The One Big Beautiful Bill Act: Key Tax Changes and What They Mean for You

The One Big Beautiful Bill Act (OBBBA) represents one of the most significant overhauls of the U.S. tax code since the Tax Cuts and Jobs Act of 2017. Passed in 2025, the legislation makes permanent many of the TCJA provisions that were set to expire, introduces new deductions and credits, and reshapes the tax landscape for individuals, families, small businesses, and real estate investors alike.

This article breaks down the most important provisions and what they mean for your tax planning.

The TCJA's reduced individual income tax rates — including the top rate of 37% — are now permanently extended rather than expiring after 2025. Without the OBBBA, rates would have reverted to pre-TCJA levels, with the top rate climbing back to 39.6%.

The seven-bracket structure (10%, 12%, 22%, 24%, 32%, 35%, 37%) remains in place permanently, providing long-term certainty for individual tax planning.

The standard deduction — already nearly doubled by the TCJA — receives an additional temporary boost under the OBBBA:

• Single filers: Increased by $1,000 (to approximately $16,150 for 2025)
• Married filing jointly: Increased by $2,000 (to approximately $32,300 for 2025)
• Head of household: Increased by $1,500

This enhanced amount phases out for higher-income taxpayers and is temporary, scheduled to revert after a few years. The permanent TCJA standard deduction levels remain as the floor.

One of the most widely discussed provisions: tips received by service industry workers are excluded from federal income tax for tax years 2025 through 2028. This applies to cash tips, credit card tips, and other gratuities received in the ordinary course of employment in traditionally tipped occupations.

The exclusion has income limits — it phases out for higher-earning individuals — and does not eliminate the employer's obligation to report tips or the employee's Social Security and Medicare tax obligations on tip income.

Overtime compensation — the additional pay for hours worked beyond 40 per week under the Fair Labor Standards Act — is also excluded from federal income tax for 2025 through 2028. Like the tip exclusion, this phases out at higher income levels and does not affect payroll tax obligations.

The Child Tax Credit is increased to $2,500 per qualifying child (up from $2,000) and made permanent at that level. The refundable portion is also expanded, making the credit more accessible to lower-income families.

The income phase-out thresholds are adjusted upward, allowing more middle-income families to claim the full credit.

The State and Local Tax (SALT) deduction cap — one of the most controversial TCJA provisions — is raised from $10,000 to $40,000 for most taxpayers, with a phase-out beginning at higher income levels. This is a significant benefit for taxpayers in high-tax states like California, New York, and New Jersey, though the cap still limits deductions compared to pre-TCJA law.

The increased cap is temporary and subject to phase-out provisions for high earners.

For taxpayers below certain income thresholds, Social Security benefits are excluded from federal income tax. This provision targets middle-income retirees who have historically faced taxation on a portion of their benefits. The exclusion phases out at higher income levels, so higher-earning retirees may still owe tax on a portion of their benefits.

A new above-the-line deduction for interest paid on loans for American-made vehicles is introduced, up to $10,000 per year. This applies to new vehicle purchases and phases out at higher income levels. The vehicle must be assembled in the United States to qualify.

The 20% deduction for qualified business income (QBI) from pass-through entities — sole proprietorships, partnerships, S corporations, and certain trusts — is permanently extended. This was one of the most valuable TCJA provisions for small business owners, and its permanence provides long-term planning certainty.

The wage and capital limitations, specified service trade or business (SSTB) restrictions, and phase-in rules remain largely intact. Business owners who have structured their operations around the QBI deduction can continue to rely on it indefinitely.

Bonus depreciation is restored to 100% for qualified property placed in service after January 19, 2025. This reverses the phase-down schedule that had reduced bonus depreciation to 60% in 2024 and was heading toward zero by 2027.

This is one of the most impactful provisions for businesses and real estate investors. Combined with a cost segregation study, 100% bonus depreciation allows the immediate expensing of a significant portion of a building's cost in the year it is placed in service.

For real estate investors: This makes cost segregation studies dramatically more valuable again. Components reclassified to 5, 7, or 15-year property can now be fully deducted in year one rather than over their recovery period.

The Section 179 expensing limit is increased to $2.5 million (up from $1.16 million), with the phase-out threshold raised to $3.5 million. This allows small and mid-sized businesses to immediately expense a larger amount of qualifying property rather than depreciating it over time.

