Mill Bay, Canada Short-Term Rental Regulations: A 2026 Guide For Airbnb Hosts

Do you own a place in Mill Bay and you're weighing whether to put it on Airbnb or Vrbo? Well, unfortunately for almost every address here the answer is no, and what stops you is the zoning rather than a permit you could go and apply for. Mill Bay isn't a town or a city, mind you. It's an unincorporated community inside Electoral Area A (Mill Bay/Malahat) of the Cowichan Valley Regional District, on southern Vancouver Island in British Columbia, which means the regional district writes the land use rules and there's no city hall of your own to lobby.

The CVRD is blunt about how narrow the opening is. Its own short-term rental page says most residentially zoned parcels don't permit the use at all, and that fewer than 100 parcels across the entire regional district do, with the CD-5 zone in Mill Bay, the Sandy Beach Cottages, named as the only one on this side of the valley. Then a second layer lands on top of that, because Area A has opted into British Columbia's principal residence requirement, so even where a short-term rental is allowed, an owner who lives somewhere else can't run one.

So let's walk through what that leaves you: the single zone that permits it, the bed and breakfast route that's open across much more of Mill Bay, what provincial registration costs in 2026, the three taxes that stack onto a nightly stay, how hard the CVRD pushes on enforcement, and who to phone when your address turns out to be a grey area. Every figure below comes from the CVRD's or the Province's own bylaws and pages, checked in July 2026. Before you spend anything at all, run the property through BNBCalc as a long-term or mid-term rental as well, since that's the comparison most Mill Bay owners end up making anyway.

Starting a Short-Term Rental Business in Mill Bay

That comparison starts with one question about your address, and it has nothing to do with licensing. What decides it is the zone your parcel sits in, because the CVRD South Cowichan Zoning Bylaw No. 3520 governs land use across Electoral Areas A and C, and section 4.2 of the current consolidation puts short-term rental on the list of uses prohibited in every zone unless a zone explicitly permits it. Nothing there is discretionary, so the use is either written into your zone or it isn't allowed at all.

The bylaw is specific about what it's banning, too, which matters if you were hoping to find daylight in the wording. It counts something as a short-term rental when the place is a self-contained home, someone pays to stay in it for fewer than 30 consecutive days, and neither the owner nor a long-term resident is living there during the stay. What triggers the rule, in other words, is your absence rather than the nightly rate or the platform you list on.

Going through the whole consolidated bylaw, exactly one zone in Mill Bay carries the use. Section 11.5 creates the CD-5 zone at Sandy Beach Cottages, where the principal use is residential recreational cottages and beach houses and short-term rental sits in the list of accessory uses.

That same section caps the site at 13 cottages and sets a minimum parcel size of 5,000 square metres, so this isn't a zone you can go out and buy into. It's one particular waterfront development that happens to carry the right words in its schedule. For everyone else in Mill Bay, the answer stays no unless you can get the zoning amended or a temporary use permit issued, and both of those come with a price tag I'll get to shortly.

What is broadly available, though, is the traditional bed and breakfast, and the difference between the two is worth understanding before you dismiss it. The bylaw defines bed and breakfast accommodation as the accessory use of a residential dwelling for the overnight temporary accommodation of transient paying guests, where breakfast is the only meal served and no guest room has a kitchen or kitchenette. Section 4.12 then attaches a set of conditions:

• It has to be contained entirely within a single detached dwelling that is the principal use on the parcel.
• It has to be conducted by the principal resident of that dwelling, who may employ no more than one additional non-resident person for the purpose.
• That principal resident has to be present whenever guests are staying. Step out for the weekend and the bylaw says you're running a short-term rental instead, which is prohibited.
• No more than four rooms per parcel may be used for guests at any one time.
• Where a renovation, addition or new build is needed to make it work, the building permit application has to show which rooms will be used.
• It has to be licensed by the CVRD under a business licence bylaw, if one is in effect.

A bed and breakfast is a real business, and it's listed as an accessory use across most of the residential and rural zones in Area A, the A-1 and A-2 agricultural zones among them. Do check your own zone rather than assuming, though, because the permitted-use lists differ schedule by schedule and the CVRD asks you to email Development Services to confirm.

