DC Homestead Deduction: How to Apply and How Much You Save

Property taxes in Washington, D.C. are low by regional standards — just $0.85 per $100 of assessed value for residential Class 1 properties. But that rate applies to your full assessed value unless you've applied for the homestead deduction, which knocks a fixed amount off your taxable assessment each year.

For Tax Year 2026, the deduction is $91,950. On a $600,000 assessed home, that reduces your taxable value to $508,050 — saving roughly $781 annually compared to paying taxes on the full assessment. Over 10 years, that's nearly $8,000. And that's before factoring in the assessment cap, which comes bundled with the deduction.

Here's what the deduction actually does, how to qualify, how to file, and the math that matters.

What the Homestead Deduction Does

The D.C. Homestead Deduction is a statutory provision administered by the D.C. Office of Tax and Revenue (OTR). It reduces the taxable assessed value of your primary residence by a set dollar amount each tax year, directly lowering your annual real property tax bill.

The deduction amount adjusts annually. For context:

• Tax Year 2025: $89,850 deduction
• Tax Year 2026: $91,950 deduction

The tax calculation works like this: take your property's assessed value, subtract $91,950, and apply the 0.85% Class 1 rate to the remainder.

Example for a $700,000 assessed home in Tax Year 2026:

• Assessed value: $700,000
• Minus homestead deduction: $91,950
• Taxable value: $608,050
• Annual property tax at 0.85%: $5,168.43
• Without deduction, the tax would be: $5,950
• Annual savings: $781.57

The Assessment Cap Credit: The Deduction's Hidden Partner

Receiving the homestead deduction automatically enrolls you in the Assessment Cap Credit, which may matter more over time than the deduction itself.

The cap restricts the annual increase in your taxable assessed value to 10%, regardless of how quickly the broader market appreciates. In a rapidly gentrifying neighborhood where assessed values are climbing 15–20% per year, this cap is the difference between keeping your home financially viable and being taxed out of it.

The cap resets if you sell and the new buyer applies for the deduction — they get a fresh start at the full assessed value. But for as long as you own and occupy the property, you're protected from runaway annual tax increases.

Who Qualifies

The DC homestead deduction has three eligibility requirements:

1. You must be the record owner of the property. The property must be titled in your name (or a revocable living trust where you're the grantor and beneficiary — the OTR accepts trust ownership for homestead purposes).

2. The property must be your principal place of residence. You must actually live there — this is not available for rental properties, investment properties, or vacation homes.

3. You must not have the homestead deduction on another property in D.C. The deduction is limited to one property per owner in the District. If you own multiple D.C. properties, only your primary residence qualifies.

There is no income limit for the standard homestead deduction. It's available to all qualifying owner-occupants regardless of earnings.

How to Apply: Filing the ASD-100

You apply using Form ASD-100, officially called the "Homestead Deduction, Senior Citizen, and Disabled Property Owner Application." Despite the name, you don't need to be a senior or disabled to apply — Part A of the form covers the basic homestead deduction.

Where to file: You can submit the form:

• Online through the OTR's Real Property Tax portal at mytax.dc.gov
• By mail to the D.C. Office of Tax and Revenue, Real Property Tax Administration
• In person at the OTR service center

Deadline: To receive the homestead deduction on your first full tax year as an owner-occupant, file by September 1 of the year before taxes are assessed. D.C. real property taxes are assessed annually as of January 1.

For buyers closing mid-year: if you close and file before September 1, you may qualify for a partial credit in the current year, with full application beginning the following tax year. File promptly after closing — don't wait.

What the form asks for:

• Property address and square/lot number (found in your deed)
• Your name and identification
• Certification that the property is your principal residence
• Your Social Security Number (used to cross-reference with other D.C. property records to confirm you don't have the deduction on a second property)

The First-Time Buyer Connection: ROD 11 vs. Homestead Deduction

These are two separate D.C. tax benefits that apply at different times.

Form ROD 11 (First-Time Homebuyer Reduced Recordation Tax) is filed at closing. It's a one-time benefit that cuts your recordation tax from 1.45% to 0.725% on qualifying purchases up to $777,000 (FY2026). Miss it at the settlement table and it's gone permanently — the OTR allows no retroactive filing.

Form ASD-100 (Homestead Deduction) is filed after closing, within weeks of moving in. It's an ongoing annual benefit that continues as long as you occupy the property as your primary residence.

First-time buyers in D.C. are eligible for both. They have nothing to do with each other administratively, but both require proactive filing. Don't rely on the title company or your agent to prompt you on the homestead deduction — it's your responsibility to file.

What Happens If You Don't File

If you purchase a home and skip the homestead deduction application, you pay real property taxes on the full assessed value every year until you apply. There is no retroactive remedy — the OTR won't refund taxes you overpaid in prior years before you filed. The only way to capture the benefit is to apply, and the only way to lose it retroactively is not to apply in the first place.

If you inherit a D.C. property from a family member who had the deduction, it does not automatically transfer to you. You must file a new ASD-100 in your own name once you become the record owner.

What Changes the Deduction Amount

The homestead deduction is indexed to the regional Consumer Price Index and is set annually by the D.C. Council through the budget process. It has increased every year recently (from $88,800 in 2024 to $89,850 in 2025 to $91,950 in 2026). There is no guarantee of future increases, but the trend has been upward.

The deduction amount is the same for all qualifying properties regardless of assessed value. A studio condo assessed at $300,000 and a Capitol Hill rowhouse assessed at $1.5 million both receive the same $91,950 deduction. The proportional tax savings are obviously larger for lower-valued properties.

Senior Citizen and Disabled Owner Enhancements

The same Form ASD-100 also covers two additional benefits:

Senior Citizen Homestead Deduction: Owners aged 65 and older qualify for a doubled deduction — $183,900 in Tax Year 2026 (double the standard $91,950) — provided their gross household income does not exceed $139,900.

Disabled Owner Deduction: Owners with a total and permanent disability who meet the same income threshold ($139,900) receive the same doubled deduction.

These enhanced deductions are claimed on the same form but require additional documentation confirming age or disability status and household income.

How DC Compares Regionally

The homestead deduction is one reason D.C.'s effective property tax rate is often lower in practice than the surrounding suburbs, despite a nominally comparable base rate.

Montgomery County, Maryland has no homestead exemption structure comparable to D.C.'s — it has an assessment cap program, but property values are assessed at full market value from the start, with effective rates around 0.90%. Northern Virginia jurisdictions (Arlington, Fairfax) have effective rates between 0.77% and 1.0% with their own homestead exemptions.

For first-time buyers comparing a D.C. condo against a similarly priced suburban townhouse: run the actual tax math. The D.C. homestead deduction plus 0.85% base rate often produces a lower monthly carrying cost on property taxes than a comparable property 20 minutes away.

For a complete picture of what buying your first home in D.C. costs — including the ROD 11 recordation tax reduction, HPAP and DC Open Doors assistance programs, and closing cost structure — the District of Columbia First-Time Home Buyer Guide covers all of it in one place.

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