Understanding the One Big Beautiful Bill Act: A Business Owner’s Guide to 2025 Tax Law Updates

Staying informed on new federal legislation is essential for effective small business tax planning. The One Big Beautiful Bill Act introduces sweeping business tax changes that build on the 2017 Tax Cuts and Jobs Act. These updates affect how companies invest, deduct expenses, and plan for future growth. Here’s a breakdown of the most important 2025 tax law updates to help you navigate what’s ahead.

Key Deductions and Expensing Updates

Bonus Depreciation Permanently Reinstated: One of the most impactful bonus depreciation rules returns—businesses can again fully expense 100% of qualified capital assets purchased on or after January 20, 2025. This includes manufacturing buildings placed in service before 2031, making long‑term investment more attractive.

R&D Expensing Restored: Domestic research expenses are once again fully deductible. Companies can also accelerate the recovery of 2022–2024 capitalized R&D costs, though foreign research must still be amortized.

QBI Deduction Expanded: The popular QBI deduction—allowing eligible pass‑through businesses to deduct 20% of qualified business income—is now permanent. Higher phase‑in thresholds ($75,000 for single filers and $150,000 for joint filers) expand access for many small businesses.

Corporate and Individual Tax Considerations

Charitable Deduction Floors: New rules introduce a 1% floor for corporate charitable giving and a 0.5% AGI floor for itemizing individuals.

Meal Deduction Limits Coming in 2026: Employer‑provided on‑site meals will face tighter deduction limits beginning in 2026, with narrow exceptions for certain fishing‑related companies.

Permanent Repeal of Moving Expense Exclusions: Moving expenses remain non‑excludable from income except for active‑duty military personnel.

Real Estate and Investment Reforms

REIT Subsidiary Ownership Cap Increase: Beginning in 2026, taxable REIT subsidiary holdings can increase from 20% to 25%.

Qualified Small Business Stock (QSB) Improvements: New tiered gain exclusion schedules apply, the per‑issuer cap rises to $15 million, and the gross assets threshold increases to $75 million for QSB stock issued after July 4, 2025.

Opportunity Zone (OZ) Enhancements: Expect updated definitions, new rural OZ incentives, tighter reporting rules, and rolling 10‑year designations beginning in 2027.

Compliance, Credits, and Additional Key Changes

ERTC Enforcement Expansion: The IRS gains greater authority and a longer statute of limitations to review questionable Employee Retention Tax Credit claims.

Disaster Loss Relief Made Permanent: TCJA casualty loss rules are now permanent, and losses from state‑declared disasters are newly eligible.

New Excise Tax on Remittances: A 1% excise tax now applies to certain cash-based transfers abroad—though bank and card‑network transfers remain exempt.

Energy Credit Phase-Outs: Several clean energy credits, including the Clean Electricity Production and Investment Credits, are being reduced or eliminated.

Final Thoughts

The One Big Beautiful Bill Act introduces significant business tax changes, but with proactive planning, your company can stay compliant and uncover new opportunities. Now is an ideal time to meet with a tax professional to ensure your strategy aligns with the latest rules and maximizes every available benefit.