How much notice does a landlord have to give to raise rent in Washington DC?

Sixty calendar days, and the increase cannot begin until the first day rent is normally paid after those sixty days expire. Section 42-3509.04(b) ties the effective date to a rent day rather than to a count of days, so notice given on 20 January with rent due on the 1st means the increase starts on 1 April. The period was thirty days until November 2023.

Why do some sources say DC requires 30 days?

Because they predate the Fairness In Renting Clarification Amendment Act of 2023, which raised the period from thirty days to sixty with effect from 28 November 2023. A notice relying on the thirty-day figure is short by half. The amendment appears in the statute's history as D.C. Law 25-65, so the current text is the one to check if a landlord disputes the period.

What is the DC rent increase cap this year?

For registered rent-controlled units the allowance for the year from 1 May 2026 is 4.1%, which is CPI-W plus two per cent, subject to a statutory ceiling of ten per cent. Tenants registered as elderly or disabled have a lower cap of 2.1%, calculated as the lowest of the Social Security cost-of-living adjustment, CPI-W, or five per cent. Units built after 1975 and small owner-occupied properties are largely outside rent control.

I am an elderly tenant. Do I automatically get the lower cap?

No. The lower cap applies only once your elderly or disabled status has been registered with the Rent Administrator. An eligible tenant who has never registered receives the standard allowance, which for the year from May 2026 is 4.1% rather than 2.1%. If that describes you, registering is the single most valuable step available, and the Office of the Tenant Advocate can help with it at no cost.

DC Rent Increase Notice, the Cap, and Who Registers

In the District of Columbia a rent increase cannot take effect until the first day rent is normally paid that falls more than 60 calendar days after you were given notice. For registered rent-controlled units the increase is also capped: 4.1% for the year from 1 May 2026, or 2.1% if you have registered as an elderly or disabled tenant.

Two things about that first sentence are easy to miss. The period is 60 days, not the 30 that many sources still give. And it is not a count of days at all.

It is a rent day, not the 61st day

D.C. Code § 42-3509.04(b) ties the effective date to the first day on which rent is normally paid occurring more than 60 calendar days after notice is given. That is a different mechanism from a flat notice period.

If rent falls due on the 1st and you are given notice on 20 January, 60 days expire on 21 March. The next rent day after that is 1 April, so that is when the increase can begin — not 22 March, and not 1 March. A notice that names an earlier date names a date the statute does not permit.

It became 60 days in November 2023

The period was 30 days until the Fairness In Renting Clarification Amendment Act of 2023 raised it. The change took effect on 28 November 2023. A good deal of current writing still says 30 days, and any notice relying on that figure is short by half.

Registering is what unlocks the lower cap

For rent-controlled units the Rental Housing Commission sets the allowance each year. The standard figure is CPI-W plus 2%, with a statutory ceiling of 10% under § 42-3502.08(h)(2)(A). For the year from 1 May 2026 that produced 4.1%.

Elderly and disabled tenants get a lower cap — the lowest of the Social Security cost-of-living adjustment, CPI-W, or 5%, which came to 2.1% — but only if the status has been registered with the Rent Administrator. An eligible tenant who has never registered receives the standard cap. If that describes you, registering is the single highest-value thing on this page.

The cap reaches registered rent-controlled units. Buildings constructed after 1975 and small owner-occupied properties are largely outside it, so the 60-day notice rule may be your whole entitlement.

How the notice must reach you

Service is governed by § 42-3509.04(a): by hand; by leaving it at your business with a responsible person, or at your residence with a person of suitable age and discretion; or by mail, properly stamped and addressed. Filing a rent increase with the Commission is a separate obligation — doing one does not establish the other, so a filed increase that was never properly served has not started your 60 days.

When this needs a lawyer

Get advice if the figure exceeds the published allowance for your unit, if you believe the unit should be registered as rent-controlled and is not, or if the increase followed a complaint. The Office of the Tenant Advocate exists for exactly this and costs nothing.

Sources

D.C. Code § 42-3509.04(a) and (b), read on code.dccouncil.gov, with amendment history recording D.C. Law 25-65 of 28 November 2023; § 42-3502.08(h)(2)(A) for the 10% ceiling and § 42-3502.05 for rent control. Annual percentages are published by the Rental Housing Commission. Verified November 2026. A claim that a 2026 Act lowers the ceiling from 10% to 6% circulates but was not confirmed and is not relied on here. This is general information, not legal advice about your tenancy.

The District is one of four places that cap the amount rather than just the notice — how all 51 compare. Maryland next door caps nothing statewide but Montgomery County does, and California caps by formula.

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