Furnished Holiday Letting Calculator UK

Enter your values below to get the result first, then scroll for the full explanation and guidance.

Step 1 • Add values

Use the calculator

Enter your values below to generate an instant result. You can update the inputs at any time to compare different scenarios.

Example: GBP 250,000 over 25 years at 4.5% interest.

Results refresh instantly as values change.

Estimated monthly repayment

£1,389.58Higher interest load

Estimated monthly repayment: £1,389.58 (Higher interest load)

Interest takes up a large share of the total paid over the full term.

How to read this mortgage estimate

Interest takes up a large share of the total paid over the full term.

Result snapshot

A quick visual read of the values behind this result.

Mortgage amount£250,000.00
Interest rate4.5%
Mortgage term300 months
Total interest£166,874.36
Total repaid£416,874.36

Recommended next checks

  • →Change the term to see how shorter or longer mortgages affect monthly affordability.
  • →Adjust the interest rate to stress-test how sensitive the repayment is to rate changes.
  • →Use the overpayment calculator next to see how much faster the balance could reduce.
Mortgage amount
£250,000.00
Interest rate
4.5%
Mortgage term
300 months
Total interest
£166,874.36
Total repaid
£416,874.36

This assumes a standard repayment mortgage with a constant interest rate.

Try different values to compare results.

You’ll input your gross rent, letting days and allowable expenses, and the calculator instantly checks the 75% letting‑days test, the 25‑day rule and any 90‑day split‑year conditions. It’ll then reduce expenses to the business‑use portion, add annual mortgage interest, depreciation and capital allowances, and apply the chosen income‑tax rate. The result shows taxable profit, tax liability and net after‑tax earnings. Keep going to see optimisation tips and detailed scenario examples for your own property today.

Clear monthly repayment output

Useful for affordability planning

Strong for comparing term and rate changes

Table of Contents

13

About Furnished Holiday Letting Calculator UK

You’ll input your gross rent, letting days and allowable expenses, and the calculator instantly checks the 75% letting‑days test, the 25‑day rule and any 90‑day split‑year conditions. It’ll then reduce expenses to the business‑use portion, add annual mortgage interest, depreciation and capital allowances, and apply the chosen income‑tax rate. The result shows taxable profit, tax liability and net after‑tax earnings. Keep going to see optimisation tips and detailed scenario examples for your own property today.

Key Takeaways

  • Input gross rental income, allowable expenses, and total letting days (including personal‑use days) to compute taxable profit.
  • Calculator automatically applies the 75 % letting‑days test and 25‑day rule, adjusting expenses to the business‑use portion.
  • Includes HMRC‑approved expense categories (utilities, maintenance, insurance, mortgage interest) and applies capital allowances and depreciation where eligible.
  • Calculates tax liability using selected income‑tax rate (e.g., 20 %) and subtracts personal allowance to show net profit after tax.
  • Generates a summary chart and exportable report for accounting software, with variance analysis between projected and actual cash flow.

Furnished Holiday Letting Calculator UK

You use a furnished holiday letting calculator UK to translate rental income, expenses, and allowable deductions into a clear tax liability under HMRC rules.

It shows you exactly how the reliefs for furnished holiday lets differ from standard rental properties, so you can plan cash flow and avoid unexpected charges.

Because UK tax treatment hinges on specific thresholds and qualifying criteria, it’s essential for you to guarantee compliance and optimize your finances.

What Is Furnished Holiday Letting Calculator UK in the UK Context

How does a furnished holiday letting calculator work in the UK?

You input rental income, expenses, and days; the tool applies the furnished holiday letting calculator UK formula UK to derive taxable profit.

The furnished holiday letting calculator UK explained UK then shows which allowances survive HMRC scrutiny.

Our furnished holiday letting calculator UK guide UK walks you through each field, ensuring accurate classification and maximum tax relief.

  • A spreadsheet flashing numbers as you type nightly rates
  • A calendar highlighting booked vacant days
  • A calculator icon ticking down deductible expenses
  • A tax summary bar chart revealing profit after relief

Why It Matters for UK Users

Because the UK tax regime treats furnished holiday lets differently from ordinary rentals, a calculator helps you avoid costly errors and capture every allowable relief.

By inputting your rental income, expenses, and qualifying days, the furnished holiday letting calculator UK calculator UK instantly flags which costs qualify for capital allowances versus revenue deductions.

A furnished holiday letting calculator UK example UK shows the impact of the 25‑day rule, letting‑property test, and split‑year treatment on your tax bill.

Use these furnished holiday letting calculator UK tips: verify all mortgage interest, include utilities, and record each guest night to maximise relief.

How Furnished Holiday Letting Calculator UK Works UK

You’ll input rental income, allowable expenses, and the proportion of days the property is let to calculate taxable profit using HMRC’s furnished holiday letting formula.

The calculator applies the 75 % letting‑days test, subtracts expenses such as mortgage interest, utilities and maintenance, then applies the appropriate tax rates.

