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Bookkeeping and tax filing service for Airbnb hosts in Barcelona

Fixed-fee online bookkeeping and quarterly tax filing by a licensed gestor for Barcelona hosts with one to three tourist flats, €59 per property per month.

Service business · Barcelona, Spain · Professional services · Checked 2026-10-04 · Full Check

Kill Do not build this as described. The problems are structural, not fixable with effort.

As described, this should not be built: the market is capped at 10,101 flats and ends in November 2028, and competitors charge €30-65 per host. The main reason is the short customer lifetime combined with a crowded, cheap field and a price model that looks costly for hosts with several flats. Test first whether hosts with 1-3 flats actually file quarterly and will pay €59 per property, and what they plan to do after 2028.

Why the numbers land here. The idea scores low because its main customer segment is legally scheduled to end in about 25 months, and cheap rivals including a rental-only specialist already sit well below the proposed price. The per-property price and the quarterly filing scope are both unproven for the hosts it targets.

Red flags

  1. The core market is scheduled to end in November 2028, about 25 months from now, so a customer acquired today has a short lifetime. Payback on acquisition has to be very fast.
  2. A rental-only specialist already charges €34.90 a month and generalists start near €30-50, so €59 per property looks expensive against the main alternatives.
  3. Per-property pricing means a 3-flat host pays €177 a month while rivals charge one flat fee per taxpayer. This is the weakest point in the pricing.
  4. Many hosts without hotel-style services may file only an annual return, so quarterly filing may not be needed. Demand for the product as described is unproven.
  5. No search-volume, forum or churn data was found, so demand rests on the founder's claim and must be tested.
  6. No data on how many licences belong to 1-3 flat owners versus companies and operators who already have accountants.

The eight dimensions

Problem severityweight 15%5/10

Hosts face real compliance pressure, but many with no hotel-style services may file only an annual return, so the quarterly filing the pitch sells may not apply to them. Cheap generalist gestorías already solve the basic problem.

  • Platforms now report host data to the tax authority (Modelo 238 replaced Modelo 179), so hosts can no longer assume nobody will cross-check them [37].
  • Without hotel-style services a tourist rental is VAT-exempt and taxed as property income; with such services it is an economic activity with VAT [22].
  • Sources disagree on how often cleaning and linen push a rental onto the VAT side [19].
Market size and demandweight 15%3/10

The pool is capped at 10,101 licensed flats, and the city says every licence ends in November 2028. That leaves about 25 months of legal short-term demand. The share held by 1-3 flat owners is unknown, and no search-volume data was found.

  • 10,101 tourist flat licences in Barcelona and no new ones since the 2014 moratorium [17].
  • Licences expire in November 2028 and will not be renewed [12].
  • After 2028 only stays of 32+ nights are allowed in residential buildings [10].
  • Ceiling arithmetic: 10,101 flats x €59 x 12 is about €7.2m a year if every flat signed up, which will not happen.
Competition and saturationweight 15%2/10

The sector is crowded and cheap. A rental-only specialist already charges €34.90 a month, and several generalists list tourist rentals as a niche. No wedge is visible in the pitch beyond being a Barcelona gestor.

  • Asesorages sells a flat-fee gestoría for tourist rentals at €34.90/month + IVA with a named adviser [24].
  • Taxdown starts at about €30/month [2].
  • Declarando from €49.90/month, Xolo and Taxfix are named as other online options [3].
  • Quipu from €49/month and Holded Gestoría from €70/month, with Trustpilot scores of 4.2-4.4 [1].
Timingweight 10%2/10

Timing mostly works against the idea. Tighter reporting helps demand, but the 2028 phase-out shortens the life of the core customer base and hosts may leave early. Rules on registration and VAT are also unsettled.

