How to Appeal Your Property Tax in District of Columbia
District of Columbia homeowners can appeal their property tax assessment if they believe it's too high. This guide covers the 2026 appeal deadline, required evidence, and step-by-step process.
2026 Appeal Deadline: April 1
Don't miss your window. Missing the deadline means waiting another full year.
How District of Columbia Assesses Property
District of Columbia assesses residential property at 100% of market value.
DC assesses property at 100% of estimated market value.
The Appeal Process
Appeals are heard by the Real Property Tax Appeals Commission. An informal review is available before filing a formal appeal.
Office of Tax and Revenue (Informal)
Real Property Tax Appeals Commission
Superior Court
District of Columbia Appeal Deadline
What Overassessment Costs District of Columbia Homeowners
The median home in District of Columbia is worth $635,000. If your assessment is just 10% too high, you may be overpaying:
~$356/year
Effective tax rate: 0.56% · Median value: $635,000
Check Your District of Columbia Assessment
Enter your address to see your estimated overassessment and District of Columbia filing deadline.
District of Columbia Counties
County-specific appeal guides coming soon for:
Property Tax Appeal Resources
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7 companies compared — pricing, coverage, and pros/cons for 2026.
2026 Appeal Deadlines
Every state's deadline, filing method, and what happens if you miss it.
Assessment Ratios by State
Every state's assessment percentage — from 4% to 100% — with worked examples.
9 Ways to Lower Your Property Taxes
From homestead exemptions to formal appeals — every method that works.
Savings Calculator
Check if you're overassessed — enter your assessed value to see potential savings.