Grab a cold drink and let’s talk tax law. We know it’s not the most exciting topic, but the 2025 Tax Reconciliation Act brings some big changes—especially for small business owners like you. Whether you’re running a solo operation, managing a small team under an LLC, or part of a growing S-Corp or partnership, there are updates worth knowing. Some bring opportunities, others require caution. Let’s break them down clearly.
This blog outlines the most significant tax changes affecting small and medium-sized businesses in a straightforward, non-technical manner. We’ll explore new deductions, expensing rules, tax credits, and potential challenges, so you can plan smartly, stay ahead, and take charge of your financial future.
1. QBI Deduction: Now Permanent, and Bigger
What Changed?
The Qualified Business Income (QBI) deduction is now permanent and increased from 20% to 23% for pass-through entities.
Thresholds:
Phases out at $182,100 (single filers) and $364,200 (joint filers) for service-based businesses.
Who Benefits?
- Sole proprietors and single-member LLCs
- Partners and S-Corp owners
- Service-based businesses under IRS income limits
Tip: Consider reviewing your business structure with a financial advisor.
2. 100% Bonus Depreciation Made Permanent
What Changed?
You can now fully deduct qualifying business purchases in the year they are placed in service.
Who Benefits?
- Businesses investing in equipment, tools, vehicles, or tech
- Construction, landscaping, healthcare, and logistics sectors
Includes both new and used assets used in business operations.
3. Section 179 Expensing: Bigger Limits, More Flexibility
2025 Limits:
- Deduction limit: $2.5 million
- Phase-out after $4 million in total purchases
- Will be adjusted for inflation in 2026
Choose which assets to expense for more control over deductions. Section 179 can be used alongside bonus depreciation.
Ideal for: Retailers, trades, tech firms, or businesses buying fewer, high-cost assets.
4. R&D Expensing: Immediate and Permanent
What Changed?
Domestic R&D costs can now be deducted immediately, no amortization required.
Who Benefits?
- Tech startups
- Engineering firms
- Product developers and manufacturers
Note: Only applies to domestic R&D expenses.
5. Qualified Small Business Stock (QSBS): Bigger Incentives
What Changed?
Shorter holding periods, larger gain caps, and eligibility for larger businesses.
Who Benefits? C-Corps looking to attract investment. (LLCs and S-Corps not eligible.)
6. Standard Deduction Increase
2025 Estimates:
- Single: ~$15,000
- Married filing jointly: ~$30,000
This increases take-home income by reducing taxable income for those who don’t itemize.
7. Retroactive R&D Deductions
Eligible to amend past returns if you had domestic R&D expenses previously amortized. This may result in refunds or reduced taxes owed.
8. SALT Deduction Cap Temporarily Raised
The SALT deduction cap is now $40,000 (temporarily). The SALT cap reverts to $10,000 after 2029. Especially helpful for business owners in high-tax states like NY, CA, or NJ. Watch for future expiration.
How Worksite Can Help
At Worksite, we guide small business owners through the evolving tax landscape created by the 2025 Act. Whether you’re adjusting payroll rules, exploring credits, or updating recordkeeping, we help you stay compliant and maximize benefits:
- Payroll & Deductions Support: Our system reflects updated QBI rules and bonus depreciation automatically.
- Credit Identification: We help you track and claim credits like WOTC and healthcare incentives.
- Compliance & Recordkeeping: IRS-ready documentation, including 1099 support and virtual currency tracking.
- Financial Services Network: We connect you to pros who can help with retroactive filings, entity structuring, and long-term planning.
With Worksite, you can focus on running your business while we handle the tax fine print.



