If you're a homeowner in a high-tax state like California, New York, or New Jersey, you've probably been feeling the pinch since 2017 when the Tax Cuts and Jobs Act capped your State and Local Tax (SALT) deduction at $10,000. That number hasn't budged, until now.
The "One Big Beautiful Bill" (OBBBA) just changed the game. For 2026, the SALT deduction cap jumps to $40,400, and it's set to increase gradually through 2029. This is huge news for anyone paying hefty property taxes or state income taxes. But like everything in tax law, there's a catch (or two).
Let's break down what this means for your wallet and whether you'll actually benefit from the new rules.
What Is the SALT Deduction, Anyway?
The SALT deduction allows you to deduct what you pay in state and local taxes: including property taxes, state income taxes, or state sales taxes: from your federal taxable income.
Before 2017, there was no cap. If you paid $50,000 in property and state income taxes, you could deduct the full $50,000. Then the 2017 tax law slapped a $10,000 limit on it, which hit homeowners in high-cost-of-living areas especially hard.
Now, with the OBBBA, that cap is climbing back up: but only temporarily.
The New Numbers: How Much Can You Deduct?
Starting in 2026, the SALT cap increases to $40,400 (for married couples filing jointly and heads of household). If you're married filing separately, your cap is half that amount: $20,200.
Here's the timeline through 2029:
- 2025: $40,000
- 2026: $40,400
- 2027: $40,800
- 2028: $41,200
- 2029: $41,600
- 2030 and beyond: Back to $10,000 (unless Congress extends it again)
Notice the pattern? The cap increases by 1% annually until 2029, then it falls off a cliff back to the old $10,000 limit. So this isn't permanent: just a temporary relief window.
Who Actually Benefits?
Not everyone will see a major tax break from this change. The increased SALT cap primarily helps:
Homeowners in high-tax states. If you're paying $30,000+ in combined property and state income taxes, this is a win. States like California, New York, New Jersey, Connecticut, and Illinois have some of the highest tax burdens in the country.
Higher earners (but not too high). There's an income threshold that phases out your ability to claim the full $40,400. More on that in a second.
Itemizers. You have to itemize deductions to claim SALT. If you're taking the standard deduction ($30,000 for married couples in 2026), the SALT cap doesn't matter to you.
For small business owners running sole proprietorships or single-member LLCs, this also impacts your personal tax return since your business income flows through to your individual taxes. Smart small business tax planning means understanding how the SALT deduction interacts with your other itemized deductions.
The Math: How Much Can You Actually Save?
Let's say you're a married couple filing jointly in the 24% tax bracket. You paid $40,400 in state and local taxes in 2026.
- Under the old $10,000 cap: You could only deduct $10,000, saving you $2,400 in federal taxes.
- Under the new $40,400 cap: You deduct the full $40,400, saving you $9,696 in federal taxes.
That's a difference of $7,296 in your pocket.
If you're in a higher tax bracket: say 32%: the savings are even bigger. A full $40,400 deduction at 32% saves you $12,928 instead of $3,200 under the old cap. That's nearly $10,000 in extra savings.
The key is that the deduction reduces your taxable income, not your tax bill dollar-for-dollar. So the higher your tax bracket, the more valuable the deduction becomes.
The Income Phase-Out: The Fine Print You Need to Know
Here's where things get tricky. The full $40,400 cap only applies if your modified adjusted gross income (MAGI) is $500,000 or below.
For 2026, that threshold increases slightly to $505,000 (and continues to increase by 1% annually through 2029). Once your income crosses that line, your SALT cap starts shrinking.
The phase-out works like this: for every dollar your MAGI exceeds the threshold, your SALT cap reduces by 30 cents: but it can't drop below the old $10,000 floor.
Example: A married couple has a MAGI of $540,000 in 2026. That's $35,000 over the $505,000 threshold.
- Reduction: $35,000 × 30% = $10,500
- New SALT cap: $40,400 – $10,500 = $29,900
They can still deduct $29,900 in state and local taxes, which is way better than the old $10,000 limit: but they don't get the full $40,400 benefit.
If your income is high enough, you could eventually phase down all the way to the $10,000 floor. At that point, you're right back where you started before the OBBBA.
What This Means for Your 2026 Tax Strategy
If you're a homeowner or small business owner doing tax preparation for small business planning, here's what you should be thinking about:
1. Review your withholdings. If you've been used to the $10,000 cap, you might be over-withholding on your federal taxes. Adjust your W-4 or estimated payments to account for the larger deduction.
2. Decide: itemize or standard? With a higher SALT cap, itemizing might finally make sense again. Add up your SALT deduction, mortgage interest, charitable contributions, and medical expenses. If the total exceeds the standard deduction, itemize.
3. Plan ahead for 2030. The cap drops back to $10,000 after 2029. If you have flexibility in timing large deductible expenses (like property tax prepayments or charitable gifts), consider front-loading them into 2026–2029 while the higher cap lasts.
4. Consider state workarounds. Some states created pass-through entity tax (PTET) elections that let business owners pay state taxes at the entity level instead of personally. This can help sidestep the SALT cap entirely for business income. Check with your tax advisor on whether this makes sense for your situation.
Is This Really a "Big, Beautiful" Change?
Let's be real: the increased SALT cap is great news if you're in a high-tax state and you're itemizing. It puts real money back in your pocket: potentially thousands of dollars.
But it's not a universal win. If you're taking the standard deduction, this doesn't help you at all. If your income is too high, the phase-out might limit your benefit. And if you're in a low-tax state, you probably weren't hitting the $10,000 cap anyway.
The "sort of" in our title is important. This isn't a permanent fix: it's a temporary relief measure that expires in 2030. Congress could extend it again, but there's no guarantee.
For now, though? If you've been paying more than $10,000 in state and local taxes and you're under the income threshold, this is one of the most taxpayer-friendly provisions in the OBBBA.
Next Steps: Talk to a Tax Pro
Tax laws are complicated, and the SALT deduction is just one piece of your overall tax picture. At MCG Service, we help individuals and small business owners navigate these changes and optimize their tax strategy for 2026 and beyond.
Whether you need help with small business tax planning, understanding the new rules, or just figuring out if itemizing makes sense for you this year, we've got your back.
Don't leave money on the table. Let's make sure you're taking full advantage of every deduction you're entitled to: including that newly expanded SALT cap.
Ready to maximize your 2026 tax savings? Reach out to MCG Service and let's talk strategy.