Tax Planning
How U.S. Taxpayers Should Update Withholding in Light of the One, Big, Beautiful Bill Changes
Major changes under the One, Big, Beautiful Bill (OBBBA) will affect your deductions, credits and withholding for tax years 2025 and 2026—here’s what to do.
By NomadicTax Research Team • 5-8 min read • November 19, 2025
## What’s Changed Under OBBB for Tax Deductions & Withholding
The One, Big, Beautiful Bill (Public Law 119-21), enacted July 4, 2025, introduced several new or enhanced deductions beginning in the 2025 tax year: **qualified tips**, **qualified overtime compensation**, **qualified interest on certain vehicle loans**, and an extra deduction for **seniors**, alongside increases in **standard deduction** and **child tax credit**. ([irs.gov](https://www.irs.gov/newsroom/one-big-beautiful-bill-provisions?utm_source=openai))
Because these deductions can dramatically alter your tax liability, it’s crucial to update your federal tax withholding now. IRS guidance states that employees wishing to account for these deductions should submit a revised 2025 Form W-4—specifically using *Step 4(b) – Deductions*—and that the IRS Tax Withholding Estimator hasn’t yet incorporated most of the OBBB deductions but **does include** the updated standard deduction and child tax credit amounts. ([irs.gov](https://www.irs.gov/forms-pubs/how-to-update-withholding-to-account-for-tax-law-changes-for-2025?utm_source=openai))
## How to Update Your Withholding: Step-by-Step
1. **Collect documentation** of your tip income, overtime pay, or car loan interest expected for 2025. Even estimates help.
2. Fill out the **2025 W-4**, particularly **Step 4(b)** (Deductions Worksheet): calculate the total deductions you expect (beyond standard deduction) to reduce your withholding.
3. Submit the revised W-4 to your employer. Once submitted, your employer will adjust your withholding for future paychecks.
4. Check your results with the IRS withholding estimator—use it for standard deduction/child tax credit updates. For the new deductions (tips, overtime, etc.), manually add them in Step 4(b).
5. Revisit your withholding at the beginning of 2026 to make sure it’s still accurate—especially because your income or expenses may change.
## Practical Examples
- **Tips-based income**: Lisa, a server in a restaurant, expects to receive $20,000 in qualified tips during 2025. She also earns $60,000 in salary. She submits a W-4 estimating her deductions for tips (up to the $25,000 cap for her income level) in Step 4(b), reducing her income subject to withholding accordingly.
- **Overtime deduction**: Mike, a warehouse worker, works overtime and expects an extra $8,000 beyond his standard pay. He includes this as a qualified overtime deduction to lower his current tax withholding.
## What to Watch Out For & Common Mistakes
- **Filing status matters**: Married taxpayers must file jointly to claim these new OBBB deductions (tips, overtime, etc.). Filing separately disqualifies you for those deductions. ([eitc.irs.gov](https://www.eitc.irs.gov/newsroom/one-big-beautiful-bill-provisions?utm_source=openai))
- **Reporting requirements**: Employers/payors will in many cases need to provide statements showing cash tips, occupation codes, or overtime paid. The IRS has said that for tax year 2025, penalty relief will be available for failing to provide them correctly or at all, so long as the employer files a complete and correct return overall. ([irs.gov](https://www.irs.gov/newsroom/treasury-irs-provide-penalty-relief-for-tax-year-2025-for-information-reporting-on-tips-and-overtime-under-the-one-big-beautiful-bill?utm_source=openai))
- **Phase-out & income caps**: These deductions are limited by your modified adjusted gross income (MAGI). Be sure to understand where you fall relative to those thresholds.
- **Cap limits**: E.g., tip deduction maxes at $25,000; overtime at $12,500 ($25,000 if married filing jointly). Don’t overestimate.
## Key Takeaways
- Submit a new 2025 W-4 to include OBBB deductions so you’re not under-withheld.
- Estimate carefully; keep an eye out for updated guidance or information statements from your employer.
- Use the withholding estimator for standard deductions and child tax credit; manually incorporate other deductions through the W-4 worksheet.
- Monitor income and circumstances—don’t assume deductions will stay constant.
Updating your withholding now helps avoid a surprise tax bill when you file—or a loss of cash flow due to over-withholding. The changes under OBBB can benefit taxpayers, but only if you adjust proactively.