Section 4.13 also lets you take in up to three boarders or lodgers, but not on top of a bed and breakfast running in the same house. It's one or the other.

Running a short-term rental anyway, on a parcel where the zoning says no, is an expensive way to find out you were wrong. Under section 2.5, any contravention of the bylaw is an offence punishable on summary conviction, with a fine of up to $50,000 or the current maximum under the Offence Act if that's higher, plus the costs of prosecution. And section 2.4 then counts every day the violation continues as a new and distinct offence, so a season of quiet non-compliance isn't one fine, it's one per day.

That distinction is the whole risk.

Tickets are capped separately, mind you, and the CVRD's fines and payment page puts the current maximum ticket penalty at $3,000, set by provincial regulation. That's the ceiling on a single ticket, not on how many you can be handed.

Assuming Mill Bay rules you out and you're open to somewhere else in British Columbia, the picture changes a lot once you cross into an incorporated municipality, where a council sets its own licensing rules instead of a regional district setting zoning for nine electoral areas at once. Our Chilliwack short-term rental guide and Maple Ridge short-term rental guide cover two Fraser Valley cities of that kind, while our Hope short-term rental guide and Merritt short-term rental guide cover smaller municipalities that each write their own rules.

Short-Term Rental Licensing Requirements in Mill Bay, Canada

Assuming your parcel is one of the rare ones that clears the zoning, or you're able to make the bed and breakfast route work instead, there's still a provincial registration waiting on top. British Columbia's registry is the closest thing to a licence that applies in Mill Bay, and it's run by the Province rather than by the CVRD, so no amount of goodwill in Duncan speeds it up.

The Province's host registration page sets the annual fee at $100 plus a $1.50 service fee where you live in the unit yourself, and $450 plus $1.50 where you don't, with a separate registration for every unit even if one unit carries several listings. The fee isn't refunded if the application is denied.

Registration runs a year, the renewal window opens 40 days before expiry, and reminder emails land at 40 days, 14 days and one day out. Once you're registered, your registration number, your local business licence number where a local government requires one, and the registered address all have to appear on every listing, and the address has to match exactly. A near-match is a mismatch.

One thing catches people out here, so let me put it plainly: registration doesn't authorise anything the zoning forbids. The Province says as much on its principal residence requirement page, where it calls its own rule "the minimum requirement, or a 'floor'" and adds that hosts "must continue to follow local bylaws in place". So a registration number on an unlawfully zoned listing is still a registration number on an unlawfully zoned listing, and it buys you nothing at all with the regional district.

As for a CVRD business licence, there isn't one to get yet, although the zoning bylaw is already written on the assumption that there will be. Section 4.12A says a permitted short-term rental "shall be licensed by the CVRD pursuant to a CVRD Business License Regulation Bylaw, should one be in effect", and section 4.12 says the same about a bed and breakfast.

The regional district's Bill 35 page still describes business licensing as something the board asked staff to explore, and I couldn't find a business licence bylaw, application or fee anywhere on the CVRD's site as of July 2026. So read that conditional wording as a rule waiting to be switched on rather than one you can ignore.

Regional districts only received the power to licence short-term rentals when the Province handed it to them, and the CVRD has been circling the question since 2024.

Two other pieces of section 4.12A are easy to miss. Where a short-term rental is permitted, no one person or group may occupy it for more than 29 consecutive days, which stops the use sliding quietly into a tenancy. And where the homes sit in a zone that already permits hotels, resorts, campgrounds and similar uses, the business licence requirement doesn't apply to them at all.

Changing your zoning is one route out of the prohibition, and a temporary use permit is the other, though be aware of what each costs before you get attached to the idea. Under CVRD Bylaw No. 4483, a zoning or land use bylaw amendment carries a $3,000 application fee plus a $150 file opening fee, plus advertising costs and density fees of $150 for each new dwelling or parcel the amendment permits, whereas a temporary use permit is cheaper at $1,200, with $600 to amend or renew one.

