2018 Medicare Part B premium — $134.00
Standard monthly Part B premium, 2018
$134.00
Unchanged from 2017. The annual deductible was $183.
- Standard premium
- $134.00per month
- Annual deductible
- $183
- Change on 2017
- none
- Highest tier
- $428.605 income brackets
What it did to a Social Security payment
The Part B premium is withheld from the Social Security payment, so it lands in the same January as the cost-of-living adjustment and the two move against each other. A $2,000 monthly benefit in 2017 became $2,040 gross with the 2.0% adjustment — a rise of +$40. After the premium went from $134.00 to $134.00, the payment rose +$40, an effective 2.14%.
| 2017 | 2018 | |
|---|---|---|
| Gross monthly benefit | $2,000 | $2,040 |
| Part B premium | $134.00 | $134.00 |
| Net payment | $1,866 | $1,906 |
The full ledger for a $2,000 benefit at current rates carries the annual figures and the percentile context.
The 2018 income-related tiers
Anyone whose modified adjusted gross income on the 2016 tax return crossed the first threshold paid more than the standard premium. The adjustment is a flat dollar amount per tier, not a percentage of income, and it steps at the bracket boundary rather than phasing in.
| Single | Married filing jointly | Adjustment | Total Part B |
|---|---|---|---|
| Up to $85,000 | Up to $170,000 | none | $134.00 |
| $85,001 to $107,000 | $170,001 to $214,000 | $53.50 | $187.50 |
| $107,001 to $133,500 | $214,001 to $267,000 | $133.90 | $267.90 |
| $133,501 to $160,000 | $267,001 to $320,000 | $214.30 | $348.30 |
| $160,001 and above | $320,001 and above | $294.60 | $428.60 |
The 2018 brackets in detail, including the reconstruction check — every tier is verified against the statutory multipliers as well as against the notice.
Related
- Every year22 premium years
- IRMAA bracketsall committed years
- Hold harmlessthe premium cap
- The 2018 COLA2.0%
- Offset calculatoryour amount
- The net raisethe study
Sources and freshness
- Federal Register — Medicare Program; Medicare Part B Monthly Actuarial Rates, Premium Rates, and Annual Deductible Beginning January 1, 2018 — verified 10 August 2026
- SSA POMS HI 01101.020 — Income-related monthly adjustment amount — verified 10 August 2026
Every year page draws on that year’s own Federal Register notice, retrieved from govinfo rather than from cms.gov.
Figures effective 1 January 2018. Page figures last verified against the sources above on 10 August 2026. Corrections: the correction log · support@inventum.com.au