Montgomery County · County law
5.2%
The maximum rent increase for rent-stabilized units in Montgomery County, Maryland is 5.2% from July 1, 2026 to June 30, 2027.
The maximum annual rent increase allowance for rent-stabilized units, July 1, 2026 – June 30, 2027 (CPI-U 2.2% + 3%).
Formula limit from Montgomery County DHCA.
Each allowance runs July 1 to June 30.
Source: Montgomery County DHCA (Rent Stabilization Increases and Limitations).
| Period | Allowed | Official source |
|---|---|---|
| 2024 | 6% | Montgomery County DHCA |
| 2025 | 5.7% | Montgomery County DHCA |
| 2026 | 5.2% | Montgomery County DHCA |
Recent changes
DHCA's maximum allowable rent increase is 5.2%, in effect until June 30, 2027. Landlords must give a written 90-day notice.
Official source: Montgomery County DHCA: Rent Stabilization: Increases and Limitations ↗
§ 1 · The formula
CPI-U + 3%, max 6%
CPI-U for the Washington-Arlington-Alexandria area + 3%, or a flat 6%, whichever is lower. Unused allowance is banked per unit, but any single increase (allowance + banked) may not exceed 10% of current rent.
Law: Rent Stabilization, County Code ch. 29 (§§ 29-57, 29-58).
§ 2 · Coverage
§ 3 · Timing
Notice: A written 90-day notice is required, delivered by US mail or in person with a signed receipt. Increases only once every 12 months and only at lease renewal or a new lease.
Next change: DHCA sets the next allowance for July 1, 2027 – June 30, 2028.
| Period | Allowed |
|---|---|
| 2025 | 5.7% (CPI-U 2.7%) |
| 2024 | 6% (CPI-U 3.3%) |
§ 4 · Sources
“Maximum allowable rent increase is 5.2% These rates remain in effect until June 30, 2027.”
“a newly constructed unit that has been offered for rent for less than 23 years”
See something out of date? The methodology page explains how we check figures.
§ 5 · Questions
The maximum rent increase for rent-stabilized units in Montgomery County, Maryland is 5.2% from July 1, 2026 to June 30, 2027.
CPI-U for the Washington-Arlington-Alexandria area + 3%, or a flat 6%, whichever is lower. Unused allowance is banked per unit, but any single increase (allowance + banked) may not exceed 10% of current rent.
Newly constructed units offered for rent for less than 23 years. Units owned by a natural person (or a decedent's trust or estate) who owns 2 or fewer rental units in the County. Units under a regulatory agreement (e.g. MPDU).
DHCA sets the next allowance for July 1, 2027 – June 30, 2028.
From Montgomery County DHCA: “Rent Stabilization Increases and Limitations”, which we last checked on October 17, 2026. Always confirm with the agency before relying on it.
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