Buy to Let Help

How it works

From your first calculation through to a fully tracked deal pipeline. Start free, upgrade when you need more.

1

The Calculator

Enter purchase price, rent, mortgage terms, and costs. See cash flow, yield, and ROI calculated instantly.

  • Purchase price, mortgage terms, and rental income
  • Running costs including maintenance, insurance, and management fees
  • Monthly cash flow, annual profit, yields, and ROI
Detailed input/output referenceAll guides
2

Scenarios

Free account

Save any calculation as a scenario. Come back to update assumptions, compare side by side, and track your deal pipeline from draft through to offer.

  • Save any calculation as a named scenario
  • Revisit and update assumptions over time
  • Compare properties side by side
  • Track deal stages from draft through to offer
3

Area Insights

Premium

Get automated valuation estimates, area yield data, and 5-year price growth for any postcode. See how your numbers compare to the local market.

  • Automated valuation estimates for sale and rental value
  • Area yield data based on real market transactions
  • 5-year price growth trends
View pricing
4

Advanced Analysis

Premium

Target ROI solves for the rent or price needed to hit a return. BRRR models refurbishment-refinance outcomes. Comps let you benchmark against the local market.

  • Target ROI — solve for the rent or price needed to hit a return target
  • BRRR — model refurbishment, refinance, and post-refinance outcomes
  • Comps — add comparable properties and benchmark against the local market
View pricing

Assumptions & Limitations

Assumptions Used
  • Transaction tax is calculated using current UK rates for SDLT (England & NI), LBTT (Scotland), or LTT (Wales)
  • Limited company purchases are always treated as additional property purchases
  • If no maintenance figure is entered, 1% of the purchase price per year is assumed
  • Void periods (empty property) are not included in the calculations
  • Capital appreciation and depreciation are not considered
  • Refinance analysis assumes the property is fully let at a stabilised rent
  • Holding costs during refurbishment are not modelled
Not Included
  • Income tax or corporation tax calculations
  • Capital gains projections
  • Void periods or tenant turnover
  • Property value appreciation over time
  • Mortgage arrangement or broker fees
  • Rental increase projections
  • Bridging finance or short-term lending costs
  • Refurbishment timelines or holding periods

Ready to Calculate?

Now that you understand how it works, try the calculator with your own property details.

Open Calculator