# Mortality Tables for Determining Present Value Under Defined Benefit Pension Plans
> **IRS** · Final regulations. · Published 2023-10-20 · Effective 2023-10-20 · 88 FR 72357
## Document
- **Document number:** 2023-23267
- **Category:** other
- **Sub-agency:** IRS
- **Federal Register citation:** 88 FR 72357
- **CFR reference:** 26 CFR 1
- **Publication date:** 2023-10-20
- **Effective date:** 2023-10-20
- **Treasury docket:** TD 9983
## Abstract

This document sets forth final regulations prescribing mortality tables to be used for most defined benefit pension plans. The tables specify the probability of survival year-by-year for an individual based on age, gender, and other factors. The tables are used (together with other actuarial assumptions) to calculate the present value of a stream of expected future benefit payments for purposes of determining the minimum funding requirements for the plan. These mortality tables are also relevant for determining the minimum required amount of a lump-sum distribution from such a plan. These regulations affect participants in, beneficiaries of, employers maintaining, and administrators of certain defined benefit pension plans.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2023/10/20/2023-23267/mortality-tables-for-determining-present-value-under-defined-benefit-pension-plans)
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