Serviced Accommodation & Holiday Let Finance: ROI, Cash Flow & Tax Strategy
Holiday Let Financial Model — ROI, Cash Flow and Tax
Last updated: June 2025
A holiday let financial model that only shows the income side isn't a financial model — it's a brochure.
The complete version covers five things: gross income at realistic occupancy, the full operating cost stack, monthly cash flow variation across the year, the ROI on the initial investment, and the correct tax treatment after the April 2025 abolition of FHL rules.
This guide is written for landlords weighing a switch from long-term letting and for prospective buyers validating a purchase decision before they commit.
All figures are drawn from Stayful's enquiry data across 189 UK properties. Conservative estimates use the 25th-percentile figure throughout — not the average, and not the best case.
A UK holiday let at 65–70% occupancy generates 48–66% more net income than a comparable long-term tenancy at the conservative 25th-percentile estimate — rising to 91% at the median. The picture changes materially once operating costs, monthly cash flow, and the 2025 FHL tax abolition are factored in correctly. The full breakdown, including slow-month figures and tax implications, is covered section by section below.
What a complete holiday let financial model actually shows — and what most income estimates leave out
The income estimates landlords typically encounter before they start researching seriously are built on three assumptions that rarely survive contact with reality: peak-season occupancy applied year-round, gross bookings rather than net income, and a cost stack limited to the management fee alone.
A complete holiday let financial model introduces five cost categories most estimates omit, shows month-by-month variation across the full 12 months, and produces a net annual figure the owner would actually receive — not the figure that looks best in a sales document.
The income side — what a UK holiday let typically earns at conservative occupancy
Based on enquiry data from 189 UK properties managed or evaluated by Stayful, the average net STR monthly income is £2,527 — against an average long-let equivalent of £1,225 for the same properties.
The conservative figure (25th percentile) produces a net STR income approximately 48–66% above the long-let equivalent. The median property earns 91% more. The range is wide because local demand, property type, and management quality all vary — which is why the conservative figure, not the average, is the right starting assumption for a financial model.
The cost side — what comes out before you net anything
The five cost categories below are the ones most frequently omitted from the income estimates prospective holiday let owners receive from letting agents and property developers.
The figures below use a representative 2-bed UK holiday let generating £36,000 gross annually at conservative occupancy — the gross figure that produces the £21,700 conservative net outcome shown in the comparison above.
| Cost category | How it's calculated | Annual cost (conservative) |
|---|---|---|
| Management fee (15% + VAT) | 18% of gross bookings including VAT | £6,480 |
| Cleaning | ~60 changeovers per year at £90 per clean | £5,400 |
| Consumables and laundry | Toiletries, kitchen supplies, linen replacement | £1,200 |
| Maintenance contingency | Minor repairs, appliance wear, annual safety checks | £900 |
| Insurance (if not bundled) | STR-specific landlord cover — check existing policy | £800 |
| Platform fees (on non-direct bookings) | 3% average on ~60% of bookings (40% direct — no fee) | £648 |
| Total operating costs | £15,428 | |
| Net annual income (gross £36,000 – costs) | £20,572 |
What the income model actually looks like — gross to net in one view
Month by month — when the income peaks, when it quiets, and what the floor looks like
Seasonal range The typical UK holiday let earns roughly twice as much in its peak month (usually August) as in its quietest month (usually January). For the conservative model above, that translates to approximately £2,400 in August and £1,200 in January — both still above the long-let equivalent of £1,225 per month.
Quietest month January is the floor for most UK holiday lets. At the conservative 25th-percentile income level, a January net figure of approximately £1,200 is realistic — marginally below the long-let equivalent for that single month. On an annual basis, the short-let model still comfortably outperforms, because the remaining 11 months average well above the long-let floor.
Recovery pace Most UK holiday let markets recover from the January trough by late February or March, with Easter representing the first meaningful peak of the calendar year. The implication for a financial model: January is not representative of annual performance, and modelling annual income from January alone produces a figure approximately 34% below the 12-month average.
What the April 2025 FHL abolition means for your holiday let numbers — specifically
The Furnished Holiday Letting regime, which gave qualifying holiday lets access to more favourable tax treatment than standard residential property, was abolished with effect from 6 April 2025. From that date, UK holiday let income is treated as ordinary UK property income for tax purposes.
The changes affect five areas. Each is covered below, along with what it means in practice for a landlord building or updating a financial model.
Under FHL rules, landlords could deduct 100% of mortgage interest as a business expense. From April 2025, holiday let mortgage interest is treated identically to buy-to-let: relief is restricted to a 20% tax credit on the finance cost. For higher-rate and additional-rate taxpayers, this is a material reduction in net after-tax income. Build the 20%-credit rule into your financial model rather than the full-deduction assumption.
FHL properties could claim capital allowances on furniture, fixtures and fittings — often producing a significant tax relief in year one. From April 2025, new holiday let purchases cannot access these allowances. Properties acquired before the abolition date and already claiming capital allowances may continue existing claims under transitional rules; confirm with a qualified accountant for your specific position.
