With the SALT cap now high enough for most homeowners to deduct their full property tax bill, it matters more than ever to know which lines on that bill actually qualify — because not everything your county charges you is a deductible tax.
The basic test: it has to be a tax, based on value
To be deductible, a real estate charge must be a genuine tax, imposed uniformly for general public welfare purposes, and based on the assessed value of the property. This is what separates deductible property tax from charges that merely appear on the same bill.
What typically qualifies
General county, municipal, and school district property taxes based on your home's assessed value all qualify, as do property taxes on a second home or vacant land you own personally, subject to the same combined SALT cap as your primary residence.
What typically does not qualify
Charges for specific services or improvements that benefit your property directly — a sewer line assessment, a special charge for adding a sidewalk or street lighting, homeowners association dues, and flat per-unit trash or water fees not based on value — are not deductible real estate taxes, even when they're billed together with your property tax and paid to the same government entity. Look for these itemized separately on your tax bill and exclude them from your deduction.
Escrow payments versus what was actually paid
If your property taxes are paid through a mortgage escrow account, the deductible amount is what your lender actually paid to the taxing authority during the year — not necessarily what you paid into escrow, since escrow balances can run ahead of or behind the actual tax bill. Your year-end mortgage statement (Form 1098) typically reports the correct figure to use.
Frequently asked questions
Are property taxes on a rental property deductible the same way?
No — property tax on a rental property is generally deducted as a rental business expense on Schedule E, not as a personal itemized deduction subject to the SALT cap.
Can I deduct property taxes I paid in advance for next year?
Generally only the portion assessed for the current tax year is deductible when paid; prepaying future years' taxes doesn't accelerate the deduction in most cases.
What if my property tax bill doesn't separate the special assessments from the general tax?
Contact your local taxing authority or check the assessment notice for an itemized breakdown — most jurisdictions can provide this even if the consolidated bill doesn't show it clearly.