Annual Tax Comparison — Two Scenarios
Compare two annual tax scenarios side by side and see exactly how income tax, National Insurance and net pay differ between them.
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See the difference between two scenarios
A pay rise, a pension change or a different income level all shift your tax — but by how much? The Basic Annual Tax Explorer puts two scenarios next to each other so the difference is obvious.
It's an easy way to weigh a decision without doing the maths twice.
Two scenarios
Compare two taxable-income scenarios at once.
Income tax & NI
Both taxes calculated for each scenario.
Clear net difference
See the net-pay gap immediately.
Multiple tax years
Compare within supported UK tax years.
How it works
- Enter scenario oneYour first taxable-income figure and tax year.
- Enter scenario twoThe alternative you want to compare.
- Read the differenceSee income tax, NI and net pay side by side.
Frequently asked questions
What can I compare?
Two annual taxable-income scenarios — useful for weighing a pay change, a pension contribution or different income levels.
Does it show National Insurance too?
Yes — each scenario estimates income tax and National Insurance, and shows the net-pay difference.
Is it free?
Yes — every ODOpt tool is free to use with no sign-up. You can go ad-free with an optional subscription.
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