Every 2026 Tax Change That Matters (and When It Hits You)

Reviewed by the WAYG tax team · Updated July 2026

TL;DR — the short version

• 2026 is the year most of the 2025 tax law (the One Big Beautiful Bill Act) actually shows up in your numbers: a $40,400 SALT cap, a permanent QBI deduction with wider phase-ins, permanent 100% bonus depreciation, a $15 million estate exclusion, new charitable floors, and a redesigned W-2.
• Some changes are gifts (higher standard deduction: $16,100 single / $32,200 joint for 2026); some are quiet takebacks (employer meal deductions generally drop to 0%, excess-business-loss thresholds fall to roughly $256,000 / $512,000, and most home energy and EV credits are already gone).
• Two dates deserve a circle on the calendar: July 6, 2026 — generally the last day for eligible small businesses to elect retroactive R&D expensing for 2022–2024 — and December 31, 2026, when a year of payroll data (tips, overtime) locks in what employees can deduct.
• Skim the table below, find the rows tagged for you (🏢 business / 🏠 household), and read just those sections. That's what it's for.

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You run a business, or a household, or — like most of our clients — both at once. Nobody hands you a map for a year like this one, where a single 2025 law rewired dozens of provisions with start dates scattered across four years. So here's the map. Find yourself on it; skip everything that isn't yours.

What changed, and when does each piece hit you?

Tags: 🏢 = business owners · 🏠 = households · 🏢🏠 = both. Figures are for the tax year shown and are indexed or scheduled to change in later years unless noted.

One table, twenty rows, four years of law. Every figure above carries its tax year on purpose — when a number moves annually, the year is the difference between right and wrong.

What should business owners do differently in 2026?

First, the urgent one. If your company capitalized domestic research or software-development costs for 2022–2024 under the old §174 rule, and your average gross receipts are under roughly $31 million, you generally have until July 6, 2026 to elect retroactive expensing and claim refunds for those years (per IRS Rev. Proc. 2025-28). The election window generally closes July 6, 2026 — if it might apply to you and nobody has run the numbers, act immediately; this is genuinely a use-it-or-lose-it window. (Editor note: rewrite this paragraph in past tense after July 6.)

Then, the structural ones. With 100% bonus depreciation permanent and §179 at $2,560,000 for 2026, equipment timing is no longer a race against a phase-down — which means the smarter question is which year needs the deduction, not "how fast can we place it in service." Pair that with the QBI deduction now permanent (and phase-in ranges widened for 2026), and pass-through owners near the $201,750/$403,500 thresholds have real planning room: retirement contributions, entity compensation, and asset elections all interact here.

Finally, the quiet takebacks. Employer meal deductions generally fell to 0% in January — if your books still code the cafeteria and breakroom at 50%, your projections are off. And the excess-business-loss thresholds dropped to roughly $256,000/$512,000 for 2026, so owners expecting a large loss year should model the limitation before December, not discover it in March 2027.

What changed for your household in 2026?

For most families, the headline is stability with a raise: same seven bracket rates, higher bracket edges, and a 2026 standard deduction of $16,100 (single) / $24,150 (head of household) / $32,200 (joint).

The bigger swings live in the details:

• SALT: At $40,400 for 2026, itemizing is suddenly worth re-checking if you pay meaningful state and local or property taxes — but the benefit phases back toward $10,000 above roughly $505,000 of income, and the whole thing is scheduled to snap back to $10,000 in 2030. High earners near the phase-down range should treat income timing as a SALT lever.
• Charitable giving grew a floor. Itemizers now generally lose the first 0.5% of AGI in gifts (at $300,000 AGI, that's the first $1,500). Bunching gifts into alternating years — or using a donor-advised fund — matters more than it did in 2025. Non-itemizers finally get something: up to $1,000/$2,000 for cash gifts.
• Retirement got two changes, one sneaky. Limits rose (401(k) $24,500; IRA $7,500 for 2026). But if you earned over $150,000 in FICA wages from your employer in 2025, your 2026 catch-up contributions generally must be Roth — that's after-tax money now in exchange for tax-free growth later. Check your payroll election; many plans defaulted people over quietly.
• Health coverage: if you're on a Marketplace bronze or catastrophic plan, you're generally HSA-eligible for the first time starting 2026 — up to $4,400/$8,750 of deductible contributions this year that simply weren't available to you before.
• Estate plans: with the exclusion at $15 million per person for 2026 and no sunset scheduled, documents drafted to beat the old 2026 cliff deserve a calm re-read — some of that complexity may no longer serve you.

What already disappeared that people still ask about?

