How Much Can a Landlord Raise Rent?

Rent Control and Rent Stabilization: Know Which Rules Apply

The first question is not how much you want to raise rent, but how much the law permits. Rules fall into three broad categories: no local cap (you can raise to market rate), rent stabilization (annual increases capped at a fixed percentage or CPI formula), and full rent control (strict caps, often tied to building age or tenant occupancy date).

In the United States, roughly 200 cities and counties have some form of rent control or stabilization, concentrated in California, New York, New Jersey, Oregon, and Washington D.C. Canada's provincial rules vary sharply: Ontario caps increases for most units built before November 2018 (the 2026 guideline is 2.5%), while Alberta and Saskatchewan have no provincial cap at all.

Before you draft a rent increase notice, look up your specific city or county. A statewide or provincial law may allow increases that a local ordinance blocks. Revun's state and province law directory at /laws/ keeps summaries current so you can check the rules without hunting through government websites.

• No cap states/provinces (examples): Texas, Florida, Georgia, Alberta, Saskatchewan
• Capped states/provinces (examples): California (5% + CPI, max 10%), Oregon (7% + CPI, max 10%), Ontario (2.5% for 2026)
• Exempt units in capped markets: newly built units, single-family homes in some states, condos, short-term rentals

How Much Notice Do You Have to Give?

Even where no cap exists, landlords must give written notice before a rent increase takes effect. The required notice period is almost always tied to how the tenant pays rent and how long they have lived in the unit.

A general baseline: 30 days notice for month-to-month tenants in most US states, 60 days if the increase exceeds 10% in California or Washington, and 90 days in Ontario. Always check local rules because some cities layer additional requirements on top of state or provincial law.

Notice must typically be delivered in writing, either hand-delivered, mailed with a certificate of mailing, or sent by email if your lease allows electronic notice. A text message rarely qualifies. Keep a copy of every notice in your records.

• 30 days: standard minimum in most US states (month-to-month)
• 60 days: California and Washington when the increase exceeds 10%
• 90 days: Ontario, British Columbia (3 full rental-payment periods)
• Fixed-term leases: increases generally cannot take effect until the lease renews

How to Calculate a Fair and Competitive Increase

Just because you can raise rent does not mean any amount makes financial sense. A 15% jump might be legal but could cost you a reliable tenant, triggering a vacancy, turnover repairs, and a month of lost income that wipes out years of the higher rent.

A practical approach is to anchor your increase to one or more real benchmarks: local CPI (the same index most rent stabilization formulas use), comparable units currently listed in your market, and your own cost increases such as property taxes, insurance, and maintenance. Aim to stay within 3 to 8 percent in most markets unless your rent is significantly below market.

Revun's rent-to-income calculator at /tools/rent-to-income-calculator/ lets you cross-check a proposed rent against typical tenant income thresholds, which helps you price to attract qualified applicants rather than price yourself out of your own market.

• CPI anchor: the US Bureau of Labor Statistics and Statistics Canada publish monthly regional CPI figures
• Market comp check: pull 5 to 10 active listings for comparable units within a 1-mile radius
• Break-even math: factor in your actual cost increases before setting a number
• Loyalty discount: consider giving a long-term tenant a slightly lower increase to avoid turnover costs

The Rent Increase Process: Step by Step

A clean process protects you legally and keeps the landlord-tenant relationship professional. Sloppy notice delivery is the most common reason rent increases get challenged.

Follow these steps in order: (1) Confirm whether a cap applies and what the current allowable percentage is. (2) Calculate the new rent. (3) Draft a written notice that states the current rent, the new rent, the effective date, and your contact information. (4) Deliver notice by the method your lease specifies, meeting the required lead time. (5) Log the notice, the delivery method, and the date in your property records.

Landlords managing multiple units often use property management software to automate notice scheduling and store documentation. Revun tracks rent amounts per unit and flags when lease renewal dates are approaching, which is useful when you are managing more than a handful of doors. The platform is free for landlords with one or two units and uses flat per-door pricing as your portfolio grows.

Common Mistakes That Invalidate a Rent Increase

A legally permissible increase can still be unenforceable if the process was flawed. Courts and housing boards consistently side with tenants when landlords skip procedural steps.

The most frequent errors are: raising rent mid-lease on a fixed-term agreement, giving insufficient notice, exceeding the allowable cap in a rent-stabilized building, and failing to provide notice in writing. In some jurisdictions, including New York City and San Francisco, you must also register the increase with a local rent board or the increase has no legal effect.

If a tenant disputes an invalid increase and you try to enforce it, you could face penalties, be required to refund overpaid rent, and in some cases lose the right to apply for future increases. Getting the process right the first time is always cheaper than fixing it later.

• Raising rent during a fixed-term lease: almost never permitted
• Skipping written notice: verbal notice does not count in any US state or Canadian province
• Missing the registration requirement: applies in NYC, San Francisco, and a handful of other cities
• Retaliatory increases: illegal everywhere if triggered by a tenant complaint or repair request