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Rent-to-rent calculatorRooms · Serviced accommodation · Payback

See the monthly profit, setup costs and payback period for a rent-to-rent deal, whether you let by the room or as serviced accommodation.

Purchase
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Mortgage
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Income
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Running Costs (Monthly)
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Property Value Assumptions
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How to use this calculator
Buy-to-Let Analysis
Your complete BTL metrics: yield, cashflow, ROI and 5-year projection
1
Enter purchase details
Set the property price, deposit percentage and stamp duty. Use Auto-calculate for instant SDLT.
2
Set mortgage terms
Add your interest rate, repayment type and arrangement fee.
3
Add income and costs
Enter monthly rent or nightly rate, management fees, insurance and any service charges.
4
Click Calculate Deal
Your full analysis appears instantly yield, cashflow, ROI and 5-year return.
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Gross Yield
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Net Cashflow
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Annual ROI
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5-Year Return
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Complete the inputs and click Calculate Deal
Purchase
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Mortgage
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Rooms & Income
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Running Costs (Monthly)
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Property Value Assumptions
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How to use this calculator
HMO Analysis
Multi-room yield, void-adjusted cashflow and full 5-year return
1
Enter purchase details
Set the property price, deposit percentage and stamp duty. Use Auto-calculate for instant SDLT.
2
Set mortgage terms
Add your interest rate, repayment type and arrangement fee.
3
Add income and costs
Enter monthly rent or nightly rate, management fees, insurance and any service charges.
4
Click Calculate Deal
Your full analysis appears instantly yield, cashflow, ROI and 5-year return.
···
Gross Yield
···
Net Cashflow
···
Annual ROI
···
5-Year Return
Fill in the fields on the left, then press Calculate Deal at the bottom to see your full analysis
Purchase
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Refurbishment
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After Refurb Value & Refinance
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Rental Income
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Running Costs (Monthly)
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How to use this calculator
BRRR Analysis
Equity created, capital recycled, cashflow and refinance metrics
1
Enter purchase and refurb costs
Set the purchase price, stamp duty, refurb budget and holding costs.
2
Set the GDV and refinance terms
Enter your projected value after works and your remortgage LTV and rate.
3
Add post-refinance running costs
Include management fees, insurance, maintenance and service charges.
4
Click Calculate Deal
See equity created, capital recycled, cashflow and your 5-year projection.
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Gross Yield
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Net Cashflow
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Annual ROI
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5-Year Return
Fill in the fields on the left, then press Calculate Deal at the bottom to see your full analysis
Purchase
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Mortgage
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yrs
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STL Income
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Running Costs (Monthly)
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Property Value Assumptions
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How to use this calculator
Short-Term Let Analysis
Nightly rate projections, occupancy-adjusted yield and cashflow
1
Enter purchase details
Set the property price, deposit percentage and stamp duty. Use Auto-calculate for instant SDLT.
2
Set mortgage terms
Add your interest rate, repayment type and arrangement fee.
3
Add income and costs
Enter monthly rent or nightly rate, management fees, insurance and any service charges.
4
Click Calculate Deal
Your full analysis appears instantly yield, cashflow, ROI and 5-year return.
···
Gross Yield
···
Net Cashflow
···
Annual ROI
···
5-Year Return
Fill in the fields on the left, then press Calculate Deal at the bottom to see your full analysis
Deal Structure
£
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Setup Costs
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HMO Income
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£
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Running Costs (Monthly)
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Management Costs (Monthly)
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How to use this calculator
Rent-to-Rent Analysis
Monthly profit, setup payback period and contract term returns
1
Set the landlord rent and term
Enter the rent you pay to the landlord and the contract length in months.
2
Choose your sub-let strategy
Select HMO room-by-room or serviced accommodation and enter income details.
3
Add running and management costs
Include utilities, management fees, platform fees and cleaning costs.
4
Click Calculate Deal
See monthly profit, payback period, margin and your projected return.
···
Gross Yield
···
Net Cashflow
···
Annual ROI
···
5-Year Return
Fill in the fields on the left, then press Calculate Deal at the bottom to see your full analysis
This tool shows if a deal works today. PROXERA tracks whether it keeps working every month.

Live yield, cashflow, equity and Making Tax Digital across every property, with AI alerts when to act.

