DC Rent Increase Laws: Caps, Notice, and Challenging Increases

Washington, DC rent increase laws cap most annual increases on rent-controlled units at the regional CPI-W plus 2%, with a hard ceiling of 10%. For 2026, that works out to a maximum increase of 4.1% for standard tenants and 2.1% for elderly tenants or tenants with disabilities.¹ The caps only apply to units in the Rent Stabilization Program, and even a legal-sized increase can be voided if the landlord skips the notice, registration, or housing-code requirements that come with it.

Is Your Unit Rent-Controlled

DC’s Rent Stabilization Program, established under the Rental Housing Act of 1985, covers most rentals in the District by default.² If your unit isn’t specifically exempt, it’s covered. The exemptions that catch the most people:

Buildings whose permit was issued after December 31, 1975, or units added under a certificate of occupancy for housing use issued after January 1, 1980.³
Federally or District-owned housing, and units where the mortgage or rent is subsidized by the federal or District government, including Low-Income Housing Tax Credit properties. These follow their own subsidy formulas.³
Small housing providers with four or fewer rental units, owned by no more than four natural persons who hold no other rental property interest in DC. The owner has to file a claim of exemption with the Rent Administrator.³

Every rental in DC, covered or exempt, has to be registered with the Rental Accommodations Division (RAD). Covered units carry a registration number; exempt units carry an exemption number.⁴ If you’re not sure which category your building falls into, you can check with RAD before assuming the caps apply.

The Standard Annual Cap

For occupied rent-controlled units, the annual increase can’t exceed the CPI-W adjustment of general applicability plus 2%, and it can never top 10% regardless of what inflation does.⁵ The 10% ceiling rarely bites in practice because CPI-W stays well below 8% in most years. In 2026, with CPI-W at 2.1%, the standard maximum is 4.1%.¹

Rent can go up only once every 12 months. The narrow exception: if a unit becomes vacant and is re-rented within 12 months of an earlier increase, the landlord can still apply a vacancy adjustment. Otherwise, the one-per-year rule holds.⁵

Lower Cap for Elderly Tenants and Tenants With Disabilities

If you’re 62 or older, or you live with a disability, your increase is limited to the CPI-W figure alone. There’s no 2% add-on, and the absolute ceiling drops to 5%.⁶ In any year where the Social Security cost-of-living adjustment comes in below CPI-W, the landlord has to use the lower of the two.⁵ For 2026, that puts the effective cap at 2.1%.¹

The catch: you have to register your elderly or disability status with RAD. Without that paperwork on file, the landlord can legally charge the standard rate even when you’d otherwise qualify. If you think you’re eligible, file first and worry about the increase second.

Vacancy Increases

Vacancy is a different regime. When a rent-controlled unit is empty, the annual formula doesn’t apply. Under § 42-3502.13, the housing provider can raise the rent by up to 10%, or by up to 30% to match a comparable unit in the area.⁵ After a vacancy increase is taken, the landlord can’t raise the rent again for 12 months, even if the unit turns over a second time. That’s what stops a landlord from cycling short-term tenants to ratchet the rent upward.⁴

The 60-Day Notice Requirement

Announcing an increase doesn’t make it effective. No rent increase is valid in DC until the first regular rent-due date more than 60 calendar days after the tenant receives written notice.⁷ If rent is due the first of the month and the notice arrives March 15, the earliest date the new rent can apply is June 1, because that’s the first normal due date more than 60 days out.

The notice can be delivered by hand to the tenant or left at the tenant’s place of business with a responsible person, by substitute service to someone of suitable age and discretion at the tenant’s home, or by U.S. mail properly stamped and addressed.⁷ Improper delivery voids the increase. A notice slipped under the wrong door, or never delivered at all, doesn’t count.

What Else the Landlord Has to Do

Correct math and proper notice aren’t enough on their own. Before any increase is legal, the building has to be registered with RAD. A housing provider who fails to register on time can’t implement any increase until the registration is completed and any penalty is paid.³ Registration requires the housing business license number and certificates of occupancy where required.

The unit and common areas also have to be in substantial compliance with DC housing regulations. If the Department of Buildings has issued violation notices for problems like mold, lead paint, or broken essential systems, the Rent Administrator can deny or roll back the increase.⁸ A landlord who lets conditions slide loses the right to charge more until the problems are fixed.

When a Landlord Can Go Above the Cap

Landlords can petition RAD for increases larger than the standard cap, but nothing is automatic. Tenants get notice of the petition, can participate in hearings, and can oppose it.⁴

A hardship petition is available when the property’s rate of return falls below 12%. The Rent Administrator reviews building income and expenses and can approve an increase sized to bring the return up to that threshold. If the approved amount is less than what the landlord conditionally collected, the landlord has to refund the difference within 21 days.⁹

A capital improvement petition lets landlords pass through the cost of major repairs or upgrades that would be depreciable under the Internal Revenue Code. Surcharges are temporary and are removed once costs, interest, and service charges are recovered.¹⁰ And if 70% or more of a building’s tenants agree, they can enter a voluntary agreement setting rents, services, or improvement funding on terms different from the standard rules.¹¹

Challenging an Illegal Increase

If your rent went up in a way that doesn’t match the rules above, you can file a Tenant Petition/Complaint with RAD. Common grounds include:

The increase exceeded the allowable amount.
The landlord didn’t give proper 60-day notice.
The building wasn’t properly registered with RAD.
Required rent increase forms were never filed.
The unit had outstanding housing code violations when the increase took effect.

You’ll need proof of tenancy (rent receipts, canceled checks, or a copy of your lease), a copy of the notice of increase, and four copies of the petition and supporting documents. Petitions go to RAD at the Department of Housing and Community Development, 1800 Martin Luther King, Jr. Avenue SE, Washington, DC 20020. Filing promptly protects your right to a refund of any overcharge.

What the Landlord Faces for a Violation

A landlord who knowingly charges above the legal maximum owes the tenant the excess. If the overcharge was in bad faith, the landlord owes treble damages on the excess.¹²

Civil fines stack on top. Willfully collecting a disapproved increase, making false statements in filed documents, or violating any provision of the Rental Housing Act can bring fines up to $5,000 per violation. Discrimination against elderly tenants or families with children carries the same fine for a first offense and up to $15,000 per violation for repeat offenses. A landlord who frivolously challenges a tenant’s registered elderly or disability status faces liability from 2% to 100% of the unit’s total annual rent, with treble damages available on top.¹²

1
Office of the Tenant Advocate. RHC Publishes New Rent Increase Caps: 2.1% for Elderly/Disability Tenants, 4.1% for Other Rent-Controlled Tenants
2
Rental Housing Commission. Rental Housing Act and Regulations
3
D.C. Law Library. District of Columbia Code 42-3502.05 – Registration and Coverage
4
Department of Housing and Community Development. Rent Control Fact Sheet
5
D.C. Law Library. District of Columbia Code 42-3502.08 – Increases Above Base Rent
6
Rental Housing Commission. Rent Adjustments
7
D.C. Law Library. District of Columbia Code 42-3509.04 – Service
8
D.C. Law Library. District of Columbia Code 42-3502.08(Perm) – Increases Above Base Rent
9
D.C. Law Library. District of Columbia Code 42-3502.12 – Hardship Petition
10
D.C. Law Library. District of Columbia Code 42-3502.10 – Petitions for Capital Improvements
11
D.C. Law Library. District of Columbia Code 42-3502.15 – Voluntary Agreement
12
D.C. Law Library. District of Columbia Code 42-3509.01 – Penalties