Online launch to calculate BTL profitability

With the intention of weeding out the profitable from the duds, the tool analyses the deal, highlights potential risks and provides an accurate portrait of investment potential in real terms.

The site's founder Jim Marley believes that certain socio-economic factors fall by the wayside when an investor is appraising a possible investment property.

“Buy-to-let is a very different concept to buying domestic property as the decision is financially rather than emotionally driven – it is a business move," he explained.

"For good financial returns, rental income and property value should be balanced to give the best result. Cash flow potential and value in rental properties depends on knowing where the growth spots are and the average person can’t always predict the factors affecting them.

"This is where dothesums.co.uk comes in. It takes into account all of these dynamics and helps highlight investment hotspots, in turn eradicating speculation around whether it is a wise purchase.”

Spanning five-years, the report costs landlords £49.50 and can be used by both amateur landlords and more experienced investors for the same purposes.