All Laws Decoded

The Homestead Exemption in District of Columbia

Who qualifies for the District of Columbia homestead property tax exemption, how much it saves, and how and when to apply.

Short answer: The Homestead Deduction reduces a home's assessed value by $91,950 for tax year 2026 before the tax is computed (OTR estimates a $781.58 annual saving). DC Office of Tax and Revenue, Real Property Tax Reliefs, Credits and Deductions

Homestead exemptionThe Homestead Deduction reduces a home's assessed value by $91,950 for tax year 2026 before the tax is computed (OTR estimates a $781.58 annual saving). The property must be residential, occupied by the owner/applicant as a principal residence (domicile), and contain no more than five dwelling units including the owner's unit; an application must be on file with the Office of Tax and Revenue.
How to applyApply online through MyTax.DC.gov using Form ASD-100 (no login required); if you cannot apply online, call 202-727-4TAX (4829) to request a waiver. The same application covers the Homestead Deduction and Senior Citizen/Disabled Tax Relief; cooperative owners apply through their cooperative's management. To show DC domicile, OTR suggests a DC driver's license or ID, DC vehicle registration, DC voter registration and tax returns using the property address. If the property stops qualifying, request cancellation on MyTax.DC.gov (Form ASD-105) within 30 days. A denied application may be appealed online within 45 days.
Flyer: https://otr.cfo.dc.gov/sites/default/files/dc/sites/otr/publication/attachments/Homestead%2C%20Senior%20and%20Disabled%20Tax%20Relief%20Flyer.pdf
Application deadlineThere is no single cutoff: an application filed and approved between October 1 and March 31 gets the benefit for the entire tax year; one filed between April 1 and September 30 gets half the benefit, on the second-half tax bill.
Limits on assessment increasesAssessment Cap Credit: a homestead property may not be taxed on more than a 10% increase in assessed value each year. Owners receiving both the Homestead Deduction and Senior/Disabled Tax Relief are limited to a 2% increase in taxable assessed value. The cap credit is applied automatically to qualifying properties.

More District of Columbia property tax & homestead exemptions

FAQ

What is the homestead exemption in District of Columbia?
The Homestead Deduction reduces a home's assessed value by $91,950 for tax year 2026 before the tax is computed (OTR estimates a $781.58 annual saving). The property must be residential, occupied by the owner/applicant as a principal residence (domicile), and contain no more than five dwelling units including the owner's unit; an application must be on file with the Office of Tax and Revenue.
How do you apply for a homestead exemption in District of Columbia?
Apply online through MyTax.DC.gov using Form ASD-100 (no login required); if you cannot apply online, call 202-727-4TAX (4829) to request a waiver. The same application covers the Homestead Deduction and Senior Citizen/Disabled Tax Relief; cooperative owners apply through their cooperative's management. To show DC domicile, OTR suggests a DC driver's license or ID, DC vehicle registration, DC voter registration and tax returns using the property address. If the property stops qualifying, request cancellation on MyTax.DC.gov (Form ASD-105) within 30 days. A denied application may be appealed online within 45 days.
When is the deadline to apply for a homestead exemption in District of Columbia?
There is no single cutoff: an application filed and approved between October 1 and March 31 gets the benefit for the entire tax year; one filed between April 1 and September 30 gets half the benefit, on the second-half tax bill.
How much can a home's assessed value go up each year in District of Columbia?
Assessment Cap Credit: a homestead property may not be taxed on more than a 10% increase in assessed value each year. Owners receiving both the Homestead Deduction and Senior/Disabled Tax Relief are limited to a 2% increase in taxable assessed value. The cap credit is applied automatically to qualifying properties.

General legal information, not legal advice. Laws change and local rules can differ; check the linked official source or talk to a lawyer about your situation.