Multnomah County, Oregon Short-Term Rental Regulations: A 2026 Guide For Airbnb Hosts

Do you own a place in Multnomah County, Oregon and you're weighing whether to put it on Airbnb or Vrbo? Well, the good news is the answer is often yes, though it hangs almost entirely on which patch of the county your front door sits in. Multnomah County itself runs no short-term rental permit program, and its own land use code quietly bans the whole thing across the unincorporated areas, so whether you can legally host comes down to your city rather than the county.

That split trips people up more than any single rule, so it's the first thing to get straight. Assuming your place is in unincorporated Multnomah County, meaning outside the limits of Portland, Gresham, Troutdale, Fairview or Wood Village, short-term rental of a whole house or any portion of an accessory dwelling unit simply isn't a permitted use, and no fee unlocks it. Inside the cities it's a different world: Portland lets you host with an Accessory Short-Term Rental permit, Gresham has its own, and the smaller cities each set their own terms. On top of all of it, the county layers a lodging tax that reaches every legal rental no matter which city collects it.

So let's walk through what it actually takes to do this properly: who can host and where, the permit your city expects, the three layers of tax you'll be collecting in 2026, how seriously any of it gets enforced, and who to call when you inevitably get stuck. Every figure below comes from Multnomah County's, Portland's, or Oregon's own pages, checked in July 2026, and where something's still moving I've said so. If you're comparing a Multnomah County property against a market where the rules are simpler, run both through BNBCalc first.

What are Short-Term Rental (Airbnb, VRBO) Regulations in Multnomah County, Oregon?

That city-by-city split is the whole ballgame, so pinning down who governs your address is the first real step. Two questions stack on top of each other here. First, is your property inside a city or in the unincorporated county? Second, whatever the answer, what does that specific jurisdiction allow? Get the first one wrong and the second one won't save you, because the two levels of government treat short-term rentals completely differently.

Start with the unincorporated county, because that's where the bad news lives. Multnomah County's land use code is what planners call prescriptive: it lists the uses that can be approved in each zone, and anything not on the list is off the table by default. Short-term rentals never made the list. The county says so plainly on its code compliance page, which names "short-term rental of an entire house or any portion of an accessory dwelling unit (ADU)" as a use that isn't permissible in unincorporated Multnomah County. That prohibition runs through the county's zoning code, Chapters 38 and 39. No permit, variance or license turns it into a yes.

The cities are where hosting actually happens, and thankfully they're far more accommodating. Portland regulates short-term rentals under its own zoning code, Chapter 33.207, which allows a resident to rent bedrooms in the home they live in with an Accessory Short-Term Rental permit. Gresham runs a short-term residential rental permit under its own municipal code. Troutdale, Fairview and Wood Village each set their own rules too, so make sure you confirm which city you're in before you assume anything, because a property two blocks from a city line can face an entirely different answer. The county's role, once you're operating legally in a city, narrows to one thing: collecting its lodging tax. That's the whole of it.

Starting a Short-Term Rental Business in Multnomah County

Since the unincorporated county closes the door completely, let's be honest about who this actually works for. Unfortunately for anyone whose property sits outside a city boundary, there's no business to start on that parcel at all. You can't buy a rural lot near the Sandy River, furnish a cabin, and put it on Airbnb for weekend guests, because the county's code doesn't list that use and won't approve it. No LLC, no permit application and no amount of paperwork changes that, so if that's your situation, the realistic pivot is a stay of 30 days or longer, which falls outside the lodging rules and under ordinary landlord and tenant law instead. The nightly market isn't open there.

Inside a city, though, there's a genuine and fairly ordinary path. The shape of it is a permit from your city, a tax account with the county, and a rental designed to fit whatever your city's code allows. In Portland, that means you have to live in the home you're renting, since the permit is for an accessory use of your own residence rather than a standalone investment property. Keep that residency rule in mind early, because it quietly rules out the classic buy-it-to-rent-it plan that works in looser markets.

The economics differ a lot depending on which city you land in, so it pays to read the city-specific rules before you commit. Our Portland short-term rental guide walks through the ASTR permit in detail, and the Gresham guide covers that city's permit and its steeper 8% lodging tax. Both are the useful next reads once you've confirmed your address actually sits inside city limits, since almost everything from here depends on that.

Short-Term Rental Licensing Requirements in Multnomah County

Assuming your property clears that city-limits test, there's still a licensing picture with two moving parts that people routinely mix up. The county doesn't issue a short-term rental license at all. What the county issues is a tax registration, and the operating permit that actually lets you host guests comes from your city. You'll likely need both, so it helps to keep them straight from the start.

