You're over-assessed when the County's value is higher than what your home would actually sell for — and then you're over-paying every year until you appeal. Allegheny County's annual assessment appeal deadline is March 31 (BPAAR). PA assesses at full market value; the Common Level Ratio (CLR) discount applies on appeal, so even a parcel near its sale price is frequently appealable. Allegheny last ran a county-wide reassessment in 2024.
Live Allegheny County parcels whose assessed market value exceeds their recent arm's-length sale price — a real over-assessment signal pulled from the public assessor roll. If your parcel looks like these, you have a strong appeal:
| PIN | Use | Recent sale | County says mkt | Over | Indic. overpay |
|---|---|---|---|---|---|
| 0087••• | NURSING HOME/PRIVATE HOS | $3,571,370 | $5,321,600 | 1.49× | ~$38,505/yr |
| 0023••• | SMALL DETACHED RET(UNDER 10000) | $1,500,000 | $2,587,100 | 1.72× | ~$23,916/yr |
| 0081••• | NURSING HOME/PRIVATE HOS | $1,750,000 | $2,634,600 | 1.51× | ~$19,461/yr |
| 0025••• | OFFICE - 1-2 STORIES | $300,000 | $930,200 | 3.1× | ~$13,864/yr |
| 0009••• | VACANT COMMERCIAL LAND | $3,500,000 | $4,074,000 | 1.16× | ~$12,628/yr |
| 0002••• | OFFICE-ELEVATOR -3 + STORIES | $650,000 | $874,300 | 1.35× | ~$4,935/yr |
| 0002••• | CONDOMINIUM UNIT | $392,001 | $564,500 | 1.44× | ~$3,795/yr |
| 0020••• | CHURCHES, PUBLIC WORSHIP | $225,000 | $376,800 | 1.67× | ~$3,340/yr |
Most owners who win use a contingency property-tax appeal firm — it costs nothing unless they cut your bill, then takes a share of the first-year saving. About 95% of over-assessed owners never appeal, so the saving is usually left on the table.
Open the official Allegheny County appeal page → Confirm the official deadline →against the official Allegheny County / PA deadline (alleghenycounty.us · 53 Pa.C.S. §8844). These are public deadline facts, not legal or tax advice — confirm your exact date with the Allegheny County Board of Property Assessment Appeals & Review (BPAAR) and consult a professional before filing.
More for Allegheny County: Allegheny appeal deadline · Allegheny property tax appeal.