Hawaii Rent Increase 2026: 45-Day Month-to-Month & 15-Day Short-Tenancy Notice
Hawaii law requires 45 consecutive days' written notice before a month-to-month rent increase and 15 consecutive days for a tenancy shorter than month-to-month. Fixed-term leases need a lease-specific review. See how HRS § 521-21 works before serving or relying on an increase.
The short answer
For a Hawaii month-to-month tenancy covered by the Residential Landlord-Tenant Code, HRS § 521-21(d) says the landlord cannot increase the rent without written notice given 45 consecutive days before the effective date of the increase.
For a tenancy that is less than month-to-month, § 521-21(e) uses a shorter rule: written notice must be given 15 consecutive days before the increase takes effect. Hawaii's official landlord-tenant handbook lists week-to-week tenancies under that 15-day starting point. These periodic-tenancy rules should not be applied automatically to a fixed-term lease without reviewing the signed agreement and current law.
Month-to-month rent increases require 45 consecutive days' written notice
The statutory text is specific about both form and timing. For a month-to-month tenancy, the notice must be written and must be given 45 consecutive days before the higher rent becomes effective. The effective date matters; this is not simply a rule to send a notice sometime during the prior calendar month.
Keep a copy of the notice and a reliable record of when it was delivered. When planning the date, count from the proposed effective date and make sure the full statutory notice period is preserved before the new rent is due.
Tenancies shorter than month-to-month use a 15-day rule
HRS § 521-21(e) separately covers a tenancy that is less than month-to-month. In that situation, the landlord must give written notice 15 consecutive days before increasing the rent. The Hawaii DCCA handbook's deadline table identifies week-to-week tenancies as a common 15-day example.
Do not convert the 15-day rule into a general rule for every Hawaii rental. It is tied to the shorter periodic-tenancy category described by the statute; month-to-month tenancies use 45 days, and a fixed-term lease requires its own analysis.
A fixed-term lease should be reviewed separately
Sections 521-21(d) and (e) expressly address month-to-month and shorter periodic tenancies. They do not state that every fixed-term lease uses either 45 or 15 days for a rent change. For a fixed-term rental, review the signed lease, the term ending date, any lawful rent-adjustment or renewal provision, and the current Hawaii Residential Landlord-Tenant Code before changing the rent.
This distinction is important for both landlords and tenants. A periodic-tenancy notice rule should not be used as a shortcut to rewrite an existing fixed-term agreement when the agreement and applicable law do not support that change.
Do not use a termination notice to evade the rent-increase notice period
Hawaii's official Residential Landlord-Tenant Handbook states that a landlord may not give a termination notice for the purpose of evading the required rent-increase notice period. That safeguard matters when the timing of a proposed increase and a proposed termination overlap.
Treat termination and rent-increase notices as separate legal actions with their own requirements. Before serving either one, confirm the tenancy type, the actual purpose of the notice, the applicable timing, and any other current Chapter 521 requirements.
Example: plan from the effective date, not from a rough monthly estimate
Suppose the tenancy is month-to-month and the landlord wants the higher rent to begin on a specific future rent-payment date. Start with that proposed effective date, count back far enough to preserve at least 45 consecutive days, and deliver the written notice with a record of service. Do not assume that 'one month ahead' is the same as 45 consecutive days.
For a week-to-week or other tenancy shorter than month-to-month, the statutory starting point is 15 consecutive days. The same discipline applies: use the actual effective date and preserve the written notice and delivery record.
The 2026 nonpayment-eviction mediation rule is a different issue
Hawaii DCCA currently highlights Act 278, a two-year pilot running from February 5, 2026 through February 4, 2028, for nonpayment-of-rent eviction notices and tenant-requested mediation. That program is important when rent is unpaid, but it does not replace § 521-21's rent-increase notice timing.
Keep the issues separate: a rent increase, a nonpayment notice, and a tenancy termination can each trigger different rules. Use the official source that matches the action being taken rather than borrowing a deadline from a different process.
Use Max Rental Tools after confirming the Hawaii tenancy type
Use the Hawaii state guide and rent-increase calculator to measure the proposed change and organize the relevant dates. For a covered month-to-month tenancy, the current statutory starting point is 45 consecutive days' written notice; for a tenancy shorter than month-to-month, it is 15 consecutive days.
After confirming the tenancy type and lease terms, use the Rent Increase Notice, Lease Renewal Notice, Month-to-Month Rental Agreement, or Rent Ledger workflow that matches the actual relationship. The current Hawaii statute and DCCA materials below remain the controlling public sources for the timing described here.
Common questions
How much notice does a Hawaii landlord need to raise rent month-to-month in 2026?
HRS § 521-21(d) requires written notice given 45 consecutive days before the effective date of a rent increase for a month-to-month tenancy.
How much notice is required for a Hawaii week-to-week rent increase?
HRS § 521-21(e) requires 15 consecutive days' written notice when the tenancy is less than month-to-month. Hawaii DCCA's handbook lists week-to-week tenancies under that 15-day notice starting point.
Does the Hawaii 45-day rule automatically apply to a fixed-term lease?
No. The 45-day rule in § 521-21(d) is written for month-to-month tenancies, while subsection (e) covers shorter periodic tenancies. A fixed-term lease should be reviewed on its own terms and under current Hawaii law before a rent change is attempted.
Does HRS § 521-21 set one statewide percentage cap on an ordinary private rent increase?
The provisions discussed here regulate rent agreements and the timing of periodic-tenancy increases; subsections (d) and (e) do not establish one percentage formula for every ordinary private rental. Other laws, housing programs, lease terms, or emergency rules can still matter.
Can a Hawaii landlord terminate a tenancy just to avoid the rent-increase notice period?
Hawaii DCCA's official landlord-tenant handbook states that a landlord may not give a termination notice for the purpose of evading the required rent-increase notice period.
Does Hawaii's 2026 Act 278 mediation pilot change the 45-day rent-increase rule?
No. DCCA describes Act 278 as a temporary nonpayment-of-rent eviction mediation program. Rent-increase notice timing remains a separate issue governed by HRS § 521-21 and the applicable tenancy facts.
Official sources
Hawaii State Legislature — HRS § 521-21 RentHawaii DCCA — Residential Landlord-Tenant Information CenterHawaii DCCA — Residential Landlord-Tenant HandbookContinue your check
Use the state directory for current jurisdiction-specific rules, calculate the proposed increase, then prepare the appropriate rental document only after the legal-rule checks are complete.