The requirement to capitalize and amortize research and development (R&D) expenses over five years — introduced by the TCJA and effective for tax years beginning after 2021 — is repealed. Businesses can once again immediately deduct domestic R&D expenses in the year incurred, restoring the pre-2022 treatment.

This is a significant benefit for technology companies, manufacturers, and any business that invests in product development or process improvement.

The limitation on the deduction for business interest expense under Section 163(j) is modified. The OBBBA restores the more favorable EBITDA-based calculation (earnings before interest, taxes, depreciation, and amortization) rather than the EBIT-based calculation that took effect in 2022. This allows businesses to deduct more interest expense, particularly capital-intensive businesses with significant depreciation.

The deduction for startup costs is increased from $5,000 to $50,000 for new businesses, with the phase-out threshold raised accordingly. This is a meaningful benefit for entrepreneurs launching new ventures, allowing them to immediately deduct a much larger portion of their pre-opening costs.

The federal estate and gift tax exemption — which was $13.61 million per individual in 2024 under the TCJA — is permanently extended at the elevated level (adjusted for inflation going forward). The feared "sunset cliff" at the end of 2025, which would have cut the exemption roughly in half to approximately $7 million, does not occur.

This is one of the most significant planning developments for high-net-worth families. The urgency to make large gifts before the end of 2025 is eliminated, though proactive estate planning remains important.

The portability election — allowing a surviving spouse to use the deceased spouse's unused exemption — remains available and must still be elected on a timely filed Form 706.

• Revisit withholding: The tip and overtime exclusions, enhanced standard deduction, and SALT cap increase may affect your optimal withholding level. Review your W-4 to avoid over- or under-withholding.
• Roth conversion strategy: With rates permanently extended at current levels, the calculus on Roth conversions remains similar to recent years. Model conversions against your projected future income.
• SALT planning: If you are in a high-tax state and previously itemized, the raised SALT cap may make itemizing worthwhile again. Run the numbers with a CPA.
• Social Security planning: If you are approaching retirement, the partial exclusion of Social Security benefits may affect your optimal claiming age and income management strategy.

• QBI deduction is permanent: If you have been structuring your business to maximize the 199A deduction, that strategy remains valid indefinitely.
• Bonus depreciation is back at 100%: If you have been deferring equipment purchases or property improvements waiting for bonus depreciation to recover, now is the time to act.
• Cost segregation studies: With 100% bonus depreciation restored, cost segregation studies are back to their maximum effectiveness. A study on a property placed in service in 2025 or later can generate a full first-year deduction on reclassified components.
• R&D expenses: If your business has been capitalizing R&D costs under the post-2021 rules, consult your CPA about the transition back to immediate expensing.

• 100% bonus depreciation + cost segregation: This combination is now fully restored. A cost segregation study on a newly acquired or constructed property can generate enormous first-year deductions.
• Estate planning: The permanent exemption eliminates the 2025 deadline pressure, but does not eliminate the value of proactive planning — particularly for business succession, family limited partnerships, and trust structures.

• Estate exemption is permanent: The urgency to complete large gifts before year-end 2025 is gone. However, gifting strategies remain valuable for removing future appreciation from the estate.
• SALT cap increase: The $40,000 cap may restore the value of itemizing for taxpayers in high-tax states with significant state income and property tax obligations.

Not everything in the tax code was affected by the OBBBA. Key provisions that remain unchanged include:

• Long-term capital gains rates (0%, 15%, 20%) and the 3.8% Net Investment Income Tax
• Retirement account contribution limits (subject to annual inflation adjustments)
• Self-employment tax rates (15.3% on net self-employment income)
• Passive activity rules for rental real estate
• Foreign tax credit and GILTI rules for international taxpayers

The OBBBA is a lengthy and complex piece of legislation. The provisions summarized here represent the major highlights, but there are dozens of additional changes, phase-outs, effective dates, and technical rules that may affect your specific situation. Some provisions are temporary; others are permanent. Some phase out at income thresholds that vary by provision.

The best way to understand how the OBBBA affects you is to work through it with a CPA or Enrolled Agent who can model the impact on your specific tax situation.

At Autarky Tax and Accounting, our team stays current on every major piece of tax legislation and translates it into actionable planning for our clients. Whether you are an individual, a small business owner, a real estate investor, or a high-net-worth family, we can help you understand what changed and how to respond. Our small business tax services and individual tax services are built around proactive planning — not just annual filing.

Contact us to schedule a consultation and review how the OBBBA affects your tax plan.