---
kind: "section"
citation: "5 C.F.R. § 843.503"
title: "5"
number: "843.503"
heading: "Commencing and terminating dates."
url: "https://uscodex.org/cfr/5/843.503"
---

# §843.503. Commencing and terminating dates.

- (a) **An annuity under this subpart commences on the day after the retiree dies.**
- (b) An annuity under this subpart terminates on the last day of the month before the insurable interest beneficiary dies.
- (c) A survivor annuity accrues on a daily basis, one-thirtieth of the monthly rate constituting the daily rate. An annuity does not accrue for the 31st day of any month, except in the initial month if the survivor's (of a deceased employee) annuity commences on the 31st day. For accrual purposes, the last day of a 28-day month constitutes 3 days and the last day of a 29-day month constitutes 2 days.

## Notes

### Authority

Authority: 5 U.S.C. 8461; 843.205, 843.208, and 843.209 also issued under 5 U.S.C. 8424; 843.309 also issued under 5 U.S.C. 8442; 843.406 also issued under 5 U.S.C. 8441.

### Source

Source: 52 FR 2074, Jan. 16, 1987, unless otherwise noted.