High-Earning Owners Making 2026 Catch-Up Contributions Need the Roth Payroll Check

The 2026 rule changes the tax character of certain catch-ups

Beginning in 2026, affected higher-earning participants must make catch-up contributions on a Roth basis under the applicable rules. The IRS identifies a $150,000 prior-year wage threshold for 2026: the relevant wages are from the employer sponsoring the plan, not simply total household income. Catch-up eligibility, the plan’s features, and applicable implementation rules still matter. This requirement concerns catch-up contributions, not an automatic conversion of every regular elective deferral to Roth.

For 2026, the IRS lists an ordinary catch-up limit of $8,000 and a higher $11,250 limit for participants turning sixty, sixty-one, sixty-two, or sixty-three during the year in the applicable plans. Confirm the plan and participant facts before using those figures. An owner should not assume a contribution illustration prepared under prior-year payroll settings implements the required Roth treatment correctly.

A hypothetical owner payroll decision

Assume an eligible owner employee had $190,000 of relevant 2025 wages from the plan sponsor and expects to make 2026 catch-up deferrals. The prior-year wages exceed the stated $150,000 threshold. The administrator and payroll provider should apply the required Roth catch-up treatment under the applicable rules, rather than process those catch-up dollars as pre-tax merely because regular deferrals remain pre-tax by election.

Suppose the owner plans $8,000 of catch-up funding in addition to otherwise permitted regular deferrals. The $8,000 Roth amount does not produce the same current income-tax reduction as an $8,000 pre-tax catch-up. Update the household projection accordingly. This example does not compute the owner’s tax rate or total permitted contributions; it identifies a change in tax character that can make an old deduction estimate inaccurate.

Now suppose another owner had $100,000 of relevant sponsor wages but substantial pass-through income. Do not use the larger total income alone to conclude the same mandatory Roth rule applies. The wage-based test needs the actual statutory and plan facts. Self-employment income, multiple employers, related businesses, and payroll changes can require additional analysis rather than a simple household-income comparison.

Ask for the specific data used by the administrator

Provide the prior-year payroll records, current age, employer identity, plan participation, and existing deferrals. Ask the administrator to identify the relevant wage measure and any aggregation or transition issues. The ordinary W-2 box the owner recalls may not by itself answer every rule. Keep the provider’s conclusion with the contribution instructions so the bookkeeper can explain why a particular payroll code is used.

Confirm that the plan and recordkeeper can receive the required Roth contribution category and that payroll distinguishes it from regular pre-tax and regular Roth deferrals. A generic retirement deduction code can obscure the catch-up treatment. Test a payroll preview and the corresponding account posting before relying on a full year of automatic processing. The owner should be able to see the category on the funding reconciliation.

Resolve existing processing errors promptly

If catch-up amounts were processed under old settings, give the administrator the actual pay periods, amounts, and posting records. Ask for the applicable correction procedure and reporting rather than moving money between categories informally. The payroll ledger, plan account, and tax reporting need a supported coordinated result. Preserve the original records and correction evidence.

Review the household projection after the final contribution plan is confirmed. The owner may still choose among available regular deferral options, but a mandatory catch-up rule should not be presented as a discretionary tax-saving election. Identify which amounts remain projected and which have actually been processed.

Retain a year-specific instruction file

Keep the dated wage determination from the plan administrator, age and eligibility review, administrator instructions, payroll preview, deposit confirmations, and final posting schedule. Recheck thresholds and plan rules for later years instead of carrying the 2026 figures forward automatically. This guide does not determine every owner’s catch-up eligibility. It gives higher-earning owners a concrete 2026 implementation check that connects the legal rule, payroll coding, retirement account, and personal tax forecast.

If the owner changes payroll providers, include the catch-up determination and category mapping in the handoff. The incoming provider needs more than year-to-date total deferrals to continue the supported treatment without resetting the owner’s contribution assumptions.