A quiet but major change is already scheduled in the tax code — and it hits in 2026, not some distant future. Unless Congress acts, many of the individual income tax cuts from the 2017 Tax Cuts and Jobs Act (TCJA) expire after December 31, 2025. That reset could mean higher tax bills, smaller paychecks, and changed incentives for saving and home ownership.
The Clock Is Ticking on the 2017 Tax Cuts — Here’s What That Means for Your Paycheck
This isn’t speculation. Under current law, the tax brackets, standard deduction, and several popular credits will revert to pre‑2018 rules. For middle‑income households, the impact could be thousands of dollars a year.
This explainer walks you through what is scheduled to change, why it matters, and what you can do in the next 12–24 months.
What Exactly Is Scheduled to Happen in 2026?
The TCJA made many temporary changes for individuals that are set to sunset after 2025. Key items likely to hit typical households:
1. Income Tax Brackets Rise
Current law has seven brackets: 10%, 12%, 22%, 24%, 32%, 35%, and 37%.
In 2026, unless extended, brackets are expected to revert to roughly: 10%, 15%, 25%, 28%, 33%, 35%, and 39.6% (with precise thresholds adjusted for inflation).
Example (married filing jointly, 2024 vs. potential 2026 comparison)
- In 2024, the 12% bracket goes up to $94,300 of taxable income.
- Under pre‑TCJA style rules, that tier was 15% and kicked in at lower income levels.
For many middle‑income families, part of their income that’s taxed today at 12% could face 15% or 25% in 2026.
2. The Standard Deduction Shrinks
The TCJA nearly doubled the standard deduction, while eliminating or limiting some itemized deductions.
2024 standard deduction (indexed to inflation):
- Single: $14,600
- Married filing jointly: $29,200
Pre‑2018, the standard deduction was lower, but personal exemptions were allowed.
In 2026, the standard deduction is scheduled to drop significantly, and personal exemptions will return. Whether this is good or bad for you depends on family size and itemized deductions.
3. Child Tax Credit Becomes Less Generous
TCJA beefed up the Child Tax Credit (CTC):
- Credit increased to $2,000 per qualifying child under 17
- Up to $1,600 is refundable in 2023 (indexed; $1,700 in 2024)
- Phase‑out begins at $400,000 AGI for married couples
- $1,000 per child
- Phase‑out starting around $110,000 for married couples (inflation‑adjusted)
In 2026, rules are set to revert closer to:
That means many middle‑income families could lose $1,000 per child in annual credits.
4. SALT Deduction Cap Could Disappear — or Be Replaced
The TCJA capped state and local tax (SALT) deductions at $10,000. That cap expires after 2025.
If the cap sunsets:
- High‑tax‑state homeowners (e.g., CA, NY, NJ, IL) could see more deductions.
- But if higher brackets return, that extra deduction will partially offset a higher tax rate, not necessarily produce a big net win.
Congress could also choose to partially extend or modify the cap.
How Much Could This Cost a Typical Household?
Actual impact depends on income, filing status, kids, mortgage, and where you live. Rough, simplified illustrations:
Scenario 1: Married couple, no kids, W‑2 income
- Income: $120,000
- Filing status: Married filing jointly
- No itemizing, standard deduction only
- Taxable income ≈ $120,000 − $29,200 = $90,800
- Tax is layered: 10%, 12%, 22% rates
- Approx tax bill: around $11,000–$12,000 (simplified)
- Smaller standard deduction + higher marginal rates
- This couple could easily see an extra $1,000–$2,000 in federal tax annually.
Under 2024‑style rules:
Under 2026‑style (higher brackets, smaller standard deduction):
Scenario 2: Married couple, two kids, homeowner
- Income: $160,000
- Mortgage interest: $9,000
- SALT (property + state income): $15,000
- SALT capped at $10,000, mortgage interest deductible
- Child Tax Credit: 2 × $2,000 = $4,000
- Possibly higher brackets
- CTC falls to ≈ $1,000 per child → $2,000 total
- If SALT cap ends, they may deduct the full $15,000 SALT, partially offsetting higher rates
Today:
After 2025 (if no change):
Net effect: Could still be $1,500–$3,000 more in tax, depending on final thresholds and deductions.
Why Is This Happening?
These changes are not new decisions; they are baked into the law passed in 2017:
- To keep the official cost of TCJA lower over a 10‑year budget window, many individual provisions were written to expire after 2025.
- Extending all the individual cuts could cost trillions of dollars over the next decade, according to Congressional Budget Office estimates.
- Whether Congress renews, tweaks, or lets them expire will be a major political and budget debate in 2025.
Until new legislation passes, the default is reversion to pre‑TCJA rules.
What It Means for Your Budget, Savings, and Debts
1. Less Take‑Home Pay
If brackets rise and credits shrink, your employer’s withholding tables will adjust. That means:
- Smaller net paychecks starting in 2026 for many workers
- Higher chance of under‑withholding if you don’t update your W‑4
2. Shifting Value of Itemizing vs. Standard Deduction
If the standard deduction shrinks and SALT cap ends, more homeowners — especially in high‑tax states — will itemize again.
This changes the value of:
- Mortgage interest
- Charitable donations
- State and local taxes
3. Changed Strategy for Roth vs. Traditional Accounts
If you expect higher tax rates in 2026 and beyond, Roth contributions (pay tax now, withdraw tax‑free later) may look more attractive today. Conversely, traditional pre‑tax contributions could be less of a bargain if your retirement tax rate doesn’t end up lower.
4. Estate and Gift Tax Planning
The TCJA doubled the federal estate tax exemption, currently over $13 million per person in 2024. That also sunsets after 2025.
- Without action, the exemption could drop to roughly $6–7 million per person (inflation‑adjusted pre‑2018 level).
- High‑net‑worth households may face a bigger estate tax hit and should review gifting and trust strategies well before 2026.
What You Can Do Now: Practical Steps
1. Run a Side‑by‑Side Projection
Use tax software or a professional to:
- Model your 2024 bill under current rules
- Simulate pre‑TCJA rules with your income and deductions
You’ll get a rough sense of your 2026 exposure.
2. Revisit Retirement Contributions
If your modeling suggests higher future rates:
- Consider increasing Roth 401(k) or Roth IRA contributions in 2024–2025.
- High earners may explore Roth conversions while rates are lower, with help from a tax pro.
3. Plan Around Major Income Events
If possible, time:
- Bonuses
- Stock option exercises
- Business income recognitions
…to fall in years with lower marginal rates. For many, that could mean accelerating income into 2024–2025 instead of 2026.
4. Track Policy Developments in 2025
Don’t assume last‑minute extensions. Build a base plan assuming sunset, then:
- Follow credible updates from IRS.gov, Congress’ Joint Committee on Taxation, and non‑partisan think tanks
- Be ready to adjust withholding and estimated payments quickly if new laws pass late in 2025
5. Update Your W‑4 in Late 2025 or Early 2026
When new withholding tables are released:
- Use the IRS withholding estimator (typically updated annually)
- Adjust your W‑4 to reduce the risk of a surprise bill or penalty
The Bottom Line
The 2025 tax rule reset is already law; any change requires active action from Congress. For many American households, it could mean higher tax bills, smaller paychecks, and altered incentives for saving and homeownership starting in 2026.
You do not need to predict what Congress will do. Instead, build a plan assuming the scheduled sunset, understand how much is at stake for your household, and use 2024–2025 to position your income, savings, and estate plans before the rules potentially tighten.