Take the city permit first, because it's the one that governs whether you can open the door to a guest. In Portland, the Accessory Short-Term Rental permit comes in two flavors under Chapter 33.207: a Type A permit covers up to two bedrooms rented to guests, while a Type B permit covers three or more and triggers a heavier land-use review. Either way, a resident, whether that's the owner or a long-term renter, has to live in the dwelling unit, and the rental has to stay accessory to that residence. Gresham, meanwhile, issues its own short-term residential rental permit with its own conditions, so whichever city you're in, treat that city permit as the thing that makes hosting legal, and don't skip it on the assumption the tax account covers you.

The county's own role, by contrast, is narrower and sits entirely on the tax side. Under Multnomah County Code 11.406, every operator of transient lodging in the county must register with the tax administrator within 15 days of starting business, and the county then issues a certificate of authority within ten days at no charge. There's one wrinkle worth flagging: the county's own transient lodging tax page says registration isn't required, which reads like a contradiction until you realize it's talking about hosts whose bookings all run through a platform. When Airbnb or Vrbo collects and remits the tax for you, the county isn't looking for a separate registration from you. Book guests directly, though, and you're the one on the hook to register and file.

Required Documents for Multnomah County Short-Term Rentals

Because those two tracks run in parallel, the paperwork splits the same way, and it's worth gathering both stacks before you apply rather than discovering a gap halfway through. One pile supports your city permit, the other opens your county tax account, and neither substitutes for the other.

For the city permit, the exact list depends on your city, but Portland's ASTR process is representative of what to expect:

• Proof that you live there. Portland's permit hinges on the home being your residence, so plan to document it. The Portland guide breaks down which proofs the city accepts.
• A safety self-certification. Cities in the county generally want smoke alarms, carbon monoxide detectors and fire extinguishers confirmed before a permit issues.
• Notice to your neighbors. Portland requires you to notify surrounding property owners that you're applying, which is often where an application slows down.
• A floor plan or basic site information showing the bedrooms you intend to rent.

For the county tax account, the Transient Lodging Tax Quarterly Return shows what the county actually wants from you: your rental agency name, a tax ID, a contact name, phone and email, and both the physical and mailing address of the rental, with a box to mark whether the property is incorporated or unincorporated. Keep good records of gross rental receipts too, since the return asks you to itemize deductions line by line, and be aware the county can examine those records if it ever questions a filing.

Multnomah County Short-Term Rental Taxes

Once you're registered and permitted, the tax stack is the part that catches new hosts off guard, mostly because three different governments each take a slice and none of their rates match. So it's worth taking them one layer at a time. The good news is that for most hosts the booking platform does the heavy lifting, but you still need to know what's being collected in your name.

Here's how the layers stack for a legal short-term rental in Multnomah County in 2026:

Charge	Rate	Who collects it
Oregon state transient lodging tax	1.5% (rising to 2.75% on Jan 1, 2027)	Platform or host, remitted to Oregon DOR
Multnomah County transient lodging tax	5.5%	County Treasury, or the City of Portland for Portland rentals
City transient lodging tax	Portland 6%, Gresham 8%	The city (platforms remit it in Portland)

The county layer has a quirk worth understanding, because the headline number and the number you actually remit aren't the same. Multnomah County Code 11.401 imposes an 11.5% county tax, built from a 5% base rate plus surcharges of 1%, 3% and 2.5%. But the base 5% and the 1% surcharge, 6% together, are creditable against a city's own lodging tax, so in Portland you effectively pay the city's 6% and remit only the remaining 5.5% in surcharges to the county.

That's why the county's return form lists the Multnomah County tax at 5.5%, and why it carries a separate 6% line for unincorporated rentals, where there's no city tax to credit against. The form also lets you keep 5% of the county tax as an operator's collection expense. It's a small offset, but a real one.

Where you send it depends on your city. For a rental inside Portland, the City of Portland collects both the city's 6% and the county's 5.5%, so both go to Portland in one place. For a rental in the county but outside any city, the county Treasury collects the tax directly. Portland's own transient lodgings tax is 6% as of July 2026, split as 5% to the general fund and 1% to Travel Portland, and Portland adds a $4-per-night fee on short-term rentals on top of that.

Now for the part that saves most hosts real effort. Airbnb and Vrbo are both registered booking agents with the City of Portland, which means they collect and remit the city and county lodging taxes for bookings made through them. If every one of your bookings comes through a registered platform, you register with the tax program but don't have to file returns, since the platform handles it. Take a direct booking, though, and you're back to filing yourself. Remember that the county return runs on a quarterly schedule under MCC 11.407: it's due by the 15th of the month after each quarter, meaning January, April, July and October, and it becomes delinquent at the end of that month.

