September Social Security payments are moving out on a set schedule this month, and more than 70 million Americans are tracking exactly when their deposit lands. The Social Security Administration has confirmed five separate payment dates in September 2026, and the date that applies depends on the benefit type and, for most retirees, the day of the month they were born.
Here is a clear breakdown of every September date, plus the latest on the 2027 cost-of-living adjustment forecast that beneficiaries are watching closely right now.
September 2026 Payment Dates at a Glance
The Social Security Administration splits payments across five dates this month. Each date corresponds to a specific group of beneficiaries.
| Payment Date | Who Gets Paid |
|---|---|
| Tuesday, Sept. 1 | Supplemental Security Income (SSI) recipients |
| Thursday, Sept. 3 | Beneficiaries who receive both SSI and Social Security, plus those who started receiving Social Security before May 1997 |
| Wednesday, Sept. 9 | Social Security beneficiaries born on the 1st–10th of the month |
| Wednesday, Sept. 16 | Social Security beneficiaries born on the 11th–20th of the month |
| Wednesday, Sept. 23 | Social Security beneficiaries born on the 21st–31st of the month |
SSI Payments Arrive First, on September 1
Supplemental Security Income payments generally go out on the first of the month. September 1 falls on a Tuesday this year, and it is not a federal holiday, so there is no early shift like beneficiaries sometimes see when the first lands on a weekend.
SSI serves roughly 7.4 million low-income seniors, along with people who are blind or living with a disability. The average SSI payment runs close to $740 a month, though individual amounts vary based on income, resources, and living situation.
The September 3 Group Covers Two Different Categories
Thursday, September 3 applies to two distinct groups of beneficiaries. The first includes anyone who receives both SSI and a Social Security retirement, disability, or survivor benefit. For these dual recipients, SSI lands on September 1, and the separate Social Security payment follows on September 3 — that is not a duplicate deposit, but two distinct programs paying out on their own calendars.
The second group covers people who started collecting Social Security before May 1997. This older cohort was never moved onto the birthday-based schedule that applies to newer beneficiaries, so they keep receiving payments on the third of each month.
Birthday-Based Payments Fall on Three Wednesdays
Most Social Security retirement, disability, and survivor beneficiaries who filed after April 1997 are paid according to their birth date. This group makes up the bulk of the more than 70 million people receiving benefits nationwide.
The birthday-based schedule breaks down as follows:
- Birthdays 1st–10th: Paid Wednesday, September 9
- Birthdays 11th–20th: Paid Wednesday, September 16
- Birthdays 21st–31st: Paid Wednesday, September 23
The SSA schedule marks when a payment is issued, not necessarily when it shows up in an account. Banks and credit unions can take a bit of extra time to post funds, so a deposit occasionally appears a day after the official date.
Why September Matters Beyond the Calendar
September carries extra weight this year because it plays a direct role in setting next year’s benefit increase. The Bureau of Labor Statistics releases inflation data for July, August, and September, and the Social Security Administration averages those three months of Consumer Price Index figures to calculate the 2027 cost-of-living adjustment, known as COLA.
The August inflation report is scheduled for release on September 11, 2026. That report will narrow the range of COLA estimates ahead of the September data, which arrives October 14 and completes the calculation.
2027 COLA Estimates Are Trending Higher Than 2026
Beneficiaries received a 2.8% COLA for 2026. Early forecasts for 2027 point to a larger increase, though estimates have shifted as new inflation data has come in throughout the summer.
The July CPI-W reading, the first of the three months used in the calculation, showed prices up 3.4% year-over-year. Based on that figure, several organizations have released updated projections:
- The Senior Citizens League: Currently estimates a 3.6% COLA, down from an earlier 3.8% forecast, after inflation moderated slightly in July
- AARP: Projects a 3.5% increase, based on CPI-W data through July combined with Cleveland Federal Reserve inflation projections for August and September
- Independent analyst Mary Johnson: Estimates 3.4%, revised down from a 3.7% forecast the month before
If the final number lands anywhere in this range, it would mark the largest COLA since 2023, when benefits rose 8.7%. The Senior Citizens League notes that a 3.6% adjustment would raise the average retiree benefit from $1,937.53 to roughly $2,007.28, an increase of about $70 a month.
None of these figures are official yet. The Social Security Administration will not confirm the actual 2027 COLA until mid-October, once the September CPI-W data is finalized.
Medicare Premiums Could Offset Some of the Gain
A larger COLA does not always translate into a proportionally larger check. Medicare Part B premiums are typically deducted directly from Social Security payments, and early projections suggest those premiums could climb by roughly 3.5% in 2027, pushing the standard monthly premium toward $209.50.
Retirees watching their 2027 benefit increase should factor in this premium adjustment when estimating their actual take-home payment. Medicare’s official premium announcement typically comes in the fall, closer to when the SSA confirms the COLA itself.
How Payment Dates Work Throughout the Rest of 2026
The September schedule fits into a broader pattern that has applied all year. Under this system, birthday-based payments always fall on the second, third, or fourth Wednesday of the month:
- July: 8th, 15th, 22nd
- August: 12th, 19th, 26th
- September: 9th, 16th, 23rd
- October: 14th, 21st, 28th
- November: 10th, 18th, 25th
This structure has remained consistent, so beneficiaries can generally predict their October and November payment dates using the same birthday rule that applies in September.
What Beneficiaries Should Watch For Next
Two dates stand out for the remainder of September. The first is September 11, when the Bureau of Labor Statistics releases August inflation data and analysts update their COLA projections again. The second is the payment cycle itself, since anyone unsure which group they fall into can check their My Social Security account for a personalized payment date.
Beneficiaries who have not received an expected payment within a few business days of the scheduled date are encouraged to contact the Social Security Administration directly rather than assume a delay will resolve on its own.
What are your thoughts on this year’s payment schedule and the upcoming COLA numbers? Drop a comment below and share how the changes might affect your budget.