Westport, Ireland Short-Term Rental Regulations: A 2026 Guide For Airbnb Hosts

Do you own a place in Westport, County Mayo and you're weighing whether to put it on Airbnb or Vrbo? Well, the good news is that nobody has banned it, and at 6,872 people, the figure Mayo County Council's own Westport Local Area Plan 2024-2030 takes from Census 2022, the town is small enough that the policy coming down the tracks treats it far more gently than it treats Dublin or Galway. The catch is that on 1 March 2026 the law stopped caring where your property sits. Section 30 of the Residential Tenancies (Miscellaneous Provisions) Act 2026 rewrote section 3A of the Planning and Development Act 2000 so that letting a house, part of a house or a unit for 21 consecutive nights or fewer is now a material change of use. In Irish planning language that means you need permission for it, unless one of the exemptions covers you.

Westport owners have been living with that requirement longer than most of the country, though, because the Westport Local Electoral Area was designated a rent pressure zone in June 2023 and rent pressure zones were what triggered the older version of the same rule. Those zones were abolished on the very day the new section 3A took effect, mind you, so the trigger no longer hangs on a designation that can lapse. What hasn't caught up is Mayo County Council's own short-term lettings page, which as of July 2026 still describes the rules as applying only inside a rent pressure zone and still gives the old 14-day definition. So make sure you're planning around the Act rather than around that page.

So let's walk through what it actually takes to do this properly in Westport: which of three very different shapes your letting falls into, whether you need permission or only a form, what the planning fee comes to, the tax layers Revenue expects you to handle, how hard any of it gets enforced today, and who to ring at Mayo County Council when you get stuck. Every figure below comes from the Act, the statutory instruments, Revenue or the council's own pages, checked in July 2026, and where something is genuinely unresolved I've said so rather than smoothed it over. Since you'll probably be weighing Westport against a few other Irish towns before you commit, run the property through BNBCalc first.

Starting a Short-Term Rental Business in Westport

Before you run any numbers, it's worth knowing which of those three shapes you're in, because the paperwork and the odds of getting a yes change completely between them.

The first shape is home sharing. You live in the house, you keep living in it, and you let out rooms to paying guests around yourself. The second is letting your whole principal private residence while you're away, capped at 90 days in a calendar year, which suits somebody who spends winters elsewhere. Both of those sit inside the exempted-development categories that S.I. No. 235 of 2019 inserted into the Planning and Development Regulations 2001, so neither needs planning permission, though both need you to notify the council in writing.

The third shape is the one most investors have in mind, a second property with nobody living in it, let by the night all year. That one is a material change of use, and it needs a grant of permission from Mayo County Council before it's lawful.

Unfortunately for anyone in that third group, Westport is exactly the kind of town where councils have started saying no. The Economic and Social Research Institute measured this directly in Research Series 208, published on 25 April 2025, and found that the Airbnb market in the Westport electoral area runs at 31.5 per cent the size of the local private rental sector, which works out at roughly one Airbnb listing for every three private rental homes.

That one-in-three ratio was the highest of any rent pressure zone in the country at the time, and for context the private rental sector accounts for only about 17.7 per cent of all residential property in the area, so a town of under seven thousand people is carrying a short-term letting stock that a city would notice.

And the council has already put that in writing about its own town, in the Westport Local Area Plan adopted on 27 May 2024. That plan records "approximately 300 registered short term tourist accommodation lets in the Westport town area", and it says the growth of short-term tourist accommodation "has significantly impacted" the town's balance between jobs and resident workers.

Once a planning authority has written a sentence like that into a statutory plan, it becomes something a planner can quote back at you in a refusal.

There is one route the county plan does actively welcome, and it's the one people overlook. Objective TRO 20 of the Mayo County Development Plan 2022-2028 commits the council "to positively consider the (part) conversion of existing dwellings to Bed & Breakfasts (B&Bs) and Guesthouses, to be operated by the owner-occupier of the dwelling". That's a different business from an unhosted Airbnb, since you have to live there and run it, yet it's the one form of paid guest accommodation in a Westport house that county policy says yes to in advance.

Short-Term Rental Licensing Requirement in Westport

Notice what none of that involved, because it catches people out constantly: there is no short-term rental licence in Westport. Mayo County Council issues no permit, no registration certificate and no number of its own for a holiday let, so what you're dealing with instead is a planning consent, a notification, and from December a national register, and those three do completely different jobs.

Take the unhosted second property first, since that's the one that needs a consent. It's a change of use planning application to Mayo County Council. Citizens Information sets out the fee that applies to a short-term letting change of use as €3.60 per square metre with a minimum of €80 per building, which for a normal house means the €80 floor.

