The Maine Agenda › Live in Maine
Rental Registration Rules by Town in Greater Portland, Maine
Own a duplex on Munjoy Hill and the city of Portland wants your name, your phone number, and 110 dollars every December. Own the identical duplex four miles north in Falmouth and the town does not want to know you exist. Nobody has written that comparison down, which is how a landlord who buys a second building one town over ends up with a late fee, and how a tenant trying to find out who actually owns their building learns that in most of Greater Portland, no municipal office has the answer.
Rental registration is not the same thing as a short-term rental license, and confusing the two is the most common mistake here. Short-term registration is about who may rent a place by the night. Rental registration is about long-term tenancies, the ordinary year lease, and it exists so the town knows who to call when a furnace fails or a building burns. Almost every town in this region regulates the first. Only three regulate the second.
Here is who requires what, read off the towns' own ordinances and code pages on August 13, 2026.
| Town | Registration required? | What you actually have to do |
|---|---|---|
| Portland | Yes, every unit | Register with the Licensing and Registration Office by December 31 and pay 55 dollars per unit per year |
| Brunswick | Yes, every unit | Register with the Fire Department Fire Prevention Office by January 15, no fee, penalties if you skip it |
| South Portland | Only buildings of three or more units | File owner and property manager contact details with Code Enforcement, no published annual cycle or fee |
| Yarmouth | No, and the town publishes a page saying so | Nothing, unless you own 10 or more units in one building or complex, which triggers 75 days notice of a rent increase |
| Cape Elizabeth, Cumberland, Falmouth, Freeport, Gorham, Scarborough, Westbrook, Windham | No | Nothing. Several of these towns register short-term rentals, which is a different program |
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Portland: the only real program, and it just got more expensive
Portland is the one place in Greater Portland running a genuine annual licensing program for long-term rentals, under Chapter 6, Article VI of the city code. Every owner must register every residential rental unit with the Licensing and Registration Office by December 31 each year, or within fifteen days of a unit entering the rental market. Rooms, apartments, condominiums, and whole houses all count. If rent is charged, it registers.
The number that changed this summer: as of July 1, 2026 the fee is 55 dollars per unit per year, up from 50. Any guide still quoting 50 dollars is quoting the old schedule. Two duplexes are four units, which is 220 dollars, not 110.
The late fees have real teeth and they escalate fast. A license not renewed within 14 days of expiration draws a 50 dollar per unit late fee. Not renewed within 45 days, and it becomes 200 dollars per unit. An incomplete renewal counts as unrenewed, which is the trap that catches people who submitted something in December and assumed they were done.
There are discounts, and they are the only part of this system that rewards you for building safety rather than paperwork: 10 dollars off for a fully sprinklered building, 7.50 off for an off-site monitored fire alarm system, 5 dollars off for a HUD Housing Quality Standard inspection on a subsidy unit, 10 dollars off for a HUD Uniform Physical Condition Standard inspection. Each requires documentation from the preceding year, and the sprinkler discount wants the testing or maintenance report.
The part worth reading twice is on Portland's own page, in the city's own words: acceptance of a registration form does not constitute a determination that the unit complies with the code. Registering is not a clean bill of health. Tenants sometimes read a registration as a safety certificate. The city explicitly says it is not one.
One genuinely useful byproduct: Portland publishes registered rental properties through its Citizen Self Service portal, so a tenant or a buyer can check whether a building is registered and who filed it. That is the closest thing this region has to a public landlord directory.
South Portland: three units and up, once, and then a phone call
South Portland has a registration requirement, and it is much smaller than Portland's. Under Chapter 5, Article VII, effective January 1, 2012, owners of buildings containing three or more dwelling units, rooming units, or any combination must register the property with the city. What gets disclosed is the name, address, and telephone number of the owner and the property manager. That is it.
There is no annual license year in the way Portland runs one, no published per-unit fee, and no online renewal portal for long-term units. The city's own instruction to owners is to contact the Code Enforcement Department and confirm the required information is on record, which tells you what this program actually is: a contact list, not a licensing regime. If you own a duplex in South Portland you are below the threshold and nothing is required of you.
Separately, and this catches people, South Portland requires 90 days written notice before any rent increase under Section 12-223. That is a different ordinance from registration and it applies regardless of how many units you own. We cover the notice rules in rent increase rules by town.
Brunswick: newest, free, and run by the fire department
Brunswick adopted a rewritten rental registry on July 21, 2025, effective August 20, 2025, and the first annual deadline under it fell on January 15, 2026. Registration goes to the Fire Department Fire Prevention Office, not to a clerk or a code officer, and the reason is written into the ordinance: the town wants an emergency contact and an accurate picture of the housing stock.
Three features make it different from Portland's. First, there is no registration fee at all. Second, the definition is broad in one direction and narrow in another: short-term rents and accessory dwelling units are subject to it, while a unit rented to a member of the owner's immediate family is not a rental unit for these purposes, and dormitories and licensed lodging facilities are out. Third, what it collects is heavier than Portland's basic form. Brunswick asks for the assessor's map and lot, the number of bedrooms and bathrooms, whether there is a kitchen, and any special fire safety measures such as a Knox box.
