Rent Increase Notice Calculator by State

How rent increase notice rules work

Most US states require landlords to give a tenant 30 days written notice before raising rent on a month-to-month tenancy. A growing set of states (and California in particular) require longer notice (60 or 90 days) when the increase is large, typically defined as greater than 10 percent. The notice must be in writing, delivered before the rent due date that begins the new term, and follow the state's specific delivery method requirements where they exist.

The two statewide rent caps

California and Oregon are the only two states with statewide rent-increase caps. California's AB 1482 (Cal. Civ. Code § 1947.12) caps annual increases at 5 percent plus local CPI, capped at a hard 10 percent. Oregon's law caps at 7 percent plus CPI. Both exclude newer construction (typically housing built within the last 15 years) and single-family homes owned by individuals (not LLCs or corporations). New York City, San Francisco, Berkeley, Los Angeles, and Santa Monica have stricter local rent-control ordinances on top of any state rule.

How to deliver a rent increase notice

Most states accept written notice delivered by hand, mail, or email if the lease permits electronic notice. Some require certified or registered mail, and California requires personal service or first-class mail with a 5-day extension if mailed. Document delivery (receipt, certified mail return card, signed acknowledgment) and keep a copy in the lease file.

How to use this calculator

Pick your state, enter the current and proposed rent, and select the intended effective date. The calculator returns the required notice period (with any large-increase override), the earliest legal effective date, and a flag if the increase exceeds a statewide cap.

Common mistakes

Three patterns produce most disputes. Sending notice less than the statutory minimum and trying to enforce the new rent anyway (invalid). Sending notice by a method the lease or statute doesn't permit (invalid in some states). Increasing rent beyond a statewide or local cap and treating any tenant objection as a default (creates statutory damage exposure).

Frequently asked questions

How much notice must a landlord give to raise rent?

Most US states require 30 days written notice for a month-to-month rent increase. A growing set require 60 days (and California 90 days) when the increase exceeds 10 percent. The notice must be in writing and delivered before the new rent term begins.

Is there a cap on how much a landlord can raise rent?

Statewide caps exist in only two states: California (5% + CPI, capped at 10% annually under AB 1482) and Oregon (7% + CPI). New York City, San Francisco, Berkeley, Los Angeles, and Santa Monica have stricter local rent-control ordinances. Most other states have no statutory cap on increase amount.

What's the difference between 30 days and 60 days notice?

30 days is the default in most states for any rent increase on a month-to-month tenancy. 60 days kicks in when the increase exceeds a threshold (typically 10 percent) in states like California, Oregon, and several others. California extends to 90 days for increases above 10 percent.

What happens if a landlord gives less than the required notice?

The increase is not enforceable for that term. The tenant continues to owe only the previous rent amount until the landlord re-issues a valid notice and the new statutory window passes. Some states also award statutory damages for invalid increase notices.

Can rent be raised during a fixed-term lease?

Generally no. A fixed-term lease (12-month, etc.) locks in the rent for the term. Rent increases typically apply only at lease renewal or on month-to-month tenancies after a fixed term expires.

Are there local ordinances that change the rules?

Yes. Cities including New York City, San Francisco, Berkeley, Oakland, Los Angeles, Santa Monica, and Saint Paul have rent stabilization or rent control ordinances that impose stricter caps and notice rules than state law. Always check both state and local rules.