Mobile Invoicing10 May 2026· 9 min read

Send Professional Invoices From Your Phone While On-Site

You finish the job. The customer is happy. You pack up, drive off, and promise to “send the invoice tonight.” Tonight becomes the weekend. Payment slips. That cycle ends when you invoice from your phone — professionally, on site, in under a minute. Here is exactly how TraderInvoice makes that happen.

Built for tradespeople on the move

Speak your job. Get a professional invoice. Send it before you leave the street.

Start Free — No Credit Card

5 free invoices/month · Works on any phone · Setup in 2 minutes

Why Sending Invoices On-Site Gets You Paid Faster

The single biggest factor in how quickly a customer pays is how soon they receive your invoice after the work is done. Tradespeople who invoice on the same day — while the job is still fresh in the customer's mind — consistently get paid days or weeks sooner than those who batch invoices for Sunday evening admin sessions.

On-site invoicing also protects your income in three practical ways:

  • You capture every detail while you are still looking at the job — materials used, hours on site, extras agreed on the day. Nothing gets forgotten.
  • The customer sees professionalism immediately. A branded PDF in their inbox before you leave builds trust and reduces disputes later.
  • You stop giving away your evenings. Mike T., a plumber in Manchester, told us he used to spend two hours every Sunday on invoices. Now he does them in the van on the way home.

The barrier has never been willingness — it has been tools. Typing line items on a phone keyboard, fighting spreadsheet templates, or waiting until you are back at a desk. TraderInvoice removes that barrier entirely.

The Old Way vs Invoicing From Your Phone

Old approachTraderInvoice on site
Write notes on paper, invoice at homeSpeak the job into your phone on site
Type line items on a tiny keyboardAI builds itemised lines from your voice
Email a Word doc or spreadsheet PDFSend a branded professional PDF instantly
Customer waits days for the invoiceCustomer has it before you leave
Evening admin eats into family timeDone in the van in under a minute

How TraderInvoice Works On Site — Step by Step

TraderInvoice is a voice-first invoicing app built specifically for tradespeople. You do not need accounting knowledge, a laptop, or an app store download. Here is the exact workflow from the moment you finish a job:

1

Open TraderInvoice on your phone

Log in from any mobile browser. No app install — works on iPhone and Android. Your customers, branding, and invoice history are already there.

2

Tap the microphone and describe the job

Speak naturally: customer name, what you did, labour hours and rate, materials, call-out fee, VAT if applicable. The AI understands trade language — stopcock, consumer unit, refrigerant, flashing, and more.

3

Review and adjust in seconds

TraderInvoice shows a full preview with itemised line items and totals. Edit anything before you send. Pick an existing customer or add a new one on the spot.

4

Send before you leave

Email the branded PDF directly, share via WhatsApp, or download for your records. Your customer has a professional invoice in their inbox while you are still on the drive.

Example — what you might say on site

“Invoice for Sarah Johnson at 14 Oak Lane. Replaced the kitchen mixer tap and isolation valve. One hour labour at seventy-five pounds per hour. Parts forty-two pounds. Standard call-out fee applied. VAT at twenty percent.”

TraderInvoice turns that into a fully itemised, branded invoice — customer details, line items, subtotal, VAT, and total — ready to send.

Try it on your next job — free

Create your account in two minutes. Your first on-site voice invoice costs nothing. No credit card, no trial that expires.

Create Your Free Account

Everything You Can Do From Your Phone On Site

TraderInvoice is not just a voice-to-PDF tool. From your phone, on any job, you can run your entire invoicing workflow:

🎙️

Voice-to-invoice

Create unlimited professional invoices by speaking your job details. AI trained on plumbing, electrical, HVAC, roofing, carpentry, and painting terminology.

📋

Voice quotes

Send a formal quote before you start. Customer accepts, requests changes, or declines via a private link — no app needed on their end.

🔄

Quote-to-invoice

One tap converts an accepted quote to an invoice. Every line item carries over — zero double entry.

👤

Customer management

Save customers on site. TraderInvoice remembers names, addresses, and emails for next time.

📄

Branded PDFs

Every invoice and quote is a clean PDF with your business name, logo (Pro), and contact details.

📊

Invoice dashboard

See paid, unpaid, and overdue at a glance. Know exactly what you are owed without opening a spreadsheet.

Whether you are a plumber, electrician, HVAC technician, or any other tradesperson, the workflow is the same: speak, review, send.

