Philadelphia property owners
Are you overpaying on property tax?
A free, honest verdict using the City’s own recorded sales — in about ten seconds. If your home looks over-assessed, get a ready-to-file appeal packet. If it doesn’t, we’ll tell you that too, for free.
Appeal attorneys and appraisers do this analysis by hand — and typically take a percentage of your savings, often around 10%, every year you appeal. TaxAssessmentIQ uses AI and the City’s own recorded sales to pinpoint an over-assessment directly. Same evidence, none of the recurring cut — a flat, one-time price.
See what’s in your appeal packet
Appeals are won on comparable sales. We pull the strongest recent sales of similar homes near you from the City’s own records and show that your assessment sits above them. Here’s an example of the evidence exhibit you get:
| Comparable sale | Sold | Price | Sq ft | $/sq ft | Distance |
|---|---|---|---|---|---|
| S 20th St | Mar 2025 | $315,000 | 1,080 | $292 | 0.08 mi |
| Watkins St | Jan 2025 | $305,000 | 1,120 | $272 | 0.12 mi |
| S Bancroft St | Nov 2024 | $299,000 | 1,050 | $285 | 0.15 mi |
| Titan St | Feb 2025 | $322,000 | 1,150 | $280 | 0.18 mi |
| Reed St | Dec 2024 | $308,000 | 1,090 | $283 | 0.21 mi |
| Your home (example) | assessed | $372,000 | 1,100 | $338 | — |
Median comparable: $283/sq ft. This home is assessed at $338/sq ft — about 19% high, an estimated ~$850/year in tax.
View a full sample report (PDF)Illustrative example. Your packet uses the City’s actual recorded sales for your address, plus a uniformity comparison and the prefilled FLR and BRT forms.
Philadelphia homeowners in South Philly and Northeast Philly are already using TaxAssessmentIQ to appeal their assessments.
Common questions
Could appealing raise my assessment?+
It's possible — an appeal can end in a decrease, no change, or, rarely, an increase. We only recommend filing when recent comparable sales clearly point to a lower value, and our guarantee means if the evidence isn't there, you pay nothing.
Is this legal or tax advice?+
No. TaxAssessmentIQ is an informational tool built from public records. You file your own appeal, in your own name — we never represent you before any board or agency.
What if I lose?+
Your current assessment simply stands — you're no worse off than before, aside from postage and a few minutes.
Where do your numbers come from?+
The City of Philadelphia's own Office of Property Assessment public data and recorded sales — the same records the City uses to assess you.
What if my home isn't over-assessed?+
We tell you, for free, before you pay anything. Most owners we check, we recommend not filing.
How does it work, start to finish?+
Enter your address for a free verdict. If it's worth it, get your ready-to-file packet, then print it, sign it, and mail it before the deadline. The City mails its decision in the fall.
Why we built this
TaxAssessmentIQ is built by ALKARTIS, a civic-data company that turns cities’ own public records into clear, actionable intelligence. The old way to challenge an assessment is to pay an attorney or appraiser a slice of your savings to do it by hand. We use AI and the City’s own data to pinpoint an over-assessment directly — a plain answer and a ready-to-file appeal, for a flat, one-time price.
Every figure comes from Philadelphia’s own OPA data — no opaque “proprietary score.”
Modern models do in seconds what used to take an appraiser hours.
You file the appeal yourself, in your own name. We never represent you.
— The team at ALKARTIS
Live in Philadelphia today — expanding to more cities.