The penalty structure is where a free program gets expensive. Fail to register or to update, and the penalty fee under the town fee schedule is 50 dollars per unit, doubling every 30 days until it reaches 400 dollars per unit. No certificate of occupancy will be issued for an unregistered property that is subject to the requirement. New owners get 90 days after taking ownership, and adding or removing units triggers a 90 day update clock.
One clause deserves a landlord's full attention. Service of legal notice and process on the person you designate as agent is deemed conclusive service on you. Name someone who opens mail.
Yarmouth says out loud what most towns leave implied
Yarmouth is the only town in the region that publishes a page confirming the absence of a requirement, and it is the most useful page of its kind we have found. The town states plainly that it does not require short-term or long-term rentals to be registered. It ran a one-time census of rental units in 2022 and stopped there. The single obligation on Yarmouth landlords is under Chapter 317, the Rental Dwelling Ordinance: an owner with 10 or more units in a building or complex must give 75 days notice of a rent increase.
That page exists because someone in Yarmouth understood that residents were searching for a rule that does not exist. Every other town in this region should copy it.
The towns that require nothing
We searched the full online code of ordinances for Westbrook, Cumberland, Gorham, and Windham, and read the complete published chapter or ordinance index for Cape Elizabeth, Scarborough, and Freeport, on August 13, 2026. None of them has a long-term rental registration requirement.
Several of them do register short-term rentals, and that is what turns up when you search, which is why this gets muddled. Falmouth charges 300 dollars a year to register a short-term rental under its ordinance effective January 1, 2022, and requires renewal on or before January 1. Freeport, Cape Elizabeth, and Scarborough regulate short stays through zoning or a clerk's registration. None of that touches a year lease. The short-stay side is a genuinely different map, and it is in short-term rental rules by town.
Two useful non-registration rules survive in towns with no registry. Westbrook's code lets the city inspect a rental unit whenever an applicant applies for General Assistance and the landlord wants city rent payments. And in every town, the state landlord-tenant statutes still apply. No registry does not mean no rules, it means no list.
What this means if you rent, and what it means if you own
If you rent: registration tells you the town has a phone number for your landlord. It does not tell you the unit is safe, and Portland says so in writing. If you live in Portland, you can look your building up in the city portal and see whether it is registered, which is worth doing before you sign. Everywhere else, the assessor's database is your best route to an owner name, and it is public.
If you own: the deadlines are not aligned and that is the whole problem. Portland wants you by December 31. Brunswick wants you by January 15. South Portland wants a phone call once, if you cross three units. A landlord with buildings in two of these towns has two different calendars, two different offices, and two different definitions of what counts as a unit. Nobody sends you a combined reminder, and the Brunswick penalty doubles monthly while you wait to find out.
If you are moving here and buying a small multifamily as an owner occupant, the town line matters more than the paperwork suggests, and the rest of that calculation is in moving to Portland Maine.
FAQ
Does Maine require landlords to register rental properties?
No. Maine has no statewide rental registry. Registration is set town by town, and in Greater Portland only three municipalities require it for long-term rentals: Portland, South Portland for buildings of three or more units, and Brunswick. Every other town in the region checked on August 13, 2026 has no long-term rental registration requirement.
How much does it cost to register a rental unit in Portland, Maine?
55 dollars per unit per year, as of July 1, 2026, up from 50 dollars. Registration is due by December 31 each year or within fifteen days of a unit entering the rental market. Discounts run from 5 to 10 dollars per unit for sprinklers, off-site monitored fire alarms, or a documented HUD inspection in the preceding year.
What happens if a Portland landlord registers late?
A license not renewed within 14 days of expiration is assessed a 50 dollar per unit late fee, and one not renewed within 45 days is assessed 200 dollars per unit. Incomplete renewals are treated as late. On a six unit building, missing the 45 day mark costs 1,200 dollars in penalties on top of the 330 dollar registration.
Does South Portland require rental registration?
Only for buildings with three or more dwelling units, rooming units, or any combination, under Chapter 5, Article VII, effective January 1, 2012. Owners disclose name, address, and telephone number for the owner and property manager. Duplexes and single-family rentals are below the threshold. South Portland separately requires 90 days notice of a rent increase.
When is the Brunswick rental registry deadline?
January 15 each year, beginning in January 2026, filed with the Fire Department Fire Prevention Office. There is no registration fee. The penalty for not registering is 50 dollars per unit, doubling every 30 days until it reaches 400 dollars per unit, and no certificate of occupancy will be issued for a property subject to the requirement that is not registered.
Is a registered rental unit a safe rental unit?
No, and Portland says so directly: acceptance of a registration form does not constitute a determination that the unit complies with the city code. Registration records who is responsible for a building. It is not an inspection, and it is not a certification. Habitability complaints go to the code office regardless of registration status.
How do I find out who owns my rental building?
In Portland, search the Citizen Self Service portal, which publishes registered rental properties. Everywhere else in Greater Portland, use the town assessor's online database, which lists the owner of record for every parcel and is public in every municipality in the region. The assessor's record shows the owner, not necessarily the property manager you deal with.