Don't let a delinquency slide, because the county's penalties compound fast. Under MCC 11.420, miss the deadline and you owe a 10% penalty right away, then another 15% if it's still unpaid 30 days later, climbing to a 25% penalty for outright fraud, with interest running at 1% a month, compounded. On top of that, MCC 11.499 makes each violation, including simply failing to register, punishable by a fine of up to $500 per offense. None of that is ruinous on its own, but it adds up quickly on a rental you thought was quietly compliant.

Oregon Wide Short-Term Rental Rules

Those local taxes sit on top of a thin but important state layer, and understanding it explains why Oregon cities have so much freedom to set their own course. Oregon has no statewide short-term rental registry, license or permit. The only state-level filing a host needs is a tax account, a Transient Lodging Tax registration through the Oregon Department of Revenue's Revenue Online system, which is free to open and carries no separate renewal.

The state's tax is the piece that's about to move. Every Oregon stay carries a state transient lodging tax under ORS 320.305, currently 1.5% of the price of the stay. That rate rises to 2.75% for stays occurring on or after January 1, 2027, under House Bill 4134 from the 2026 session, which routes the new money to wildlife conservation. Make sure you update your pricing and your bookkeeping before that date, because it lands mid-booking-season and a stay's tax follows the date the guest actually stays, not the date they booked.

On land use, the state stays out of the way. Oregon's only statewide preemption touches tax rates, not zoning: ORS 320.350 froze new local lodging taxes at their July 2003 levels but says nothing about bans, caps or permits. That's exactly why Multnomah County can prohibit rentals in its unincorporated areas while Portland welcomes them a mile away. For the wider picture, our Oregon statewide guide maps how the state layer interacts with local rules, and if you're shopping across county lines, the Clackamas County guide covers the suburbs just to the south.

Does Multnomah County Strictly Enforce STR Rules? Is Multnomah County Airbnb Friendly?

Enforcement here works differently depending on which rule you're talking about, so the honest answer is that Multnomah County is both friendly and unfriendly at once. If you're inside a city and you get permitted, this is a workable, mainstream market, and the tax side largely runs itself because the platforms collect it. If you're in the unincorporated county hoping to skirt the prohibition, this is a closed door, and no amount of low-key operating makes it legal. That door stays shut.

The unincorporated ban gets enforced through the county's code compliance program, which is complaint-driven the way most zoning enforcement is. A neighbor reports the activity, a code specialist investigates, and because the use simply isn't permitted, there's no path to cure it. You just have to stop. Keep in mind that a listing is public by nature, so an unpermitted rural rental isn't hard for anyone to spot and report.

On the tax side, the enforcement is quieter but more automatic. Because Airbnb and Vrbo remit the lodging taxes directly, the county and city already see the revenue on legitimate platform bookings, which makes an under-reported direct booking stand out rather than blend in. Watch out for the assumption that hosting through a platform means you've handled everything, since the platform covers the tax but never the city permit. Plenty of hosts collect taxes flawlessly through Airbnb while quietly operating without the ASTR permit their city requires, and that gap is exactly what a complaint tends to expose.

How to Start a Short-Term Rental Business in Multnomah County

Given how much rides on your address and your city, the order you tackle things in matters more than it looks, because the early steps decide whether the later ones are even worth your time. Work through them roughly like this:

1. Confirm which jurisdiction you're in before anything else. Look your address up on PortlandMaps to see whether you're in Portland, another city, or unincorporated county. If it's unincorporated, stop here for short-term rental plans and consider a 30-plus-day rental instead.
2. Read your city's short-term rental code. In Portland that's the ASTR rules; in Gresham it's the city's short-term residential rental permit. Confirm you can meet the residency requirement, since most city permits assume you live in the home.
3. Design the rental to fit the permit. Decide how many bedrooms you're renting, since that's what separates Portland's Type A permit from the heavier Type B review.
4. Handle safety and neighbor notice. Install and document smoke alarms, carbon monoxide detectors and extinguishers, and complete any neighbor notification your city requires.
5. Apply for the city permit and pay its fee. Don't book a guest until it's approved.
6. Register for the county lodging tax. File the county's tax registration, and register with Portland's tax program too if you're in the city.
7. Set up tax collection. If you book only through Airbnb or Vrbo, confirm they're remitting the city and county taxes for you. For any direct bookings, diarize the quarterly county return so you don't trip the penalties.

Who to Contact in Multnomah County about Short-Term Rental Regulations and Zoning?

Whichever step trips you up, the question usually belongs to one of three offices, and knowing which one owns it will save you a frustrating amount of time bounced between phone lines.

