Free Trade Tools & Calculators

Work out exactly what to charge per hour to cover costs, pay yourself fairly and hit your profit targets.

Calculate your gross and net margin on any job to make sure every quote is actually profitable.

Estimate total labour costs for a job based on team size, hours and hourly rates.

Add the right markup to materials so you're never losing money on supplies again.

Estimate your UK income tax and National Insurance for the 2024/25 tax year as a self-employed tradesman.

Find out how much CIS tax you've overpaid and estimate your HMRC refund as a subcontractor.

Log business miles and expenses using HMRC-approved rates. See your tax saving in real time.

Create and download professional invoices instantly — no account needed.

Calculate overhead and profit (O&P) on direct costs — separate percentages for cost-plus contracts and insurance work.

Track actual vs estimated costs per job. See your real profit on every job, not just what you quoted.

Plan monthly cash flow as a tradesman. Enter income, expenses and CIS deductions to see your monthly position.

Calculate total annual van costs including finance, fuel, insurance, VED and servicing.

Track construction retention held across live jobs. See cash flow impact and defects period release dates.

Estimate cleaning costs by property size and service type — standard, deep clean, or end of tenancy.

Estimate mowing, scarification and garden maintenance costs by lawn size and service.

Estimate full re-roofing costs by property type, material and location. Includes scaffolding and disposal.

Fill in a professional work order online and print or save as PDF. Free, no signup, no watermark.

Create a professional receipt in seconds. Fill in job details, add line items, print or save as PDF.

Get a ballpark estimate for roofing work based on roof size, pitch and material type.

Calculate how many litres of paint you need for any room or surface area.

Estimate the right heating or cooling capacity (BTU/kW) for any room or building.

Calculate total electrical load for a property to size circuits and consumer units correctly.

Estimate plastering costs per m² for skim, full re-plaster, artex removal, and render — with UK 2026 pricing.