2026 Catch Up Contribution Calculator

Background.

This 2026 catch up contribution page is built to cap a planned 2026 workplace-plan contribution using compensation, regular limit and age-based catch-up. Catch-up contributions add elective-deferral room for eligible participants and sit outside the annual-additions cap in this model. The implemented convention is “allowed contribution = min(compensation, planned contribution, annual limit + catch-up).”

The editable entries are eligible compensation, planned contribution, 2026 base annual limit, applicable catch-up limit. Use values from the document or measurement that governs this 2026 catch up contribution question; the defaults are only the worked fixture below. The special ages sixty through sixty-three amount and mandatory Roth treatment can depend on age, wages and plan operation. If that 2026 catch up contribution condition is not true, choose a calculation that models the missing convention.

IRS Retirement Topics, 401(k) and profit-sharing contribution limits, updated for 2026 documents the convention or governing rule used here. The 2026 catch up contribution output is a transparent scenario under those facts: it does not manufacture an unentered market price, professional determination, carrier quote, legal eligibility finding or locally adopted code value.

What is 2026 catch up contribution calculator?

2026 Catch Up Contribution is the relationship behind this decision: catch-up contributions add elective-deferral room for eligible participants and sit outside the annual-additions cap in this model. On this page it means allowed contribution = min(compensation, planned contribution, annual limit + catch-up). The special ages sixty through sixty-three amount and mandatory Roth treatment can depend on age, wages and plan operation; that is the line between the reported quantity and a broader retirement analysis.

How to use this calculator.

1. 01Confirm that “allowed contribution = min(compensation, planned contribution, annual limit + catch-up)” matches the 2026 catch up contribution convention you need.
2. 02Replace the fixture values for eligible compensation, planned contribution, 2026 base annual limit, applicable catch-up limit with dated values from the governing record.
3. 03Keep all currencies, measurement units and time periods on the same basis before calculating.
4. 04Read allowed contribution together with this boundary: The special ages sixty through sixty-three amount and mandatory Roth treatment can depend on age, wages and plan operation.

The formula.

The calculation uses allowed contribution = min(compensation, planned contribution, annual limit + catch-up). In this 2026 catch up contribution model, the entered terms are eligible compensation, planned contribution, 2026 base annual limit, applicable catch-up limit. Catch-up contributions add elective-deferral room for eligible participants and sit outside the annual-additions cap in this model, which is why the relationship is presented under this name rather than as a universal alternative. The special ages sixty through sixty-three amount and mandatory Roth treatment can depend on age, wages and plan operation. Calculations keep full decimal precision through the relationship and round only the returned display values.

A worked example.

Frequently asked questions.

References& sources.

1. [1]IRS Retirement Topics, 401(k) and profit-sharing contribution limits, updated for 2026. Retrieved 2026-08-07. access: open unless marked otherwise.
2. [2]IRS Notice 2025-67, 2026 retirement-plan and IRA limitations. Retrieved 2026-08-07. access: open unless marked otherwise.
3. [3]U.S. Internal Revenue Service. Retirement topics — catch-up contributions. Retrieved 2026-08-07. independence: primary; access: open.