Short-Term Rental Permits, Licenses and Registration Numbers: What Hosts Actually Need

On a listing form, a short-term rental permit, a business license and a tax registration number all look like the same thing: a box that wants a number. They aren't the same, and for a long time it didn't matter much which number went in the box. That's changing. Cities are starting to tell platforms exactly which number they'll accept, and in some of them a tax number won't satisfy that box much longer.

Here's what each one is, why the difference matters now, and the order hosts usually get them in. Rules are set city by city, so treat this as a map of the terrain, not the rules for your address. For those, use the address lookup.

Three things that get called a "permit"

Some cities fold the first two into one document. The naming doesn't help either: Texas calls its sales tax registration a "sales and use tax permit," which is a tax account, not permission to operate a rental. The useful question to ask about any number is "what does this prove?"

You may also need a general business license or business tax registration from your city, separate from all of the above. Portland, for example, requires anyone doing business in the city to register as a business with the city.

Why the difference matters now

For years, many listing systems took whatever number a host typed in, and cities enforced permits through complaints. Three things have changed that.

Cities now write the platforms into their rules. New York City requires hosts to register with the city and bars booking platforms from processing transactions for unregistered short-term rentals. Austin requires a license for any home rented for less than 30 consecutive days, and as of July 1, 2026 platforms must display the license number and remove unlicensed listings when the city asks.

Cities are getting specific about which number counts. Portland requires an accessory short-term rental permit, and its permit number has to appear on the listing. According to reports we're tracking, the city would also stop accepting a transient lodging tax registration number in its place. That report is marked Reported on our Portland change page until an official source confirms it. If it holds, hosts who've been listing with only their tax number would need the actual permit to stay listed.

Registries make checking cheap. Once a city keeps a registry of valid permit numbers, matching listings against it takes minutes. Hosts who were never checked before now get checked automatically.

What permit applications usually ask for

Requirements differ a lot, but most cities draw from the same short list.

Proof that you live there, when the rules depend on it. Portland's permits are only for primary residences, and the city confirms residency with an Oregon driver's license or ID. Nashville's owner-occupied permit asks for several documents proving the owner lives at the property, and the address has to match the deed.

Zoning eligibility. Nashville's non-owner-occupied permits are only available in certain non-residential zoning districts. That one requirement decides whether an investment property can get a permit at all.

Notice to neighbors. Portland's permits for renting one or two bedrooms require mailing a notice letter to neighbors and certain other parties.

Occupancy limits and safety items, such as a maximum number of guests or bedrooms, smoke and carbon monoxide detectors, and posted emergency contact information.

A fee and a renewal cycle. Fees change often enough that we don't quote them here; check the city's current fee schedule. Portland's permit, for example, is valid for two years and then has to be renewed.

The usual order of operations

This isn't advice for your situation, but it's the sequence that saves hosts the most backtracking.

1. Check whether short-term rentals are allowed at your address at all. That means city or county zoning, plus your HOA, condo rules or lease. If the answer is no, nothing else matters.
2. Apply for the permit or license. This takes the longest, sometimes weeks, and some cities have caps or waitlists.
3. Register for any taxes you'll collect yourself. Check which layers your platform collects first. Our guide to whether Airbnb collects occupancy tax walks through it.
4. Get any general business license or registration your city requires.
5. List with the right number in the right field. Airbnb's listing settings include a place for a registration, permit or license number in cities that require one.
6. Calendar the renewal. An expired permit can be treated the same as having none.

Questions to ask your city before you apply

Permit offices answer the same questions all day, and getting these answered up front saves a rejected application:

1. Is my address eligible? Ask about zoning for the specific parcel, not the neighborhood. Eligibility can change from one side of a street to the other.
2. Does it matter whether I live there? Many cities have different permit types, rules or limits for owner-occupied homes and for homes the owner doesn't live in.
3. Is there a cap or a waitlist? Some cities limit how many permits they issue overall, per building, or per area.
4. What inspections are required, and who does them? Some cities inspect before issuing; others ask you to self-certify.
5. What number goes on my listing? Ask specifically whether they expect the permit number, a license number or a registry number, and whether a tax registration number is accepted.
6. How long is it valid, and how does renewal work? Write the renewal date down the day you get the permit.
7. Which taxes do I register for, and with whom? The permit office often isn't the tax office, but it can usually point you to the right one.

What happens if you host without one

It varies by city, but the pattern is the same: escalating penalties, and more and more often, removal from the platform. New York City's penalties for unregistered short-term rentals increase with repeat violations, and the platforms themselves face penalties for processing bookings for unregistered listings, which gives them every reason to check. In cities with platform rules like Austin's, the city can simply ask the platform to take the listing down.

A delisted listing loses its reviews and its booking history along with the upcoming reservations. For most hosts that costs more than the permit.

If you're already hosting without one

Plenty of hosts started before their city had rules, or assumed their tax number was enough. If that's you, look up your city's current rules before your platform does. Some cities offer grace periods when new rules start (an Austin city memo said delisting notices would pause for a period after its new licensing system launched), but you can't count on one.

Our city pages put permits first when a city requires one, so you see it before the tax table. If your city isn't covered yet, the address lookup lets you ask for it, and the change log shows permit changes as we confirm them.

General information, not legal advice. For permit and zoning questions, your city's permitting office has the final word.