Zoning and whether a rental is allowed at your address

Whether short-term rental is even permitted where you are is a land-use question, and in the unincorporated county that's Multnomah County Land Use Planning.

• Address: 1600 SE 190th Avenue, Portland, OR 97233
• Phone: 503-988-3043
• Email: [email protected]
• Hours: by appointment Tuesday through Thursday, with walk-in hours Tuesday and Thursday afternoons from 1 to 4 pm

If your property is inside a city, the equivalent question goes to that city's planning department instead, since the county doesn't zone land inside city limits.

The county lodging tax

Registration, returns and payment of the county transient lodging tax run through Multnomah County Treasury.

• Phone: 503-988-2323
• Email: [email protected]
• File online: the county's online filing portal

City taxes and permits

For a rental inside Portland, the city's transient lodgings tax and the ASTR permit belong to the City of Portland Revenue Division.

• Phone: 503-823-5157
• Email: [email protected]
• Online: the Portland transient lodgings tax page carries the forms and the list of collecting platforms

For Gresham's 8% lodging tax, contact the city's tax staff at 503-618-2325 or [email protected].

What Do Airbnb Hosts in Multnomah County on Reddit and Bigger Pockets Think about Local Regulations?

Those contact lines come up a lot in host discussions, because the recurring theme in Multnomah County is confusion about which office even governs a given property. What follows is my read of the common threads rather than any kind of survey, so do weigh it accordingly.

• The county-versus-city line is the single biggest source of frustration. Owners near the edges of Portland or Gresham regularly discover, sometimes after buying, that an unincorporated address forecloses short-term rental entirely. The advice that circulates is blunt: check your jurisdiction on PortlandMaps before you count on any rental income at all.
• Portland's residency requirement thins out the investor crowd. Because the ASTR permit assumes you live in the home, hosts report that the whole-unit, buy-to-rent model most investors want just isn't on offer inside the city, which pushes that crowd toward the surrounding counties.
• The tax collection gets described as refreshingly painless. Hosts who book through Airbnb or Vrbo consistently note that the platforms handle the lodging taxes, so the county and city tax layers rarely generate the headaches you'd expect from a three-tier stack.
• The permit, not the tax, is where people slip up. The pattern that comes up again and again is a host collecting taxes correctly through a platform while never securing the city permit, then getting caught out by a neighbor complaint.

Take that last point seriously. In this county the tax is the easy part, and the permit is the part that quietly decides whether you're compliant or exposed. If you're still weighing whether the numbers justify the effort, the Oregon short-term rental market data is the place to sanity-check what a legal, permitted rental in this part of the state actually tends to earn.

Frequently Asked Questions

Can you run an Airbnb in Multnomah County, Oregon in 2026?

It depends on where the property sits. In unincorporated Multnomah County, short-term rental of a house or any part of an ADU isn't a permitted use, so there's no legal path there. Inside the cities it's allowed: Portland issues an Accessory Short-Term Rental permit for a home you live in, and Gresham runs its own permit. Check whether your address is in a city or the unincorporated county before you plan anything.

What is the short-term rental tax in Multnomah County?

The county transient lodging tax you remit is 5.5%, on top of a city tax that runs 6% in Portland and 8% in Gresham, plus Oregon's state lodging tax of 1.5%. That state rate rises to 2.75% for stays on or after January 1, 2027. For bookings made through Airbnb or Vrbo, the platform collects and remits the city and county taxes for you, so most hosts never file a county return themselves.

Do you need a license to run an Airbnb in Multnomah County?

You need a permit from your city, not from the county. Portland requires an Accessory Short-Term Rental permit and Gresham requires a short-term residential rental permit, both tied to a home you live in. Separately, the county wants you registered for its lodging tax within 15 days of starting, though if all your bookings run through a platform that remits the tax, the county doesn't require a separate registration from you.

Are short-term rentals banned in unincorporated Multnomah County?

Yes. The county's land use code lists the uses allowed in each zone, and short-term rental of an entire house or any portion of an accessory dwelling unit isn't on that list, which makes it prohibited by default. No permit or fee changes that. If your property is outside the limits of Portland, Gresham, Troutdale, Fairview or Wood Village, a stay of 30 days or longer is the only lodging route available to you.

Does Airbnb collect lodging taxes in Multnomah County?

Yes, for bookings made through the platform. Airbnb and Vrbo are registered booking agents with the City of Portland and collect and remit the city and county lodging taxes on the stays they facilitate. If every booking comes through a registered platform, you register with the tax program but don't file returns yourself. For any direct bookings, you're responsible for collecting the tax and filing the county's quarterly return.

Last verified: July 2026. Every ordinance, tax rate, state law, and contact detail in this guide links to or comes from its official source.