DC · 2026 appeal calendar

District of Columbia Property Tax Appeal Deadlines 2026.

District of Columbia property tax appeal deadlines and filing windows for commercial real estate. Verify with your local assessor or appeal board for the specific jurisdiction before filing.

Updated May 2026

Verify before filing. Statutory deadlines change, and many counties operate on their own schedule inside the state framework. Always confirm the current year's window with the assessor or appeal board for the specific jurisdiction before relying on a date.

2026 appeal calendar

District of Columbia deadlines at a glance.

State-level deadlines plus major sub-jurisdictions where the schedule diverges from the state default. Where a column says "Varies," confirm the date with the local assessor.

Month Type Event Date Details
Varies BPP
Value Notices Issued
Varies Pay when submitting return
March RP
Value Notices Issued
1-Mar
Varies BPP
Appeal Deadline
Varies 3 year Statute of Limitations for amending returns
April RP
Appeal Deadline
1-Apr

RP = Real Property · BPP = Business Personal Property · Both = Applies to both

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