Whatcom County, WA Airbnb & Short-Term Rental Regulations 2026

Regulation Overview

Bellingham, Mount Baker and the run up to the Canadian border — a market split between a university city and serious outdoor tourism.

Washington sets a statewide floor for short-term rentals but lets counties and cities go much further, and they do. Local position here: Land use permit required in Bellingham; area bans apply.

Washington State Law (RCW 64.37)

Washington regulates short-term rentals statewide through Chapter 64.37 RCW. Unlike Arizona or Texas, this is a floor, not a ceiling: the statute sets minimum obligations, and it does not preempt counties and cities from regulating far more heavily on top. That is why the spread between Washington markets is so wide.

What the statute defines and requires:

• Definition. A short-term rental is a dwelling unit offered to a guest for a fee for fewer than 30 consecutive nights.
• Liability insurance. An operator must carry primary liability insurance covering the unit of at least $1,000,000 in the aggregate, or conduct every transaction through a platform providing equal or greater primary coverage. Note this is double Arizona’s minimum.
• Taxes. Operators must remit all applicable local, state and federal taxes — occupancy, sales, lodging and any other fee or assessment a hotel or bed and breakfast in the same jurisdiction would pay — unless the platform does it for them.
• Guest contact. Operators must give guests contact information, available during the stay, for someone who can respond to issues at the property.
• Carbon monoxide alarms. Operators must confirm the unit complies with carbon monoxide alarm requirements.
• Platform registration. A short-term rental platform may not operate in Washington unless it complies with the chapter and registers with the department.

No State Preemption — why local rules decide everything

This is the single most important structural fact about investing in Washington short-term rentals, and it is the opposite of states like Arizona:

Washington counties and cities may cap short-term rentals, and may prohibit them in specific areas. Nothing in RCW 64.37 stops them. The practical results across this state include hard numeric caps tied to housing stock, once-a-year application windows, conditional use permitting, and outright geographic exclusion zones.

Two consequences for a buyer:

• The permit can be worth more than the finish level. In capped jurisdictions, whether a property can legally operate — and whether that right survives a sale — matters more than any renovation.
• Jurisdiction is the first question, not a detail. Unincorporated county, incorporated city and urban growth area can each carry different rules within a few miles. Establish which one the parcel sits in before anything else.

Whatcom County Rules

The important distinction here is city versus county, and the City of Bellingham is where most of the market sits.

• Bellingham requires a short-term rental land use permit for all short-term rentals. This is a land use approval, not a simple registration.
• Outright exclusion zones. Short-term rentals are not allowed in the Lake Whatcom Watershed or in shoreline areas. These are not conditions you can satisfy — they are places the use is prohibited, and they cover some of the most desirable water-adjacent property in the county.

Because the prohibited areas are geographic rather than procedural, address-level due diligence matters more here than almost anywhere else in Washington. A property two streets away from a permitted rental may be inside an exclusion zone. Verify the specific parcel with the City of Bellingham or Whatcom County before making an offer.

Lodging Taxes & Licensing

Washington short-term stays carry a stack of lodging taxes: state and local sales tax, local lodging or transient occupancy taxes, and in some jurisdictions tourism promotion area charges. Combined rates commonly land in the region of 10% or more, varying by location.

Airbnb and Vrbo collect and remit some of these on your behalf, and RCW 64.37 relieves the operator of remitting where the platform does it. That relief is specific to what the platform actually collects — it is not a blanket exemption, and direct bookings are entirely your responsibility. Most operators also need a Washington State business licence and a UBI number.

Rates change and vary by jurisdiction, so we do not publish a single combined figure here. Confirm the current rate for your exact address with the Washington State Department of Revenue and the local jurisdiction before you model net income.

Buyer Due Diligence Checklist

Washington rewards address-level diligence more than almost any state on this site. Before you write an offer:

• Establish the jurisdiction. Unincorporated county, city limits or urban growth area — each may have a different rulebook.
• Ask whether a cap exists, and where it currently stands. A cap that is already exceeded means no realistic path to a permit.
• Ask whether an existing permit transfers on sale. In some Washington jurisdictions it does not, and a listing marketed as a running short-term rental may convey nothing of the sort.
• Check for geographic exclusions — watershed, shoreline and overlay zones can prohibit the use outright at parcel level.
• Check septic capacity where the property is not on sewer. It can cap occupancy below bedroom count, and therefore cap revenue.
• Get it in writing from the planning department for the specific parcel. A verbal from anyone else is not diligence.

Frequently Asked Questions