Analyse BTL, BRRR, HMO and rent-to-rent deals in one place

The PROXERA property deal analyser is a free tool for stress-testing a deal before you commit, across every major UK strategy. Whether you are running a standard buy-to-let, a BRRR project (buy, refurbish, rent, refinance), an HMO, serviced accommodation or a rent-to-rent, it works the full picture: purchase costs, stamp duty, mortgage, cashflow, gross and net yield, cash-on-cash return and a five-year projection. Here are three short worked examples using realistic UK figures. They are illustrative, not advice.

BRRR worked example

Buy, refurbish, rent, refinance

Buy a tired terrace for £130,000, spend £22,000 on the refurbishment and about £7,500 in purchase costs, so roughly £159,500 goes in. After the works it revalues at £185,000. Refinancing at 75% loan-to-value pulls out £138,750, leaving about £20,750 of your own money in the deal. It rents for £950 a month.

Recycling most of your capital into the next project is the whole point of BRRR, and the reason the deal only works if the post-refurbishment valuation and the refinance both land. The analyser shows exactly how much you leave in.

HMO worked example

House in multiple occupation

Buy a four-bed house for £210,000 and convert it to a five-bed HMO for £28,000, plus about £9,000 in costs, so roughly £247,000 in. Let the five rooms at £560 a month each and you have £2,800 a month gross, a gross yield of about 13.6%, far above a single let.

HMOs cost more to run: bills, licensing, higher management and higher voids. Set those allowances in the analyser so the headline gross does not flatter the deal, and the net still lands well ahead of a standard buy-to-let.

Rent-to-rent worked example

Rent-to-rent

No purchase. You agree a three-year lease with a landlord at £1,400 a month, with written permission to sublet, and around £4,000 to furnish and make it compliant. You operate it as a four-room HMO at £2,650 a month gross. After the rent to the owner, bills and management of about £650, you keep roughly £600 a month.

Rent-to-rent needs little capital, but the margins are thin and it is management-heavy, so it only holds while occupancy stays high. Run it through the analyser and you can see how quickly a couple of empty rooms erase the profit.

Change any figure and the analyser updates instantly. When a deal stacks up and you buy it, PROXERA then tracks whether it keeps performing every month. For single lets you can also use the rental yield calculator and the buy-to-let calculator.

Worked examples use illustrative UK figures and are not investment, tax or mortgage advice. Your own numbers, lending terms and local market will differ. Speak to a qualified adviser before acting.

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How the rent-to-rent calculator works

In rent-to-rent you rent a property from its owner and, with their written permission, let it out yourself, usually room by room or as serviced accommodation. Your income is the rent you collect; your costs are the rent you pay the owner, the bills, management, cleaning, platform fees and the money you spend setting it up.

Monthly profit = income from rooms or nightly stays − rent paid to the owner − running costs
Payback = setup costs ÷ monthly profit

What to check before you sign

  • Written consent from the owner to sublet, and from their mortgage lender and insurer where required.
  • The contract: its length, break clauses and who is responsible for repairs.
  • Licensing and planning: HMO licensing can apply when letting by the room, and some areas restrict short-term lets.
  • Your own insurance and the compliance responsibilities that come with letting.
  • A realistic occupancy rate, and how quickly setup costs pay back within the contract term.

Rules differ across England, Scotland, Wales and Northern Ireland, and between councils, so check the position for the specific property and take legal advice on the agreement.

Questions

How does rent-to-rent work?

You rent a property from the owner, usually on a company let or management agreement, and with their written permission let it out yourself, room by room or as serviced accommodation. Your profit is the difference between the income and all your costs.

How do you calculate rent-to-rent profit?

Take the monthly income from rooms or nightly stays, subtract the rent paid to the owner, bills, management, cleaning, platform fees and other costs. Divide your setup costs by that monthly profit to see how many months it takes to pay back.

Is rent-to-rent legal?

It can be, when the owner gives written permission, the lender and insurer allow it, and the property meets the licensing, planning and safety rules for how it is let. Take legal advice on the agreement.

What is a good payback period?

It should sit comfortably inside the contract term, with room for slower months. If setup costs only pay back near the end of the contract, the deal leaves little margin for error.

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Information, not advice. The calculator gives illustrative figures based on what you enter. It is not a personal recommendation and does not constitute financial, investment, mortgage, tax or legal advice.

Guides that use this tool

How to calculate the full cost of a buy, refurbish, rent project10 min read
How to calculate HMO cash flow after bills and costs8 min read
Is a cheap property actually a good investment?7 min read

All property investing guides →  ·  Buy-to-let mortgage calculator →

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