The Complete Toolkit for UK Property Investors
- Calculate true net yields after all UK costs
- Stress test deals against rate hikes and voids
- Chat with AI property, tax & mortgage advisors
"Built by UK property investors, not software companies."
Everything You Need in One Place
Stop switching between spreadsheets, forums, and calculators. RealYield brings it all together.
7 Specialized Calculators
From yield analysis to stamp duty — every calculation tool you need for BTL investing.
3 AI Advisors
Chat with property, tax & mortgage experts powered by AI. Get answers in seconds, not days.
Learning Hub
17+ guides, glossary of UK property terms, and free downloadable templates.
The Calculator That Shows What Others Hide
Most calculators ignore the reality of UK property investing. Here is an actual London leasehold flat example. Note the difference between “Yield” and “Reality”.
Property Details
The “Real Costs” often ignored:
- Service Charge-£3,420
- Agent Fees-£1,900
- Mortgage Interest-£1,740
- Total Running Costs-£9,040 /yr
Our 4-Perspective Analysis
Built by UK landlords for investors.
Pays you comfortably every month.
Return on your £66k equity. The killer metric.
Not all calculators are created equal.
Standard calculators give you a vanity metric. RealYield gives you an investment strategy.
| Feature | Basic Tools | RealYield |
|---|---|---|
| Gross Yield Calculation | ||
| Service Charge Adjustments | ||
| Agent Fee (% or £) Toggles | ||
| Mortgage Stress Testing | ||
| Safety Headroom (Break-even) | ||
| AI Deal Intelligence | ||
| Shareable Deal Links | ||
| Void Period Modeling | Basic | Advanced |
AI-Powered
Context-aware insights for the 2025 UK market.
Shareable
Send live deal links to partners or lenders.
Real-Time
Instant feedback as you adjust the numbers.
Your Complete Calculator Suite
Every tool you need to analyse, plan, and optimise your BTL portfolio.
RealYield Calculator
CoreFull BTL deal analysis with stress testing and AI insights
Section 24 Calculator
Calculate the mortgage interest tax disallowance impact
Personal vs Ltd Company
Compare tax outcomes for both ownership structures
BTL Mortgage Calculator
Model loan amounts, LTV, ICR, and monthly payments
Stamp Duty Calculator
Calculate SDLT for additional residential properties
Capital Gains Tax
Estimate CGT liability when selling BTL property
Ask the Experts
Get instant, educational guidance from specialised advisors — no waiting, no booking required.
Property Expert
UK Buy-to-Let Investment Consultant
Discuss deal analysis, yield assessment, property sourcing, renovation ROI, void mitigation, and portfolio building strategies.
Tax Advisor
UK Property Tax Specialist
Explore Section 24, capital gains tax, corporation tax, personal vs limited company structures, and tax-efficient ownership strategies.
Mortgage Broker
UK BTL Mortgage Specialist
Learn about BTL mortgage types, ICR stress tests, remortgaging strategies, limited company mortgages, and how to strengthen your application.
What UK Landlords Are Saying
Real feedback from investors using RealYield to make smarter decisions.
“Finally, a calculator that includes service charges and agent fees. Saved me from a bad London flat deal.”
James P.
Portfolio Landlord, Manchester
“The AI tax advisor explained Section 24 better than most accountants. Worth signing up just for that.”
Sarah K.
First-Time BTL Buyer, Bristol
“The stress testing feature is brilliant. I can see exactly when my cashflow turns negative if rates rise.”
Mike D.
8-Property Portfolio, Birmingham
Learn & Grow Your Portfolio
Guides, analysis, and honest numbers for UK landlords.
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Understanding the additional 5% surcharge and how stamp duty affects your buy-to-let returns. A practical guide to calculating total acquisition costs in 2026.
Most landlords focus on mortgage payments and rental income, but it's the overlooked expenses that quietly eat into your margins. Here's the full list of costs you need to account for to understand your true rental profit.
Ready to Make Smarter Property Decisions?
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