What auxiliary benefits back pay is

When you receive back pay from Social Security Disability Insurance (SSDI), your family members who also receive benefits on your record may be may have access to to their own back pay. This is called auxiliary benefits back pay. It covers the months when they should have been receiving benefits but were not yet on your case — usually the time between when your disability began and when they were added to your record.

The Social Security Administration (SSA) calculates this separately from your own back pay. Your family members do not split your back pay with you. Instead, each person on your record gets their own back pay amount based on when they became may have access to and how many months passed before they started receiving payments.

Auxiliary beneficiaries are typically your spouse, ex-spouse (if married at least 10 years), and children under 19 (or up to 23 if in high school full-time). Each person's back pay depends on their relationship to you and the date they became may have access to to benefits.

Key Takeaways

  • Family members on your SSDI record receive their own separate back pay, not a share of yours.
  • Back pay for auxiliary beneficiaries covers the months between when they became may have access to and when they actually started receiving payments.
  • The SSA sends back pay checks to each family member individually, usually within 60 days of approval.
  • If a family member was on your record but later stopped receiving benefits, they may still have unclaimed back pay from earlier months.
  • Back pay amounts vary by family member because each person's benefit rate is calculated separately based on their relationship to you.

When family members become may have access to to auxiliary benefits

A family member becomes may have access to to benefits on your SSDI record on the first day of the month you are approved for SSDI — not the day you explore, but the day SSA determines your disability began. This is called your established onset date (EOD). If your onset date was January 15, 2022, your family members became may have access to starting January 1, 2022.

However, they do not receive any payments until they are actually added to your case and their benefits begin. The gap between when they became may have access to and when they were added creates the back pay owed to them. For example, if your onset date was January 2022 but your spouse was not added to your record until September 2022, they are may have access to to back pay for January through August — eight months of benefits they should have received.

Children born after your onset date become may have access to the month they are born. If you were approved with an onset date of March 2021 and a child was born in July 2023, that child becomes may have access to in July 2023, even though you have been receiving benefits for over two years.

How the SSA calculates auxiliary back pay amounts

The SSA calculates each family member's monthly benefit rate first, then multiplies it by the number of months they are owed. The monthly rate depends on their relationship to you and is usually a percentage of your primary insurance amount (PIA) — the base amount SSA uses to calculate all benefits on your record.

A spouse typically receives 32.5% of your PIA. A child typically receives 75% of your PIA. An ex-spouse receives the same as a current spouse if the marriage lasted at least 10 years. These percentages can shift if other family members are also on your record, because there is a family maximum — a cap on the total amount SSA will pay to all beneficiaries combined each month. When the family maximum is reached, individual benefit rates are reduced proportionally.

Once SSA determines the monthly rate, they count the number of months from the established onset date to the month benefits actually began. They subtract any months the person was not may have access to (for example, months they were working and earning above the substantial gainful activity limit, or months they were incarcerated). The result is the total back pay owed.

How back pay is paid to family members

The SSA typically sends back pay to each family member by check or direct deposit, depending on how they receive their regular monthly benefits. If a family member has set up direct deposit, their back pay usually arrives the same way. Checks are mailed to the address on file.

Back pay is usually sent within 60 days of the date SSA approves your SSDI case, though timing can vary depending on how complex your case is and whether there are any issues with the family member's information on file. If a family member has a representative payee (someone who manages their benefits because they are a minor or unable to manage funds), the back pay goes to the payee, not directly to the beneficiary.

The SSA sends back pay in a single lump sum, not spread across multiple months. This means a family member might receive several months or even years of back pay all at once. Some people use this money to pay debts or cover expenses they incurred during the months they were waiting for benefits to start.

Back pay for family members who are no longer on your record

If a family member was once on your SSDI record but is no longer receiving benefits, they may still have unclaimed back pay from the months they were may have access to. This happens when a child ages out (turns 19, or 23 if in high school), when a spouse's benefits end due to remarriage, or when someone is removed from the record for other reasons.

For example, if your daughter was on your record from your onset date in 2020 until she turned 19 in 2023, she is may have access to to back pay for any months between your onset date and when she actually started receiving benefits — even though she is no longer receiving monthly payments now. She can contact SSA to request this back pay, and it will be calculated and sent to her.

A former family member has no time limit to request back pay they are owed, though the longer they wait, the harder it may be to locate records. If you know a family member is no longer on your record but may be owed back pay, you can contact SSA on their behalf or encourage them to call 1-800-772-1213 to ask about it.

What happens if family members have other income or work

If a family member is working or has other income, it may affect whether they are may have access to to back pay for certain months. The SSA has an earnings limit called the substantial gainful activity (SGA) limit. If a family member earned more than this amount in a given month, they are not may have access to to benefits — and therefore not may have access to to back pay — for that month.

The SGA limit changes each year. In 2024, it is $1,550 per month for non-blind individuals. If your spouse was working and earning $2,000 per month during months when they should have been receiving benefits, SSA will not count those months as back pay owed, because your spouse was not may have access to during those months.

The SSA will review a family member's work history and earnings records when calculating back pay. If there is a question about whether they were working during a particular month, SSA may ask for pay stubs, tax returns, or other proof of earnings. This can delay back pay, so it is helpful to have these records ready if you know a family member was working during the period in question.

Taxes and back pay for auxiliary beneficiaries

Back pay received by family members may be subject to federal income tax, depending on their total income and filing status. The SSA does not automatically withhold taxes from back pay, so a family member may owe taxes on the lump sum they receive.

The SSA will send a Form SSA-1099 to any beneficiary who received $25 or more in benefits during the year. This form reports the total benefits received and is used to determine whether taxes are owed. A family member should keep this form and report the back pay on their tax return, or consult a tax professional if they are unsure whether they owe taxes.

Some family members may be able to spread the back pay across multiple tax years for tax purposes, which can lower their tax burden. This is called income averaging and is available only in certain situations. A tax professional or the SSA can explain whether this option applies.

Frequently Asked Questions

Can my family members get back pay if they were not on my record when I was approved?

Yes. They become may have access to to benefits on your established onset date, even if they are not added to your record until months or years later. Back pay covers the gap between when they became may have access to and when they actually started receiving payments.

What if my spouse was working during the months they are owed back pay?

If your spouse earned more than the substantial gainful activity limit in a given month, they are not may have access to to back pay for that month. SSA will review their earnings records and exclude any months where they were working above the limit.

Does my child's back pay count toward the family maximum?

No. Back pay is calculated separately from the family maximum. The family maximum applies only to ongoing monthly benefits. Each family member receives their full back pay amount regardless of whether the family maximum affects their current monthly payments.

How long does it take to receive back pay after I am approved for SSDI?

Back pay is usually sent within 60 days of approval, though it can take longer if your case is complex or if there are questions about a family member's information. You can contact SSA at 1-800-772-1213 to check the status of back pay.

If my child ages out of benefits, do they lose their back pay?

No. A child who ages out is still may have access to to back pay for the months they were on your record and may have access to to benefits. They can request this back pay from SSA at any time, even after they stop receiving monthly payments.