And the permit route is the one the bylaw itself points to, since section 4.12A allows short-term rental use where a temporary use permit "has been issued by the CVRD Land Use Services Department and has not expired".

How readily one gets issued is the open question of 2026. At its meeting on 27 May 2026 the board advanced a temporary use permit bylaw covering commercial and industrial uses only, and separately directed staff to report back on a potential streamlined temporary use permit for short-term rentals, including options for fees. So a streamlined permit is still a staff report rather than a form you can download, and do ask Land Use Services what's currently possible before you budget for one.

Required Documents for Mill Bay, Canada Short-Term Rentals

Since a rezoning at $3,000 is not something you want to start blind, it pays to gather the evidence in a sensible order, cheapest first. The one document that decides everything else costs nothing at all.

• Written zoning confirmation for your parcel. Email Development Services at [email protected] with the civic address and ask, in writing, whether a short-term rental is a permitted use. The CVRD directs people to exactly that inbox for the question, and a written answer is what you'll want in hand before you pay any fee.
• Proof of identity for the provincial registry. A BC driver's licence, a BC Services Card or a BC identification card.
• At least two supporting documents. The registry accepts a land title, a property assessment, an insurance policy, a property tax notice, a banking statement or government correspondence, and they need to tie you to the address you're registering.
• A tenancy agreement, if you rent. Tenants can register, but they have to show the agreement or a landlord's notice of rent increase.
• A local business licence number, where one is required. No such licence exists in the CVRD electoral areas today, so for now this field stays empty for a Mill Bay host.
• Building permit drawings showing the guest rooms, if you're going the bed and breakfast route and any renovation, addition or new construction is involved. Section 4.12 of the zoning bylaw requires the application to identify which rooms will be used.

Keep in mind that the listing itself is a compliance document too. The registration number, the business licence number where one applies, and the property address all have to be displayed and all have to match what the Province holds, so an old listing carrying a slightly different address is a problem waiting to surface.

Mill Bay, Canada Short-Term Rental Taxes

Assuming you manage to line all of that up and are able to take a booking, there's still tax to collect on it. Three separate charges attach to a short nightly stay in Mill Bay, and because two governments administer them between them, the exemptions don't line up either.

Charge	Rate	Collected by
GST	5%	Canada Revenue Agency, or the platform where the host isn't registered
PST on accommodation	8%	BC Ministry of Finance, or a registered online marketplace facilitator
Municipal and regional district tax	2%	BC Ministry of Finance, on behalf of the Cowichan Valley Regional District

The provincial pair is the one worth reading twice, since British Columbia's accommodation tax page sets PST on short-term accommodation at 8% and then lets participating areas add up to 3% in municipal and regional district tax on top of that. The Cowichan Valley's share of that 3% is fixed by the Designated Accommodation Area Tax Regulation, where Schedule 2 lists the Cowichan Valley Regional District at 2%, with a repeal date of 1 July 2027.

That date matters less than it looks, since these designations are routinely renewed, but it does mean the rate is not permanent.

Several exemptions can take you out of PST and MRDT entirely. Accommodation at $30 or less per day, or $210 or less per week, is exempt unless it's listed on an online marketplace. So is accommodation supplied to the same person for a continuous period of 27 days or more, which is why the mid-term furnished market sits outside this regime. And a provider earning less than $2,500 a year from accommodation, again with nothing listed online, is exempt as well.

Who hands the money over depends on where the booking came from, because a registered online marketplace facilitator has to collect both PST and MRDT, and if every one of your bookings comes through one, you don't need to register yourself at all.

Airbnb, for its part, confirms on its British Columbia tax page that it collects 8% PST and 2% to 3% MRDT on the listing price, cleaning fees and guest fees included, for reservations of 26 nights or shorter. Don't read that as a clean handover, though. The Province keeps sellers jointly and severally liable for tax a facilitator fails to collect, so a platform's mistake is still partly your problem.

GST is federal and works differently again. The CRA's guidance on platform-based short-term accommodation applies the 5% rate to accommodation occupied for less than a month at more than $20 a night. Collection then splits by registration status: a GST registered host charges and collects it themselves, including on platform bookings, while the platform collects where the host isn't registered. Registering yourself generally becomes mandatory once your taxable supplies pass $30,000 over four consecutive calendar quarters, which is the CRA's small-supplier test.