Assuming you've already been letting without permission, though, you still can't apply for ordinary permission after the fact. You apply for retention instead, and that costs €10.80 per square metre with a minimum of €240. Do check whether your house carries any existing planning condition that a holiday use would breach, since that's a separate problem from the change of use itself, and remember that a refusal, or a condition you can't live with, can be appealed to An Coimisiún Pleanála.

For the two exempted shapes there's no application and no fee at all, though there is still a notification, and Mayo County Council's short-term lettings page says so plainly, that "the Planning Authority will retain a record and there is no Planning fee regards same".

You send in Form 15, and Forms 16 and 17 as well where the 90-day category applies to you, each one carrying a statutory declaration you sign. Miss them and you lose the exemption, which turns a lawful letting into an unauthorised one overnight.

One genuine complication sits underneath all of that, and I'd rather flag it than pretend it away. S.I. No. 235 of 2019 has never been amended, and its wording exempts short-term letting "in a rent pressure zone" while taking its definitions from the old section 3A, the one deleted on 1 March 2026. No replacement regulation has been made. The forms are still published, the council still accepts them, and Citizens Information still treats the 90-day cap as live, so in practice the exemption is being operated.

Even so, put your own situation to Mayo County Council in writing at [email protected] and keep the reply, because a written answer from the planning authority is worth a great deal more than a form you posted into a gap in the legislation.

Then there's the register, which is new and national and applies to Westport whether you needed permission or not. The Department of Enterprise, Tourism and Employment confirmed in a press release updated on 6 August 2026 that the Fáilte Ireland short-term letting register opens on 1 December 2026, with a legal obligation on every operator to be registered by 31 December 2026.

It covers anyone offering paid accommodation for stays of up to and including 21 nights, per unit, and your registration number then has to appear on every listing and advertisement. Renewal is annual. The fee hasn't been announced, and Fáilte Ireland has said only that fees will be kept to a minimum, so treat any number you see quoted for it as somebody's guess.

Required Documents for Westport Short-Term Rentals

Since none of those three routes shares a document with the others, it's easier to think of them as three separate piles of paper rather than one application.

The exemption pile is the shortest, and it's the one with hard dates attached:

• Form 15, the start-of-year notification. Home sharers file it once. Anyone letting a whole principal private residence while away files it every year, either within four weeks of the start of the year or at least two weeks before the first letting of that year, whichever applies to you.
• Form 16, the 90-day notification. This one only exists for the away-from-home category, and it goes in no later than two weeks after the day you hit 90 days of letting.
• Form 17, the end-of-year notification, confirming how many days you actually let. It's due in January for the year just finished.
• A signed statutory declaration on each form. Mayo County Council hosts all three as downloads on its short-term lettings page.

The planning pile is what Mayo County Council asks of any applicant. Its apply for planning section wants the planning application form, the council's own application checklist, a site notice put up using the council's template, and a newspaper notice placed in a paper from the council's approved list for that year. The fee goes in with the application, and since the council says an application "cannot be accepted until you submit the required information in full", a missing checklist item costs you the whole lodgement rather than a phone call.

The register pile is the one nobody has had to assemble yet. The Department of Enterprise has said registration will require a legal declaration that the property complies with planning, building control and fire safety requirements, which is a meaningful ask for an older Westport townhouse. Keep in mind that you'll be signing that declaration about the same property you may also be asking the council to grant a change of use for, so the two are hard to keep in separate boxes.

Westport Short-Term Rental Taxes

Assuming you clear the planning question and are able to start taking bookings, there's still tax to sort out, and the first thing to unlearn is the word "rental".

Revenue does not treat short-term letting income as rental income at all. Because your guest holds a licence to occupy rather than a tenancy, Tax and Duty Manual 04-01-20 puts the money under Case I as a trade where you're running it like one, or Case IV as occasional income where you aren't, and never under Case V. That distinction decides which expenses you can set against it and which form you file, so it's worth getting right in year one rather than unpicking later.

The second thing to unlearn is rent-a-room relief, because plenty of Westport home sharers assume the €14,000 exemption covers them and it doesn't. The relief needs a letting of at least 28 consecutive days, and Revenue's manual on the relief puts it "beyond doubt that the relief does not apply to short term tourist accommodation based on home sharing, including where it is provided through online booking sites", so a weekend guest is taxable from the first euro.