For example, a £30,000 annual rent with £10,000 allowable expenses and 200 letting days results in a taxable profit of £15,000 under current UK rules.

Formula Explanation

Why does the furnished holiday letting calculator give you a clear profit figure?

Because it isolates rental income, deductible expenses, and tax allowances into a net result.

You input gross rent, occupancy rate, utility costs, maintenance, insurance, and mortgage interest.

The formula subtracts total expenses from gross revenue, then applies the 75‑percent profit‑making exemption and allowance.

This yields taxable profit, which the calculator converts into your earnings.

Use the furnished holiday letting calculator UK UK to streamline inputs, follow how to calculate furnished holiday letting calculator UK UK steps, and apply furnished holiday letting calculator UK UK tips accuracy.

Example: Realistic UK Calculation

When you enter a £30,000 annual gross rent, a 70 % occupancy rate, £4,500 utilities, £2,200 maintenance, £1,200 insurance, and £8,000 mortgage interest, the calculator first totals the expenses (£15,900) and subtracts them from the revenue (£21,000), giving a pre‑tax profit of £5,100.

You then see the net figure after accounting for income‑tax allowances; the tool applies the 20 % rate, leaving £4,080.

The same input feeds the furnished holiday letting calculator UK dashboard, where you can toggle depreciation or add cleaning fees.

Check the faqs UK section for guidance on allowable expenses and record‑keeping and keep receipts for all deductible costs.

How to Use Furnished Holiday Letting Calculator UK

First, you’ll input your rental income, allowable expenses, and occupancy days into the calculator.

Next, you’ll verify the HMRC‑aligned depreciation and tax‑relief figures it produces, adjusting any inputs as needed.

Finally, you’ll review the summary to confirm your net profit and compliance with UK furnished holiday letting rules.

Step-by-Step UK Guide

Three simple steps let you calculate your furnished holiday letting profits and tax liabilities accurately. First, collect all rental income, ancillary fees, and allowable expenses such as utilities, maintenance, and mortgage interest for the fiscal year.

Second, enter each figure into the online FHL calculator, choose the correct tax year, and tick the ‘furnished holiday letting’ box to trigger specific reliefs.

Third, analyse the results: note net profit, deductible expenses, and the marginal tax rate, then transfer the figures to your self‑assessment return. Follow this routine each year to maintain compliance and optimise your tax position for future growth.

UK Examples

You can compare a typical UK set of numbers with a real‑life case in the table below.

ExampleRental Income (£)Allowable Expenses (£)
120,0005,000
230,00012,000
Total50,00017,000

You've observed how the different incomes and expenses shift your net profit and tax liability.

Example 1: Typical UK Values

How does a typical UK furnished‑holiday let perform?

You purchase a two‑bedroom cottage for £250,000, finance 75 % with a mortgage at 4.5 % interest, and allocate £1,200 monthly for repayments.

Assuming a 60 % occupancy rate, you charge £120 per night, yielding £2,160 gross per month.

Deduct £400 for utilities, £250 for cleaning, £150 for insurance, and £200 for council tax, leaving £1,160 net before finance costs.

After the £540 mortgage payment, your pre‑tax profit is £620 per month, or £7,440 annually, before capital allowances.

HMRC treats the income as property revenue, so you offset allowable expenses and claim 20 % wear‑and‑tear allowances on the interior fit‑out generally each year.

Example 2: Real-Life Case

While the previous scenario illustrated textbook figures, a real‑world case in Cornwall demonstrates how actual costs and occupancy rates affect profitability.

You're buying a three‑bedroom cottage for £250,000, finance 75 % with a 4 % mortgage, paying £7,500 annual interest.

Running costs—insurance, council tax, utilities, and cleaning—total £4,200.

You charge £150 per night and achieve a 70 % occupancy, yielding 255 nights booked and £38,250 gross revenue.

Subtracting interest and running costs leaves £26,550 before tax, a net yield of 10.6 % on your equity.

This illustrates how realistic occupancy and expense assumptions narrow margins compared with textbook examples. You should reassess assumptions.

Advanced Insights UK

You've probably overestimated allowable expenses by including personal costs, which skews your tax position.

Double‑check each entry against HMRC guidance and use the calculator’s built‑in checks to validate figures.

Common Mistakes UK Users Make

Many users over‑estimate allowable expenses, assuming every furnishing cost qualifies for full relief.

You often double‑count depreciation by including both capital allowances and repair costs for the same item.

You may treat personal travel to the property as business mileage, ignoring HMRC’s strict separation rules.

You frequently ignore the 90‑day rule, mistakenly claiming furnished holiday letting status when occupancy exceeds the threshold.

You also misclassify utilities, claiming full amounts instead of the proportion attributable to guests.

Finally, you overlook the need to retain detailed receipts, risking disallowed claims during an audit.

Make certain calculations reflect actual rental periods precisely annually.

Tips for Better Accuracy

How can you sharpen your furnished holiday letting calculations?

Begin by standardising data entry: use the same units, dates, and currency format for every property.

