2025/26 Tax Year

Job Pricing & Profit Calculator

Cost the job, set your mark-up, and see exactly what lands in your pocket after tax. Print a clean quote for the client or a full breakdown for yourself.

01

Job details

For your paperwork
days
This changes how your tax is worked out further down.
02

What the job costs you

Direct costs
£
Everything you buy in for this job — parts, timber, fixings, skip hire, waste disposal.
%
Contingency added£0.00
Covers price rises, breakages and the bits you always forget. 5–10% is normal.
hrs
£
Value of your own labour£0.00
Price your own time, always. Your labour is a real cost of the job even though HMRC doesn't treat your own drawings as a business expense. Leaving it out is the fastest way to work for nothing.
£
Labour you pay out for — subbies, labourers, an extra pair of hands for the lift.
£
£
Parking, congestion charge, fuel for this job, building control fees, permits.
03

Overheads this job must carry

Fixed costs
£
Van, insurance, tools, phone, accountancy, advertising — the costs you pay whether you're on site or not.
04

Your mark-up

Profit on top
%
Added on top of your costs. 15–30% is typical for domestic work.
Mark-up and margin are not the same number. A 20% mark-up on £1,000 of cost gives a £1,200 price — and £200 profit on £1,200 is a 16.7% margin. Quote off mark-up, judge yourself on margin.
05

Tax & VAT

What to set aside
£
Your best guess at profit for the whole tax year. This tells us which tax band this job lands in — the same job costs you more tax at £60k than at £20k.
I'm VAT registered (add 20% to the invoice)
VAT isn't your money — you collect it and pass it to HMRC. Registration is compulsory once turnover passes £90,000 in any rolling 12 months.
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Your numbers will appear here

Fill in the costs and your mark-up, then price the job to see the full breakdown.

Pricing well is half the job. Keeping it is the other half.

We're accountants for tradespeople. We make sure every allowance, expense and relief you're entitled to is claimed — so you get the maximum out of every job you price.

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This calculator gives estimates for the 2025/26 tax year and is for guidance only. It does not account for CIS deductions, VAT schemes, student loans, other income or reliefs specific to you, and it is not professional tax advice. For pricing and tax planning built around your business, speak with our advisors.
© Hammer Ledger Tax Ltd