Are Sublets Legal in NYC?

Subletting is the quiet engine of New York housing. Interns do it. Grad students do it. People taking a three-month rotation in another city do it. And yet half the renters in this city think it's against the rules — usually because their lease says so in bold red type.

Here's the truth. The lease isn't the final word. New York State law is. This guide breaks down exactly when subletting is legal in NYC, when it isn't, and how to do it without putting your apartment, your deposit, or your record at risk.

Are sublets legal in NYC?

Yes, subletting is legal in NYC. Under New York Real Property Law § 226-b, tenants in buildings with four or more units have a legal right to sublet their apartment with the landlord's written consent — and the landlord cannot unreasonably withhold that consent. This rule applies even if your lease says "no subletting."

The catch is in the steps. You have to ask in writing, give the right notice period, and supply the right information. Skip those, and the landlord can refuse outright.

What New York's sublet law actually says

Real Property Law § 226-b governs subletting in New York. The statute does three things:

1. It gives tenants the right to request a sublet in buildings with four or more residential units.
2. It requires the landlord's consent, but bars them from withholding it without a reasonable basis.
3. It sets a strict procedure — written notice, specific information, response deadlines.

The law overrides most "no subletting" clauses in standard NYC lease agreements. A clause in your lease cannot strip you of a statutory right. What the lease can do is restrict subletting in smaller buildings (under four units) or in specific housing types like co-ops and condos.

When is subletting legal in NYC?

Subletting is legal in NYC when all of the following are true:

• Your building has four or more residential units.
• You sent written notice to your landlord by certified mail.
• The notice includes the required information (subtenant name, term, reason, address, your forwarding address, written consent of any co-tenants).
• The landlord either gave written consent or did not respond within 30 days.
• The sublet term is 30 days or longer (shorter stays fall under short-term rental laws, which are stricter).
• Your apartment remains your primary residence during the sublet.

Hit those, and you have a legal sublease. Miss one, and your landlord has grounds to refuse or to sue.

When is subletting NOT legal in NYC?

There are real limits. Subletting is illegal in NYC when:

The big one most renters miss: anything under 30 days where you're not present is an illegal short-term rental, full stop. That's the rule that killed most of NYC's Airbnb listings in 2023, and it's enforced harder every year.

NYC short-term rental laws (Local Law 18 explained)

A traditional sublet — one month, three months, six months, a full semester — is legal. A weekend rental on Airbnb is not, unless you're physically present in the unit during the guest's stay.

Local Law 18, in effect since September 2023, requires every short-term rental host in NYC to register with the Mayor's Office of Special Enforcement. Rentals under 30 days are only legal if:

• The host is physically present in the unit during the stay.
• There are no more than two guests at a time.
• Guests have free access to all rooms in the unit.

That's why most Airbnbs in NYC vanished. The law effectively bans the entire-apartment short-term sublet. If you want to sublet your place for 1–6 months while you're away — that's a traditional sublease and it's fully legal under RPL § 226-b. If you want to rent it out for a long weekend, that's not.

This guide is about the legal kind: the month-or-longer sublet.

How to sublet your NYC apartment legally (step by step)

Here's the legal process from § 226-b, line by line.

1. Send a written request to your landlord

Mail it by certified mail with return receipt. Include:

• The length of the sublet (start and end dates).
• The name and home address of the proposed subtenant.
• Your reason for subletting (job assignment, school, family, travel).
• Your address during the sublet (where the landlord can reach you).
• The subtenant's written consent to the sublet terms.
• The written consent of any co-tenants on your lease.

2. Wait 10 days for the landlord to ask follow-up questions

Within 10 days of receiving your notice, the landlord can request more information about the subtenant — credit, employment, references. You have to provide it within a reasonable time.

3. Wait for the landlord's decision

The landlord then has 30 days from your original notice (or from the date you supplied the requested information) to consent or refuse in writing.

4. Silence equals consent

If the landlord doesn't respond within 30 days, the law treats that as approval. You can move forward with the sublet.

