Your COLA Raise vs the Rising Medicare Premium

Most SSDI recipients see their January deposit grow by less than the cost-of-living adjustment announced in the news, because the Medicare Part B premium is taken out of the check before the money ever reaches the bank. For 2026, the COLA is 2.8 percent while the standard Part B premium climbed from $185.00 to $202.90 a month, a jump of $17.90.

The good news is that a federal rule called hold harmless stops most people from losing ground. This article walks through what actually lands in your account in January, why the numbers rarely match the headline COLA, and who is not protected.

How the COLA Reaches Your Check

SSA announced the 2026 COLA on October 24, 2025, based on the rise in the Consumer Price Index for Urban Wage Earners and Clerical Workers (CPI-W) from the third quarter of 2024 through the third quarter of 2025, according to SSA's 2026 COLA fact sheet. The 2.8 percent adjustment applies to benefits for December 2025, which are paid in January 2026.

On average, a disabled worker's benefit was $1,586 a month before the 2026 COLA and about $1,630 after it, SSA's fact sheet shows. That is a gross raise of roughly $44 a month for the average recipient, before anything is deducted.

SSA mails a COLA notice in December showing your new gross benefit amount, your new Medicare premium deduction, and your new net payment. The same notice is available in December inside your personal my Social Security account, so you can see the January numbers before they arrive.

The Premium Comes Out First

Most SSDI recipients join Medicare Part B after the 24-month Medicare waiting period, and SSA deducts the Part B premium from the monthly benefit before issuing the deposit. You never see that money pass through your account.

For 2026, the standard Part B premium is $202.90 a month, up $17.90 from $185.00 in 2025, according to the Centers for Medicare and Medicaid Services 2026 premium fact sheet published in November 2025. The annual Part B deductible also rose to $283 in 2026 from $257 in 2025, though the deductible is paid at the doctor's office, not withheld from your check.

If you also pay a Part D drug plan premium or an income-related surcharge out of your Social Security payment, those come out of the same check. Every deduction shrinks the visible piece of your COLA.

The Math on an Average 2026 Check

Here is what the January 2026 change looks like for a disabled worker receiving exactly the average benefit, using SSA's COLA fact sheet and CMS's 2026 premium figures:

• Gross benefit: $1,586 in 2025 becomes $1,630 in 2026, a raise of about $44.
• Part B premium: $185.00 in 2025 becomes $202.90 in 2026, an increase of $17.90.
• Net deposit: $1,401.00 in 2025 becomes $1,427.10 in 2026, an increase of about $26.

The raise you actually feel is around $26, not $44. That gap, about 40 percent of the announced increase, is exactly what confuses people in January. The pattern repeats whenever the premium rises faster than the COLA, as it did for 2026.

The Hold Harmless Rule Protects Most People

A provision written into the Social Security Act protects the net check itself. Under Section 1839(f) of the Social Security Act (42 U.S.C. 1395r(f)), the Part B premium increase for most beneficiaries cannot exceed the dollar amount of their Social Security raise for that year. SSA and the Congressional Research Service estimate this hold harmless rule covers about 70 percent of Medicare beneficiaries.

The rule works quietly. Suppose your benefit is $600 a month. A 2.8 percent COLA adds $16.80, but the standard premium increase is $17.90. In that situation, the law caps your premium increase at $16.80, so your net check stays flat instead of falling by $1.10. People with very small benefits can therefore end up paying slightly less than the standard premium.

Hold harmless only promises that Part B will not shrink your check below last year's net amount. It does not guarantee you keep the whole COLA, and it does nothing about rising food, rent, or utility costs.

Who Is Not Held Harmless

Roughly three in ten Medicare enrollees sit outside the hold harmless rule and pay the full premium increase, whatever the COLA happens to be. The main groups are:

• People paying an income-related monthly adjustment amount (IRMAA). If your modified adjusted gross income on your 2024 tax return exceeded $109,000 as a single filer or $218,000 as a joint filer, your 2026 Part B premium starts at $284.10 and can reach $689.90 at the top bracket, per CMS's 2026 fact sheet. CMS says these surcharges affect roughly 8 percent of Part B enrollees.
• People who are new to Medicare in 2026 and did not pay a 2025 premium, so there is no prior check to protect.
• People whose Part B premium is not deducted from a Social Security check at all, including those billed directly by Medicare and those whose premium is paid by a state Medicaid program or a Medicare Savings Program.

For these groups, a big premium jump like the 2026 increase really can reduce the money available for everything else, so the December notice is worth reading closely.

If Your Income Dropped, Ask SSA to Lower the Surcharge

The IRMAA brackets look back two years, so your 2026 premium reflects your 2024 income. That hurts people whose circumstances have changed since, including disability claimants who stopped working.

SSA lets you request a reduction for life-changing events, and a work stoppage or reduction in work hours counts. You file the request through SSA's Request to Lower IRMAA page using form SSA-44, with evidence of the event and your reduced income. If SSA agrees, the reduction can apply back to the months you were charged the higher amount.

Help Paying the Premium Exists

If the Part B premium is a strain, two programs can absorb it. Medicare Savings Programs run through state Medicaid and can pay the Part B premium for people with limited income and resources. Separately, the Part D Extra Help program lowers drug costs for people with income up to $23,940 a year as an individual in 2026, with a resource limit of $18,090, according to SSA's Extra Help limits.

Neither program is automatic. You apply through your state Medicaid agency or SSA, and approval depends on your income, resources, and state rules.

Frequently Asked Questions

Will the Medicare premium increase lower my SSDI check in 2026? For most people, no. The hold harmless provision in Section 1839(f) of the Social Security Act (42 U.S.C. 1395r(f)) caps the Part B increase at your COLA dollar amount, so the net check does not drop, though the raise can be small.

Why did my January 2026 payment grow by less than 2.8 percent? The standard Part B premium rose from $185.00 in 2025 to $202.90 in 2026, and SSA withholds it before your deposit posts. On the average disabled worker benefit of $1,630, roughly $26 of the $44 gross raise remains.

Does hold harmless apply to the income-related Medicare surcharge? No. Beneficiaries paying an IRMAA, people new to Part B in 2026, and people whose premium is not deducted from Social Security pay the full increase, up to $689.90 a month in 2026 at the highest bracket.

This article is general information about Social Security and Medicare rules, not legal advice. Premiums, COLA figures, and program limits change every year. For advice about your own situation, consult a qualified representative or contact SSA directly.