Potential Deductions and Write-Offs

The ordinary deductions apply to rental income here, mortgage interest, insurance, utilities, cleaning, repairs and the rest, apportioned where you're renting part of your own home. Then there's a federal rule that hits Mill Bay harder than it hits almost anywhere else, and it's the reason zoning is not merely a bylaw problem.

Section 67.7 of the Income Tax Act denies deductions outright for a "non-compliant short-term rental", which it defines as one operating in a place that doesn't permit short-term rentals, or one that fails to meet all applicable registration, licensing and permit requirements. The denied share is your expenses multiplied by non-compliant days over total short-term rental days.

Read that against a bylaw where nearly every Mill Bay parcel is a place that doesn't permit the use, and the effect is that an illegal listing here loses its expenses and pays tax on gross revenue. Remember that the CRA also receives host and property data directly from the platforms, so this isn't a rule that depends on a neighbour reporting you.

British Columbia Wide Short-Term Rental Rules

Compliant with what, exactly, is a fair question, and the answer sits in a provincial statute that rewrote the ground rules for every host in the province. That statute is the Short-Term Rental Accommodations Act, which passed in 2023. Its main provisions landed on 1 May 2024, aimed squarely at turning short-term rental units back into long-term homes.

Four pieces of it reach Mill Bay directly, and the Province's legislation page sets them out:

• The principal residence requirement. Where it applies, a host may only offer their principal residence, "the usual place where they make their home", plus one secondary suite or accessory dwelling unit on the same property.
• Legal non-conforming use protection is gone for short-term rentals. That grandfathering, which normally lets an existing use survive a bylaw change, was removed for this use type alone. An operation that predates the current zoning has no shelter.
• Bylaw ticketing fines went up. The maximum ticket a municipality, regional district or the Islands Trust can issue rose from $1,000 to $3,000 per infraction, per day.
• Regional districts can now licence. They were handed the power to regulate and licence short-term rentals in much the same way municipalities do, which is exactly the authority the CVRD is weighing up.

The principal residence requirement reaches Mill Bay by choice rather than by default. Regional district electoral areas are exempt from it automatically, but a local government can opt in by resolution submitted to the Province by 28 February, taking effect on 1 November of that year. The CVRD did opt in, and the Province's current list, as of 1 June 2026, names Cowichan Valley Regional District Electoral Area A (Mill Bay/Malahat) alongside Areas C, F and H.

Going the other way is harder: an opt-out needs a rental vacancy rate of 3% or more for two consecutive years. Bed and breakfasts are inside the requirement too, and may keep operating precisely because the owner lives on the property.

Registration is the layer that does the enforcing, and it works through the platforms rather than through inspectors, so the dates are worth knowing. The registry became mandatory on 1 May 2025, and from 2 June 2025 platforms had to stop advertising unregistered listings, then from 23 June 2025 cancel their future bookings outright.

So the Province's own summary of what happens to an unregistered host is short, and it's the whole enforcement story in one line: your listings are no longer advertised and your existing bookings are cancelled.

Some stays sit outside all of this, mind you, since bookings longer than 90 days fall outside the Act altogether, as do hotels, reserve land, time shares, home exchanges and seasonal accommodation that isn't suitable for year-round living.

Then there's the provincial enforcement arm. The Compliance and Enforcement Unit investigates hosts and platforms, issues compliance orders and administrative monetary penalties, can go to the Supreme Court for an injunction, and publishes its compliance decisions online where anyone can read them. When the rules were announced, the Province put those penalties at $500 to $5,000 per day per infraction for an individual and up to $10,000 per day for a corporation. Guests are never fined.

Does Mill Bay Strictly Enforce STR Rules?

Locally, the honest answer is that enforcement is reactive, and the CVRD says so itself. In its June 2026 planning update the CVRD recorded, in one sentence, that "short-term rental enforcement is currently on a complaint-basis", in the same breath as noting that it "values short-term rentals and how they support our local tourism industry". Those two lines together tell you most of what you need to know about the political weather in Area A.

