New Hampshire Rent Increase Laws: 30-Day Written Notice Rule

By Steve Levine · Updated November 3, 2026

Short answer: New Hampshire rent increase laws do not limit how much rent can go up, but in most rentals a landlord must give you written notice of the new amount and its effective date at least 30 days ahead, and only then can your refusal to pay it become grounds for eviction (RSA 540:2, IV). A raise within six months after you report a code violation is presumed retaliatory (RSA 540:13-b).

New Hampshire handles rent increases through its eviction statute rather than a stand-alone notice rule. Most rentals are “restricted property,” where a landlord needs a listed reason to end a tenancy. A tenant’s refusal to accept an increase counts as “other good cause,” but only if the 30-day written notice came first. That framing makes the notice the key to the whole process.

New Hampshire rent increase laws: the essentials

Rule	New Hampshire	Statute
Statewide rent cap	None found in RSA 540 or 540-A	RSA 540:2
Notice of increase (restricted property)	Written notice of amount and effective date at least 30 days before it takes effect	RSA 540:2, IV
Eviction for refusing the increase	Allowed as “other good cause”; 30-day eviction notice	RSA 540:3, II
Which rentals are exempt	Owner-occupied buildings of 4 or fewer units; single-family houses of owners with 3 or fewer	RSA 540:1-a
Retaliatory increase	Presumed if within 6 months of a report, repair or protected activity	RSA 540:13-b
Manufactured housing park	Owner may not vary rental agreement terms without tenant’s written consent	RSA 205-A:4, V

Restricted versus nonrestricted property

Whether the 30-day rule protects you depends on the kind of building you live in. RSA 540:1-a defines “nonrestricted property” to include single-family houses whose owner owns no more than three single-family houses, rental units in an owner-occupied building with four or fewer units, and single-family houses acquired by a lender through foreclosure. Every other residential rental is “restricted property.”

If you rent in a larger apartment complex or a house owned by a landlord with a bigger portfolio, you are almost certainly in restricted property. If you rent the second floor of a duplex where the owner lives downstairs, you are not. In nonrestricted property, RSA 540:2, I lets the owner end a tenancy with a written notice to quit for any reason, so the practical protection against a sudden increase is the 30-day notice-to-quit period in RSA 540:3.

The 30-day written notice for an increase

RSA 540:2, IV says a tenant’s refusal to agree to a change in the rental agreement calling for higher rent “shall constitute good cause for eviction,” provided the landlord gave written notice “of the amount and effective date of the rent increase at least 30 days prior to the effective date.” Read the condition carefully:

the notice must be in writing;
it must state the dollar amount and the date it takes effect; and
it must reach you at least 30 days before that date.

If any element is missing, refusing the increase is not good cause under paragraph IV. The landlord would have to start over with a proper notice.

What happens if you refuse

Refusing a properly noticed increase does not mean you must leave immediately. The landlord must still serve an eviction notice under RSA 540:3, II, which requires 30 days for this ground and must state the reason with specificity. Notices may be served in hand or left at your usual place of abode under RSA 540:5. In practice, the whole process gives you at least two 30-day windows to negotiate or plan a move.

Fixed-term leases

Paragraph IV describes a change “in the existing rental agreement,” which assumes the parties are free to renegotiate. A lease that sets rent for a fixed term binds both sides until it ends, unless it includes an increase clause. When the term expires, a landlord of restricted property can propose new rent with the 30-day notice. For leases of 12 months or longer, RSA 540:2, II(i) separately allows non-renewal at the end of the term with at least 60 days’ written notice, a ground that is subject to the retaliation defense.

Is there rent control in New Hampshire?

No state statute caps rents, and nothing in RSA 540 or 540-A sets a maximum increase or frequency. We found no provision in those chapters that either authorizes or forbids municipal rent control, so we do not state that local rent control is preempted. What controls the amount in practice is your lease and what the market will bear, with the notice and retaliation rules as your safeguards.

Retaliation: a six-month presumption

Under RSA 540:13-a, retaliation is a defense to eviction when the landlord acts because you reported a violation of RSA 540-A or a housing code to the landlord or an inspecting agency, started a good-faith action under RSA 540-A, or met with other tenants for any lawful purpose. The defense is unavailable if you owe the equivalent of one week’s rent or more.

RSA 540:13-b names “increase in rent” expressly. A rebuttable presumption of retaliation arises when an increase comes within six months after the landlord received notice of your complaint, completed repairs or fixed the violation, learned you had filed under RSA 540-A, or discovered your tenant organizing. The presumption is lost if a court finds your complaint was mainly meant to block an eviction.

Discrimination

RSA 354-A:10 makes it unlawful to alter the terms of a real estate transaction, including a rental, because of age, sex, gender identity, race, religion, color, marital status, familial status, physical or mental disability or national origin.

Manufactured housing parks

RSA chapter 205-A governs parks. RSA 205-A:4, V states that nothing in the eviction section permits an owner “to vary the terms of a written or oral rental agreement without the express written consent of the tenant.” Park rules can change without consent only on three months’ written notice. RSA 205-A:2, VIII(a) also forbids rules that charge increased rent for residents under 18. Compare states on our mobile home park laws by state page.

Worked example: a Concord apartment

Jordan rents in a 24-unit Concord building, so it is restricted property. Rent is $1,400 on a month-to-month basis. On February 10, 2026, Jordan calls the city’s code office about a broken boiler, and the landlord is notified the next day. On May 1 the landlord hands Jordan a written notice raising rent to $1,575 effective June 1.

Notice: May 1 to June 1 is 31 days, and the notice states the amount and date, so it satisfies RSA 540:2, IV.
Retaliation: The landlord learned of the complaint on February 11, less than three months before the increase, so RSA 540:13-b presumes retaliation as long as Jordan owes less than a week’s rent.
If Jordan refuses: The landlord would need a 30-day eviction notice under RSA 540:3, II and would have to rebut the presumption in court.

Steps to take

Figure out your property type using RSA 540:1-a.
Check the notice for amount, date and 30 days’ lead time. Our rent increase checker can confirm the timing.
Keep paying current rent on time, so the one-week-arrears bar never blocks a retaliation defense.
Gather your complaint records and read our landlord retaliation guide.
Negotiate or plan ahead. If you move, our New Hampshire security deposit law guide covers your refund; all states are on the rent increase laws by state hub.

Frequently Asked Questions

Can a New Hampshire landlord evict me for refusing a rent increase?

Yes, in restricted property, if the landlord first gave written notice of the amount and effective date at least 30 days ahead under RSA 540:2, IV. The landlord must then serve a 30-day eviction notice and win a possessory action.

I rent half of an owner-occupied duplex. Does the 30-day increase rule apply?

Not directly. An owner-occupied building of four or fewer units is nonrestricted under RSA 540:1-a, so the owner can end the tenancy for any reason with the notice RSA 540:3 requires.

Does the retaliation presumption cover rent increases or only evictions?

Both. RSA 540:13-b lists “any possessory action, increase in rent or any substantial alteration in the terms of the tenancy” within six months of the triggering event.

Can my park owner raise my lot rent mid-lease?

Not by changing your rental agreement without your written consent, under RSA 205-A:4, V. Any increase must fit the terms of the agreement you have.

If an increase notice is missing the amount, the date or the 30 days, tell your landlord in writing and keep a copy. This page is general information and not legal advice; LSC’s get legal help finder can connect you with New Hampshire legal aid.

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