From May 2026 a new EU regulation reshapes how short-term lets in Bulgaria are registered, reported and policed. Here is what British expat hosts need to do before the deadline bites.
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The new framework is less a single rule than a set of obligations that lock together. Understanding the shape of it first will save you a lot of reading later.
EU Regulation 2024/1028 is a directly applicable regulation, which in plain English means Bulgaria does not need to pass its own law for it to bite. From the application date in May 2026, every host offering short-term accommodation through an online platform must hold a registration number and supply a defined set of data to the relevant national authority.
This sits alongside, not in place of, Bulgaria's existing ESTI classification system (the Единна система за туристическа информация, the unified tourism information register). ESTI has been the backbone of Bulgarian accommodation regulation for years. If you already have a categorisation certificate for your apartment or guesthouse, you are roughly half the way there. If you have been operating quietly without one, the new EU layer is the moment that becomes untenable, because platforms will be obliged to check.
The practical consequences for a British expat running a flat in Sofia, a coastal apartment near Burgas, or a village house in the Strandzha are the same. You need:
The regulation also obliges platforms to deactivate listings that lack a valid number after a grace period. In other words, the enforcement mechanism is partly outsourced to Airbnb, Booking.com and Vrbo themselves. They have done this before in cities like Amsterdam and Paris, and they do it quickly when their own compliance is on the line.
The most common misreading I hear from new hosts is that the rules only catch people running a business. That is not what the regulation says.
The regulation captures anyone offering short-term accommodation services for remuneration through an online platform. That language is deliberately broad. It pulls in:
The one carve-out worth knowing: if you let purely by word of mouth, family network or a private website you run yourself, the platform-reporting parts of the regulation do not apply to you. Bulgarian domestic tax and ESTI rules still do, however, and those have not got any softer.
There is also a persistent myth among British expats that having a Bulgarian limited company (an OOD or EOOD) somehow exempts you, or alternatively that being a private individual exempts you. Neither is true. The regulation treats the activity as the trigger, not the legal form of the person doing it. Your tax treatment differs depending on structure, but your registration and reporting duty does not.
If you bought a flat in a coastal resort as a holiday home and let it for the summer to cover the management fees, you are in scope. The casual nature of the letting is irrelevant to the platform; what matters to them is that money changed hands through their system.
ESTI is the older system and the one British hosts most often get wrong. Get this right and the EU registration becomes a paperwork formality.
ESTI categorisation is the Bulgarian state's way of saying that an accommodation unit has been inspected, meets minimum standards, and is on the official register. It applies to hotels, guesthouses, family hotels, holiday villas and self-catering apartments. The category (one to five stars, or the equivalent for guesthouses) determines part of what you can charge and how you must present the property.
For a typical expat-owned apartment let to tourists, you will be looking at either:
The application is made through the municipality where the property sits. Documents required typically include proof of ownership, a floor plan, fire safety paperwork, and confirmation that the building's bylaws permit short-term letting. That last one catches a lot of people: many newer apartment blocks have building rules forbidding short-term lets, and a complaining neighbour can derail your categorisation faster than any tax inspector.
Once categorised, you receive a certificate with a unique number. That number, paired with your forthcoming EU registration number, is what platforms and the tax office will want to see. Treat them as your two most important documents as a host.
Bulgaria adopted the euro on 1 January 2026, which means everything to do with your hosting income is now denominated in euros. Several British hosts I know got caught flat-footed by this.
Your platform payouts, your invoices, your tax declarations and your ESTI fee schedule are all in euros now. If your guests pay in another currency, the platform converts at the point of payout. There are no more leva on your statements. For practical advice on the wider changeover, our guide to the euro transition walks through bank-account conversion, contracts in legacy leva and the bookkeeping pitfalls.
For tax, three things matter. First, hosting income is taxable income, full stop. The exact category depends on whether you operate as a private individual or through a Bulgarian company, but in both cases the income must be declared. Second, the new EU regulation gives the Bulgarian tax authority a direct data feed from the platforms, so the era of quietly under-declaring summer earnings is effectively over. Third, the VAT threshold and tourist tax (a small per-night municipal levy) are unaffected by the EU regulation but interact with it; your ESTI categorisation determines the tourist tax band.
Keep a simple monthly spreadsheet. Date in, date out, number of guests, nightly rate, platform fee, cleaning fee, tourist tax collected. When (not if) the authorities cross-reference your platform feed against your declaration, that spreadsheet is what saves you a stressful afternoon.
If you are still working out the basics of running a small business in Bulgaria, the guide to expat-friendly accountants and bookkeeping is the place to start.
Airbnb, Booking.com and Vrbo have already begun building the compliance workflows. Expect to see prompts in your host dashboard well before May 2026.
Each platform will route you through a short verification flow. Based on similar rollouts elsewhere in the EU, expect them to ask for:
The key behavioural change is that listings without a verified number will be hidden or removed from search. This is not the platforms being officious; it is them protecting themselves from regulatory fines that, under the new framework, can be substantial. Airbnb in particular has spent years dealing with city-level rules in places like Barcelona and Paris and has the muscle memory for fast delisting.
If you operate through a property management company, double-check who is the legal host of record. In some setups the company holds the listing and you are an off-platform beneficiary; in others you are the host and the company merely manages the inbox. The compliance burden sits with the host of record, and a surprising number of British owners have only a hazy idea which one applies to them. A ten-minute conversation with your manager now will save weeks of untangling later.
These are the avoidable mistakes I see repeatedly, drawn from conversations with British expats running flats from Sofia to Sozopol.
Assuming your Bulgarian lawyer will handle everything. Many will, but you must brief them. ESTI categorisation is a municipal matter and is not automatic with a property purchase. If you bought a flat and the previous owner had a categorisation, it does not transfer to you.
