Subletting sounds simple enough — you're moving out temporarily, someone else moves in, rent still gets paid. But the reality is more layered. Whether you can sublet legally, and what that process looks like, depends on a combination of your lease terms, your landlord's policies, and the laws in your state or city. Getting it wrong can cost you your tenancy.
Subletting (also called subleasing) means you — the original tenant — temporarily rent your unit to a new person called a subtenant or sublessee. You remain on the lease and are still legally responsible to your landlord. If the subtenant doesn't pay rent or damages the unit, that liability falls back on you.
Assignment is different. When you assign a lease, you transfer your full tenancy rights to someone else, removing yourself from the picture. Most landlords treat these as separate situations with separate approval requirements.
Understanding which one you're actually doing matters — they carry different legal responsibilities and require different landlord approvals.
Your lease is the first place to look. Most standard leases fall into one of three categories:
| Lease Language | What It Means |
|---|---|
| Subletting explicitly prohibited | You need landlord approval before any sublet arrangement — and may not be able to proceed at all |
| Subletting allowed with written consent | You must formally request permission before the subtenant moves in |
| Silent on subletting | This is a gray area — local law often fills the gap |
If your lease is silent, don't assume you're free to sublet. Many jurisdictions have default rules that still require landlord notice or approval. Checking local tenant rights resources or a local attorney is worth doing before you proceed.
In most situations, subletting without explicit landlord approval is a lease violation — even if you have good intentions and a reliable subtenant lined up. Here's what typically requires permission:
Even in tenant-friendly jurisdictions that give you a right to sublet, there's usually still a notice requirement — meaning you must inform your landlord in writing before the arrangement begins, even if they can't flatly deny your request.
This varies significantly by location. In some states and cities, landlords have broad discretion to refuse a sublease for any reason. In others — particularly in cities with strong tenant protections — landlords can only refuse a sublease request on specific, documented grounds.
Common reasons a landlord may legitimately deny a sublease request:
What landlords generally cannot do (in most jurisdictions):
The balance between landlord discretion and tenant rights is genuinely different from place to place. A tenant in New York City has meaningfully different subletting rights than a tenant in a rural state with minimal tenant protection laws.
If your lease requires consent, following the right process protects you. A typical proper request includes:
Doing this verbally or informally leaves you exposed. If a dispute arises later, written records are what protect you.
Short-term rentals: Many tenants don't realize that listing an apartment on a vacation rental platform — even for a weekend — typically counts as an unauthorized sublet under the lease. Some cities have additional regulations that layer on top of that.
Adding a roommate mid-lease: Bringing in a new roommate who isn't on the lease is functionally a partial sublet in many landlords' eyes. Check whether your lease requires approval for any new occupant, not just a full sublet.
"Informal" arrangements: Having a friend stay and chip in for rent, even informally, can still constitute an unauthorized sublease if it's ongoing. The money exchanging hands is often what matters.
Students and seasonal sublets: Tenants who need to leave for a semester or a work assignment often assume subletting is a practical necessity a landlord will accommodate. It may well be — but the assumption without permission is where things go wrong.
The consequences depend on your lease and local law, but can include:
Even in places with strong tenant protections, an unauthorized sublet is typically considered a curable lease violation — meaning you may get a notice to remedy the situation before eviction proceeds. But that's not something to count on.
Before subletting, there are several things worth understanding about your specific situation:
If you're uncertain about any of these, tenant rights organizations, local housing courts, and legal aid services can help you understand what applies in your jurisdiction — without cost in many cases.
