tax.
  • Federal tax rules are separate from Alabama state rules, and the IRS may tax part of your SSDI if your combined income is high enough.
  • Combined income for federal tax purposes includes SSDI, wages, interest, and other sources, but not all of it counts the same way.
  • You may still need to file a federal return even if you owe no Alabama tax, depending on your total income and filing status.

What counts as combined income for federal SSDI taxation

The federal government uses a formula called combined income to decide whether your SSDI is taxable. Combined income is not the same as your total income. It includes one-half of your SSDI benefits plus all of your other income—wages, self-employment income, interest, dividends, rental income, and taxable pensions.

For example, if you receive $1,500 per month in SSDI ($18,000 per year) and earn $15,000 in wages, your combined income is $9,000 (half of $18,000) plus $15,000, which equals $24,000. This combined income figure determines whether any of your SSDI is taxable to the federal government.

Some income does not count toward combined income. Supplemental Security Income (SSI) is not included. Neither are certain veterans' benefits, workers' compensation, or gifts. If you are unsure whether a specific income source counts, the IRS Publication 915 lists all the sources that do and do not factor into the calculation.

Federal tax thresholds for SSDI in 2024

Whether you owe federal tax on SSDI depends on your filing status and your combined income. If you are single and your combined income is $25,000 or less, none of your SSDI is taxable. If your combined income is between $25,000 and $34,000, up to 50 percent of your benefits may be taxable. If your combined income exceeds $34,000, up to 85 percent of your benefits may be taxable.

If you are married and file jointly, the thresholds are higher. If your combined income is $32,000 or less, none of your SSDI is taxable. Between $32,000 and $44,000, up to 50 percent may be taxable. Above $44,000, up to 85 percent may be taxable. If you are married but file separately, the rules are much stricter and almost always result in taxation of your benefits.

These thresholds do not change with inflation. Congress sets them by law, and they have remained the same since 1993. This means that over time, more beneficiaries with modest incomes cross into the taxable range.

How to report SSDI on your federal return

You will receive a Form SSA-1099-SM from Social Security each January showing your SSDI benefits for the prior year. This form goes in Box 5, which is labeled "Benefits received." You report this amount on your federal Form 1040 or 1040-SR.

If you determine that some of your SSDI is taxable based on the combined income formula, you will use IRS Publication 915 to calculate the exact amount. The publication includes a worksheet that walks you through the calculation step by step. Many tax software programs also include this calculation automatically if you enter your SSDI amount.

If you do not have other income and your SSDI is not taxable, you may still need to file a federal return if your SSDI alone exceeds the standard deduction for your age and filing status. In 2024, the standard deduction for a single person under 65 is $14,600. If you are 65 or older, it is $17,550. If your SSDI exceeds these amounts, you must file.

When you might owe both federal and Alabama tax

Because Alabama does not tax SSDI but the federal government may, it is possible to owe federal tax but not Alabama tax. This is the most common scenario for SSDI beneficiaries in Alabama who have other income.

You could also owe Alabama tax on other income—wages, interest, or self-employment income—while owing no federal tax on your SSDI. Alabama taxes ordinary income at rates ranging from 2 percent to 5 percent depending on your income bracket. If you have wages or self-employment income, you will owe Alabama tax on that income regardless of your SSDI.

The key is to calculate your federal and state tax situations separately. Do not assume that because Alabama does not tax SSDI, you owe no tax at all. Many beneficiaries with part-time work or other income sources end up owing federal tax, Alabama tax, or both.

Work incentives and tax planning for SSDI beneficiaries

If you are working while receiving SSDI, you may be using a work incentive such as the Student Earned Income Exclusion or Impairment Related Work Expenses (IRWE). These reduce the amount of earnings that count toward your SSDI work limit, but they do not reduce your taxable income for federal or state tax purposes. Wages you earn are still taxable income even if they do not count toward your SSDI payment.

Some beneficiaries benefit from tax planning that spreads income across years or structures self-employment income in ways that keep combined income below the federal thresholds. A tax professional familiar with SSDI can help you understand whether such strategies explore to your situation. The Social Security Administration also has a Work Incentives Planning and information (WIPA) project in Alabama that offers free counseling on how work affects your benefits and taxes.

Frequently Asked Questions

Do I have to file a federal tax return if I only receive SSDI and no other income?

Only if your SSDI exceeds the standard deduction for your age and filing status. In 2024, that is $14,600 for someone under 65, or $17,550 if you are 65 or older. If your SSDI is below that amount, you do not have to file federally. However, if you have other income, the rules change.

Can I deduct my SSDI from my Alabama taxable income?

No deduction is needed because Alabama does not tax SSDI in the first place. Your SSDI is straightforward not part of your Alabama taxable income. You only report income that Alabama actually taxes, such as wages or self-employment income.

If I work part-time and receive SSDI, how does that affect my taxes in Alabama?

Your wages are taxable to both Alabama and the federal government. Alabama taxes them at 2 to 5 percent depending on your income bracket. Federally, your wages count toward combined income and may cause some of your SSDI to become taxable. Your SSDI itself is not taxed by Alabama.

What if my SSDI is partially taxable federally but I live in Alabama?

You will owe federal tax on the taxable portion of your SSDI, but Alabama will not tax any of it. You report the taxable amount on your federal return using IRS Publication 915 to calculate it. On your Alabama return, you report only non-SSDI income.

Where can I get help calculating my federal SSDI tax in Alabama?

The IRS Publication 915 includes a worksheet and examples. Many tax software programs calculate it automatically. You can also contact the WIPA project in Alabama for free counseling, or speak with a tax professional who has experience with SSDI beneficiaries.