---
kind: "section"
citation: "20 C.F.R. § 418.1101"
title: "20"
number: "418.1101"
heading: "What is the income-related monthly adjustment amount?"
url: "https://uscodex.org/cfr/20/418.1101"
---

# §418.1101. What is the income-related monthly adjustment amount?

- (a) The income-related monthly adjustment amount is an amount that you will pay in addition to the Medicare Part B standard monthly premium plus any applicable increase in that premium as described in [42 CFR 408.22](/cfr/42/408.22.md) for your Medicare Part B coverage when your modified adjusted gross income is above the threshold described in [§ 418.1105](/cfr/20/418.1105.md).
- (b) Your income-related monthly adjustment amount is based on your applicable modified adjusted gross income as described in [§ 418.1115](/cfr/20/418.1115.md) and your tax filing status.
- (c) We will determine your income-related monthly adjustment amount using the method described in [§ 418.1120](/cfr/20/418.1120.md).

## Notes

### Amendments

[71 FR 62931, Oct. 27, 2006, as amended at 78 FR 57259, 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 57259, Sept. 18, 2013]