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Indicative 2026/27 estimate

Delivery Driver Tax Calculator

Estimate the Income Tax and Class 4 NI added by self-employed delivery profit.

Do not combine expenses with the trading allowance.
For example, employment or pension income before tax.
Used for both Income Tax and incremental Class 4 NI.
Indicative Income Tax + Class 4 NI£3,231.80
Delivery profit
£25,000.00
Income Tax estimate
£2,486.00
Class 4 NI estimate
£745.80
Incremental estimateCompares tax before and after the delivery profit entered.
2026/27 ratesIncludes the Personal Allowance taper and published Scottish bands.
Not includedPayments on account, student loans, VAT, benefits and personal reliefs.

How the estimate works

Delivery profit is gross delivery income minus the allowable expenses entered, floored at zero for this simple estimate. The calculator compares Income Tax before and after that profit, then does the same for Class 4 National Insurance using any other self-employed profit entered.

For 2026/27, Class 4 is estimated at 6% on self-employed profit from £12,570 to £50,270 and 2% above £50,270.

What the calculator cannot know

It does not model loss relief, pension contributions, Gift Aid, Marriage Allowance, Blind Person’s Allowance, savings, dividends, capital gains, student loans, High Income Child Benefit Charge, payments on account, VAT or benefit interactions. It assumes the figures entered are annual amounts and that the delivery work is genuinely self-employed.

This is not your Self Assessment calculation. Use HMRC-approved filing software or an accountant for the actual return.

Expenses and the trading allowance

HMRC says you cannot claim business expenses if you use the £1,000 trading allowance. Enter the deduction approach you reasonably expect to use, not both. If expenses exceed income or losses matter, this calculator is too simple for the decision.

Delivery tax calculator FAQs

Why is this different from 20% of my profit?

The Personal Allowance, tax bands, other income and Class 4 NI all affect the result. Scotland also has separate non-savings income bands.

Does it include Class 2 National Insurance?

No compulsory Class 2 amount is added. Voluntary and special Class 2 situations require a separate decision.

Does TaxBuddie submit this figure?

No. The calculator runs in your browser. TaxBuddie provides record keeping and exports, not HMRC submissions.

Official sources

Important: General estimate only, not personalised tax advice or a filing calculation. Rates reflect published 2026/27 figures. TaxBuddie does not submit tax returns or MTD updates.

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