  • The 2028 phase-out announced by the mayor ends all tourist licences [12].
  • Airbnb was fined €64m in December 2025 and platforms remove unlicensed listings [17].
  • One source says the national registry was scrapped in May 2026; this is a single source and is unconfirmed [33].
  • A 21% VAT on all tourist rentals was proposed in 2025 and still needed parliamentary approval; its status is unresolved [13].
Feasibilityweight 15%6/10

A licensed gestor can run an online service with little capital. It is unconfirmed what the tax authority requires of a third-party filer and what the Colegio de Gestores requires. Set-up costs for the gestor were not found.

  • Competitors already run online onboarding at this price tier, so the delivery model is proven [3].
Monetization and unit economicsweight 15%3/10

€59 per property sits at the level rivals charge per taxpayer, not per flat. A host with three flats pays €177 a month against a rival's single fee of €35-65, which makes the pricing hard to defend. Time per client per month is unknown, so margin cannot be checked.

  • Asesorages quotes €34.90/month + IVA [24].
  • Taxdown starts at €29.90/month + IVA [2].
  • Guiafiscal gives a market range of €70-250/month across online gestorías for broader packages [1].
  • No source found shows per-property pricing is normal in this market.
Founder fitweight 5%6/10

The pitch says a licensed gestor runs it, which is the key skill. Network, time available, Catalan and English language ability, and any existing client base are not stated. The founder needs to supply these.

Unverified: no source found for this dimension.

Fatal risksweight 10%1/10

One dependency can end the idea: the November 2028 licence expiry removes the whole customer segment within about 25 months. Shifting rules on registration and VAT add further uncertainty to the scope of the service.

  • All 10,101 licences expire in November 2028 and will not be renewed [12].
  • Secondary sources say the Constitutional Court upheld the plan in March 2025 [15].
  • Fines of up to €600,000 for unlicensed rentals show the regulator is enforcing the rules [13].

Competitors named in the check

Market

Demand

10,101 licensed tourist flats in Barcelona with no new licences since 2014. Tax-authority reporting of host data (Modelo 238) raises compliance pressure. No search-volume, trends or forum data was found, and the founder's demand claim is untested.

Size

TAM: 10,101 licensed flats x €59 x 12, about €7.2m a year if every flat signed up. SAM: only owners of 1-3 flats who want an outside gestor; the share is unknown. SOM: for example 100-200 flats would give about €71k-142k a year, an illustrative figure and not a forecast. All of it ends with the licences in November 2028.

Trend

Declining

Costs and money

Start-up cost

$500 to $3k

Monthly running cost

$150

Revenue model

Monthly subscription per property for bookkeeping and quarterly tax filing, with annual income tax return possibly priced separately.

USD, rough founder-side assumptions and not sourced; the research found no figures for colegiación fees, professional liability insurance, software or digital certificate set-up. Range assumes an existing licensed gestor, a basic website, accounting software and insurance, and excludes the founder's time and paid marketing.

Price point: €59 per property per month; unclear whether IVA is included. Rivals charge €30-80 per taxpayer per month.
Unit economics: Cannot be assessed: time per client per month, acquisition cost and churn are unknown. A 1-flat host at €59 is in line with rivals; a 3-flat host at €177 is not. With a customer life of at most about 25 months, acquisition cost needs to be well under three months of fees.

Kill criteria

RiskCheap testKill it if
Hosts do not need quarterly filingInterview 15 Barcelona hosts with 1-3 flats. Ask what they file today, whether they already file quarterly VAT, and who does it.Fewer than 5 of 15 file or expect to file quarterly returns, or most already have a gestor they are happy with.
Price too high against cheaper rivalsRun a landing page with the €59 per property offer and a second version with a flat fee per host, and send 200 targeted visitors from host groups and ads.Fewer than 8 paid-intent signups or deposits in 2 weeks, or the flat-fee version converts at less than half the rate of per-property pricing.
Customer base ends in 2028Ask the same hosts what they will do after 2028 (sell, long-term let, mid-term let, stay) and whether they would pay for tax help in that case.Fewer than a third plan to keep renting in a way that needs ongoing filings after 2028.
Legal or professional requirements block third-party filingCall the Colegio de Gestores and a tax adviser to confirm what is required to file for clients, the insurance needed, and the status of the 21% VAT.The requirements add more than a few thousand euros of cost or the VAT proposal is dead and quarterly filings do not apply to most hosts.

