Prince George's County, MD Property Tax: Rates, Deadlines & Appeals

If you own property in Prince George's County, Maryland, your assessed value comes from the state, not the county, and you have two ways to challenge it: appeal within 45 days of the notice date on your Maryland Department of Assessments and Taxation reassessment notice, or, if your property isn't up for reassessment this cycle, file an annual petition for review by the first working day after January 1, which falls on Monday, January 4, 2027. The county's job is different: it sets the tax rate applied to whatever value the state assigns, and it bills and collects the money. For fiscal year 2027 that rate is $1.00 per $100 of assessed value for the county, plus the state's $0.112 per $100, and the bill is due July 1 with a no-interest grace period through September 30.

How assessments work in Prince George's County

SDAT, not the county, values every parcel of real property in the state using the sales, cost, and income approaches, and every property is revalued once every three years. Prince George's County is split into three rotating reassessment areas: Area 2 was reassessed effective January 1, 2026; Area 3 is next, effective January 1, 2027; and Area 1 follows in 2028. If your property sits in the area being reassessed, SDAT mails a Notice of Assessment and you get 45 days from the notice date to appeal. If you're in one of the other two areas, you can still challenge your value through the annual Petition for Review, due the first working day after January 1. Buyers who close between January 1 and June 30 get a separate 60-day window from the transfer date to appeal. The county's role starts only after SDAT sets the value: the County Council and municipalities set the rates, the Office of Finance's Treasury Division bills and collects, and the local SDAT office in Upper Marlboro handles appeals on Prince George's County notices.

Whether you should appeal

Compare SDAT's new total market value to what your property would realistically sell for today. The appeal concerns that underlying market value, not the phase-in schedule or the tax rate. Pull recent comparable sales in your immediate neighborhood, and document anything that would reasonably lower value: deferred maintenance, a smaller lot than assumed, flooding or foundation issues, or a layout mismatched with county records. If similar neighboring homes assessed noticeably lower per square foot, raise that too. Filing costs nothing at any of the three levels; SDAT explicitly charges no fee for worksheets or appeals, so ignore unsolicited mail offering to file an appeal for a fee. If your evidence is thin or your value already tracks recent sales, an appeal probably isn't worth the hearing time.

Step-by-step how to file

1. Read the notice date carefully. The 45-day clock starts on the date printed on the Notice of Assessment, not the day you open the mail.
2. Gather your evidence. Recent comparable sales, condition photos, and a copy of SDAT's own worksheet for your property (free on request) all strengthen your case.
3. File your appeal. Use SDAT's online assessment appeals portal, or submit the Petition for Review or New Owner Appeal form to the Prince George's County local office in Upper Marlboro if you're filing the annual petition rather than a reassessment appeal.
4. Attend the Supervisor's level hearing. This first level is informal and typically brief, conducted by an assessor designated by the Supervisor of Assessments.
5. Appeal to PTAAB if needed. You have 30 days from the date of the final notice to appeal to the Property Tax Assessment Appeals Board, a panel of local residents appointed by the governor.
6. Appeal to the Maryland Tax Court as a last resort. Due within 30 days of the PTAAB order, this hearing is de novo and requires you to appear in person.

What happens after

Most appeals resolve at the Supervisor's level within a few weeks, with a written notice of the final determination. A reduced value carries forward for the rest of the three-year cycle until the next reassessment, subject to the usual phase-in rules. If you don't appeal further, the Supervisor's decision becomes final once the 30-day PTAAB window closes. Appealing your market value is separate from applying for the Homestead Tax Credit, which caps how much of an assessment increase is actually taxable each year and requires its own one-time application if you haven't filed one for your home.

Local tips

Prince George's County's local Homestead Credit Cap is 3%, meaning the taxable assessment on an owner-occupied home can't rise more than 3% in a single year even if market value jumps higher, tighter than the state's 10% maximum. That cap only applies if you've filed the one-time Homestead application; confirm with SDAT if you're unsure you're on file. Separately, the state's Homeowners' Property Tax Credit (the circuit breaker) caps your bill relative to income, but you must reapply every year, using the prior year's income, by September 1. Property tax is due July 1 and payable without interest through September 30, or split under the state's semiannual schedule: first half by September 30, second half by December 31. Beyond these state-administered programs, Prince George's County may offer additional local credits for seniors, veterans, or long-term homeowners; the county's own tax credit page wasn't reachable during this research, so confirm current local offerings directly with the Prince George's County Office of Finance rather than assume a program is still active.