Chester County property taxes: how your assessment becomes a tax bill
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Explainer video with captions. (Draft for review.)
Chester County's factor: 3.27
Chester County assessments are based on 1998 values. To bring an assessment up to today's market, the state publishes a factor for each county. For Chester County it's 3.27, for appeals filed July 1, 2026 – June 30, 2027.
Worked example
A home assessed at $200,000 × 3.27 = $654,000. That's the value the county taxes it as if it's worth. If the home would sell for about $570,000, a fair assessment would be about $570,000 ÷ 3.27 ≈ $174,312. At New Garden Twp's rates, that difference is about $1,142 a year, every year.
Illustration only, at a typical sale price for the county; the Board uses the state's unrounded figure, so exact results differ slightly.
Filing facts for Chester County
General information from the county's published rules, not legal advice. Check the county's current rules before you file.
| Where | Chester County Board of Assessment Appeals · official page |
|---|---|
| Deadline | Annual appeals are accepted May 1 through the first business day in August (Monday, August 2, 2027) on the county's printed form. File as soon as you're ready from May 1; the deadline is the last day, not the target. |
| Filing fee | $25 for a residential property. |
| How to file | On the county's printed appeal form. |
| Evidence copies | 3 copies of your evidence at the hearing. |
| Hearing | You (the owner) attend the hearing; only a PA-licensed attorney may represent you. Option 2 hearings are in person in West Chester; the written Option 1 has no hearing. |
| Look up your assessment | Chester County property records |
Services in Chester County
Complete Tax Savings Analysis
$19.99
Your full numbers, emailed: taxes by taxing authority, yearly savings at your value (plus 5- and 10-year totals), your county's deadline, and deadline reminder emails.
DetailsThe Playbook for your county
$99.99
A step-by-step guide, with short videos, to handling your own appeal through your county's process: checking your numbers, filling out the application, finding recent sales of homes like yours, hearing day and what comes after.
DetailsStrongest evidence: an appraisal
Free referral
We'll email you names of PA-certified appraisers who work in your county; you hire and pay the appraiser directly. In Chester County, the written option (Option 1) needs an appraisal; comparable sales are presented at a hearing.
We don't appraise your home or give an opinion of its value. If you choose it, our calculator uses a third-party automated estimate (a computer model, not an appraisal); you decide your own opinion of value and state it to the Board. Automated estimates never go on anything you file with the Board. PA Tax Crushers and our broker are not attorneys and do not provide legal advice or represent you in your appeal.