Federal Publication 15-T · OBBBA 📖 6 min read

IRS Pub 15-T 2026: How the One Big Beautiful Bill Act Rewrites Your Federal Withholding Tables

The 2026 Publication 15-T incorporates OBBBA guidance for qualified tip and overtime withholding. Both pre-2020 and 2020+ W-4 table sets are updated. Employees must submit a revised W-4 to benefit mid-year.

einTime Editorial Team

Payroll Compliance Analysts

March 18, 2026Published

6 min readRead time

FederalCategory

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⚡ Key Takeaways for Payroll Professionals

Qualified tips and qualified overtime now have specific withholding guidance in the 2026 Pub 15-T.
Both table sets are updated — the pre-2020 W-4 (allowances) and 2020+ W-4 tables both incorporate OBBBA provisions.
Employees must submit a revised 2026 W-4 to benefit from reduced withholding throughout the year on OBBBA deductions.
Nonresident alien add-to-wages amounts have been updated for the 2026 tax year.
The IRS withholding estimator was only partially updated at publication — verify it is fully current before advising employees.

What Is Publication 15-T?

Publication 15-T, Federal Income Tax Withholding Methods, is the authoritative IRS reference employers use to calculate how much federal income tax to withhold from employee paychecks. It contains both the percentage method and wage bracket method withholding tables, guidance for nonresident alien employees, and supplemental wage calculation rules. The 2026 edition was updated to account for the One Big Beautiful Bill Act (OBBBA; Pub. L. 119-21), enacted in July 2025.

OBBBA Changes Reflected in 2026 Pub 15-T

📋 OBBBA-Driven Changes in 2026 Publication 15-T

IRS Pub 15-T (Released Dec 2025)

Change	Description	Withholding Impact	Status
Qualified tips withholding guidance	New instructions for excluding eligible tip income when employee claims deduction on W-4	Reduced withholding on qualifying tip amounts	New 2026
Qualified overtime withholding guidance	New tables and instructions for excluding qualifying overtime from withholding	Reduced withholding on qualifying overtime	New 2026
Updated bracket thresholds	Inflation-adjusted marginal rate brackets (all thresholds shifted upward ~2.8%)	Slightly lower withholding at same income levels	↑ Updated
Standard deduction amounts	Increased standard deductions reduce tentative withholding in percentage method calculations	Lower withholding for most employees	↑ Updated
NRA add-to-wages amounts	Updated amounts added to NRA wages before applying bracket tables	Affects NRA employee withholding	↑ Updated

ℹ️

How Employees Activate OBBBA Withholding Reductions

Employees who want to benefit from OBBBA deductions during the year through reduced withholding — rather than claiming the exclusion only at year-end — must submit a revised 2026 Form W-4 using the new Step 4(b) deductions worksheet. Without a revised W-4, the employer applies standard withholding tables and the employee receives the tax benefit only when filing their return.

Two W-4 Table Sets: Pre-2020 and 2020+

🗂 W-4 Version Impact — 2026 Pub 15-T

Pub 15-T Sections 1 & 2

W-4 Version on File	Withholding Method	2026 Update	Employee Action Needed?
2020–2026 W-4	Percentage Method (Steps 1–4)	Updated — OBBBA deductions apply if claimed on revised W-4	None (resubmit to claim OBBBA)
Pre-2020 W-4 (Allowances)	Wage Bracket or legacy Percentage	Updated via legacy withholding tables	None required
No W-4 on file	Default: Single, standard deduction only	Treated as Single — no OBBBA reductions applied	Encourage submission

Nonresident Alien Employees

Publication 15-T includes updated add-to-wages amounts for nonresident alien employees. These amounts are added to actual wages before applying the withholding bracket tables. Employers with NRA employees must update their payroll system’s NRA calculation parameters to use the 2026 add-to-wages values from the updated publication.

IRS Withholding Estimator Status

⚠️

Estimator Only Partially Updated at Time of Publication

As of December 12, 2025, the IRS Tax Withholding Estimator had been updated for the increased standard deduction and child tax credit, but had not yet been updated for the OBBBA deductions for qualified tips and qualified overtime. Employees using the estimator to plan their 2026 W-4 should verify whether these updates have since been applied before relying on the results.

Action Checklist

Required · Now

Download 2026 Pub 15-T and update payroll system withholding tables

Replace all prior-year Publication 15-T tables in your payroll system. Verify your software vendor has pushed the 2026 update including OBBBA-driven withholding guidance.

Required

Train payroll staff on qualified tip and overtime withholding calculations

Staff processing payroll for tipped employees or employees with significant overtime must understand how the new OBBBA withholding instructions interact with the updated Pub 15-T tables.

Best Practice

Encourage eligible employees to submit a revised 2026 W-4

Employees in tipped occupations or with qualifying overtime can reduce their throughout-the-year withholding by submitting a revised 2026 W-4 claiming OBBBA deductions in Step 4(b). Without the revised W-4, they will only see the benefit at year-end filing.

If Applicable

Update NRA add-to-wages amounts for nonresident alien employees

Review the 2026 Pub 15-T NRA tables and update your payroll system's NRA withholding configuration for all nonresident alien employees on your payroll.

📎 Source & Attribution

"IRS Releases 2026 Publication 15-T, Includes OBBBA Information"

Source: payroll.org · Published: December 12, 2025 · View original article ↗

This article draws on publicly available regulatory and industry news. Content has been independently researched, rewritten, and contextualized by einTime's editorial team for payroll compliance education purposes. einTime is not affiliated with the original publishing organization. Always verify compliance requirements with the applicable regulatory authority or a qualified tax advisor before taking action.

Topics

Publication 15-T OBBBA Withholding W-4 Qualified Tips Qualified Overtime

einTime Editorial Team

Payroll Compliance Analysts · einTime Resource Center

The einTime editorial team monitors federal, state, and local payroll compliance developments continuously, translating regulatory changes into practical guidance for payroll professionals at staffing firms, enterprises, and back-office operations.