🇬🇧United Kingdom
Affordability, tax structure, and property investment analysis — built for the UK market.
These tools go beyond the standard repayment calculation. They're for buyers and property investors who need to understand affordability limits, the impact of Section 24, and whether a limited company structure makes sense for their portfolio.
All premium calculators are inside Stresst
Free to download. Premium features unlocked inside the app — no browser input fields, no waiting for a webpage to load.
What's included
3 calculators. Run them in the app.
Affordability Calculator
PremiumChecks what a lender would actually let you borrow, using loan-to-income ranges, committed expenditure, and an interest rate stress test. Shows your maximum loan under standard underwriting before you approach a lender.
Section 24
PremiumShows the exact impact of mortgage interest restriction on your personal tax bill. Particularly relevant for portfolio landlords on higher income tax rates — models the net cost of holding versus incorporation.
Personal vs Ltd Company / SPV
PremiumFull side-by-side comparison of buying as an individual (income tax on rental profits) versus through a limited company or SPV (corporation tax, extraction costs, retained earnings). Models the full picture, not just the headline rate.
🇬🇧All of this, in one app.
Free to download. Premium tools unlock seamlessly inside Stresst — no subscriptions to juggle, no separate apps to install.