Unincorporated Montgomery County · Rent increases

How much can my rent go up in Unincorporated Montgomery County?

5.2% a year, if your building is rent-controlled.

Why, and the exact law
From Montgomery County Code §§ 29-57, 29-58, read Oct 6, 2026.
Show the law

“All rent increases scheduled to take effect on or after July 1, 2026, cannot exceed 5.2% …”

Montgomery County Code §§ 29-57, 29-58 · montgomerycountymd.gov

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Who can help

  1. USA.govUSA.gov
Every rule here, word for word (1)

State law applies here too. Where both cover a rental, the stricter city rule usually wins; each rule below says so.

Unincorporated Montgomery County lawDepends on the building

Montgomery County Rent Stabilization

How much can my rent go up?

Max 5.2% until Jun 2027.

Rent can go up once per 12 months, with 90 days' written notice.

Depends on the year the building was built.

Who it covers

  • Not buildings less than 23 years old.
  • Covers: County-licensed residential rental units at least 23 years old (23 years old on January 1 of the 23rd year after SDAT Year Built).
  • Exemptions: Newly constructed units offered for rent under 23 years; natural-person/decedent-trust owners of 2 or fewer rental units in County; regulatory-agreement income-restricted units (e.g., MPDU); substantially renovated within 23 years; licensed treatment facilities; 501(c)(3) shelters; owner-occupied group houses; religious facilities; transient lodging; ADUs; school dormitories; licensed assisted living/nursing homes. Gaithersburg, Rockville, Takoma Park, Barnesville and Laytonsville are not covered. Properties on the Troubled or At-Risk Properties Report may not raise rent until removed.
In force since
Jul 1, 2026
Figure period
until Jun 2027
The law, word for word

“All rent increases scheduled to take effect on or after July 1, 2026, cannot exceed 5.2% …”

Montgomery County Code §§ 29-57, 29-58 · montgomerycountymd.gov · Retrieved Oct 6, 2026

More about Unincorporated Montgomery County

Rental law by cityWhat's changing in Unincorporated Montgomery County

Information about the law, not legal advice.