Quick Answer
The SALT deduction lets you deduct state income taxes, local property taxes, and sales taxes (if you choose them over income taxes) on your federal return. Since 2017, it's capped at $10,000 per year ($5,000 if married filing separately), which particularly impacts high-tax states like California, New York, and New Jersey.
Best Answer
Robert Kim, CPA
Homeowners and residents of states with income tax who want to understand the basics
What qualifies for the SALT deduction?
The State and Local Tax (SALT) deduction allows you to deduct up to $10,000 in combined state and local taxes on your federal return. You can deduct:
The key restriction: your total SALT deduction cannot exceed $10,000 per year, regardless of how much you actually paid.
Example: How the SALT deduction works
Let's say you're a homeowner in Pennsylvania earning $90,000:
Since your total is under $10,000, you can deduct the full $7,800 on Schedule A. This reduces your taxable income from $90,000 to $82,200, saving you roughly $1,716 in federal taxes (at the 22% bracket).
When SALT hits the $10,000 cap
Now consider a homeowner in Westchester County, NY earning $150,000:
They "lose" $16,500 worth of deductions due to the cap, costing them roughly $3,630 in extra federal taxes (at the 22% bracket).
Sales tax vs. income tax election
You must choose between deducting state income taxes OR state sales taxes — not both. Most people choose income taxes, but sales taxes might be better if:
The IRS provides sales tax tables based on your income and state, plus you can add sales tax on major purchases over $1,000.
Property tax timing strategies
Since the SALT cap applies per tax year, timing your property tax payments can help:
What you should do
1. Track all SALT payments throughout the year — income taxes, property taxes, and any local taxes
2. Compare itemizing vs. standard deduction — SALT alone rarely justifies itemizing unless you have other deductions
3. Consider timing strategies if you're near the $10,000 cap
4. Use our return scanner to ensure you're claiming all eligible SALT deductions
Key takeaway: The SALT deduction is capped at $10,000 per year, but proper timing and understanding what qualifies can help you maximize this valuable deduction, especially if you itemize.
*Sources: [IRS Publication 17](https://www.irs.gov/pub/irs-pdf/p17.pdf), [IRS Schedule A Instructions](https://www.irs.gov/pub/irs-pdf/i1040sa.pdf)*
Key Takeaway: The SALT deduction caps state and local tax deductions at $10,000 annually, but understanding what qualifies and timing strategies can help maximize this benefit for itemizers.
SALT deduction components and their limits
| Tax Type | What's Included | Annual Limit | Key Restrictions |
|---|---|---|---|
| State Income Tax | State income tax, state disability tax | Part of $10,000 total | Cannot also deduct sales tax |
| Local Property Tax | Real estate taxes on homes, rentals | Part of $10,000 total | Must be assessed taxes, not penalties |
| State Sales Tax | General sales tax, major purchases | Part of $10,000 total | Either this OR income tax, not both |
| Local Income Tax | City wage tax, local income tax | Part of $10,000 total | Must be income-based tax |
More Perspectives
Michelle Woodard, JD
Taxpayers who moved between states during the tax year and need to allocate SALT deductions
SALT complications when you move states
Moving between states creates unique SALT deduction challenges because you may pay taxes to multiple states on the same income, and you need to carefully track which payments qualify.
Resident vs. non-resident state taxes
When you move, you typically file:
Example: You moved from Illinois to Texas in June, earning $60,000 total:
Watch out for double taxation relief
If your new state taxes income that your old state already taxed, most states provide a credit to avoid double taxation. However, this doesn't affect your federal SALT deduction — you can still deduct what you actually paid to each state.
Property tax apportionment
Property taxes are deductible based on when you're legally liable, not when you pay:
Key documentation to keep
Key takeaway: Moving states doesn't disqualify SALT deductions — you can deduct taxes paid to all states, but proper documentation and understanding apportionment rules is crucial.
*Sources: [IRS Publication 17](https://www.irs.gov/pub/irs-pdf/p17.pdf)*
Key Takeaway: Multi-state movers can deduct SALT paid to all states within the $10,000 cap, but must carefully document part-year residency and property tax apportionments.
Robert Kim, CPA
Taxpayers who work remotely, have rental properties, or business income across state lines
Multi-state income creates complex SALT situations
If you earn income in multiple states — through remote work, rental properties, or business activities — you may owe taxes to several states, creating both opportunities and complications for your SALT deduction.
Common multi-state scenarios
Remote worker: Live in Florida (no income tax) but work for a New York company. New York may tax your wages, creating a SALT deduction opportunity even though you live in a no-tax state.
Rental property owner: Live in Texas but own rental property in Colorado. Colorado taxes your rental income, and you can deduct those taxes subject to the $10,000 SALT cap.
Business owner: Operate in multiple states through conferences, clients, or facilities. Each state where you have sufficient connection may tax a portion of your business income.
The $10,000 cap applies to everything combined
Regardless of how many states tax your income, your total SALT deduction cannot exceed $10,000. This includes:
Example: Multi-state business owner
Strategic planning opportunities
1. State tax credits: Many states provide credits for taxes paid to other states, reducing your overall tax burden
2. Business structure: Consider whether multi-state business income should flow through different entity types
3. Property timing: Since property taxes in multiple states count toward the same $10,000 cap, coordinate payment timing across all properties
Key takeaway: Multi-state income can create valuable SALT deductions, but the $10,000 cap applies to the total across all states, making strategic planning essential.
*Sources: [IRS Publication 17](https://www.irs.gov/pub/irs-pdf/p17.pdf), [Multistate Tax Commission Guidelines](https://www.mtc.gov/)*
Key Takeaway: Multi-state income creates SALT deduction opportunities, but the $10,000 cap applies to total taxes paid across all states, requiring careful coordination and planning.
Sources
- IRS Publication 17 — Your Federal Income Tax (For Individuals)
- IRS Schedule A Instructions — Instructions for Schedule A (Itemized Deductions)
Related Questions
Reviewed by Robert Kim, CPA on February 28, 2026
This content is for educational purposes only and is not a substitute for professional tax advice. Consult a qualified tax professional for advice specific to your situation.