ToolsFree

Property Tools

Free UK property calculators and AI-powered renter tools to help you understand costs, protect your rights, and make better decisions.

Analyse any UK property listing — free

Paste a Rightmove, Zoopla, or OnTheMarket URL and get instant AI analysis — red flags, fair valuation, and negotiation strategy.

Tip: Rightmove listings tend to include more detail, giving you richer analysis results.

Buyers

Calculators for stamp duty, mortgages, affordability, and purchase costs.

Mortgage & affordability

Costs & tax

Leasehold

Valuation & improvement

Renters

Tools for renters — costs, deposit protection, tenancy analysis, and negotiation.

Investors

Buy-to-let yield and investment analysis.

Research

Explore postcodes, sold prices, and local area data.

Area research

Safety & environment

Market data

Frequently asked questions

Are these calculators free?
Yes, all calculators are completely free to use with no signup required. Use them as many times as you like — there are no limits or hidden charges.
How accurate are the calculations?
Our calculators use official 2025/26 tax year rates for stamp duty, income tax, and National Insurance. Running cost estimates (council tax, energy, insurance) are based on UK averages and may vary by location and property type.
What tax year do the calculators use?
All calculators use the current 2025/26 UK tax year rates, including the April 2025 stamp duty changes (FTB threshold of £300,000, additional property surcharge of 5%) and updated National Insurance rates.
Do I need to create an account?
No. All tools work without signing up — including the AI-powered renter tools (tenancy scanner, tenant rights, rent negotiation) and the AI property valuation. The only thing that requires an account is the full property analysis, which analyses actual listings from Rightmove, Zoopla, and OnTheMarket.

Research any UK property in minutes

Paste a Rightmove, Zoopla, or OnTheMarket link and get instant AI analysis — red flags, fair valuation, flood risk, crime data, and negotiation strategy.

Try HomeThink free