Here's how the layers stack for 2026:

Charge	Rate in 2026	Who you pay
Income tax on the profit	20% on the first €44,000 for a single person, 40% on the balance	Revenue
Universal Social Charge	0.5% to €12,012, then 2%, then 3%, then 8% on the balance	Revenue
VAT on the accommodation	13.5%, and only once turnover passes the €42,500 services threshold	Revenue
Local tourist, bed or occupancy tax	None in force	Nobody

The income tax row and the VAT row each need a word of explanation. The income tax bands and the USC thresholds apply to your total income, not to the letting on its own, so a Westport spare room bolted onto a full-time salary is usually taxed at the top marginal rate rather than the bottom one. And Revenue's manual on guest and holiday accommodation is explicit that "web-based guest and holiday accommodation" sits at the 13.5% reduced rate whatever the length of stay, which only bites once you cross the €42,500 registration threshold for services. Most single-property hosts in Westport never get near that, and a two or three property operator can get there faster than expected.

The last row is the one people find hardest to believe. Ireland has no national tourist tax and no municipal bed tax, and Mayo County Council has no power to levy one, so a Westport guest pays nothing that a Barcelona or Amsterdam guest would recognise. Councils have been lobbying for the power, so that may not hold forever, though nothing is in force today.

Don't assume the platform handles any of this for you, because Airbnb's own help article explains that it applies 23% Irish VAT to its service fees, meaning the fee it charges you, and not to the accommodation you sell. That leaves the tax on the stay itself yours to declare on a Form 11 or a Form 12. I didn't verify how Vrbo and Booking.com handle the same question, so do check your own statements rather than assuming the treatment carries across.

Ireland Wide Short-Term Rental Rules

None of that tax picture was set in Westport, mind you, and the same goes for almost everything else in this guide. Ireland has no regional layer for short-term letting, so the town's rules are national rules applied by one of 31 local authorities.

The spine is section 3A of the Planning and Development Act 2000, which in its original 2019 form caught only houses "situated in a rent pressure zone" and defined short-term letting as a letting "not exceeding 14 days". The 2026 substitution stripped both of those limits out, so the operative sentence now reads, in full, "The use of a house, part of a house or unit for short term letting purposes is a material change in the use of the house, part thereof or unit, as the case may be."

Short-term letting itself means a letting "on a professional or non-professional basis" for "a period not exceeding 21 consecutive nights" in return for payment, and since it covers a licence as readily as a tenancy, the informal weekend arrangement sits inside the definition too.

Rent pressure zones went at the same moment. Section 2 of the same Act repealed the machinery behind them on 1 March 2026, which is why the Westport order from June 2023 is now a historical document rather than a live one. Worth reading anyway, if only because it is the reason Westport hosts have had this conversation with their council for three years while hosts an hour up the road have not.

Two things are still coming. The register lands on 1 December 2026 and brings Fáilte Ireland into a sector no national body has ever policed, with platforms barred from listing a unit that has no valid number.

Alongside it sits a draft National Planning Statement on short-term letting, approved by Government on 17 June 2026, and its proposals are worth knowing because Westport lands on the favourable side of them. The Department of Enterprise's announcement of the draft says that "for operators in locations with a population of over 20,000, there will be a presumption not to grant planning", whereas providers in areas of 20,000 or less get something much softer, namely "a two-year period to achieve planning compliance". Operators of more than seven years standing do better again, since they would get a presumption in their favour under established use rights, and Westport's 6,872 people put the town comfortably under that population threshold.

Be aware, though, that the statement is still a draft going through environmental assessment and EU notification, with a final version expected in the autumn, so nothing in it is law yet.

Because the framework is national, the differences between Irish towns come down to what each council does with it, and those differences are real. The Bundoran guide and the Dungarvan guide cover coastal towns in much the same size bracket as Westport, the Clonakilty guide covers a west Cork market with a similar tourism profile, and the Limerick guide shows what the same statute looks like in a city that would sit on the wrong side of the 20,000 line.

Does Westport Strictly Enforce STR Rules?

What each council actually does with the statute is the real question, and for Westport the honest answer so far is not very much. The numbers behind that are worth seeing, though, before you draw the obvious conclusion from them.

The Economic and Social Research Institute pulled the planning data for every rent pressure zone in the country and set it beside the listings, and the gap isn't close. In 2023, councils across all of those zones received 91 short-term letting change of use applications between them, alongside 491 Form 15 notifications and 180 Form 17s, against 9,142 entire-property Airbnb listings inside the same zones, and the 2022 figure for applications was also 91.