30-day plan

TaskThe number that says it worked
Week 1Confirm with the Colegio de Gestores and a tax adviser what a gestor needs to file for clients, the real costs, which hosts must file quarterly, and the status of the 21% VAT proposal.All four questions answered in writing and a verified set-up cost figure.
Week 2Interview 15 Barcelona hosts with 1-3 flats found through host groups and platforms about what they file, who does it, and what they pay.At least 15 interviews; at least 5 who file or expect to file quarterly and are open to switching.
Weeks 3 and 4 are in the owner’s report. Check your own version of this idea to get the full plan.

What would change the verdict

Sources

  1. Mejor gestoría online autónomos 2026: 8 comparadas desde 30 €
  2. Gestoría Fiscal para Autónomos: Te ayudamos desde 30€
  3. Mejor gestoría online 2026: precios para autónomos
  4. Top 9 programas de facturación para autónomos y pymes
  5. Gestoría online para autónomos · Tarifa plana 80 € + Holded incluido
  6. Mejor gestoría online 2026 ▷ Comparativa real TOP 10 [Actualizado]
  7. TaxDown vs Declarando 2026: Renta IRPF autonomos · FactuChat
  8. Mejor software fiscal para autónomos en 2026: comparativa completa
  9. ¿Cuánto cuesta una gestoría online en España? Comparativa 2026
  10. Barcelona Is Shutting Down Every Airbnb by 2028
  11. Barcelona to ban Airbnb, Valencia might soon follow - Rick Steves Travel Forum
  12. Bye-bye Airbnb? Barcelona sets 2028 deadline to phase out tourist flats — idealista/news
  13. Barcelona Airbnb Rules 2025: A Complete Compliance Guide
  14. Barcelona bans Airbnb rentals by 2028 « Euro Weekly News
  15. Barcelona Short-Term Rental Ban: Spain’s Top Court Rules Against Airbnb
  16. Barcelona to Terminate Tourist Accommodation Licenses in 2028
  17. Barcelona Airbnb Ban 2026: New Rules, Fines & What Next
  18. Barcelona Airbnb Ban 2026: Spain STR Rules, Fines & Region-by-Region Guide
  19. Impuestos alquiler vacacional España: guía legal 2026
  20. Fiscalidad de la vivienda en alquiler turístico
  21. Cómo declarar los ingresos de Airbnb en España (2026): guía completa paso a paso
  22. IVA Alquiler Turístico 2025 en España
  23. Obligaciones Fiscales si Alquilas tu Vivienda (Airbnb, Booking)
  24. Gestoría para alquiler turístico, Airbnb y viviendas vacacionales · 34,90 €/mes
  25. IVA alojamiento turístico España 2026: 10% y 21% - Vezpa
  26. Cómo declarar Airbnb 2026: IVA, IRPF y modelos
  27. IVA en alojamientos turísticos de corta estancia en España
  28. Airbnb agrees to remove unlicensed listings in Spain from August
  29. Airbnb agrees to remove listings without legal registration code in Spain
  30. 2025: the year Spain’s short-term rental registry transformed tourism
  31. Short-Term Rentals in Spain 2026: NRU Registration, Rules & Fines — Complete Guide
  32. Airbnb Spain Crackdown 2025: Get Your NRA to Avoid Delisting
  33. Spain has scrapped its national short-term-rental registry — what Costa Blanca owners actually need to do now — Elia Living
  34. Spain's NRA: The Short-Term Rental Registration Guide
  35. A Guide to Spain's New Rental Registration Number - NRA
  36. EXPLAINED: Spain cancels national registry for Airbnb-style homes
  37. Modelo 179 alquiler vacacional: qué es y qué lo sustituye en 2026
  38. Modelo 179 de alquiler turístico: qué es y quién debe presentarlo
  39. Modelo 179: nuevo mecanismo de Hacienda para controlar el alquiler vacacional
  40. Modelo 179, más control sobre viviendas turísticas

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