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InvoicerInvoicer, a product of GK Tools

Invoice from the job site in under a minute

Mobile invoicing for field workers and tradespeople. No laptop needed and no back office required: create and send professional invoices from your phone while you’re still on site.

Try 3 Months Free

Works on iPhone and Android, with no app download needed.

Invoice 0527 To Mr Davies
Call-out£45.00
Replace leaking radiator valve£95.00
Total£140.00

Why tradespeople love mobile invoicing

Send the invoice before you’ve even left the job site. The customer has it in their inbox while the work is still fresh, and you get paid faster for it.

  • Works on your phone

    Made to fit a phone screen. No pinching, zooming or squinting. Big buttons and easy typing on iPhone and Android.

  • Quick to use

    Create an invoice in under 60 seconds. Pick the client, enter the amount and use the send button. Your customer receives a professional PDF straight away.

  • Invoice before you drive away

    Invoice while you’re still at the customer’s property, so you never forget to do it when you get home. Customers pay faster when they receive the invoice straight away.

  • Saves your details for you

    Your business details and client records save themselves as you type, so a phone call halfway through doesn’t cost you the work.

  • Works in your van

    Mobile data or wifi, it works with any connection. Finish the job, sit in your van, and the invoice is sent before you start the engine.

How mobile invoicing works

From job finished to invoice sent, in under 60 seconds.

  1. Pull out your phone

    Open Invoicer in your phone’s web browser. No app to download and no updates to install.

  2. Pick the customer and enter the amount

    Choose the customer from your saved list, then type what you did and the price. Large buttons make it easy even with work gloves on.

  3. Use the send button and the job is done

    A professional PDF invoice lands in their inbox straight away. You get a copy too. Drive to your next job knowing it’s already invoiced.

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.

Perfect for field-based tradespeople

  • PlumbersInvoice before leaving the property
  • ElectriciansSend the invoice from the job site
  • GardenersInvoice as soon as the job’s done
  • BuildersInvoice from the build site
  • HandypeopleQuick invoicing between jobs
  • CleanersInvoice straight after the clean

Everything you need on your phone

  • Your client list in your pocket. All your customer details saved and kept in step. Pull up any client in seconds from your phone.
  • Professional PDFs. Every invoice has your logo and business details, made straight away on your phone.
  • VAT worked out. VAT is worked out for you if you’re registered. No calculator needed.
  • Unique numbering. Each invoice gets its own number automatically: your prefix, the year and a number that runs in order. Nothing repeats, so your records stay tidy.
  • Track payments. Mark invoices as paid from your phone and see what’s still outstanding at a glance.
  • Works everywhere. Start on your phone, finish on your computer, or the other way round. Everything stays in step by itself.

Simple pricing, unlimited mobile invoicing

Unlimited invoices from any device.

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

InvoicerA product of GK Tools
To your 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

Common questions about mobile invoicing

Do I need to download an app?
No! Invoicer works directly in your mobile browser (Safari, Chrome, etc.). No app store, no downloads, no updates. Just open the website and you're ready to invoice.
Does it work on iPhone and Android?
Yes! Works perfectly on both iPhone and Android phones and tablets. Also works on your computer - everything syncs automatically.
What if I have poor signal at a job site?
As long as you have basic mobile data, it will work. The interface is lightweight and fast. If you have no signal, you can invoice once you're back in your van or at your next location.
Can I add my logo from my phone?
Yes! Upload your logo from your phone's photo library and it appears on all your invoices. Only need to do it once.
Is it really as fast as you say?
Honestly, yes. Once your clients are saved, creating and sending an invoice takes under 60 seconds: pick the client, type the work and the price, tap send.

Not your trade?

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

Send your next invoice before you start the van

Finish the job, invoice from the phone in your pocket, and get paid quicker for it. No complicated setup: you can be invoicing in 5 minutes.

Try 3 Months Free

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

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