Letting before categorisation is in place. The temptation to take the first summer's bookings before the paperwork lands is enormous. Resist it. A complaint from a neighbour or a competitor (and competitors do complain in tourist towns) lands you a fine and a much harder application process.
Confusing the EU regulation with the Schengen and Brexit border rules. These are separate. The EU regulation governs your hosting business. Your own right to spend long periods in Bulgaria is a different conversation, covered in our residency and visa guide. If you are juggling Schengen 90-in-180 days plus running a flat, get both sides sorted at the same time.
Underestimating the building's bylaws. Newer blocks, particularly in Sofia, Plovdiv and the coastal cities, increasingly forbid short-term lets in their internal rules. A vote of the residents' association can change those rules with you in the room or without you. Attend the meetings, even when they are conducted in Bulgarian at unhelpful hours.
Ignoring the tourist tax. It is small, it is municipal, and it is the easiest thing for an inspector to nail you on because it is collected per guest per night. Quietly diligent record-keeping here removes 90 percent of your risk.
Using guest reviews as a substitute for compliance. Five-star reviews do not protect you from a regulatory inspection. They are wonderful for bookings and irrelevant to the inspectorate.
Working backwards from the application date, there is a sensible order in which to tackle the moving parts.
Now to early 2026. Confirm your ESTI categorisation is current and matches the property as it actually is. If you have done any structural work, added a bathroom or changed sleeping capacity, your categorisation may need re-issuing. This is the longest-lead-time item; municipal processing can take months.
First quarter 2026. Get your tax affairs into a clean state. File any outstanding declarations. If you operate through a company, make sure the registered activity codes include short-term accommodation. Talk to your accountant about whether the new platform-reporting feed will surface income you have not declared.
Second quarter 2026. Watch for the Bulgarian implementation guidance on the EU registration number. The single point of contact and the exact application route may be hosted by the Ministry of Tourism or routed through ESTI itself. Whichever it is, apply as soon as the portal opens. Early applicants in every other EU country have had a smoother time of it.
By 20 May 2026. Your registration number is in place, visible on every platform listing, and your record-keeping system is ready to feed the monthly reporting. Confirm with your platform that they have your number on file. If a listing of yours quietly disappears from search results in late May, this is almost certainly why.
After May 2026. Treat it as a normal regulated business. Keep records, file on time, watch for amendments to the regulation. The EU has form for tightening these rules after the initial rollout once it sees how hosts and platforms respond.
For most British expat hosts, yes. The new rules formalise what serious hosts were already doing and squeeze out the cowboys. That is a net positive for the people who plan to be in this for the long run.
Bulgaria remains one of the more attractive short-term-let markets in the EU. The cost base is lower than Western European equivalents, the tourist demand is recovering well from the pandemic-era dips, and the country's location on the Black Sea, in the Balkans and within Schengen makes it accessible to a wide range of guests. Brits, Germans, Romanians, Turks and Israelis all feature in a typical coastal property's guest book.
What the new regulation does is raise the bar for entry and reduce the discount that compliant hosts effectively suffer compared to non-compliant neighbours. If you have been running things properly all along, your relative position improves. If you have been winging it, the next six months are the moment to either get serious or get out.
The Bulgarian state has been slowly modernising its tourism oversight for years, and the EU regulation is the moment all of that becomes joined-up. Combined with the euro adoption in January 2026 and the ongoing tightening of property and tax data systems, this is a market that is becoming more legible, not less. Legible markets reward patient, properly run small businesses. They punish the careless.
For British expats already invested in Bulgaria, hosting remains a sensible way to generate income from a property you already own. The administrative load goes up; the long-term returns for compliant operators look, if anything, better. Tackle the paperwork in the order above and you will be ahead of most of your competition by the time the new rules take effect.
No. You can host as a private individual with a personal identification number (EGN) or as a company. The new EU regulation does not require any particular legal form. The choice between private and corporate hosting is driven by your tax position, your total income and how many properties you run, not by the registration regulation itself. Talk to a Bulgarian accountant before you decide; the answer is genuinely different for someone with one summer flat versus someone with four year-round lets.
Two things, in sequence:
In practical terms, the delisting hurts first and hardest because it kills your booking pipeline overnight. The fines follow if you continue to operate. Getting your number in place even a month or two late is far better than not at all.
Yes, if you let through a platform. The regulation is activity-based, not volume-based. A British expat letting their Bansko apartment for six weeks of ski season is covered just as much as a full-time host in central Sofia. The only practical exception is purely informal, off-platform letting to people you know, which carries its own tax obligations but falls outside the platform-reporting regime.
No, but it is the prerequisite. ESTI tells the Bulgarian state your property is legitimate accommodation. The EU registration number is a separate identifier issued under Regulation 2024/1028, and platforms will need both. Think of ESTI as your driving licence and the EU number as your insurance certificate: related, both required, neither substitutable for the other.
Everything is in euros from 1 January 2026 onwards. Platform payouts arrive in euros, your invoices are in euros, and your tax declaration uses euros. For any historical bookings or payments that straddled the changeover, your accountant will apply the official conversion rate of 1 EUR = 1.95583 BGN. Keep both currency versions of any pre-2026 records for at least the standard statute of limitations period.
Yes, in some circumstances. The owners' association of an apartment block can vote to prohibit short-term letting in the building's internal rules, and many newer Bulgarian blocks have already done so. Once that decision is taken, the municipality can refuse or withdraw your ESTI categorisation. Check the building's bylaws before you buy a property intended for letting, and attend residents' meetings if you already own one. A friendly relationship with your neighbours is worth more than any clever legal argument when the vote comes round.