What Shifting Tax Policies And Itemization Caps Mean For High Earners

As tax season approaches, those who are earning six figures face a notably different landscape than in recent years. 

Major federal tax changes enacted under the One Big Beautiful Bill Act (OBBBA) — signed in mid‑2025 — are reshaping itemized deductions, including the oft‑debated SALT (state and local tax) deduction cap and other key elements of the tax code. 

According to Forbes, these shifts could meaningfully affect the returns of high‑income taxpayers,  especially those in high‑tax states or with large deductible expenses. It could also make decisions about itemizing deductions versus taking the standard deduction more consequential than ever. 

One of the biggest changes for the 2026 tax filing season (for 2025 income) is the expanded SALT deduction cap, as per Forbes. Previously capped at $10,000, the SALT deduction, which allows itemizers to deduct state and local taxes such as income and property taxes, was raised to $40,000 starting in 2025 and will index upward annually through 2029. 

However, this boost isn’t available for all high earners. For taxpayers with a modified adjusted gross income (MAGI) above approximately $505,000 in 2026, the deduction begins to phase out, reducing the benefit dollar for dollar beyond that threshold. Once income exceeds the top limits, the SALT deduction reverts to the original $10,000.

For six‑figure earners living in states with high taxes, like New York or California, this reform might make itemizing more favorable than in recent years, provided income stays below the phase‑out range.

Under current law, the standard deduction remains high due to adjustments first introduced by the 2017 Tax Cuts and Jobs Act (TCJA) and continued under OBBBA, as per the Bipartisan Policy Center. 

For many taxpayers, this means the standard deduction still exceeds the value of itemized deductions, especially if SALT and other itemized deductions are limited by income phaseouts.

Although for some six‑figure earners who pay significant state income or property taxes and mortgage interest, the expanded SALT cap could make itemizing worthwhile if total deductible expenses exceed the standard deduction. 

The Bipartisan Policy Center says determining which path yields a lower tax bill requires careful comparison of total itemized deductions against the standard deduction

Changes aren’t limited to SALT. Recent tax law updates also introduced new limitations that affect itemized deductions more broadly, particularly for taxpayers in the highest tax brackets. 

According to analysis from tax policy experts, taxpayers at the top marginal rate may face limits on how much their charitable and other itemized deductions reduce taxable income starting in 2026. 

These could reduce the marginal value of itemized deductions by scaling back the benefit as income rises. This means that even with a higher SALT cap, the overall tax savings from itemizing could be modest for top earners when weighed against the standard deduction.

The phaseout rules associated with these changes could make tax planning especially important for high earners. 

According to the National Society of Tax Professionals, the SALT cap’s phaseout, beginning around $505,000,  and eventual reversion to the $10,000 limit at higher incomes, means that two taxpayers with similar gross income could see very different tax outcomes based on small differences in income

For example, a married couple earning just below the phaseout threshold might claim the full expanded SALT benefit and combine it with mortgage interest and charitable contributions to reduce taxable income significantly. However,  those just above the phaseout range may see little to no SALT benefit, narrowing the incentive to itemize at all, as per the National Society of Tax Professionals

This makes income timing and strategic deductions such as bunching property tax payments or charitable contributions into a single year, which are potentially valuable tools for reducing tax liability.