Rent Collection

Can landlords increase rent during a lease term?

Missouri rental guidance and tenant-landlord operational information.
Published March 14, 2026 State-specific rental guidance Update This Question
Reviewed by Tenants & Landlords Editorial Team

This rental guidance was reviewed by the Tenants & Landlords Intelligence Team, specializing in lease agreements, notices, rent disputes, deposits, evictions, and tenant-landlord operational procedures.

Asked 80 days ago · Missouri

Can Landlords Increase Rent During a Lease Term in Missouri?

As a landlord in Missouri, understanding when and how you can increase rent during a lease term is essential for maintaining a professional and lawful rental operation. Missouri has specific rules regarding rent increases, especially concerning the terms of a lease agreement and the timing of such increases.

Understanding Lease Terms in Missouri

In Missouri, much of the regulation related to rent increases depends on the type of tenancy established between the landlord and tenant:

  • Fixed-Term Lease: This is a lease agreement with a specified start and end date (e.g., one year). During the period of this lease, the rent amount agreed upon is generally fixed.
  • Month-to-Month Tenancy: After a fixed lease expires without renewal, or if no formal lease is signed, the tenancy is typically considered month-to-month. In this scenario, rent can be adjusted with proper notice.

Can Rent Be Increased During a Fixed-Term Lease?

Missouri law does not specifically prohibit rent increases during a fixed-term lease; however, the lease contract itself governs the terms of rent payment. Generally:

  • No Rent Increase Without Tenant Consent: If you have a lease with a set term, the landlord cannot increase rent until the lease expires unless the lease agreement explicitly grants the landlord the right to do so during the term.
  • Written Lease Terms Control: If the fixed lease mentions a possible rent increase during the lease period (for example, in multi-year leases with annual escalations), the landlord may increase rent according to those provisions.
  • Tenant’s Agreement is Crucial: If you want to raise rent in the middle of a fixed lease, you must obtain the tenant’s written consent to amend the lease terms.

Rent Increases in a Month-to-Month Tenancy

Once the lease expires and the tenant stays without signing a new fixed-term lease, the arrangement turns into a month-to-month tenancy, which is much more flexible regarding rent adjustments:

  • Notice Requirement: Missouri landlords must give tenants at least 30 days’ written notice prior to the date the rent increase is to take effect.
  • Effective Date of Increase: The notice must specify when the new rent will begin, typically matching the start of a rental period (e.g., the first day of the next month).
  • No Limit on Amount: Missouri law does not limit how much a landlord can increase rent, provided proper notice is given and the increase is not discriminatory or retaliatory.

Proper Notice of Rent Increase

Providing clear and proper notice is integral to lawful rent adjustments in Missouri:

  • Written Notice: It is best practice to always provide written notice of any rent increase.
  • Timing: For month-to-month tenancies, give at least 30 days’ notice before the increase takes effect. For fixed-term leases, if increases are allowed, follow the lease terms carefully.
  • Delivery Methods: Notices can be hand-delivered, sent by certified mail, or otherwise delivered in a manner that the tenant can confirm receipt.

Other Considerations for Rent Increases in Missouri

When planning rent increases, landlords should consider additional factors:

  • Local Ordinances: Some cities or municipalities in Missouri may have additional regulations regarding rent increases or landlord-tenant relationships. Check local laws to ensure compliance.
  • Avoiding Retaliation and Discrimination: Rent increases should never be used as retaliation or in a manner that violates fair housing laws. Missouri landlords must apply rent increases uniformly and fairly.
  • Lease Renewal Negotiations: Often rent increases are implemented with a lease renewal offer rather than mid-lease changes. This is typically smoother and less likely to lead to disputes.

Summary Checklist for Missouri Landlords on Rent Increases

SituationCan You Increase Rent?Notice Required
During fixed-term lease without lease clauseGenerally no, unless tenant agreesTenant consent required
During fixed-term lease with escalation clauseYes, as specified in leaseFollow lease terms
After lease expiry in month-to-month tenancyYes30 days written notice
At lease renewalYes, negotiation or notice requiredAt renewal or per lease

Best Practices for Increasing Rent in Missouri

  • Review the lease agreement carefully to confirm if mid-lease rent increases are permitted.
  • Communicate transparently with tenants about upcoming rent changes.
  • Provide written and timely notices that adhere to Missouri’s 30-day rule for month-to-month tenancies.
  • Consider the local rental market to keep rent increases reasonable and justifiable.
  • Document all communications regarding rent increases for your records.

In conclusion, Missouri landlords generally cannot increase rent during a fixed-term lease unless specifically allowed in the lease or agreed upon by the tenant. However, once the lease ends and the tenancy becomes month-to-month, landlords can increase rent with at least 30 days' written notice. By following these guidelines and maintaining clear communication and documentation, Missouri landlords can manage rent increases professionally and lawfully.

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