Q: What is one of the biggest tax changes for 2025, especially for Massachusetts taxpayers?
A: The increase in the state and local tax deduction cap may be one of the most impactful, particularly in high-tax states such as Massachusetts.
Under prior law, the Salt deduction was capped at $10,000, limiting how much taxpayers could deduct for state income taxes and local property taxes. Beginning in 2025, that cap has been increased to $40,000.
Here’s how this works in practice:
Salt deductions apply when you itemize. You can deduct certain expenses – including state income taxes and property taxes – if your itemized deductions exceed the standard deduction.
The prior $10,000 cap limited many taxpayers. In states such as Massachusetts, many households already pay well above $10,000 in combined state and local taxes but couldn’t deduct the full amount. The new $40,000 cap changes the equation. With a higher cap, more taxpayers may now find that itemizing results in a larger deduction than taking the standard deduction.
This can reduce federal taxes and increase refunds!
A larger deduction lowers taxable income, which can reduce taxes owed and potentially increase a refund.
There are still limitations. The higher cap begins to phase out for higher-income households (generally starting around $500,000 of income for married couples filing jointly), which may reduce or eliminate the benefit at higher levels.
The bottom line: The increase in the Salt cap could shift many taxpayers – especially in Massachusetts – back toward itemizing deductions. That change alone may lead to lower federal taxes and larger refunds compared with prior years.
Send questions about your taxes to Vincent Hicks, a CPA based in Cambridge who has more than 20 years of experience, at vincent@hickscpasolutions.com. You can call Hicks at (859) 553-0788.
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