Pre-filled with typical Technology & SaaS figures: 10 employees, £65,000 average salary. Adjust the sliders for your actual numbers.
Corporation Tax Calculator
UK corporation tax is 25% on profits above £250,000 and 19% on profits under £50,000, with marginal relief in between. Enter your taxable profit to see your exact bill and effective rate.
£0£225,000£500k
How Corporation Tax Works
• Profits up to £50,000: 19% (small profits rate)
• Profits £50,001 - £250,000: 19-25% (marginal relief)
• Profits above £250,000: 25% (main rate)
Your Corporation Tax Bill
£55,875
Marginal relief band (19-25%)
Effective rate24.8%
Taxable profit£225,000
After-tax profit£169,125
Monthly Tax Provision
£4,656 /month
Technology & SaaS — Key Concerns
- High salaries mean employer NI is the biggest employment cost increase
- R&D tax credits partially offset corporation tax — calculate net position
- Fast-growth companies may cross VAT threshold quickly
Corporation Tax Calculator for Other Industries
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FreshBooks
Accounting software built for small business owners. Invoicing, expenses, tax reporting — MTD-compatible from day one.
Start Your Free FreshBooks Trial →Frequently Asked Questions
- What is the UK corporation tax rate?
- The main rate is 25% for profits above £250,000. The small profits rate is 19% for profits up to £50,000. Marginal relief applies between £50,000 and £250,000.
- When is corporation tax due?
- Corporation tax is due 9 months and 1 day after the end of your accounting period. Large companies (profits over £1.5m) pay in quarterly instalments.
- Can I reduce my corporation tax bill?
- Yes, through allowable business expenses, capital allowances, R&D tax credits, pension contributions, and charitable donations.