Social Security’s inspector general estimates that about 287,738 Supplemental Security Income (SSI) back payments, worth about $863 million, went out without the required second-employee review. The estimate comes from an August 28, 2026 audit of SSI underpayments, report 062407, sent to Commissioner Frank Bisignano. The Social Security Administration (SSA) agreed with all three of the audit’s recommendations.
SSI is the monthly payment for people with disabilities and older adults who have little or no income or resources. A back payment, which the audit calls an underpayment, is money SSA owed for a past period when no payment was made or the payment was too low. The finding is about a missing check on those payments, not a confirmed wrong amount in every case.
Auditors pulled a sample of 100 from about 2.4 million underpayments paid between July 31, 2021 and July 31, 2024. In 88 cases the payment was correct and any required review was done. In 12 cases, or 12 percent, a review was required and the audit found no evidence one happened. Those 12 payments added up to $43,729. The inspector general projected the result across the full group at a 90 percent confidence level.
That puts the question squarely on people who were approved for SSI after a long wait, or whose payment was corrected after the fact, and on the families who helped them. Anyone who received a large lump sum in the past few years has reason to compare the amount to the notice that came with it. A lump sum that looks short is worth a call to SSA.
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How the second-employee review is supposed to work
SSA’s rule is that an underpayment of $15,000 or more needs a pre-payment review, a second-party check by a different employee. The threshold was $5,000 before March 16, 2024, according to the audit. Many of the payments in the audited period fell under the old, lower line.
Large back payments also come out in pieces. Retroactive underpayments of three times the federal benefit rate or more are paid in up to three installments, six months apart. SSA says the maximum monthly SSI payment for 2026 is $994 for an individual and $1,491 for a couple. Three times $994 is $2,982, so a back payment above that amount can arrive in installments.
SSA also offsets certain debts before it pays. The audit lists overpayments, interim assistance reimbursements and authorized representative fees as amounts taken out of an underpayment before it is issued.
Why reviews were skipped
The audit points to a manual step. Technicians must add a case to the SSI Underpayment Control Log for the review to happen, and a case that is never logged is never reviewed. SSA subject-matter experts told auditors that limited system notifications make it hard to track underpayments outside the automated installment process.
One example in the report is a recipient approved in June 2020 who was owed $12,822, paid in three installments. The audit found no documented pre-payment review. The report does not say the amount was wrong. It says the check that should have been recorded was not.
Money that never got paid at all
The audit looked at the opposite problem too. Of about 2.5 million underpayments pending as of September 2024, auditors sampled 160 and found that 69, or 43 percent, were not paid as required, totaling $36,971. Projected across the whole group, that is about 1.1 million unpaid underpayments worth about $291 million.
Many sat on records for years. In 80 sampled cases involving deceased recipients, 47 underpayments totaling $22,861 were not payable to anyone and stayed on the books for an average of 22 years. One living recipient was underpaid $1,549 and the money was still unpaid in December 2025, even after two later applications.
The inspector general also estimates about 120,000 erroneous underpayments totaling $23.7 million that were never removed from records. Another 803,000 unpayable entries on deceased records total about $222.4 million. The audit notes that SSA has said it will not dedicate resources to clearing those, and that the inspector general’s 2019 audit found $540 million in similar entries.
What SSA agreed to do
The audit makes three recommendations. First, SSA should act on the 139 underpayments the auditors identified. Second, it should decide whether and how to find and resolve the estimated 1.1 million outstanding underpayments. Third, it should identify what drives employee errors and fix them so that erroneous underpayments are removed and required reviews are documented.
SSA agreed to all three. The memo requires a corrective action plan for each recommendation within 60 days, which falls at the end of October. SSA has not yet published that plan.
If a back payment looks wrong or never came
Survivors have a clock. The audit says underpayments for a deceased recipient can go to eligible survivors, and non-spouse survivors must request them within 24 months of the month of death.
For any payment that looks short or late, SSA’s phone line is 1-800-772-1213, TTY 1-800-325-0778. The agency’s contact page lists calling, writing and finding a local office, and its benefit account page links to the my Social Security sign-in. SSA’s beneficiary booklet also gives the same number for a late or missing payment.
A decision SSA will not change can be appealed. SSA’s appeals page says the usual deadline for asking the Appeals Council to review a hearing decision is 60 days from receiving it, and that a late request must explain why. Anyone who gets a notice on a back payment should keep it, along with bank statements showing when each installment landed.
Matching a lump sum to the notice
The inspector general’s number is a projection, and SSA has not said how many individual payments will be re-reviewed. What is firm is the process gap, the rule behind it, and SSA’s agreement to fix it.
For a household that received a large SSI back payment since mid-2021, the practical question is simple. Does the amount that arrived, and the number of installments, match what the notice said was owed?
Back payment short, late or split into pieces?
A back payment that arrives short, late or in installments is easy to misjudge when the notice is dense and the deposit is split. People who miss the gap can wait months before anyone at SSA looks again.
The Social Security Check Protection Kit lays out when Social Security money lands and what to do the day a payment is off. Inside is a first-24-hours plan for a late or missing payment, plus the 2026 payment calendar so each deposit can be matched to a date.
Get the late-payment plan and 2026 payment calendar checklist for a short SSI back payment →
More Financial Reading
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This article was produced with AI assistance and edited for accuracy against the sources linked above.
David M. Keller is a finance writer based in Columbus, Ohio, covering personal finance and consumer-focused economic topics. He earned his degree in journalism from Ohio University and began his career reporting on local business and economic trends for a regional media outlet. Since then, he has contributed to a variety of online publications, focusing on clear, practical coverage of topics such as cost of living, debt, and everyday financial decision-making.
