Local Infrastructure Tax Cuts Act: New SALT Limits for High Earners and Breaks for Home Improvement Projects Kick Off in 2027

Starting in 2027, the rules for how you deduct state and local taxes (SALT) on your federal return are getting a major overhaul. This bill essentially splits the tax code into two paths: it tightens the belt on general state tax deductions for higher earners while opening a new door for homeowners to write off specific local infrastructure costs. If you’ve been relying on that standard $10,000 SALT deduction to take the sting out of your state income or property taxes, the math is about to change based on exactly how much you bring home. Under Section 2, the bill introduces a sliding scale for the SALT cap. If you’re a single filer making over $107,500 or a married couple making over $215,000, your ability to deduct these taxes vanishes entirely. For those under those marks, the cap stays at $10,000 (or $5,000 if married filing separately), with all these numbers adjusted for inflation starting in 2028.

The Infrastructure Trade-Off

While the bill pulls back on general deductions, Section 3 introduces a new perk called the "Qualified Special Assessment Tax" deduction. Think of this as a targeted break for local progress. If your local government creates a special district to fund a new water line, a neighborhood school, or even a dam restoration, and they charge your property a specific fee to pay for it, you can now deduct that cost. There is a catch, though: this only applies to your principal residence. So, if you’re a homeowner and your town levies a special tax to upgrade the local fire station or fix the sewers on your street, that money can now be subtracted from your taxable income, potentially softening the blow of rising local infrastructure costs.

Who Wins and Who Pays?

The real-world impact depends heavily on where you live and what you earn. Imagine a software engineer in a high-tax state like New Jersey or California making $120,000. Under these rules, they would lose their $10,000 SALT deduction entirely, likely seeing a higher federal tax bill. On the flip side, a family in a developing suburb making $90,000 might not lose their standard SALT deduction, but they could gain a brand-new write-off if their local municipality issues a special assessment to build a new community hospital or paved roads. It’s a move that shifts the tax benefit away from general state spending and toward specific, localized projects that you can see from your front porch.

Implementation Hurdles and Fine Print

One of the trickier parts of this bill is the requirement that a special assessment must "directly benefit" the taxed property to be deductible. This is a bit of a gray area—while a new sewer line under your driveway is an obvious benefit, the direct link to a police station or a telecommunications tower might be harder to prove to the IRS. Additionally, because the bill ties the $0 deduction threshold to your "Modified Adjusted Gross Income," anyone with income from abroad or U.S. territories will need to do some extra math. As we move toward the 2027 start date, the big question will be whether local governments start reclassifying general taxes as "special assessments" to help their residents keep more of their money, or if the loss of the SALT deduction for middle-to-high earners simply results in a tighter squeeze on household budgets.