Three things, and we'd rather you hear it in July than in April:

1. EV credits ended for vehicles acquired after September 30, 2025.
2. Home energy credits — the §25C improvement credit and §25D residential solar credit — generally ended after December 31, 2025. A solar install completed in 2026 generally gets no federal credit, no matter what a sales flyer implies.
3. The $600 1099-K panic is over: the threshold is back to $20,000 and 200+ transactions. (Remember: less paperwork doesn't change what's taxable — income is income with or without a form.)

Which dates matter for the rest of 2026?

• July 6 — retroactive R&D expensing election generally closes for eligible small businesses.
• September 15 / January 15 — Q3 and Q4 estimated taxes; if a tariff refund, R&D refund, or strong year changed your picture, true-up here rather than eating penalties.
• Fall open enrollment — first shot at HSA eligibility on bronze/catastrophic plans for 2027 (and a check on 2026 eligibility you may already have).
• December 31 — last day to shape 2026: charitable bunching above the new floor, equipment placed in service, loss planning under the lower EBL thresholds, Roth conversions, and a full year of clean payroll data for tips and overtime.
• January 2027 — redesigned W-2s land; employees see their deductible tips/overtime in black and white.

If reading that list produced one specific "wait — does that apply to us?", good. That's the reflex this page exists to trigger, and it's the exact moment to borrow a phrase we use daily with clients: problems come here to get solved. Bring us the question while the calendar still has room in it.

Want the deep dives? See our companion guides on tariff refunds and the tax trap inside them and the employer playbook for tips and overtime.

Frequently asked questions

Do I need to do anything before filing season? Often, yes — most of the value in this list comes from acting during 2026: estimated-payment adjustments, equipment timing, charitable bunching, Roth catch-up elections, and payroll data capture. Filing season merely records what you did.

Is the SALT cap really $40,400 for everyone in 2026? The cap is $40,400 for 2026, but it phases back down for taxpayers with modified AGI above roughly $505,000, bottoming at $10,000 — and it's scheduled to revert to $10,000 in 2030. High-income itemizers should model it rather than assume it.

Did tax brackets change for 2026? The seven rates (10%–37%) stayed; the income ranges shifted up with inflation under Rev. Proc. 2025-32, and the 37% rate generally begins above $640,600 (single) / $768,700 (joint) for 2026. Withholding tables already reflect this.

I heard bonus depreciation is 100% again. Permanently? Generally yes — for qualified property acquired and placed in service after January 19, 2025, under the 2025 law. "Permanent" in tax means "until Congress changes it," but there is no scheduled phase-down.

What's the single most time-sensitive item on this page? For eligible small businesses with 2022–2024 domestic R&D costs: the retroactive expensing election, generally due by July 6, 2026. For everyone else: December 31, 2026 — the day every 2026 planning lever expires at once.

Sources

• IRS, Rev. Proc. 2025-32 (2026 inflation adjustments — standard deduction, brackets, SALT, §179, estate): irs.gov/pub/irs-drop/rp-25-32.pdf and the IRS newsroom summary
• IRS, Notice 2025-67 (2026 retirement plan limits): irs.gov/pub/irs-drop/n-25-67.pdf
• One Big Beautiful Bill Act, Pub. L. 119-21 (July 4, 2025): congress.gov
• IRS, Rev. Proc. 2025-28 (§174A retroactive election procedures): irs.gov/pub/irs-drop/rp-25-28.pdf
• IRS FAQs on the 1099-K threshold under the One, Big, Beautiful Bill: irs.gov/newsroom
• IRS Fact Sheet FS-2025-05 (accelerated termination of energy credits §§25C, 25D, 25E, 30C, 30D, 45L, 45W, 179D): irs.gov/newsroom
• IRS guidance on HSA changes under the One, Big, Beautiful Bill and Rev. Proc. 2025-19 (2026 HSA limits): irs.gov/newsroom · rp-25-19.pdf
• IRS, Trump Accounts (contributions beginning July 4, 2026; pilot program): irs.gov/trumpaccounts

This article is general information, not tax or legal advice for your specific situation. Figures are for the tax years stated, were current as of July 2026, and can change.

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Have a question about your own situation? Book a free 15-min call at wayg.co/book-call — or email hello@wayg.co. A real person replies within one business day.

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Related reading & tools

• Deep dives from this hub: Tariff Refunds in 2026 — and the Tax Trap Nobody Mentions · No Tax on Tips and Overtime: The 2026 Employer Playbook
• The service pages: wayg.co/tariff-refunds · wayg.co/tips-overtime-payroll
• Run your own numbers: S-Corp Savings Calculator · LLC vs S-Corp · Pricing · Book a free 15-min call