The complaint mechanism is public and easy to use. The CVRD's bylaw complaints page explains that enforcement is primarily complaint-initiated and that the goal is voluntary compliance, with complaints taken by phone on 250.746.2655, by email at [email protected], or in person during business hours.

One detail cuts both ways for a host, mind you: the CVRD reserves the right not to respond to anonymous complaints, and asks every complainant for a name, address and phone number, which raises the bar for a neighbour with a grudge while doing nothing to protect a genuinely non-compliant listing.

The gap between what's legal and what's listed is real, and it's been measured. When the board voted on the opt-in in March 2024, the Cowichan Valley Citizen reported that just 83 parcels across all nine electoral areas were legally zoned for short-term rental, against upwards of several hundred properties listed at any given time on Airbnb and Vrbo.

Do not read that ratio as an invitation, though. It describes the position before the provincial registry became mandatory in May 2025, and the registry changed who does the enforcing.

Risk in Mill Bay works differently in 2026 than that ratio suggests. The CVRD may well never knock on your door, yet the Province doesn't need to, because an unregistered listing gets pulled by the platform and its bookings cancelled, without an inspector setting foot in Mill Bay.

Registration, meanwhile, requires an address that matches, which makes an unlawfully zoned listing easy to identify later. Add section 67.7 stripping the deductions on the tax side, and the exposure stops being a fine you can budget for and becomes three problems at once.

How to Start a Short-Term Rental Business in Mill Bay

Given how much of that turns on facts you can establish for free, the order below matters more than it looks. The first two steps decide whether the rest is worth any of your time or money.

1. Get your zoning in writing. Email Development Services at [email protected] with the civic address and ask whether a short-term rental is a permitted use on that parcel. Expect a no unless you're in CD-5, since the bylaw prohibits the use in every zone that doesn't name it.
2. If the answer is no, decide between a bed and breakfast and a rezoning. A B&B is permitted as an accessory use in most residential and rural zones, needs you living there and present during every stay, and is capped at four guest rooms. A rezoning runs $3,000 plus fees and is a board decision, not a counter transaction.
3. Check the principal residence requirement against your own situation. Area A is opted in, so the property has to be where you actually make your home, plus at most one secondary suite or accessory dwelling unit on the same parcel.
4. Register with the Province. Budget $100 plus $1.50 if you live in the unit, or $450 plus $1.50 if you don't, per unit, per year, non-refundable.
5. Put the numbers on every listing. Registration number, business licence number where one is required, and the registered address, matching exactly.
6. Sort out tax before the first guest. Confirm which platform collects 8% PST and 2% MRDT for you, decide whether you cross the $30,000 GST registration threshold, and don't forget that you stay jointly liable if a platform under-collects.
7. Diarise the renewal. The provincial registration lasts a year and the renewal window opens 40 days ahead. Letting it lapse means delisting, not a late fee.

Who to contact

CVRD Development Services answers the zoning question, takes rezoning and temporary use permit applications, and is the right first call for anything about permitted uses.

• Address: 175 Ingram Street, Duncan, BC V9L 1N8
• Land Use Services phone: 250.746.2620
• Main switchboard: 250.746.2500 or 1.800.665.3955
• Email: [email protected]
• Administration hours: Monday to Friday, 8:30 a.m. to 4:30 p.m., closed statutory holidays

CVRD Bylaw Enforcement, meanwhile, handles complaints and tickets, in both directions.

• Phone: 250.746.2655
• Email: [email protected]
• Hours for queries and complaints: 8:00 a.m. to 4:30 p.m., Monday to Friday

And the provincial short-term rental registry handles registration, renewals and anything about the provincial rules, through Service BC.

• Phone: 1-833-828-2240
• Email: [email protected]
• Hours: Monday to Friday, 7:30 a.m. to 5:00 p.m.

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

Given that the enforcement question keeps landing back on the board, it's no surprise the local argument has spilled well past the board table. What follows is my read of publicly reported discussion rather than any kind of survey, and a note on method: Reddit blocks automated access, so nothing here is drawn from a Reddit thread, and I found no Mill Bay or Cowichan Valley discussion on BiggerPockets worth characterising. Do weigh it accordingly.

