Budget 2025 Wizard Manual
Overview
The Budget 2025 Wizard is a specialized tool designed to help UK property investors understand how the Autumn Budget 2025 changes affect their tax position. It compares your estimated tax liability before and after the Budget using the same income and property information.
Key Features
How the Wizard Works
The wizard takes you through a series of questions to build a picture of your tax situation, then shows you how the Budget changes affect your position.
Step-by-Step Process
- Ownership Structure — Individual vs. company ownership
- Property Profile — Property details and rental income
- Income Context — Other income sources that affect tax bands
- Future Plans — Property disposals for capital gains tax
- Results — Comparison of tax position before and after Budget
Tax Years Compared
- 2024-25 — Pre-Budget baseline
- 2027-28 — Post-Budget when all measures are in effect
Detailed Frequently Asked Questions
Core Questions
What does this calculator actually show?
This tool shows how the 2025 Budget changes your tax position.
It does not show your total tax bill.
We compare your estimated tax before and after the Budget using the same income information.
Why doesn't this match my accountant's calculation exactly?
This estimate is based on the information you provided and standard tax rules.
It does not include all reliefs, allowances or planning strategies.
Your accountant may include additional details that this tool does not capture.
What tax years are being compared?
We compare:
- 2024–25 (before the Budget)
- 2027–28 (after the Budget measures are fully in effect)
Does this include property purchases or refinancing?
No. This tool does not include:
- Property purchases
- Stamp Duty on new purchases
- Mortgage or refinancing calculations
Is this advice I can rely on?
This tool provides estimates for information only.
It is not tax, legal or financial advice. You should speak to a qualified adviser before making decisions.
Advanced Questions
Why is my Corporation Tax shown even though the Budget didn't change it?
We show Corporation Tax so you can see your current and future tax position side by side.
In the 2025 Budget, Corporation Tax rates did not change, so the difference shown is £0.
Why doesn't Stamp Duty show a full calculation like other taxes?
Stamp Duty Land Tax was not changed by the 2025 Budget.
Because there is no Budget impact, we show this as an acknowledgement rather than a full calculation.
How is rental income treated in this tool?
Rental income is treated as an annual snapshot.
For individuals, it is assessed under Income Tax rules.
For limited companies, it is assessed under Corporation Tax rules.
Does this include Capital Gains Tax if I sell a property?
Capital Gains Tax is included only if you tell us you plan to sell a property.
If no sale is planned, Capital Gains Tax is not calculated.
Why are some figures rounded?
Figures are rounded to the nearest £10 to make the results easier to read.
This may cause small differences compared to detailed calculations.
Budget Changes Covered
Income Tax Changes
- Rental Income Tax: +2 percentage points (20%→22%, 40%→42%, 45%→47%) from April 2027
- Dividend Tax: +2pp on basic & higher rates (8.75%→10.75%, 33.75%→35.75%) from April 2026
- Savings Income Tax: +2pp (20%→22%, 40%→42%, 45%→47%) from April 2027
Other Measures
- Council Tax Surcharge: New charge for properties over £2 million from April 2028
- Income Tax Thresholds: Frozen for 3 years from April 2028
- Corporation Tax: No changes (rates remain at 25%)
Troubleshooting
Common Issues
Results show £0 change
This could mean:
- Your income levels don't reach the affected tax bands
- You're not affected by the specific Budget measures
- Some income types (like corporation tax) didn't change
Unexpected tax increase amount
Check that:
- All income sources are included
- Ownership type is correct
- Property disposal details are accurate if applicable
Related Resources
- Budget 2025 Summary — Complete overview of Budget changes
- Budget 2025 Analysis — Detailed impact analysis
- Rental Yield Calculator — For comprehensive property investment analysis
Last updated: December 2025
Stay Updated
Subscribe to our weekly briefings for curated property news and insights