New Year, New Tools: Introducing RealYield Calculator v2.0

The "napkin calculation" era of property investing is officially over. With erratic interest rates, Section 24 tax changes, and rising service charges, a simple "rent minus mortgage" calculation doesn't cut it anymore.

Today, we are thrilled to launch RealYield Calculator v2.0. We've audited the feedback from over 5,000 UK landlords to build the most comprehensive property analysis suite yet. Here's what's new.

1. Dynamic Stress Testing

Our new Stress Test Engine allows you to instantly slide your interest rate up and down. Watch in real-time as your cashflow reacts. You can instantly see your "Break Even Rate"—the exact interest percentage where your profit hits zero.

If your break-even rate is 5.5% and lenders are offering 5%, you have no safety margin.

2. The 10-Year View (Forecasting)

Property is a long game, yet most analysis stops at month one. Our new Projection Module models the next decade of your investment.

It factors in:

Rent inflation (compounding)
Cost inflation (so services charges don't stay flat!)
Capital appreciation

This reveals the "J-Curve" of property investing—how a deal that breaks even today might generate substantial wealth in year 7, or conversely, how a high-yield flat might become a liability as maintenance costs outpace rent.

3. Scenario Comparison: Head-to-Head

Should you buy in your personal name vs a Limited Company? Should you buy that HMO or two single-lets?

Our Comparison Mode lets you run scenarios side-by-side. No more opening five browser tabs. Load the "Ltd Co" template against the "Personal Name" template and see the net cash difference instantly.

4. AI Validation

Sometimes you just want a second opinion. Our integrated AI Analyst reads your entire deal configuration and offers an unbiased critique.

It spots risks you might miss (like high management fees relative to rent) and benchmarks your deal against typical market performance.

Analysis for the Modern Market

The "napkin calculation" era is over. To survive and thrive in 2026, you need to see the full picture—tax, timelines, and stress tests included.

Try the new features today. Stress test your portfolio in seconds.

Launch Calculator v2.0

Frequently Asked Questions

How does the Stress Test Engine work?

Our Stress Test Engine allows you to model how interest rate changes, service charge hikes, and void periods affect your monthly cashflow. It helps you find your 'Break Even Rate'—the point where your investment stops being profitable.

What is the 10-Year View in the calculator?

The 10-Year View (Projection Module) models the long-term performance of your property, accounting for rent inflation, cost increases, and capital appreciation to show the total return on investment over a decade.

Can I compare different buying strategies?

Yes, our Comparison Mode allows you to run side-by-side scenarios for buying in a personal name versus a Limited Company, or comparing two different properties to see which offers better returns.