SALT Cap
Category: Deductions · Related form: Schedule A
The dollar limit on how much state and local tax (income or sales, plus property tax) you can claim as an itemized deduction on Schedule A.
How SALT Cap fits 2026 planning
SALT Cap sits inside deduction planning — standard vs itemized choices, above-the-line adjustments, and Schedule A limits. For tax year 2026, US Tax Tools treats year-scoped constants (brackets, contribution limits, wage bases, credit schedules) as separate datasets — so explanations of SALT Cap should be read with the same year selected in any linked calculator.
Category focus: Deductions. Readers usually land on this page while comparing a paycheck estimate, a credit phaseout, or a retirement contribution room figure that depends on understanding SALT Cap first.
Worked example
If your combined state income and property taxes are $25,000 and the cap you apply is $10,000, only $10,000 reaches Schedule A.
Treat the example as a teaching sketch, not a filing position. Change filing status, state residency, or mid-year events and the same definition of SALT Cap can produce a different cash outcome even when the glossary text stays the same.
What to watch for
Definitions of SALT Cap can differ slightly across IRS publications, SSA rules, Marketplace subsidy worksheets, and state agencies. When two programs both say “income,” confirm which modification rules apply — MAGI for one credit is not always MAGI for another.
Legislation and inflation adjustments can move the dollar thresholds around SALT Cap without renaming the concept. Prefer the effective date on the primary source (Rev. Proc., SSA notice, USDA table, or state DOR bulletin) over any blog summary — including this one if a later notice supersedes it.
On a filed return, SALT Cap most often surfaces around Schedule A. Read the official IRS instructions for that form for the tax year you are filing — glossary pages summarize concepts; they do not replace line-by-line worksheets.
Next step
When you are ready to model numbers, open the SALT Cap related calculator on US Tax Tools. Engines keep tax-year datasets separate so a 2025 habit does not silently reuse a 2026 constant.
Related reading: Tax insights for longer 2026 explainers, Methodology for how engines store cents and traces, and Disclaimer for educational-use limits.