Official resources, forms & tools
Authoritative places to go beyond the estimates on this site: federal tax forms and publications, the Census tables behind our figures, and the tax authority for your state.
Federal taxes (IRS): is property tax deductible?
- IRS Publication 530 — Tax Information for Homeowners — What homeowners can and cannot deduct, and records to keep.
- IRS Publication 530 (PDF) PDF — Print version of Pub 530.
- IRS Topic No. 503 — Deductible Taxes — Real-property tax deduction rules and the SALT cap.
- IRS Schedule A (Form 1040), Itemized Deductions Form — Where state and local real-estate taxes are claimed (lines 5b, 5e).
- IRS Schedule A (Form 1040) (PDF) PDF — The current Schedule A form.
Census data behind this site
- data.census.gov — table B25103 (taxes paid) Data — Explore median real estate taxes paid for any geography.
- data.census.gov — table B25077 (home value) Data — Explore median home value for any geography.
- Census QuickFacts Tool — Quick demographic and housing facts by state, county and city.
- ACS handbooks — understanding the data — Margins of error and appropriate comparisons.
State and local tax authorities
- Federation of Tax Administrators — state tax agencies — Directory linking to every state revenue/tax agency.
- USA.gov — state and local taxes — Official gateway to state tax information.
State property-tax authorities
Each state's official tax or assessment authority — for statewide rules, forms and oversight. The actual bill comes from your local county assessor.
Each link was checked individually against the state's official government domain on 2026-10-24. A few state sites block automated checks; those were confirmed through their official search listings. Delaware has no state-level property-tax page — it is administered entirely by its three counties.
Finding your county assessor
The exact assessed value, millage and exemptions for a specific property come from the local assessor, appraisal district or tax collector — not from survey medians. Search for “[county] [state] assessor” or “[county] property tax” and look for an official .gov site. Each state page and county page also links to that county's Census profile for the underlying data.
See the methodology for how our effective rates are built and their limits, and the data & sources page for the exact files used.