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 |
|---|---|---|---|---|---|
| 0029••• | OFFICE-ELEVATOR -3 + STORIES | $11,650,000 | $18,782,600 | 1.61× | ~$156,917/yr |
| 0158••• | COMMERCIAL TRUCK TERMINAL | $2,015,951 | $5,858,800 | 2.91× | ~$84,543/yr |
| 0638••• | NEIGH SHOP CENTER | $500,000 | $4,300,000 | 8.6× | ~$83,600/yr |
| 0150••• | OFFICE-ELEVATOR -3 + STORIES | $1,545,000 | $5,000,000 | 3.24× | ~$76,010/yr |
| 0265••• | OFFICE - 1-2 STORIES | $7,142,563 | $9,300,700 | 1.3× | ~$47,479/yr |
| 0855••• | COMMERCIAL GARAGE | $600,000 | $2,474,000 | 4.12× | ~$41,228/yr |
| 0537••• | APART:40+ UNITS | $300,000 | $2,060,000 | 6.87× | ~$38,720/yr |
| 0322••• | SUPERMARKETS | $1,111,044 | $2,030,400 | 1.83× | ~$20,226/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 · how to lower Allegheny taxes.