Most people who receive Social Security benefits know the annual raise is coming at some point in the fall. Fewer know exactly when, or that the date can shift. Even fewer realize the same week that raise gets announced is also when a separate, unrelated deadline opens for Medicare coverage changes.
The fall of 2025 piled more onto the Social Security calendar than most years. A government shutdown delayed the inflation data the annual payment increase is built on. A federal order ended paper checks for every recipient in the country. Medicare’s annual enrollment window opened on schedule, and anyone who missed it had to wait a full year to revisit their plan.
The COLA Announcement That Almost Didn’t Happen on Time
Every October, the Social Security Administration announces its Cost-of-Living Adjustment for the following year. The COLA is calculated using September’s Consumer Price Index data, released by the Bureau of Labor Statistics. The 2026 figure was set to be revealed once that September data landed on October 15.
Then the federal government shut down. Bureau of Labor Statistics employees were furloughed, the inflation data was pushed to October 24, and the COLA announcement moved with it. On October 24, 2025, the Social Security Administration announced that a 2.8% Social Security COLA would be payable starting in January 2026. Increased payments to nearly 7.5 million SSI recipients began on December 31, 2025.
That 2.8 percent figure matters more than it sounds in isolation, because it runs directly into Medicare Part B premiums, which most recipients have deducted straight from their monthly checks. The standard Part B monthly premium for 2026 is $202.90, an increase of $17.90 from the 2025 amount of $185.00. For a retired worker, the 2025 COLA raised the estimated average monthly benefit amount received in January 2026 by $56, from $2,015 to $2,071.
In plain terms: the raise outpaced the premium hike, so the average recipient’s take-home benefit actually went up. But that math only applies to people who stayed enrolled in a plan that still worked for them, which brings us to the other deadline that opened on October 15.
Medicare Open Enrollment: The Window You Can’t Reopen
Open enrollment runs from October 15 through December 7 and is the window each year when Medicare beneficiaries can make changes to their coverage. The changes take effect January 1 of the following year, as long as the plan receives the enrollment request by December 7.
That window is one of the most misunderstood features of the entire Medicare system. Most people assume their coverage auto-renews and carries on as before. Sometimes it does. But plans change their networks, premiums, and formularies, the list of covered drugs, every year, and what worked in 2025 might cost significantly more or cover less in 2026.
Some insurers offering Medicare Advantage plans or stand-alone Part D plans exited the market or reduced their plan offerings for 2026, as was the case for 2025, making it especially important for beneficiaries to open and read the materials their plans sent in the fall. If a plan’s benefits or premium are changing in a way that won’t fit your needs, or if the plan is being eliminated altogether, the time to comparison shop for alternatives is during the October 15 to December 7 open enrollment period.
The Annual Notice of Change that plans send each fall is worth actually reading. It tells you exactly what’s shifting in your plan, premiums, covered drugs, in-network providers, before the window closes. Average premiums for stand-alone Part D drug plans decreased from $38.31 per month in 2025 to $34.50 per month in 2026, a genuine piece of good news buried in a stack of paperwork most people never open. Comparison shopping during this window is the only way to know whether a switch saves you money or costs you more.
One action that’s concrete and free: visit Medicare.gov before December 7 to review available plans in your area and compare your options before the enrollment window closes.
The End of Paper Checks
The change that caught the most people off guard in October 2025 had nothing to do with the COLA or Medicare. The Social Security Administration moved to discontinue paper checks following a Trump administration order that mandated all federal payments transition to electronic transfers, direct deposit to bank accounts or transfers to debit cards.
The 2026 COLA, which averages $56 per month, is more than enough to cover the increase in Part B premiums, which is less than $18 per month for most enrollees. But returning to the paper check transition: according to SSA data, over 500,000 recipients, about 0.8 percent of all beneficiaries, were still receiving paper checks and needed to make the switch. That sounds like a small percentage, but more than half a million people is not a small number, and many of them were among the most financially vulnerable recipients in the system: older adults without banking relationships, people in rural areas, and recipients who had simply never had a reason to change.
The options for switching were straightforward: set up direct deposit through the My Social Security online platform at SSA.gov, call the SSA directly, or visit a local SSA office in person. SSI recipients needing help setting up a new payment method were advised to call 1-800-772-1213. For people without bank accounts, the Direct Express debit card, a government-issued card that receives federal benefit payments, was available as an alternative.
Electronic payment isn’t just a mandate, it’s faster and safer. A check lost in the mail takes weeks to trace and reissue. A direct deposit shows up on schedule regardless of weather, mail delays, or holidays.
The Odd October SSI Double Payment
One more thing happened in October 2025 that alarmed more than a few SSI recipients when they checked their bank statements: two payments arrived instead of one.
The SSA ordinarily disburses Supplemental Security Income payments on the first of each month. SSI provides monthly payments to eligible older adults who have little or no income, as well as to disabled individuals. When the first of the month falls on a weekend or federal holiday, SSI payments are made on the last business day of the preceding month.
Due to the way the 2025 calendar fell, Fox Business reported that two SSI payments went out in October: one on October 1 for October’s benefits, and a second on October 31 for November’s benefits, because November 1 fell on a weekend. It was not a mistake. It was not a bonus. The October 31 payment was simply November’s check arriving early. Spending both in October would mean a gap in November, which is exactly what the SSA’s notices tried to explain, though, predictably, not everyone read them.
People who claimed Social Security before May 1997 and those who receive both Social Security and SSI benefits were on a slightly different schedule. They received their Social Security payment on the third of the month in October, November, and December, as usual. Only the SSI payment came twice in October.
Read More: Claiming Social Security Early Due to Fear of Program Funds Going Dry is a “Bad Plan”
What All of This Actually Adds Up To
The Social Security October deadline isn’t one thing. It’s a cluster of things that happen to collide in the same four-to-six-week window every year, and in 2025, the collision was harder than usual. A government shutdown delayed the COLA announcement by nine days. A federal mandate ended paper checks for hundreds of thousands of recipients. Medicare open enrollment opened on October 15 with plan changes that could cost or save enrollees hundreds of dollars. And SSI recipients received two payments in the same month, one of which belonged to November.
The Social Security system does not remind you loudly enough when something requires action. The COLA gets announced, but the Medicare enrollment window gets far less fanfare, and the plan comparison options that could save you $400 a year go largely unused. The paper check transition notices went out, but the people who most needed to act were often the least equipped to get it done.
Treat October the way you’d treat the annual review period at work: a fixed moment to check what’s changing, what it means for your specific situation, and whether anything needs updating before January.
Disclaimer: This information is not intended to be a substitute for professional medical advice, diagnosis, or treatment and is for information only. Always seek the advice of your physician or another qualified health provider with any questions about your medical condition and/or current medication. Do not disregard professional medical advice or delay seeking advice or treatment because of something you have read here.
AI Disclaimer: This article was created with the assistance of AI tools and reviewed by a human editor.