Understanding Key Inflation Adjustments for 2026
The IRS released Revenue Procedure 2025-45 to implement inflation-adjusted figures for major tax provisions effective for the 2026 tax year under the One, Big, Beautiful Bill (OBBBA).(irs.gov) Highlights include:
| Item | 2025 (current) | 2026 (adjusted) |
|---|---|---|
| Standard Deduction—for single (and married filing separately) | $14,600 | $15,750(irs.gov) |
| For heads of households | $22,300 | $23,625(irs.gov) |
| For married filing jointly | $29,200 | $31,500(irs.gov) |
| §179 expensing limit | $1,160,000 | $2,500,000(irs.gov) |
| Child Tax Credit maximum | $2,000 (prior) | $2,200(irs.gov) |
Implications for Tax Planning
- Itemize only if you exceed higher standard deductions: For married couples, the jump to $31,500 means fewer people will benefit from itemizing unless they have large mortgage interest, high state and local taxes, or major medical expenses.
- Leverage expensing early: Businesses investing in qualifying property will benefit more under §179. Place assets in service in 2025 and beyond to maximize deductions.
- Maximize refundable portion of Child Tax Credit: Under the new law, up to $5,120 of the Child Tax Credit is refundable in 2026.(irs.gov)
Examples of Actionable Strategies
- Individuals close to filing thresholds: An unmarried filer with $15,000 in mortgage interest and $10,000 in state/local taxes would have itemized under previous standard-deduction levels but now may find the $15,750 deduction safer and simpler.
- Small business owners planning major equipment purchases: If you're buying a vehicle or machinery later in 2025, accelerating the purchase into the current year could allow you to deduct more under §179 before revenue procedure limits adjust.
- Families eyeing daycare, adoption, or education: With the increased maximums for the adoption credit and expanded refundable credits, it pays to evaluate eligibility and claim in the right year.(irs.gov)
When These Adjustments Take Effect & Exceptions
- The adjusted amounts under Revenue Procedure 2025-45 apply to taxable years beginning January 1, 2026.(irs.gov)
- Exceptions: If further legislation amends the Code after October 9, 2025, some provisions may change. Also, some inflation-adjusted items are subject to phase-outs based on income levels. Always consult updated IRS guidance before filing.
Checklist Before Year-End
- Estimate your taxable income and itemizable deductions considering the new higher standard deduction.
- Plan purchases of business property before year-end to maximize §179 expensing.
- Review eligibility for refundable credits (Child Tax, Adoption, etc.) under updated thresholds.
- Confirm any impact on foreign income/gains or trusts if you are non-US based or non-resident.
By understanding these inflation adjustments—standard deductions, rate brackets, and expensing rules—you can craft a tax strategy to minimize liability and simplify compliance.