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Rent increase letter template: friendly and formal versions that keep good tenants

Two copy-paste rent increase letters, a friendly version and a formal notice, plus the three numbers that make the increase valid.

5 min read

A rent increase letter does two jobs at once. It is a legal notice, so it needs the old amount, the new amount, an effective date, and proof it was delivered. It is also a message to a person who has paid you every month, so the wording decides whether they stay at the new rate or start browsing listings that night. Most templates handle the first job and botch the second. Here are two versions that handle both.

This page covers the standalone increase: a rent change on a month-to-month tenancy, or one a lease escalation clause already permits. If the raise arrives bundled with a renewal offer, a new fixed term at a new rate, send a lease renewal letter instead; that is a different conversation and a different letter.

This is not legal advice. Notice periods, delivery methods, and caps on increases are set by your state and sometimes your city, and rent-controlled or rent-stabilized units have their own rules entirely. Read your state's landlord-tenant statute and any local ordinance before you set an effective date.

Letter 1: the friendly increase

Use this version for the tenant you want to keep. It gives generous warning, puts the numbers up front, and includes the one sentence that answers the question every tenant silently asks: why. The honest answer is usually some mix of property taxes, insurance, and maintenance costs, and naming the real drivers reads better than silence. The other sentence doing quiet work is the comparison to nearby units, which reframes the increase as the discount it usually is. Send it 45 to 60 days before the effective date even where 30 is the legal floor; the extra runway is what keeps it friendly.

Letter 1: friendly rent increase (the tenant you want to keep)

[Date] Hi [Tenant first name], I want to give you plenty of notice about an upcoming change. Starting [effective date], the monthly rent for [property address, unit] will go from $[current rent] to $[new rent], an increase of $[difference]. Since your tenancy began, my costs on the property have risen, mainly [property taxes / insurance / maintenance: name the real ones]. This adjustment covers part of that while keeping your rent at or below what comparable units nearby are renting for. You have been a great tenant and I would like to keep you here for a long time. Everything else stays the same: rent is still due on the [due day] and paid the same way. If you have questions or want to talk it through, call or text me at [phone]. Thanks, [Your name] [Phone / email]

Letter 2: the formal notice of rent increase

Use the formal version when the relationship is thin, when the increase is large, when your statute or city requires specific written notice, or whenever you would rather hold a notice than a note. It states the change, confirms every other term stays the same, asks for written acknowledgment, and records how it was delivered. Nothing in it is hostile; it is the difference between a handshake and a receipt. If the increase is ever disputed, the dated copy is the document the question turns on.

Letter 2: formal notice of rent increase

[Date] [Tenant name(s)] [Property address, unit number] [City, State ZIP] Re: Notice of rent increase, effective [effective date] Dear [Tenant name], This letter is formal notice that the monthly rent for [property address, unit number] will increase from $[current rent] to $[new rent] per month, effective [effective date]. This notice is being delivered at least [number] days before the effective date, as required by your rental agreement and applicable law. The new rate first applies to the rental period beginning [effective date]. All other terms of your tenancy remain unchanged, including the rent due date, accepted payment methods, and your security deposit. If you do not wish to continue the tenancy at the new rate, please provide written notice of your intent to vacate as your agreement and state law require. Please reply in writing, or sign and return the enclosed copy, to acknowledge receipt of this notice. [Your name] [Phone / email] [Mailing address] Delivered by [hand delivery / first-class mail / certified mail, as your lease and state law allow] on [date]

The three numbers that make the letter valid

  • The notice period. For month-to-month tenancies, 30 days of written notice is the most common minimum, and a growing number of states require 60 or 90 days for larger increases or longer tenancies. The clock typically runs from the day the tenant receives the notice, not the date typed at the top, and many statutes require the new rate to begin on a new rental period. During a fixed term the rent generally cannot change at all unless the lease says so; that gap is a real tradeoff in month-to-month vs fixed-term leases.
  • The amount. Say the rent is $1,500 and comparable units list at $1,650. A $50 to $75 step holds the tenant and most of the gap; jumping the full $150 in one letter invites a move-out that costs more than the difference. How much to raise rent works the math, including the year a raise loses money.
  • The effective date. Land it on the first day of a rental period, almost always the 1st. An increase effective mid-month forces a prorated charge, confuses autopay, and gives the tenant a reason to underpay honestly.

Mistakes that void the increase or lose the tenant

  • Counting notice from the wrong day. A notice dated the 28th, mailed the 30th, and received the 3rd may miss a 30-day window you thought you cleared. Short by two days can push the increase back a full rental period.
  • Raising rent by text alone. A text is a fine heads-up, but the letter is the record. Deliver it a way you can prove later, and keep a dated copy with a note of how it went out.
  • Catching up five flat years in one jump. A $200 correction after years of silence reads as a push-out, and the vacancy it triggers usually erases the first year of the gain. The arithmetic is laid out in what turnover really costs.
  • Bundling other changes into the same letter. A new pet policy or late-fee clause stapled to an increase muddies what the tenant agreed to. One purpose per notice.

After the letter goes out

The new number has to land in your books, not only in the mailbox. Update the tenant's rent wherever you track payments, so the first charge at the new rate is for the right amount; a rent roll is the minimum version of that system, and the full setup lives in the rent collection guide. I built rents.ai because my spreadsheet kept dropping changes exactly like this one: each tenant carries a lease countdown that flags tenancies inside 90 days so the letter goes out with room to spare, the sent letter attaches to the tenant's file next to the lease, and once you update the rent, the rent roll generates the next charge at the new amount. It will not draft the letter, look up your state's notice period, or deliver anything to your tenant; serving notice stays your job. A tenant can absorb a number they saw coming. It is the surprise they move out over.

Questions landlords actually ask

Can a landlord raise rent in the middle of a lease?
Generally no. A fixed-term lease locks the rent for the whole term unless the lease itself contains an escalation clause that spells out the change in advance. On a month-to-month tenancy you can raise it with proper written notice, which is what the letters above are for.
How much notice do I have to give before raising rent?
For month-to-month tenancies, 30 days of written notice is the most common minimum, and some states require 60 or 90 days for larger increases or longer tenancies. The clock usually runs from when the tenant receives the notice, and many statutes require the new rate to start on a new rental period. Read your state's statute and any local ordinance before setting the effective date.
How much should I raise rent on a good tenant?
Small and regular beats large and rare: annual increases in the 2 to 5 percent range keep pace with costs without triggering a move-out, while a big catch-up after years of flat rent often costs more in turnover than it recovers. Weigh the extra dollars against one month of vacancy plus make-ready costs before you pick the number.