Budget announcements make headlines.

Tax bills arrive later — often in ways that aren't obvious at first glance.

For property investors, the impact of Budget 2025 doesn't land all at once. Some changes apply immediately, others later, and some compound over time.

That's why we've built a new tool.

Most tax calculators answer a single question:

"What is my tax this year?"

But after Budget 2025, a more useful question for many landlords is:

"How does my tax change over time if nothing else changes?"

Rental income tax changes and dividend tax changes do not start in the same year. Looking at just one year can be misleading.

The Compare Tax Years calculator shows your estimated property-related tax side by side for:

• 2025/26
• 2026/27
• 2027/28

Using the same inputs each time.

For each year, you'll see:

• Total estimated tax
• Effective tax rate
• Change vs the baseline year
• What drove the change (income tax or dividend tax)

This makes it easy to see:

• When increases actually begin
• How large they are
• Which policy matters most for your situation

Earlier this year, we launched the Budget 2025 Impact Wizard.

The two tools work together:

Budget Impact Wizard

→ Explains what changed and why

Compare Tax Years calculator

→ Shows what that means for your tax bill over time

If you want to understand policy, start with the Wizard.

If you want to understand outcomes, use Compare Tax Years.

This tool focuses on:

• Income tax (individuals)
• Corporation tax and dividend tax (companies)

It deliberately excludes:

• Capital Gains Tax
• Stamp Duty
• Council tax
• Complex reliefs and bespoke planning

That narrow scope is intentional. It keeps the comparison clear, explainable and consistent across years.

If you're a landlord or property investor wondering how Budget 2025 affects you over time, the Compare Tax Years calculator gives a clear, side-by-side view — without guesswork.