Record actual occupancy nights, not estimates, and reconcile them weekly with booking platforms.

Apply HMRC-approved expense categories, allocating utilities, cleaning, and maintenance proportionally to rental days.

Cross‑check depreciation schedules against asset registers each fiscal year.

Automate recurring entries in your spreadsheet or software to eliminate manual transcription errors.

Validate totals by running a variance analysis between projected and realised cash flow.

Finally, audit your inputs quarterly, correcting anomalies before filing tax returns on time.

UK Specific Factors

You'll need to align your calculations with HMRC's furnished holiday letting criteria and the NHS's property‑related tax allowances.

The calculator converts all inputs to UK‑standard units—pounds, square metres, and calendar weeks—so your results match local reporting requirements.

NHS or HMRC Rules Impact

Why do NHS and HMRC regulations matter for your furnished holiday letting calculations?

HMRC determines whether your property qualifies as a Furnished Holiday Letting (FHL), which influences income‑tax relief, capital‑gains treatment, and the ability to claim wear‑and‑tear allowances.

You must meet the 90‑day rental test and the 30‑day availability test; failure reclassifies income as standard residential, increasing tax rates and removing business expense deductions.

Additionally, HMRC requires accurate record‑keeping of receipts, utility bills, and occupancy logs to substantiate claims.

NHS guidelines, meanwhile, set strict minimum health‑and‑safety standards—adequate fire alarms, sanitation, and accessibility—that affect allowable expense calculations and potential liability.

UK Standards and Units

HMRC’s rental‑test thresholds and NHS safety mandates set the framework, but the calculations themselves rely on specific UK measurement standards and tax units.

You must convert property area to square metres, not feet, because HMRC reports figures in metric.

You’ll use the standard fiscal year running 6 April to 5 April for income allocation.

Depreciation follows the UK capital allowance schedule, expressed in pounds sterling with decimal precision to two places.

Energy‑efficiency ratings use EPC band scores, influencing allowable expense caps.

By adhering to these units, your furnished‑holiday‑letting model remains compliant and comparable across the market.

You can file accurate returns.

Frequently Asked Questions

Can I Claim Capital Allowances on Furniture in a Furnished Holiday Let?

Yes, you can claim capital allowances on furniture in a furnished holiday let, provided the items are used exclusively for the business and you've kept detailed records, applying the appropriate writing‑down rates each tax year.

How Does the 90‑day Rule Affect My Tax Residency Status?

The 90‑day rule means if you spend ninety days or more in the UK during a tax year, you’ll likely be treated as resident, subject to worldwide tax, unless other residence tests override it ultimately.

What Records Must I Keep for HMRC Audits of Holiday Lets?

You've got to keep income and expense logs, bank statements, receipts, tenancy agreements, guest registers, mileage records, repair invoices, depreciation schedules, and any correspondence with HMRC, all organized by tax year for future reference purposes.

Are Airbnb Service Fees Deductible from Rental Income?

While you relish extra bookings, you're also facing tax obligations—yes, you can deduct Airbnb service fees from your rental income, treating them as allowable expenses, provided you retain invoices and record them accurately for tax.

How Does Brexit Impact VAT on Short‑term Holiday Rentals?

Brexit removed the EU VAT exemption for short‑term holiday lets, so you've now charged UK VAT on stays longer than three months and must register if your taxable turnover exceeds £85,000 and file quarterly returns.

Conclusion

You've turned the tax maze into a clear runway, letting the calculator strip away guesswork and spotlight every deductible. By feeding income, occupancy, and costs, you watch profit and liability line up like a well‑tuned orchestra. The tool’s UK‑specific rules keep you anchored to HMRC compliance while revealing hidden savings. Armed with these numbers, you can decide confidently whether your holiday let will soar or stall, grounding your investment in solid data for future growth.

Formula explained

Repayment formula

This calculator uses a standard amortising repayment model so you can project regular payments, total interest, and full-term repayment cost.

Formula

Payment = principal, rate, and term combined into equal repayment periods

How the result is built

1Start with the financed amount, interest rate, and term length.
2Convert the annual rate into a monthly rate.
3Apply the amortising repayment formula across the full number of months.
4Return the periodic payment and total interest over the term.

Example

Example: GBP 250,000 over 25 years at 4.5% interest.

Assumptions

  • include affordability thresholds, allowable expenses, or tax treatments where the variant requires them

Source basis

  • Standard amortisation method
  • Equal repayment schedule modelling
  • Mortgage and loan scenario comparison

Trust and notes

Assumptions and important notes

This calculator is designed to give a fast estimate using the method shown on the page. Results are most useful when your inputs are accurate and the tool matches your situation.

Use the result as guidance rather than a final diagnosis or professional decision. If the result could affect health, legal, financial, or compliance decisions, verify it with a qualified source where appropriate.

  • include affordability thresholds, allowable expenses, or tax treatments where the variant requires them

Method

Amortised repayment formula

Last reviewed

April 17, 2026