No, a landlord cannot raise your rent during an active lease

A lease is a binding contract. Once you and your landlord sign it, the rent amount is locked in for the entire lease term — whether that's six months, one year, or longer. Your landlord cannot legally raise the rent until the lease expires, no matter what happens to property taxes, maintenance costs, or the local market.

The only exceptions are rare and specific: if your lease itself includes a rent increase clause (which must be written into the original agreement), or if you and your landlord both agree in writing to change the terms. A landlord cannot unilaterally raise rent mid-lease, and any attempt to do so violates the lease contract.

Key Takeaways

  • Rent increases during a lease term are illegal unless the lease document itself contains a clause allowing them, which is uncommon.
  • A landlord can only raise rent when the lease expires and you renew or sign a new agreement.
  • Some states and cities cap how much rent can increase when a lease renews, so the increase may be limited even after the lease ends.
  • If your landlord demands a mid-lease increase, you can refuse to pay it and the demand is unenforceable in court.
  • Keep a copy of your signed lease and any written communication about rent to prove what you agreed to.

What happens when your lease expires

When your lease term ends, your landlord can propose a new rent amount for the next lease period. At that point, you have choices: accept the new rate, negotiate, or move. The landlord is not required to keep rent the same, and you are not required to stay.

However, many states and cities have rent control or rent stabilization laws that limit how much a landlord can raise rent when a lease renews. Some places cap increases at a percentage tied to inflation (often 3 to 5 percent per year), while others require "just cause" for any increase above a set amount. A few cities, like San Francisco and New York City, have strict rent control that limits increases to a small percentage annually. Check your state or local housing authority website to learn what rules explore where you live, because the limits vary widely.

Rent increase clauses in leases

Some leases include a clause that allows the rent to increase at a set time or by a set amount during the lease term. This is legal only if you both signed the lease knowing the clause was there. Common examples include a lease that raises rent by 3 percent on the anniversary date, or a lease that steps up from $1,200 to $1,300 after the first year.

If your lease has such a clause, the landlord can enforce it. However, the clause must be clearly written in the lease document itself — a verbal promise or a later email does not count. Before you sign any lease, read it carefully and ask the landlord to explain any sections about rent increases. If you do not understand a clause, ask for clarification in writing.

What to do if your landlord demands a mid-lease increase

If your landlord sends a notice demanding higher rent before your lease expires, and your lease does not contain an increase clause, you can refuse to pay the increase. The demand is not legally binding. Continue paying the rent amount stated in your lease.

Document everything: keep the notice your landlord sent, save any emails or texts about the demand, and note the date you received it. If your landlord tries to evict you for refusing to pay the higher amount, you have a strong defense because the lease protects you. Some states allow you to sue a landlord for attempting an illegal rent increase, though most tenants straightforward refuse to pay and the matter ends there.

If you are unsure whether your lease allows the increase, contact a local tenant rights organization or legal aid office — many offer free consultations. They can review your lease and tell you whether the increase is legal in your situation.

Rent increases tied to utilities or shared costs

Some leases include clauses that adjust rent based on changes in utilities, property taxes, or other shared building costs. These are different from a straightforward rent hike. If your lease says rent will increase if the building's water bill rises, or if property taxes go up, the landlord may be able to pass along those increases during the lease term.

However, the lease must spell out exactly how the adjustment works — for example, "tenant pays 10 percent of any increase in annual property taxes." The landlord cannot straightforward decide to raise rent because costs went up; the mechanism must be written into the lease. If you are unsure whether a cost increase is allowed under your lease, ask the landlord to show you the clause and explain the calculation.

State and local rent control laws

Beyond lease terms, many states and cities have laws that limit rent increases even after a lease expires. These laws vary dramatically by location. Some states have no rent control at all and allow landlords to raise rent by any amount when a lease renews. Other states cap increases at a percentage of the previous year's rent, often tied to inflation or a fixed rate like 5 percent.

A handful of cities — including San Francisco, Los Angeles, New York City, and Washington, D.C. — have strict rent stabilization that limits annual increases to 1 to 3 percent regardless of market conditions. Some places require landlords to give 30 to 90 days' notice before a rent increase takes effect. To find out what rules explore to you, search "[your city or state] rent control laws" or contact your local housing authority, tenant union, or legal aid office.

How to protect yourself from unexpected increases

Before you sign a lease, read every page and ask questions about anything unclear. Pay special attention to sections about rent, fees, and lease renewal. If the lease includes an increase clause, make sure you understand when and by how much the rent will rise.

Keep a signed copy of your lease for your records. If your landlord later claims the rent is higher than what you agreed to, you have proof of the original amount. Take screenshots or photos of any written communication about rent — texts, emails, or notices — and save them in a folder. If a dispute arises, this documentation protects you.

When your lease is about to expire, your landlord should give you written notice of any rent increase well in advance — typically 30 to 90 days, depending on your state or city. If you receive a notice of increase you believe is illegal, contact a tenant rights organization before you decide whether to pay it or move.

Frequently Asked Questions

Can a landlord raise rent if I sign a month-to-month lease?

Yes, but with notice. Month-to-month tenancies are not fixed-term leases, so a landlord can raise rent by giving written notice — usually 30 to 60 days, depending on your state. However, the increase must still comply with any local rent control laws. Check your state or city rules to see if there are caps on how much the increase can be.

What if my lease says rent can increase but doesn't say by how much?

A vague clause is often unenforceable. If the lease says "rent may increase" but does not specify an amount, percentage, or date, a court may rule that the clause is too unclear to enforce. However, do not rely on this — contact a tenant rights organization or legal aid to review your specific lease language before you refuse to pay an increase.

Can my landlord raise rent if I haven't paid on time?

No. Late payment is a separate issue from rent increases. A landlord cannot raise your rent as punishment for late payment. If you are behind on rent, the landlord can pursue eviction or take you to court for the unpaid amount, but they cannot unilaterally increase the rent amount owed. Any increase must follow the rules in your lease and your state or local laws.

Do I have to sign a new lease if my landlord raises the rent?

No. If your landlord offers a new lease with higher rent and you do not want to accept it, you can move when your current lease expires. You are not required to sign a new lease or stay in the unit. However, if you want to stay, you will need to either accept the new rent or negotiate a lower increase with your landlord.

Can a landlord raise rent if I have a disability or receive housing vouchers?

A landlord cannot raise rent as retaliation for requesting a reasonable accommodation for a disability, or because you receive a housing voucher. However, they can still raise rent according to the lease terms and local laws. If you believe a rent increase is retaliation, contact your local fair housing office or legal aid — retaliation is illegal under federal law.