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InvoicerInvoicer, a product of GK Tools

Invoicing software for builders & contractors

Finish a stage of the build and invoice it from the van or the site office, while the work is fresh in your customer’s mind.

Try 3 Months Free

VAT worked out for you, on any phone, tablet or computer.

Invoice 0148 To Mr & Mrs Patel
Extension, stage 2: first fix£8,500.00
Skip hire, 8 yard£320.00
VAT at 20%£1,764.00
Total£10,584.00

Free builder invoice template (UK)

A ready-made builder invoice showing labour by the day, materials and skip hire. The example is for a VAT-registered business, so it adds VAT at 20% - if you are not VAT-registered, you do not add VAT. Download it, print it, or copy the layout - it is free and you do not need an account.

Example builder invoice with labour by the day, materials and skip hire, for a VAT-registered business, with VAT at 20%

What a UK invoice needs to show

  • A unique invoice number
  • Your name or business name, address and contact details
  • Your customer's name and address
  • A clear description of the work, and the date you did it
  • The date of the invoice
  • The amount for each item and the total owed
  • If you are VAT-registered: your VAT number and the VAT amount

Based on HMRC's guidance on invoicing customers.

Download the template (PDF) Or send one from Invoicer - free for 3 months

Why builders choose Invoicer

  • Invoice from the site

    Complete a stage of the build and invoice from your phone or tablet on site. The customer gets it while the work is fresh in their mind.

  • Stage payments made easy

    Big projects paid in stages: invoice each milestone as you complete it and keep the cash flowing.

  • Labour and materials on separate lines

    Labour, materials and subcontractors listed separately, so customers see exactly what they are paying for.

  • VAT sorted

    VAT registered? It is worked out for you, laid out the way HMRC expects. Not registered? Turn it off.

  • A professional look

    Your logo, business details and payment terms on every invoice, even as a one-person builder.

  • Insurance certificates

    Keep your public liability certificate to hand and attach it when a customer or developer asks.

  • Know who has paid

    See which stage payments have come in and which invoices are still out, across every build.

  • Phone, tablet or computer

    Invoice from your phone on site, or from the computer at home. Everything stays in step.

Made for every kind of building work

  • House extensionsExtensions, loft conversions, conservatories
  • RenovationsFull house renovations and refurbishments
  • General buildingBrickwork, blockwork, structural work
  • New buildsNew construction projects and developments
  • Building repairsProperty repairs, maintenance and fixes
  • Commercial workOffice fit-outs and commercial construction

How builders use Invoicer

From a finished milestone to an invoice sent, in minutes.

  1. Save your projects

    Add the customer for each project once: homeowners, property developers or commercial clients.

  2. Complete a stage

    Foundations, first fix, second fix or completion. Each milestone is its own invoice.

  3. Send the invoice

    Pick the project, add “Extension, stage 2: first fix, £8,500 + VAT” and use the send button. A professional invoice is in their inbox straight away.

Invoicer on a phone: making a new invoice, with the customer list shown as large buttons
Making an invoice: your customers are big buttons, so you pick one with a single press.
Invoicer on a phone: an invoice with a message saying it has been marked as paid
When the money comes in, mark it paid and the invoice says so.

Pricing for builders

One simple price for unlimited building invoices.

Unlimited customers and invoices on both. Cancel any time from your account.

InvoicerA product of GK Tools
To your building business
Monthly£10 a month

Pay as you go. Stop whenever you like.

Yearly£100 a year

Works out at £8.33 a month, £20 less than paying monthly.

Due today£0.00

The first 3 months are free, and no card is needed to start.

Start your free trial

Questions from builders

Can I invoice for stage payments?
Absolutely. Perfect for big projects paid in stages. Invoice for each milestone as you complete it - foundation, first fix, second fix, completion. Keeps your cash flow healthy throughout the build.
Can I break down labour and materials separately?
Yes. Add multiple line items: "Labour - 5 days @ £200", "Materials - bricks and cement", "Subcontractor - plastering". Customers see exactly what they're paying for.
Is it suitable for both small jobs and big projects?
Yes. From a £500 repair job to a £50,000 extension - works the same way. Small jobs get quick invoices, big projects can have detailed breakdowns.
Can I attach my insurance certificates?
Yes. Upload your public liability insurance, trade certifications, and any other documents. Attach them when customers, architects, or project managers request proof.
Will it work for trade endorsement schemes?
Every invoice carries a unique, traceable number, a professional layout, and all your business details - the things schemes such as TrustMark or Checkatrade usually ask to see. Invoicer is not affiliated with any scheme, so check the specific requirements of the one you are applying to.

Not your trade?

Invoicer is set up just as well for gardeners and landscapers, electricians, plumbers and heating engineers, sole traders, older tradespeople who want big, clear screens, members of trade schemes and anyone invoicing from a phone.

Send your next stage invoice from the van

Invoice each stage as you finish it and keep the cash flowing through the whole build.

Try 3 Months Free

No card needed. Works on any phone, tablet or computer.

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