Waypoint No. 2: Who Actually Benefits From More SALT
SALT Deduction After OBBBA: Who Actually Benefits at $40K
For the past several years, the $10,000 cap on state and local tax deductions has been one of the most consistent frustrations for clients in high-tax states. New Jersey income tax, Pennsylvania property taxes, Philadelphia wage tax. For many households, actual SALT liability was two or three times what could be deducted. The One Big Beautiful Bill Act (OBBA) raised that cap to $40,000. What it did not change is the analysis required to know whether your family actually benefits, and that analysis now reaches further into investment and cash flow decisions than it used to.
The mechanics matter more than the headline number. The new $40,000 cap phases out for higher incomes, meaning not every high earner qualifies for the full deduction. Married filers with income above the $500,000 threshold see the benefit erode dollar-for-dollar until it approaches the old $10,000 floor. For clients in the $400,000 to $700,000 household income range, a range that describes many of the professionals, business owners, and dual-income families we work with, the effective deduction may land somewhere in between, not cleanly at either number.
This is also not a standalone calculation. To know whether itemizing beats the standard deduction under the new rules, you need your total SALT liability, income tax, property tax, and local earned income tax if applicable, compared against your applicable cap given your income level. Then you layer in mortgage interest, charitable contributions, and any other itemized deductions to see whether the total clears the standard deduction threshold. It changes every year as income fluctuates and property assessments shift, which means last year’s answer may not be this year’s answer.
In Shetland’s client base specifically, Pennsylvania / New Jersey / New York clients face a particularly meaningful combination of SALT exposure. High property taxes, state income tax, and in many cases Philadelphia or local earned income tax stack together quickly. A household with significant real estate and two professional incomes can easily have $40,000 to $60,000 in actual SALT before ever touching the cap, which means the new limit is genuinely usable for the first time in years, but only if the rest of the return is structured to take advantage of it.
Here is where the planning gets less obvious. Because the phase-out is tied to modified adjusted gross income, the decisions that drive your MAGI now directly drive your SALT deduction. A Roth conversion executed in the wrong year, a large capital gain realized without a coordinated tax projection, a retirement account withdrawal timed for cash flow rather than tax efficiency, any of these can push a household past the threshold where the $40,000 cap starts eroding. Conversely, a year where income is lower by design – maternity leave, a sabbatical, a business transition, a planned conversion window in early retirement – may be exactly the year to itemize aggressively and accelerate deductible payments. These are not tax decisions or investment decisions in isolation. They are the same decision, made twice, and the answer is rarely the same if your CPA and your advisor are working from different spreadsheets.
The change also reopens a timing opportunity that the old $10,000 cap made irrelevant. When the ceiling was low enough that nearly everyone hit it regardless, there was little reason to manage the year of payment carefully. At $40,000, the ceiling is high enough that the actual number matters. Clients who prepay property taxes strategically, calibrate estimated state tax payments to the right calendar year, or manage income timing around a bonus or business event can shift their SALT liability in ways that produce a real federal deduction, but that kind of planning only works before December, not after. If you’ve been in the habit of making estimated payments in January instead of December, this is where that difference shows up.
The clients best positioned to benefit are not always the ones with the highest incomes. They are the households whose SALT exposure falls in the newly usable range, who will itemize once the higher cap is included, and who have someone running the full projection in advance against the income, conversion, and distribution decisions being made on the investment side. Whether the updated deduction saves your family money depends on your specific numbers and on whether the tax side and the wealth side are being run from the same plan. That is a conversation worth having now, while there is still time to act on it.
As always, thank you for reading.
Kevin Dodgson CPA, CFA, CFP®
Founder & CEO, Shetland Financial
