SSDI

SSDI is a federal program designed to provide financial assistance to individuals who are unable to work due to a qualifying disability. Funded by payroll taxes under the Federal Insurance Contributions Act (FICA), SSDI benefits are available to those who have accumulated a sufficient number of work credits and whose medical condition meets the Social Security Administration’s definition of disability. The program aims to provide a safety net for disabled workers who have contributed to the system and are now in need of support. Social security benefits include monthly retirement, survivor and disability benefits. They don’t include Supplemental Security Income (SSI) payments, which aren’t taxable.

As with any government-sponsored program, SSDI is complicated. The two most relevant characteristics for this document are:

If SSDI is approved, payments will be paid from the sixth full month after disability started, backfilling in a lump sum if necessary. See below for interactions with other insurances.

To simplify the computations and exposition, we assume SSDI starts after one year even though it really starts earlier.

While SSDI doesn’t cost anything, the average benefit was around $1,483 per month in 2022, and 80% of beneficiaries receive less than $2,000 per month —– much less than what most people need.

Social Security Disability Insurance Taxation

While SSDI benefits can be taxable, LTD benefits may not be taxed if you paid the premiums. The taxable portion of your SSDI benefits depends on your income, which includes all non-SSDI income, and 50% of your SSDI payments. This calculation typically excludes tax-free LTD payments, but include other sources of income such as tax-exempt interest, dividends and capital gains. The IRS sets base amounts for taxation, which vary depending on your filing status, whether it be single, married filing jointly, or another status (see Table 18.3).

When you receive a large lump-sum payment of back payments for SSDI (payments of benefits for the months you were disabled but not yet approved for benefits), it can significantly increase your income for that year, potentially leading to higher taxes. To mitigate this, the IRS permits you to allocate the SSDI benefits owed from previous years to those respective tax years. This method, known as “lump-sum election”, allows you to amend prior tax returns, thereby reducing the taxable income in the year you receive the lump-sum and potentially lowering your overall tax liability.

As of now, most states do not tax SSDI benefits; however, some do. States like Colorado, Connecticut, Kansas, Minnesota, Missouri, Montana, Nebraska, North Dakota, Rhode Island, Vermont, Utah, and West Virginia may tax SSDI benefits, often depending on factors such as your total income and filing status. It’s important to check the specific tax regulations of your state or consult with a tax professional to understand how your SSDI benefits will be treated.

The net amount of social security benefits that you receive from the SSA is reported in Box 5 of Form SSA-1099, Social Security Benefit Statement, and you report that amount on line 6a of Form 1040, U.S. Individual Income Tax Return or Form 1040-SR, U.S. Tax Return for Seniors.

You report the taxable portion of your social security benefits on line 6b of Form 1040 or Form 1040-SR.

Table 18.3: SSDI Taxation
Fraction of SSDI taxable Single Married filing jointly
0% [$0K, $25K] [$0K, $32K]
50% ($25K, $34K] ($32K, $44K]
85% ($34K, ) ____________________________________________________________________________________________________________________________________________________________ ($44K, )
________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

If you are lucky or have a spouse with a job, you might have a non-disability income of $30,000 per year. By including 50% of your annual SSDI benefit, it is likely that 85% of your SSDI benefit will become taxable based on the regular income tax regulations. Although your LTD benefits were previously not subject to taxes, now the portion that comes from SSDI is taxed. As a result, the value of paying LTD premiums to avoid income taxes is reduced.

For married couples filing joint tax returns, the IRS requires combining both spouses’ incomes and Social Security benefits to determine the taxable portion of those benefits. Even if only one spouse received Social Security payments during the tax year, the total combined income of both spouses must be considered when calculating the taxable amount of the benefits received. This requirement applies regardless of whether the spouse who did not collect benefits had any other income sources. The IRS mandates this combined income calculation for jointly filed returns involving any potentially taxable Social Security benefits.

SSDI payments in 2024 average $1,537 per month ($18.4K per year) and are capped at $3,822 per month ($45.8K per year). Read your annual Social Security statement available via your ssa.gov account for your exact amount.