5 CFR § 1620.21 - Contributions.

---
identifier: "/us/cfr/t5/s1620.21"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "5 CFR § 1620.21 - Contributions."
title_number: 5
title_name: "Administrative Personnel"
section_number: "1620.21"
section_name: "Contributions."
chapter_name: "FEDERAL RETIREMENT THRIFT INVESTMENT BOARD"
part_number: "1620"
part_name: "EXPANDED AND CONTINUING ELIGIBILITY"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "5 U.S.C. 8474(b)(5) and (c)(1)."
regulatory_source: "64 FR 31057, June 9, 1999, unless otherwise noted."
cfr_part: "1620"
---


# 1620.21 Contributions.

(a) An individual covered under this subpart can make contributions to the TSP from basic pay in the amount described at 5 CFR 1600.22(a)(1). Unless stated otherwise in this subpart, he or she is covered by the same rules that apply to a CSRS participant in the TSP.

(b) The following amounts are not basic pay and no TSP contributions can be made from them:

(1) An annuity or salary received by a justice or judge of the United States (as defined in 28 U.S.C. 451) who is retired under 28 U.S.C. 371(a) or (b), or 372(a);

(2) Amounts received by a bankruptcy judge or a United States magistrate judge under a judges' annuity described at 28 U.S.C. 377;

(3) An annuity or salary received by a judge of the United States Court of Federal Claims under 28 U.S.C. 178; and

(4) Retired pay received by a judge of the United States Court of Veterans Appeals under 38 U.S.C. 7296.

[64 FR 31057, June 9, 1999, as amended at 70 FR 32213, June 1, 2005]