The SALT Cap Just Quadrupled: What Philadelphia Homeowners and Business Owners Need to Know for 2026
If you stopped itemizing your deductions years ago because the $10,000 SALT cap made it pointless, it might be time to run the numbers again.
The One Big Beautiful Bill Act (OBBBA) raised the cap on the State and Local Tax (SALT) deduction from $10,000 to $40,000 for the 2025 through 2029 tax years. For homeowners in high-property-tax areas like Ardmore, Bryn Mawr, and the rest of the Main Line, that’s not a small tweak — it could change whether itemizing makes sense for you at all.
Here’s what changed, who benefits, and what you should be doing before year-end.
A Quick Refresher: What Is the SALT Cap?
The SALT deduction lets taxpayers who itemize deduct what they pay in:
- State and local income taxes (or sales tax, if you elect that instead)
- Property taxes on your home
- Personal property taxes (like on a vehicle, in some states)
Before 2018, there was no cap — you could deduct the full amount. The Tax Cuts and Jobs Act (TCJA) introduced a $10,000 cap starting in 2018, which hit homeowners in high-tax states like Pennsylvania, New Jersey, and New York especially hard. For many Main Line homeowners, property taxes alone blew past $10,000, meaning every dollar above that cap gave you zero tax benefit.
What OBBBA Changed
Starting with the 2025 tax year, the SALT cap increases to $40,000 for most filers ($20,000 if married filing separately). It’s scheduled to tick up slightly each year through 2029, then the cap is set to revert — so this is a window, not necessarily a permanent fix.
There’s an important catch: the higher cap phases out for high earners. Once modified adjusted gross income crosses a certain threshold, the deduction begins to phase down, though it doesn’t disappear entirely — it phases back toward the old $10,000 floor.
This matters a lot for the kind of clients JD Tax & Accounting works with: real estate investors and professional service business owners in Philadelphia, many of whom are exactly in that income range where the phase-out becomes relevant.
Why This Matters More in Pennsylvania
Pennsylvania’s flat income tax rate is relatively low, but local wage taxes and property taxes — especially in Montgomery, Delaware, and Chester counties — add up quickly. Combine a Philadelphia-area mortgage with local school district property taxes, and it’s easy to see SALT payments well above the old $10,000 cap, even for a solidly middle-class household.
That means a lot of people who gave up on itemizing in 2018 and started taking the standard deduction every year may now come out ahead by itemizing again.
Who Should Revisit Their Tax Strategy
- Homeowners with high property tax bills, particularly anywhere on the Main Line or in Chester County
- Business owners who pay significant state income tax as pass-through income on their personal return
- Real estate investors with multiple properties generating state tax liability
- Anyone who stopped itemizing after 2018 and has been defaulting to the standard deduction out of habit
If your itemized deductions — SALT plus mortgage interest, charitable giving, and anything else — now exceed the standard deduction, itemizing could meaningfully lower your tax bill for the first time in years.
What to Do Before Year-End
1. Re-run your itemized vs. standard deduction comparison
Don’t assume the standard deduction is still your best option just because it was in 2023 or 2024.
2. Check where you land relative to the phase-out threshold
If you’re a high-income business owner, the benefit may be partially or fully phased out — this is where a real projection matters more than a rule of thumb.
3. Time your property tax payments strategically
If you’re near the cap or the phase-out threshold, timing when you pay (December vs. January) can shift which tax year captures the deduction.
4. Talk to your accountant before you file, not after
This is a planning opportunity, not just a filing detail — decisions made before December 31 affect what you can claim.
The Bottom Line
The SALT cap increase is one of the more consequential — and least talked-about — provisions of OBBBA for everyday Philadelphia homeowners and small business owners. If you haven’t itemized in years, it’s worth a second look before you file your 2026 return.
Not sure whether the new SALT cap changes your tax strategy? JD Tax & Accounting Advisors helps Philadelphia small business owners and real estate investors build a tax plan that actually reflects the current rules — not the ones from five years ago. Book a free consultation to see where you stand.