5. If denied, demand a reason in writing

The landlord must state the reason for refusal. If the reason is unreasonable — they don't like the subtenant's name, they want to raise the rent, they want you out — you can sue and recover legal fees.

6. Sign a written sublease agreement

Always. Put the rent, the term, the security deposit, the rules, and the consequences in writing. A handshake sublet is how people lose money.

What's a "reasonable" refusal under § 226-b?

The statute doesn't define "reasonable" — but New York courts have. A landlord can legally refuse a sublet if:

• The proposed subtenant has a bad credit history or insufficient income.
• The subtenant has a history of evictions or housing court disputes.
• The sublet would violate occupancy limits or building rules.
• The landlord has documented evidence the subtenant is a safety risk.

A landlord cannot legally refuse because:

• They want to raise the rent on a new tenant.
• They don't like subletting in general.
• They want you to leave the building.
• They're discriminating on race, gender, family status, source of income, or any other protected class.

Rent-stabilized sublet rules

Rent-stabilized tenants have the same § 226-b rights, plus extra restrictions. Subletting a rent-stabilized apartment in NYC is legal, but:

• You can sublet for a maximum of 2 years in any 4-year period.
• The unit must remain your primary residence — you have to intend to return.
• The rent you charge cannot exceed your stabilized rent by more than 10%, and only if the unit is furnished.
• You must use the official DHCR sublease notice form and follow the agency's procedure.

Overcharging a subtenant in a stabilized unit can trigger a rent overcharge complaint and force you to refund the difference plus penalties. The Division of Housing and Community Renewal (HCR) doesn't play.

Co-op and condo sublet rules

Co-ops are their own animal. The proprietary lease — not RPL § 226-b — controls. Most NYC co-op boards require:

• A formal sublet application with the board.
• A sublet fee (typically 1–3 months of maintenance).
• Board approval, which can be denied for almost any reason short of illegal discrimination.
• A cap on how long and how often you can sublet (often 2 years out of every 5).

Condos are looser. The condo board has a right of first refusal but rarely blocks sublets. Most condo sublets clear with a routine application and a fee.

If you own a co-op and want to sublet, read your proprietary lease before doing anything. Subletting without board approval can trigger a default and, in serious cases, force you to sell the unit.

What happens if you sublet illegally in NYC?

Subletting without going through the § 226-b process — or running a true short-term rental against Local Law 18 — has teeth.

• Eviction. Illegal subletting is a lease violation. Your landlord can serve a notice to cure, and if you don't fix it, sue you in housing court for possession.
• Loss of rent stabilization. A stabilized tenant who sublets illegally can lose stabilization protection on the unit.
• Fines. Local Law 18 violations can run $1,000–$7,500 per incident for the host, plus separate penalties on the booking platform.
• Civil liability. Your subtenant has very few rights if the sublet wasn't authorized — but they can still sue you for the security deposit and any rent overpayment.

The most common failure isn't malice. It's people who don't realize the lease can't override their statutory right, and they just quietly hand the keys over. Don't quietly hand the keys over. Send the notice.

Sublet vs. lease assignment vs. roommate

These are three different things. Lawyers and landlords use the words precisely. You should too.

The Roommate Law (RPL § 235-f) gives every NYC tenant the right to one additional adult occupant (plus their dependents) regardless of what the lease says. That's a separate right from subletting. If you're staying in the apartment and want to bring in a roommate to split rent, you don't need § 226-b — you just need to notify the landlord within 30 days.

Can your landlord ban subletting in your lease?

Short answer: not in most NYC buildings. Real Property Law § 226-b overrides any blanket "no subletting" clause in a residential lease in a building with four or more units. A lease cannot waive a tenant's statutory rights.

In buildings with fewer than four units, the lease language controls. If you signed a lease in a 2-family brownstone that says "no subletting," that clause is enforceable.