The report's own verdict on that is blunt, since it says "the listings far outweigh the numbers of change of use planning applications received" and then calls the policy ineffective in as many words. Westport was one of those zones, and nothing in the data suggests it was the exception.

The economics explain why. The same research found that a coastal property needs to be let only six to eight nights a month to match what it would earn in the long-term rental market, so the return on ignoring the rule has been very large and the observed cost of ignoring it very small.

That said, the cost isn't zero, and the shape of it matters more than the size. Mayo County Council's short-term lettings page warns that failing to notify "is a breach of the planning code and will result in planning enforcement under Part VIII of the Planning Acts". Section 3A itself carries an offence: contravening a penal provision of regulations made under it leaves you liable on summary conviction to a class A fine, which the Fines Act 2010 defines as a fine not exceeding €5,000.

And under section 156 of the Planning and Development Act 2000, continuing a planning offence after conviction is a fresh offence on every single day it continues, with imprisonment of up to two years available on indictment. A fine you can absorb; a daily fine plus an enforcement notice telling you to stop is a different animal.

There's also a clock running in your favour that most hosts don't know about. Mayo's planning enforcement page notes that the authority "may be statute barred from taking any enforcement action on unauthorised development if the statutory time limits have passed", under section 157(4) of the Act. That's the same seven-year idea the draft National Planning Statement wants to convert into a presumption in favour of long-standing operators, and it's why anyone who has been letting a Westport property continuously since well before 2019 sits in a materially stronger position than somebody who started in 2024.

What genuinely changes from December is the enforcement channel. Up to now a council had to find you, usually because a neighbour complained. Once the register is live, Fáilte Ireland holds a national list, platforms may only carry units that appear on it, and Fáilte Ireland can share that data with local authorities to support planning enforcement. Platforms face administrative penalties of up to 2% of turnover for listing unregistered units, which is the number that tends to change a platform's behaviour. So the honest read is that Westport has not enforced this hard, and that the reason it hasn't is about to be removed.

How to Start a Short-Term Rental Business in Westport

Since that window is closing, the order of the steps below matters more than it looks, and the early ones tell you whether the later ones are worth the money at all.

1. Decide which of the three shapes you're actually in. Home sharing while you live there, letting your whole home for under 90 days while you're away, or an unhosted second property. Everything else follows from this answer.
2. Read your own title and any existing permission. A condition attached to a previous grant, or a covenant on the house, can rule out a holiday use before the council ever gets a say.
3. If you're exempt, notify before you let, not after. Form 15 goes to Mayo County Council at [email protected] two weeks ahead of your first letting of the year, or within four weeks of the year starting where the use already exists.
4. If you need permission, talk to a planner before you lodge. Mayo County Council runs pre-planning consultations, and a change of use in a town whose own local area plan flags short-term letting as a pressure is exactly the sort of application worth testing informally first.
5. Budget the real cost of the application. The €80 minimum fee is the small part. Drawings, a site notice, a newspaper notice and, quite often, a planning consultant are the rest of it.
6. Apply for retention rather than permission if you're already letting. It costs €240 minimum instead of €80, and applying for ordinary permission for a use that already exists gets the application invalidated.
7. Register with Revenue and pick your case. Case I or Case IV, Form 11 or Form 12, and keep the receipts from day one, because apportioning household costs after the fact is miserable.
8. Watch the VAT line as you grow. €42,500 of turnover on services is not far away for two well-occupied properties in a Wild Atlantic Way town.
9. Diary 1 December 2026. The Fáilte Ireland register opens then and the legal deadline to be on it is 31 December 2026, with the number required on every listing you run.

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

Whichever of those steps you get stuck on, two council offices cover almost all of it between them.

Short-term letting notifications and planning

The Mayo County Council Planning Department in Castlebar is the planning authority for Westport, and it runs a dedicated mailbox for short-term letting.

• Address: Mayo County Council Planning Department, Áras an Chontae, The Mall, Castlebar, Co. Mayo, F23 WF90
• Short-term letting email: [email protected]
• Short-term letting phone: 094 906 4000 or 094 906 4999
• General planning email and phone: [email protected], (094) 906 4300
• Useful to have ready: your planning reference in the format P10/123, or a pre-planning reference in the format Pl.16.001, which the council asks for to speed up any query

The Westport counter

The Westport-Belmullet Municipal District office is the local face of the council and the easier call for anything general about the town.

