Every fall, retirees ask the same question: will the Medicare Part B premium increase swallow my Social Security raise? A special rule called the hold harmless provision is the reason the answer is usually “no.” Here is how it works heading into 2027.
1. What the Hold Harmless Provision Is
According to the Social Security Administration, the hold harmless provision protects your Social Security payment from shrinking because of a Part B premium increase. It limits your premium increase to the dollar amount of your cost-of-living adjustment (COLA).
2. Where the 2027 Numbers Stand
- The 2026 standard Part B premium is $202.90 a month, per Medicare.gov.
- The 2026 Medicare Trustees Report projects $209.50 for 2027, an increase of $6.60. The official figure is not final until CMS announces it, typically in November.
- The 2027 COLA is expected to be announced on October 14, 2026, alongside the September inflation data. Published estimates currently sit around 3.5% to 3.6%, but these are estimates, not official numbers.
3. Who Is Protected
SSA says you generally qualify if you receive (or are entitled to) Social Security benefits in November and December, and your Part B premiums for December and January are deducted from your monthly benefit.
4. Who Is Not Protected
- People enrolling in Part B for the first time that year
- People who pay an income-related monthly adjustment amount (IRMAA)
- People whose Part B premium is paid by a state Medicaid agency
- People who are billed directly for Part B instead of having it deducted from their benefit
5. A Worked Example: When the Rule Actually Matters
For most people the COLA is bigger than the premium increase, so the rule never kicks in. It only matters when your COLA in dollars is smaller than the premium increase. These figures are illustrative, not official:
| Monthly benefit | COLA at 3.5% | Premium increase ($6.60) | Result |
|---|---|---|---|
| $2,000 | $70.00 | $6.60 | Full increase paid; net raise $63.40 |
| $1,000 | $35.00 | $6.60 | Full increase paid; net raise $28.40 |
| $150 | $5.25 | $6.60 | Premium increase capped at $5.25 |
With a 3.5% COLA and a $6.60 increase, the break-even benefit is roughly $189 a month, so very few 2027 beneficiaries would be capped. The rule mattered far more in 2026, when the premium rose $17.90 against a 2.8% COLA.
6. What to Do Before January
- Watch for the COLA announcement on October 14 and the Part B premium announcement in November.
- Check your Social Security notice in December for your new benefit and premium.
- If you pay a higher premium because of IRMAA and your income dropped, ask SSA about a reduction.
- If Part B strains your budget, see whether a Medicare Savings Program could pay it for you.
FAQ
Does hold harmless cover Part D or Medicare Advantage premiums?
The provision described by SSA applies to the Part B premium. Check your plan documents for other premiums.
Can my Social Security check go down in 2027?
If you qualify for hold harmless, the Part B increase cannot push your benefit below where it was. Other deductions, such as IRMAA or a Part D surcharge, are separate.
This article is general information, not personal financial advice. Confirm your situation with SSA.