FHL properties formerly qualified for Business Asset Disposal Relief (BADR), which could reduce the CGT rate on disposal to 10%. From April 2025, holiday lets are subject to the standard residential CGT rate of 24%. For owners with significant appreciation in their property, this is the single largest financial impact of the abolition. Factor 24% into any exit or remortgage scenario in your model.
The thresholds that determine whether a short-let property pays council tax or business rates were not changed by the FHL abolition. Properties available to let for at least 140 days and actually let for at least 70 days remain liable for business rates rather than council tax. Properties with a rateable value under £15,000 may qualify for Small Business Rate Relief, potentially reducing the rate bill to zero. Stayful properties consistently clear the 70-day letting threshold.
Under FHL rules, net holiday let profit counted as "relevant earnings" for pension contribution purposes, meaning landlords could use it to support larger pension contributions and access the associated tax relief. From April 2025, holiday let income is standard property income and no longer qualifies as relevant earnings. If pension contributions were a key component of your financial strategy, the model needs to be updated to reflect the reduced contribution limit.
Balancing income and lifestyle with your holiday let — what actually works
The income model above treats the property as a full-time short-let. Most owners do not run it that way — and the financial model needs to account for that from the outset.
Owner usage is not a cost in the conventional sense, but it affects the income line. Two weeks of personal use in August reduces the annual gross income by approximately £1,600–£2,000 at typical peak rates for a UK property in moderate demand. Modelled correctly, a property with 4 weeks of personal use annually still comfortably outperforms the long-let equivalent.
- Owner usage is booked through the owner calendar — no approval required, no notice period. The property is simply unavailable to guests on those dates.
- Blocking winter dates for personal use has a minimal income impact — January and February generate the lowest income of the year. Blocking August peak costs proportionally more.
- Short-term letting restores the flexibility that a long-term tenancy removes: owners can use the property between bookings, in gaps, and for family stays.
- Unlike a tenancy, no guest has exclusive possession of the property. The owner retains control at all times outside confirmed booking windows.
- A financially sound holiday let model plans the owner usage calendar at the start of the year, rather than deciding ad hoc — this allows the pricing model to optimise around the fixed unavailable dates.
The questions landlords ask when they run their first holiday let financial model
At the conservative 25th-percentile estimate, a UK holiday let generates approximately £1,810 per month net — after management fee, cleaning, consumables, maintenance, and platform costs. The median property nets approximately £2,300 per month. In the quietest month (typically January), a conservative property nets approximately £1,200 — marginally below a comparable long-let, which would typically pay £1,225 for the same month. On an annual basis, the short-let comfortably outperforms.
ROI on a holiday let is calculated as net annual income divided by total capital deployed. Total capital includes purchase price, stamp duty (including the 3% additional property surcharge), legal fees, survey, and setup costs (furnishing, photography, safety compliance). For a £250,000 property with approximately £12,000 in purchase costs and £8,000 in setup, total capital is approximately £270,000. At a conservative net annual income of £21,700, that produces a net yield of approximately 8% on capital deployed — before mortgage financing is accounted for.
The Furnished Holiday Letting (FHL) special tax regime was abolished on 6 April 2025. From that date, holiday let income is treated as standard UK property income. The main impacts are: mortgage interest relief is now limited to a 20% tax credit (not full deduction); capital allowances are no longer available on new purchases; capital gains tax on disposal is now at the standard residential rate of 24%, not the former 10% BADR rate; and FHL income no longer counts as "relevant earnings" for pension contribution purposes. The council tax and business rates thresholds (140-day / 70-day) were not affected. Always confirm your specific position with a qualified accountant.
January is typically the quietest month for a UK holiday let. At the conservative 25th-percentile level, January net income is approximately £1,200 — slightly below the long-let equivalent of £1,225 for that single month. The key question is not whether one month dips below the long-let level, but whether the annual total exceeds it — and at 48–66% conservative uplift, it does. Below-market performance would require both the pricing and occupancy management to underperform simultaneously, and the 40% direct booking rate provides structural protection against the income variation that platform-only arrangements experience.
Yes. A holiday let purchased as an additional property is subject to Stamp Duty Land Tax (SDLT) including the 3% additional property surcharge. On a £250,000 purchase the surcharge alone adds £7,500 to acquisition costs. From October 2024, the standard residential SDLT thresholds reverted to pre-2022 levels; the additional property surcharge was not affected. SDLT should be included in the total capital figure used for any ROI calculation. Always confirm your specific SDLT position with a property solicitor.
Yes. Owner usage is managed through the owner calendar — block the dates you want to use the property and those dates become unavailable to guests. No approval is required and there is no notice period to guests. Unlike a long-term tenancy, no guest has exclusive possession of the property; owner access is available at any point outside confirmed booking windows. Blocking a few weeks of personal use reduces annual income proportionally to the revenue those dates would have generated, but most models retain a strong positive net outcome relative to the long-let alternative even with 3–4 weeks of owner usage per year.
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