Medicare Premiums: How Much You'll Pay and What Drives the Cost Up

Your first Medicare bill is a small shock. Your second one, if your income is high enough, can feel like a mugging.

The standard 2026 Part B premium is $202.90 per month, up $17.90 from 2025 [1]. That's the number about 92% of Medicare beneficiaries pay. The other 8% pay more, sometimes dramatically more, because of income-related surcharges that can push the monthly premium above $689 [1].

And here's the part that stings: Medicare premiums are deducted directly from your Social Security check. That 2.8% COLA raise you just got? A meaningful chunk of it went straight to CMS before you saw a dime.

30-Second Summary: Most Medicare beneficiaries pay $202.90/month for Part B in 2026. High earners pay up to $689.90 due to IRMAA surcharges that kick in above $109,000 (single) or $218,000 (joint). Premiums are based on income from two years ago. Part D adds another $34.50/month on average. Together, Medicare costs consume a third or more of the annual Social Security COLA for typical retirees.

What You'll Pay for Each Part

Part A: Hospital Insurance

Most people pay nothing for Part A because they (or their spouse) paid Medicare taxes for 40+ quarters [1].

If you didn't: the 2026 premium is $311/month (30-39 quarters of coverage) or $565/month (fewer than 30 quarters). Plus the inpatient hospital deductible of $1,736 per benefit period [1].

Part B: Medical Insurance

This is the big monthly bill.

The $202.90 standard premium applies if your modified adjusted gross income (MAGI) from 2024 was at or below $109,000 (single) or $218,000 (married filing jointly) [1].

Go over those thresholds? IRMAA kicks in.

Part D: Prescription Drugs

Part D premiums vary by plan, but the national average for a standalone Part D plan in 2026 is about $34.50 per month [2]. The national base beneficiary premium (used for penalty and IRMAA calculations) is $38.99 [2].

Part D also has IRMAA surcharges for high earners, ranging from $14.50 to $91.00 per month on top of your plan premium [1].

The IRMAA Surcharge: Why Income Matters

IRMAA (Income-Related Monthly Adjustment Amount) is a surcharge added to both Part B and Part D premiums for beneficiaries with higher incomes. It uses your MAGI from two years prior, so 2026 premiums are based on your 2024 tax return [3].

Here are the 2026 IRMAA brackets:

These are cliffs, not gradual slopes. Earn $218,001 as a married couple and you both pay the Tier 1 surcharge. Our deep dive on IRMAA and what income determines Medicare premiums covers appeal strategies and planning moves.

Three Retiree Profiles

Profile 1: Standard Income Retiree

Teresa, single filer, 2024 MAGI of $45,000.

Profile 2: Just Over the First IRMAA Cliff

David and Maria, married filing jointly, 2024 MAGI of $220,000. They exceeded the $218,000 threshold by two thousand dollars.

Because they earned $2,000 over the threshold, they pay an extra $2,297 per year as a couple compared to the standard rate. That's an effective tax rate of over 100% on that last $2,000 of income.

Let that sink in. They'd have been better off earning less.

Profile 3: High Earner

James, single filer, 2024 MAGI of $180,000. Falls in the third IRMAA bracket.

James pays $4,620 more per year in surcharges alone compared to Teresa. That's real money, and it comes out of his Social Security check automatically.

Why Did Premiums Jump in 2026?

Part B premiums rose 9.7% in 2026, from $185.00 to $202.90 [1]. CMS attributed much of the increase to projected healthcare spending growth, particularly on "skin substitutes" (wound-care products) whose spending skyrocketed in recent years. CMS took regulatory action expected to reduce spending on skin substitutes by 90%, but without that action, premiums would have been roughly $11/month higher [1].

The Part B premium is recalculated annually based on projected Medicare spending. It's not arbitrary, but it is unpredictable, and it can outpace Social Security COLA adjustments.

The COLA-Premium Squeeze

The Hold Harmless provision prevents your Social Security check from decreasing due to a Part B premium hike [4]. But it doesn't prevent your raise from being absorbed. Here's the math for an average retiree in 2026:

Medicare ate a third of the raise. For retirees with Part D premiums that also increased, or those subject to IRMAA (where Hold Harmless doesn't apply), the net increase was even smaller. The Senior Citizens League estimates that Social Security benefits have lost about 20% of their purchasing power since 2010, in part because healthcare costs consistently outpace the CPI-W measure used for COLA calculations [5].

How to Lower Your Premiums

You can't negotiate Medicare premiums, but you can influence them:

1. Manage income in the two years before Medicare. Since premiums are based on income from two years prior, controlling your MAGI in those years (through Roth conversions done strategically, timing of capital gains, or deferring income) can keep you below IRMAA thresholds.

2. Appeal if your income has dropped. If you've experienced a "Life-Changing Event" (retirement, divorce, death of a spouse, loss of income-producing property beyond your control), file Form SSA-44 to request Medicare use your current income instead of the two-year-old return [3].

3. Shop Part D plans annually. Formularies change every year. The cheapest plan for your specific medications might be different in 2026 than it was in 2025. Use Medicare.gov's Plan Finder during Open Enrollment.

4. Consider Medigap carefully. A Medigap Plan G costs $150-$300/month but eliminates the 20% coinsurance on Part B that has no out-of-pocket cap. For retirees with significant health needs, this can save thousands.

5. Run the numbers with a retirement calculator. Project how withdrawals from different account types (Traditional IRA vs. Roth IRA vs. taxable) affect your MAGI and, by extension, your Medicare costs.

Your Next Move

1. Check your 2024 MAGI. This is what determines your 2026 premiums. If you're near an IRMAA cliff, it may be worth finding a thousand dollars in deductions or deferring income.

2. Budget $3,000 to $8,000 per person per year for Medicare premiums alone, depending on your income tier. Add deductibles and coinsurance for a realistic healthcare budget.

3. Review your Part D plan during Open Enrollment (October 15 through December 7). Even small premium savings compound over years.

4. If you just retired, file Form SSA-44 immediately to request updated income assessment. Don't pay surcharges based on your peak working years.

5. Plan ahead for IRMAA cliffs. A single Roth conversion or property sale two years before Medicare can trigger thousands in extra annual premiums.

References

1. Centers for Medicare & Medicaid Services (CMS). (2025). 2026 Medicare Parts A & B Premiums and Deductibles. CMS.gov. https://www.cms.gov/newsroom/fact-sheets/2026-medicare-parts-b-premiums-deductibles
2. Centers for Medicare & Medicaid Services (CMS). (2025). 2026 Medicare Part D Bid Information and Part D Premium Stabilization Demonstration Parameters. CMS.gov. https://www.cms.gov/newsroom/fact-sheets/2026-medicare-part-d-bid-information-and-part-d-premium-stabilization-demonstration-parameters
3. Social Security Administration (SSA). (2025). Medicare Premiums: Rules for Higher-Income Beneficiaries. SSA.gov. https://www.ssa.gov/benefits/medicare/medicare-premiums.html
4. Congressional Research Service. (2025). Social Security: Cost-of-Living Adjustments (94-803). Congress.gov. https://www.congress.gov/crs-product/94-803
5. The Senior Citizens League. (2024). 2024 Loss of Buying Power Study. SeniorsLeague.org. https://seniorsleague.org/assets/TSCL-LOBP-Report-2024.pdf