• Address: Westport Civic Offices, Altamont Street, Westport, Co. Mayo, F28 W248
• Phone: 094 9064600
• Email: [email protected]
• Opening hours: Monday to Friday, 9.30am to 1pm and 2pm to 4.30pm, closed for lunch in between

Appeals, the register and tax

• An Coimisiún Pleanála takes appeals against a Mayo County Council planning decision, and the appeal window is short, so check the date on your decision the day it arrives.
• Fáilte Ireland runs the national register and publishes its own short-term letting FAQ, which is where any announcement about the registration fee will land.
• Revenue handles income tax, USC and VAT. Nothing about tax goes through the council, and nothing about planning goes through Revenue.

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

Ring any of those numbers and you'll hear the same thing Irish hosts say to each other, which is that the loudest theme right now is confusion rather than anger. What follows is my read of public discourse and of what has been said in the council chamber, not a survey, so do weigh it as that.

The clearest evidence is local and on the record. At a Westport/Belmullet municipal district meeting in June 2025, councillors pressed Mayo County Council for plain guidance on the rules, with Cllr Chris Maxwell putting it as directly as anyone has: "People are confused about the situation. They don't know if they're legal or not." Cllr Gerry Coyle pushed back on the idea that hosts are dodging Revenue, saying "this idea that they're not paying tax is a myth, you can't even register without a tax number".

The district head referred members to Citizens Information; the members asked for something the council wrote itself. Reading that exchange next to a council web page that still describes a repealed rent pressure zone regime, you can see their point.

Three other themes recur wherever Irish hosts discuss this, and they're consistent enough to be worth naming:

• The split is between hosts who live in the property and hosts who don't. Home sharers mostly find the regime tolerable, since a form and a declaration is not a heavy ask. Owners of second properties are the ones facing a real planning decision with a real chance of refusal.
• Rural hosts argue tourism capacity, not housing. In parts of west Mayo with no hotel, short-term lets are the accommodation, and that argument gets made forcefully at council level. It's also the argument the draft planning statement partly accepts by treating towns under 20,000 differently.
• Nobody expects the current enforcement gap to survive the register. The mood among longer-standing hosts is about establishing use rights before December rather than about staying invisible after it.

If you want to see how the underlying economics compare across the country before you commit to any of this, the numbers for the Ireland market are the sensible place to start, since the planning answer and the revenue answer have to work together.

There's a general lesson in all of this that outlasts any one town. When a rule depends on a designation, it lives or dies with that designation, and when the designation goes the rule usually gets simpler and wider rather than disappearing. Anyone who spent three years asking whether their address was inside a boundary now has a much easier question to answer and a much harder one to satisfy.

Frequently Asked Questions

Do I need planning permission to run an Airbnb in Westport in 2026?

If the property isn't your home, yes. Since 1 March 2026, section 3A of the Planning and Development Act 2000 treats letting any house, part of a house or unit for 21 consecutive nights or fewer as a material change of use, which requires permission from Mayo County Council. Two exemptions survive: home sharing while you live in the property, and letting your own principal private residence for up to 90 days a year while you're away. Both need written notification to the council.

How much does it cost to apply for a short-term letting change of use in Mayo?

The planning fee is €3.60 per square metre with a minimum of €80 per building, so most houses pay €80. Applying to retain a use that already exists costs €10.80 per square metre with a minimum of €240. Notifying the council that you qualify for an exemption is free, and Mayo County Council states there is no planning fee for keeping that record. Drawings, notices and professional fees sit on top of the application fee.

When does the Fáilte Ireland short-term letting register open?

The register opens on 1 December 2026, with a legal obligation on every operator to be registered by 31 December 2026. It applies nationwide to anyone offering paid accommodation for stays of up to and including 21 nights, registration is per unit, and renewal is annual. The registration number must appear on every listing and advertisement, and platforms will only be allowed to carry units holding a valid number. The fee has not been announced.

Is there a tourist tax or bed tax on a Westport short-term let?

No. Ireland levies no national tourist tax and no occupancy or bed tax, and Mayo County Council has no power to charge one, so a guest in Westport pays nothing of that kind. Your tax exposure is income tax and USC on the profit, plus VAT at 13.5% once your turnover passes the €42,500 services threshold. Airbnb charges 23% Irish VAT on its own service fees, which is a separate matter from tax on the stay.

What happens if I let a Westport property without permission?

Mayo County Council can take planning enforcement action under Part VIII of the Planning Acts, and continuing an offence after conviction is a fresh offence for every day it continues, with a class A fine of up to €5,000 available on summary conviction. Enforcement has been light historically: across all rent pressure zones in 2023 councils received just 91 change of use applications against 9,142 entire-property listings. That gap narrows once the national register gives councils a list to work from.

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