Is Your York County Property Tax Bill Right? How to Check and Appeal

Your York County tax bill is your assessed value times the county, municipal and school millage, and that assessed value still comes from the 2006 reassessment. To check it, divide the assessment by the current common level ratio of 48.7 percent to see the market value the county is implying, compare that to what homes like yours actually sell for, and if it is high, file an appeal with the Board of Assessment Appeals on or before August 1.

Most owners never look at the assessment behind the bill. The county produced those numbers at scale twenty years ago and has been carrying them forward with a ratio ever since. Errors in the record, and homes that simply have not kept pace with the county's implied value, are both common and both fixable. Here is the process I walk clients through.

How is a York County property tax bill calculated?

Assessed value times millage, three times over. York County's current assessments are based on 100 percent of market value as of July 1, 2004, from the reassessment that took effect January 1, 2006. Each taxing body then sets its own millage (one mill is $1 per $1,000 of assessed value). For 2026-2027 the county rate is 7.55 mills everywhere; the municipal and school rates depend on where you live. Two examples from the county's 2026-2027 millage list:

Where	County	Municipal	School	Combined
York Township (Dallastown Area SD)	7.55	1.40	25.6861	34.6361
City of York (York City SD)	7.55	18.97	37.6824	64.2024

A York Township home assessed at $151,000 pays $151,000 x 0.0346361, or about $5,230 a year, split across the county and township bills mailed around February 15 and the school bill mailed around July 1.

How do I pull my assessment record?

Search the county's public property records site by owner, address or parcel ID. Check the basics against your house: square footage, bedroom and bath count, whether the basement is listed as finished, garage, outbuildings, lot size. A phantom half-bath or a "finished" basement that is bare block inflates the value every year until someone corrects it. If you find a factual error, call the Assessment Office at 717-771-9232 (28 East Market Street, Room 105, York, weekdays 8 to 4:30) before you do anything else, because a record correction is simpler than a valuation appeal.

What is the common level ratio and how do I use it?

The common level ratio is the state's annual measure of how York County's 2006-era assessments compare with current sale prices, and it converts your assessment into an implied market value. The State Tax Equalization Board certified the 2025 ratio for York County at 48.7 on May 20, 2026, and the county lists 48.70 as the ratio in effect as of July 1, 2026. (The Department of Revenue publishes the same number upside down as a factor of 2.05 for realty transfer tax.) The math:

• Assessment of $151,000 divided by 0.487 = about $310,000 of implied market value.
• Compare that to real sales. The RAYAC median sale price in York County for January through August 2026 was $309,900, and the Dallastown district median was $320,000.
• If comparable homes on your street are closing well below your implied value, you may be over-assessed. If they close above it, leave it alone.

Going the other direction, the Board's own example is $175,000 of market value times 0.4870 = $85,225 of assessed value.

How do I appeal a York County assessment?

File the county's appeal form with the Assessment Office, hand-delivered or postmarked on or before August 1, with the fee. The Board's rules are specific:

1. The fee is $25 per parcel for owner-occupied residential property (checks only, payable to County of York, non-refundable). Other residential is $50 and commercial is $125.
2. Faxed appeals are not accepted. Rescheduling a hearing costs $25.
3. The burden of proving the assessment wrong is on you. Only you or a Pennsylvania certified appraiser can testify to market value at the hearing.
4. If you use an appraisal, it must reach the Assessment Office at least 14 calendar days before the hearing; otherwise file the "No Appraisal Option" form, or the Board can declare the appeal abandoned.
5. Bring closed comparable sales, photos of anything that hurts value, and the record errors you found.

Whether a $400 to $600 appraisal is worth it depends on the gap. On a $5,230 bill, a 10 percent cut in assessed value saves about $523 a year, every year, so a real over-assessment pays for the appraisal quickly.

Am I enrolled in the Homestead Exclusion?

Check your school tax bill for a homestead reduction line; if it is not there and you live in the house, apply. The Homestead and Farmstead Exclusion lowers the assessed value used for school taxes on an owner-occupied primary residence. York County's form must be filed with the Assessment Office on or before March 1 to take effect for the school year beginning that July 1, and you do not need to re-file if you have filed within the preceding three years. The school district must notify you by December 31 if your property is not approved. Plenty of buyers were never signed up, and the form is one page.

Want a gut check before you spend $25 and a morning at the Administrative Center? Send me your address and I will tell you honestly whether the assessment looks high, low or about right, because comparable sales are what I do all day. Call or text me at 717-356-9413. This is general information, not legal or tax advice.