---
kind: "section"
citation: "20 C.F.R. § 418.1125"
title: "20"
number: "418.1125"
heading: "How will the income-related monthly adjustment amount affect your total Medicare Part B premium?"
url: "https://uscodex.org/cfr/20/418.1125"
---

# §418.1125. How will the income-related monthly adjustment amount affect your total Medicare Part B premium?

- (a) If you must pay an income-related monthly adjustment amount, your total Medicare Part B premium will be the sum of:
  - (1) The Medicare Part B standard monthly premium, determined using the rules in [42 CFR 408.20](/cfr/42/408.20.md); plus
  - (2) Any applicable increase in the Medicare Part B standard monthly premium as described in [42 CFR 408.22](/cfr/42/408.22.md); plus
  - (3) **Your income-related monthly adjustment amount.**
- (b) The nonstandard Medicare Part B premium amount described in [42 CFR 408.20](/cfr/42/408.20.md) does not apply to individuals who must pay an income-related monthly adjustment amount. Such individuals must pay the full Medicare Part B standard monthly premium plus any applicable penalties for late enrollment or reenrollment plus the income-related adjustment.

## Notes

### Amendments

[71 FR 62931, Oct. 27, 2006, as amended at 78 FR 57260, Sept. 18, 2013]

### Authority

Authority: Secs. 702(a)(5) and 1839(i) of the Social Security Act (42 U.S.C. 902(a)(5) and 1395r(i)).

### Source

Source: 71 FR 62931, Oct. 27, 2006, unless otherwise noted.

### Source

Source: 70 FR 77675, Dec. 30, 2005, unless otherwise noted.

### Amendments

[71 FR 62931, Oct. 27, 2006, as amended at 78 FR 57260, Sept. 18, 2013]