How to find a legal subletter in NYC

Once you've got the green light, the next problem is the actual subletter. Craigslist works, but the average sublet listing on Craigslist gets 200 replies in 48 hours and roughly half are scams.

snag was built for this — a sublet platform for furnished, short-term NYC rentals from one month to a year. You post your unit, you get matched with vetted Gen Z renters who actually need a 1–6 month stay (interns, grad students, residencies, contract roles), and you hand off the keys without spending three weekends screening strangers.

The legal paperwork still falls on you. snag isn't your landlord and isn't a substitute for the § 226-b notice. But the matching part — the part where most sublets fall apart — is solved.

FAQ: NYC subletting laws

Is it illegal to sublet in NYC?

No. Subletting is legal in NYC under Real Property Law § 226-b for tenants in buildings with four or more units. You must give your landlord proper written notice and obtain consent, but the landlord cannot unreasonably refuse. Subletting only becomes illegal when you skip the § 226-b procedure, sublet for under 30 days without being present (Local Law 18), or violate rent stabilization or co-op rules.

Can my landlord say no to a sublet in NYC?

Your landlord can only refuse a sublet for a reasonable cause — usually a subtenant's bad credit, eviction history, or insufficient income. They cannot refuse simply because they don't like subletting, want to raise the rent, or want you out of the building. If the refusal is unreasonable, you can sublet anyway and recover legal fees if the landlord sues.

How long can you sublet an apartment in NYC?

A market-rate tenant can sublet for any length the landlord approves, typically the remainder of the lease term. A rent-stabilized tenant can sublet for a maximum of 2 years in any 4-year period. Short-term sublets under 30 days are restricted by Local Law 18 and are illegal unless the host is physically present.

Do I need landlord permission to sublet in NYC?

Yes. You must send written notice to your landlord by certified mail and follow the procedure in Real Property Law § 226-b. The landlord then has 30 days to consent or refuse. If they don't respond within 30 days, the law treats it as consent.

Can I sublet a rent-stabilized apartment in NYC?

Yes, but with extra rules. You can sublet a rent-stabilized apartment for up to 2 years in any 4-year period, the unit must stay your primary residence, and you cannot charge more than 10% above your stabilized rent (only if furnished). You must follow the HCR procedure and use the official sublease notice form.

What is the 30-day rule for sublets in NYC?

The "30-day rule" refers to Local Law 18, which makes any apartment rental under 30 days illegal in NYC unless the host is physically present in the unit and there are no more than two guests. That's why traditional 1–12 month sublets are fully legal, while weekend Airbnbs effectively aren't.

Can I sublet on Airbnb in NYC?

Only if you are physically present in the unit during the stay, there are no more than two guests, and you've registered with the Mayor's Office of Special Enforcement under Local Law 18. Renting out an entire apartment for under 30 days while you are away is illegal and can trigger fines from $1,000 to $7,500 per incident.

What happens if I sublet without permission in NYC?

Your landlord can serve a notice to cure, then sue for eviction in housing court if you don't fix it. Rent-stabilized tenants risk losing stabilization protection on the unit. If the sublet violates Local Law 18, you can be fined $1,000–$7,500 per incident, and the booking platform can be fined separately.

Is subletting the same as a lease assignment?

No. A sublet means someone else lives in your apartment for part of the lease term while you stay on the lease and remain responsible to the landlord. A lease assignment means someone takes over your lease entirely and you are removed from it. Assignments require explicit landlord consent and are governed by a different section of the law (RPL § 226-b(1)).

The bottom line

Subletting is legal in NYC. The lease that tells you otherwise is wrong about state law, and state law wins.

The work is in the steps — the certified letter, the 30 days of patience, the written sublease, the right kind of subtenant. Most renters in this city don't realize how much protection they actually have under § 226-b until they need it. The ones who do, sublet during their summer in Cape Cod, their fall in Berlin, their three-month rotation in Houston, and come back to an apartment they didn't have to give up.

If a sublet is the right move, snag is the fastest way to fill it. Post your place, get matched with vetted short-term renters, hand off the keys.

Your apartment shouldn't decide your year.