The loudest local sentiment isn't from hosts defending their income, interestingly enough. It's from small operators and tourism businesses arguing that the valley needs the beds. Over 100 residents rallied outside the CVRD offices in Duncan in May 2026 over the temporary use permit proposals. Speaking there, Shane Ryan, president of the Malahat Historical Society and a candidate in Area A, put the case in terms of restaurants, vineyards and the Malahat SkyWalk losing visitors who have nowhere to sleep. Other speakers were angrier about cost, though, describing rules that would run small businesses tens of thousands of dollars.

Against that, the board's own framing in 2024 was about housing rather than tourism, with directors describing the aim as stopping homes from being turned into a business. Both positions are sincere, and both are visible in the compromise the CVRD has landed on: keep the zoning restrictive, opt into the principal residence requirement, enforce only on complaint, and keep studying a permit that might let a few more hosts in through a side door.

For an owner, the practical read is that Mill Bay is not a market you can enter on optimism about a rule change. The zoning is restrictive today, the provincial layer is enforced by platforms rather than by argument, and the one live proposal that might loosen anything is still a staff report. Assuming you're comparing regions rather than defending a property you already own, the numbers on the Canada short-term rental market page will tell you fairly quickly whether Vancouver Island is where the return actually is.

That's the broader lesson, and it travels well beyond one community on the Malahat. When a place regulates through zoning rather than licensing, there's no application to fill in and no fee to pay your way past. The question stops being what you're willing to do and becomes what your parcel is allowed to be, which is a question you can answer with one email before you ever spend a dollar.

Frequently Asked Questions

Can you legally run an Airbnb in Mill Bay in 2026?

On almost no Mill Bay property, no. The CVRD South Cowichan Zoning Bylaw No. 3520 lists short-term rental among the uses prohibited in every zone unless a zone explicitly permits it, and exactly one Mill Bay zone does: CD-5, the Sandy Beach Cottages development. The regional district says fewer than 100 parcels across the whole CVRD permit the use. A bed and breakfast in a home you live in is permitted much more widely, capped at four guest rooms, and it still needs provincial registration.

Do you need a licence for a short-term rental in Mill Bay?

Not from the regional district. There's no CVRD business licence for short-term rentals as of July 2026, and the regional district describes licensing as something it's still exploring. The zoning bylaw does anticipate one, requiring a licence "should one be in effect", so expect that to change. What you definitely need is registration with the B.C. short-term rental registry, at $100 a year plus a $1.50 service fee where you live in the unit and $450 plus $1.50 where you don't. Registration doesn't override the zoning, so it isn't permission to operate.

What taxes apply to a short-term rental in Mill Bay?

Three. GST at 5%, provincial sales tax on accommodation at 8%, and municipal and regional district tax at 2% for the Cowichan Valley Regional District. A registered online marketplace facilitator such as Airbnb collects the 8% and the 2% for reservations of 26 nights or shorter, and collects GST where the host isn't GST registered. Stays of 27 continuous days or more to the same person are exempt from PST and MRDT.

What happens if you run an unpermitted short-term rental in Mill Bay?

Three things can stack. The zoning bylaw makes it an offence punishable on summary conviction with a fine of up to $50,000 plus prosecution costs, with each day counted as a separate offence, and CVRD tickets run to a maximum of $3,000. The Province can add administrative penalties of $500 to $5,000 a day for an individual. And section 67.7 of the Income Tax Act denies your rental expense deductions for the days the operation was non-compliant.

Can you run a bed and breakfast in Mill Bay instead?

Usually yes, and it's the realistic route. Bylaw 3520 permits bed and breakfast accommodation as an accessory use in most residential and rural zones in Electoral Area A. It has to sit inside a single detached dwelling that is the principal use on the parcel, be run by the principal resident, who must be present throughout every stay, use no more than four rooms for guests, and employ at most one non-resident. Breakfast is the only meal you may serve, and provincial registration still applies.

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