Tax Planning

How the ‘One, Big, Beautiful Bill’ Changes Retirement Savings and Fringe Benefits

Discover how 2026’s major tax law revamp impacts standard deductions, 401(k) limits, parking benefits, and more—and how you can use these changes to your advantage.

By NomadicTax Research Team • 5-8 min read • April 16, 2026

## What’s New in 2026 The U.S. tax code has seen sweeping changes under the One, Big, Beautiful Bill (Public Law 119-21), signed on July 4, 2025. Many of the new provisions are already affecting taxpayers filing their 2025 returns in 2026. ([irs.gov](https://www.irs.gov/newsroom/irs-releases-tax-inflation-adjustments-for-tax-year-2026-including-amendments-from-the-one-big-beautiful-bill?utm_source=openai)) ### Key Adjustments - **Standard Deduction** increased to **$16,100** for singles and married filing separately; **$32,200** for joint filers in tax year 2026. ([irs.gov](https://www.irs.gov/newsroom/irs-releases-tax-inflation-adjustments-for-tax-year-2026-including-amendments-from-the-one-big-beautiful-bill?utm_source=openai)) - **401(k) contribution(limit)** raised to **$24,500** for 2026 (from $23,500 in 2025). ([eitc.irs.gov](https://www.eitc.irs.gov/newsroom/topics-in-the-news?utm_source=openai)) - **Qualified Transportation Fringe & Parking Benefits** limit increased to **$340/month**, up $15. ([eitc.irs.gov](https://www.eitc.irs.gov/newsroom/topics-in-the-news?utm_source=openai)) - **Alternative Minimum Tax (AMT)** exemption amounts for single and joint filers increased. ([irs.gov](https://www.irs.gov/newsroom/irs-releases-tax-inflation-adjustments-for-tax-year-2026-including-amendments-from-the-one-big-beautiful-bill?utm_source=openai)) ## Strategic Moves for Taxpayers ### Max out retirement contributions early. Higher limits mean more opportunity to reduce taxable income. If you're close to 50, consider catch-up contributions where allowed. ### Leverage employer-provided benefits. Transportation and parking expansions are useful, especially for commuters; ask your employer about adopting or expanding pre-tax fringe benefit programs. ### Plan for AMT exposure. If your income places you near old phaseout thresholds, the higher exemptions may reduce or eliminate AMT liability—but planning is still required. If you're unsure, model both AMT and regular tax sides for 2025. ### Stay current with new deductions. Some deductions added under OBBB—like for tips, overtime, or car loan interest—are effective retroactive to 2025. Ensure your withholdings or estimates account for these changes. ([irs.gov](https://www.irs.gov/newsroom/prepare-to-file-in-2026-get-ready-for-tax-season-with-key-updates-essential-tips?utm_source=openai)) ## Example Jane Doe, single taxpayer, earned $200,000 in 2025. Under 2025 rules with old standard deduction ($15,750), her taxable income was calculated accordingly. In 2026, with the deduction at $16,100 and higher fringe-benefit thresholds, she shifts more commuting costs into pre-tax fringe programs and contributes more to her 401(k), reducing her taxable income significantly while gaining fringe benefit value. ## Action Items - Confirm your employer has updated fringe-benefit and transportation allowance policies to align with new limits. - Use IRS’s withholding estimator to adjust W-4, considering new deductions. - If self-employed, make contributions to SEP/SIMPLE or traditional IRA up to new limits to lower AGI. **Bold takeaway**: The changes are not just nominal—they alter behaviors around filing status, retirement planning, fringe benefits, and AMT. Engaging proactively can yield meaningful tax savings. --- ## Related Policies You may want to read up on the IRS inflation adjustments for 2026 and the enhanced deduction for seniors under OBBB to fully grasp the scope of the shifts. ([irs.gov](https://www.irs.gov/newsroom/irs-releases-tax-inflation-adjustments-for-tax-year-2026-including-amendments-from-the-one-big-beautiful-bill?utm_source=openai))