Mifflin County property tax appeal 2028: deadline, forms and how to file
To appeal a Mifflin County assessment, file with the Mifflin County Board of Assessment Appeals by mail; in Pennsylvania the deadline is August 1 in most counties (a county may set a date up to September 1), or 40 days after a change-of-assessment notice. Confirm the exact date on your notice or with the assessor; we add each county's 2028 date here when it is published.
Data as of 20 Oct 2026 · Mifflin County Board of Assessment AppealsCheck your own assessment
Free. We compare the value on your notice with recent sales of similar homes nearby and tell you whether an appeal is worth filing. Have your assessment notice and tax bill handy.
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How to file in Mifflin County
- Step 1
File the appeal
Use the method your notice lists, by the deadline on the notice.
- Step 2 · before the hearing
Prepare and submit your evidence
The assessment is presumed correct and you carry the burden of proof. The board decides market value only, not the tax amount or the size of an increase, and values the whole parcel. The strongest evidence is a USPAP appraisal prepared for the appeal, with the appraiser present; otherwise bring about three recent arm’s-length sales of similar nearby homes, your own purchase price or construction cost, and photos or repair estimates. Most boards want copies 5–20 days before the hearing; check the county’s rules.
- Step 3
Meet, then hear
An board of assessment appeals with Mifflin County Board of Assessment Appeals comes first; if you decline the offer, the Mifflin County Court of Common Pleas hears the case. Most reductions happen at the first step.
Before you file: how to read your notice · evidence that works · informal vs formal hearing · when not to appeal
Appeal levels
| Level | Who hears it | Deadline | Cost |
|---|---|---|---|
| Board of Assessment Appeals | Mifflin County Board of Assessment Appeals | The county’s annual deadline (September 1 unless it set an August date); 40 days after a change notice | Set by the county; see its appeal form |
| Court of Common Pleas | Mifflin County Court of Common Pleas | 30 days after the board’s decision is mailed | Court filing fee |
| Commonwealth Court | Commonwealth Court of Pennsylvania | 30 days after the common pleas order | Appellate filing fees |
What evidence the board accepts
The assessment is presumed correct and you carry the burden of proof. The board decides market value only, not the tax amount or the size of an increase, and values the whole parcel. The strongest evidence is a USPAP appraisal prepared for the appeal, with the appraiser present; otherwise bring about three recent arm’s-length sales of similar nearby homes, your own purchase price or construction cost, and photos or repair estimates. Most boards want copies 5–20 days before the hearing; check the county’s rules.
Mifflin County questions
When is the Mifflin County assessment appeal deadline in 2027?
Mifflin County has not published a 2027 date. Under state law the annual deadline is September 1 unless the county sets an earlier date (no earlier than August 1). Check with the Mifflin County Board of Assessment Appeals before August.
How do I appeal my assessment in Mifflin County?
File the county’s appeal form with the Mifflin County Board of Assessment Appeals, Mifflin County Courthouse, 20 North Wayne Street, Lewistown, PA 17044.
What is the common level ratio and why does it matter?
The State Tax Equalization Board publishes each county’s common level ratio: assessed value as a share of market value. The board finds your market value, then applies the county’s ratio, or the common level ratio if the two differ by more than 15%. That is how a market-value argument becomes a lower assessment.
Can my assessment go up if I appeal?
Yes. The board decides the correct value, which can be higher, and school districts and other taxing bodies can join or file appeals. Bring evidence that supports a lower value, ideally an appraisal or recent comparable sales.
How do I contact the Mifflin County Tax Services - Assessment Office?
Mail: Mifflin County Courthouse, 20 North Wayne Street, Lewistown, PA 17044. Phone: 717-248-5783. Hours and walk-in details: mifflincountypa.gov.
Do I keep paying taxes during the appeal?
Yes. Taxes stay due on the appealed assessment. If the value is lowered, the overpayment is refunded with interest (53 Pa.C.S. §8854(c)). A pending appeal also carries over to later years until it is decided.
Check whether yours is over-assessed
Nearby counties
Juniata County · Huntingdon County · Centre County · Perry County · Snyder County · Blair County · Cumberland County
- Mifflin County Assessment
- Mifflin County Tax Services
- 53 Pa.C.S. ch. 88 — Consolidated County Assessment Law (§8844 appeals, §8854 court appeals)
- 1 Pa.C.S. §1908 — Weekend and holiday deadlines
- DCED Tax Equalization Division — Common level ratios
- DCED — STEB / Tax Equalization FAQ
- U.S. Census Bureau, county population estimates (2024) and county gazetteer (2024).