Short-Term Rental Regulations Tighten in Five Major Cities

Five major U.S. cities have enacted tighter short-term rental regulations that take effect in the first half of 2026, reshaping the operating environment for Airbnb and Vrbo hosts. New York City, Boston, Denver, Portland, Oregon, and Honolulu have either implemented new rules or expanded enforcement of existing ones.

New York City's Local Law 18, which took full effect in 2024, continued to reshape the market into 2026. Short-term listings in the city dropped from 22,000 at the peak in 2022 to approximately 2,300 active registered units as of March, according to AirDNA data. The law requires hosts to register with the Mayor's Office of Special Enforcement and be present during stays.

Boston's revised ordinance, effective February 1, 2026, extended registration requirements to owner-absent units in triple-decker buildings and capped the number of permits per building. The Boston Licensing Board reported processing 4,120 applications in the first six weeks, rejecting 31% for failure to meet owner-occupancy provisions.

"Cities are increasingly distinguishing between owner-occupied and investor-driven short-term rental activity," said Amanda Sonneborn, a Boston attorney who represents short-term rental operators. Sonneborn noted that the enforcement wave follows years of housing-affordability debates and aligns with new state-level data-sharing laws in Massachusetts and Colorado.

Denver's short-term rental ordinance, updated by the city council in January, added a requirement that primary-residence hosts maintain vehicle registration and a driver's license listing the rental address. Violators face fines up to $1,000 per day. The Denver Department of Excise and Licenses issued 1,730 short-term rental licenses as of March, down from 2,480 in March 2025.

Portland revised its rules effective March 15, tightening documentation requirements and raising licensing fees. The city also granted additional inspection authority to the Bureau of Development Services. Short-term listings in Portland fell 12% year-over-year, AirDNA said.

Honolulu extended enforcement in the Kailua neighborhood of Oahu starting April 1, targeting illegal transient accommodations in residentially-zoned areas. The city had faced a lawsuit from the Hawaii Legal Short-Term Rental Alliance over earlier rules; a state appellate court ruled in favor of Honolulu in February, clearing the way for implementation.

AirDNA reported that nationwide active short-term listings reached 1.68 million in March, up 1.2% year-over-year, the slowest growth pace in at least five years. Average daily rates softened slightly, with occupancy averaging 54.3% for the month.