Send Your Invoice Before You Leave — Email, WhatsApp, or Download

Once your invoice is ready, you choose how your customer receives it — all from your phone, still on site:

  • Email — Send the PDF directly from TraderInvoice with a professional subject line. Your customer gets a proper invoice in their inbox while you are packing up.
  • WhatsApp — Share a link or message with the invoice details. Ideal when your customer prefers messaging over email.
  • Download PDF — Save locally or AirDrop to a customer on site if they want a copy immediately.

On the Starter and Pro plans you can also send payment reminders for overdue invoices — so chasing payment does not mean awkward phone calls, just a professional nudge from the app.

Quotes On Site — Protect Yourself Before the Work Starts

For jobs over a few hundred pounds, sending a formal quote before you start is one of the smartest habits you can build. TraderInvoice lets you create a voice quote the same way you create an invoice — speak the scope, review the PDF, send a link.

Your customer opens the link on their phone and can accept, request changes (with a comment), or decline. You get an instant notification. When the job is done, convert the accepted quote to an invoice in one tap.

Quote → work → invoice. One flow, zero re-typing.

This three-step pattern eliminates end-of-job price disputes and is available on the Starter plan (£29/month) and above.

After You Send — Track Everything From Your Dashboard

Sending on site is only half the picture. TraderInvoice keeps every invoice in a clear dashboard so you always know where you stand:

  • Mark invoices as sent or paid as money comes in.
  • See which quotes are still awaiting customer approval.
  • View total revenue and outstanding amounts at a glance.
  • Export records for your accountant — every invoice is stored as a digital record, supporting UK Making Tax Digital requirements.

UK tradespeople earning over £50,000 should read our MTD action plan for 2026 to understand how digital invoicing records fit into HMRC quarterly submissions.

Plans and Pricing — Start Free, Upgrade When You Are Ready

You do not need to commit to a subscription to invoice on site today. TraderInvoice is designed so you can prove the value on your very next job before spending anything.

PlanPriceOn-site features
Free£0 / month5 invoices/month · Voice-to-invoice · PDF · Customer management · No credit card
Starter£29 / monthUnlimited invoices · Voice quotes · Email & WhatsApp · Quote approval · Reminders
Pro£59 / monthEverything in Starter · Online card payments · Custom branding · Analytics

£29 per month on Starter is less than the profit on a single callout job for most UK tradespeople. If on-site invoicing saves you one evening a week and gets you paid three days sooner on every job, it pays for itself immediately.

Use promo code 04TI26 in Settings when you upgrade for your second month free. See full offer terms.

Ready to subscribe?

Start on the free plan today. When you are invoicing more than five jobs a month, upgrade to Starter or Pro in two clicks from your dashboard Settings page — secure checkout via Stripe, cancel any time.

Get Started in Two Minutes — Invoice On Site Today

  1. Go to traderinvoice.com/signup and create your free account.
  2. Add your business name, contact details, and trade type.
  3. On your next completed job, open TraderInvoice on your phone, tap the microphone, and describe the work.
  4. Review the invoice, hit send, and put your tools away knowing the invoice is already with your customer.

Over 500 tradespeople already invoice smarter with TraderInvoice. Your next job is the only proof you need.

Your next job. Your phone. One minute.

Send a professional invoice before you leave the site.

Create Your Free Account

Free forever plan · No credit card · Cancel paid plans any time

Frequently Asked Questions

Can I send a professional invoice from my phone while still on the customer's property?

Yes. With TraderInvoice you speak your job details into your phone, review the AI-generated invoice, and email or WhatsApp the PDF to your customer before you leave. The whole process typically takes under a minute and requires no laptop or app download.

Do I need to install an app to invoice from my phone on site?

No. TraderInvoice runs in your mobile browser on iPhone or Android. Open the site, log in, tap the microphone, and invoice. Nothing to download from the App Store or Google Play.

How does TraderInvoice turn my voice into an invoice?

You describe the job naturally — customer name, labour hours, materials, call-out fees, and any other charges. TraderInvoice's AI is trained on trade terminology and builds itemised line items, calculates tax where applicable, applies your branding, and produces a professional PDF ready to send.

Is TraderInvoice free to try on site?

Yes. The free plan includes five invoices per month with voice-to-invoice, PDF generation, and customer management. No credit card is required to sign up. Full-time tradespeople can upgrade to Starter for unlimited invoices at £29 per month.

Can I send quotes from my phone as well as invoices?

Yes, on Starter and Pro plans. You create a voice quote on site, send your customer a private link to accept or request changes, then convert the accepted quote to an invoice in one tap when the job is finished — with all line items carried over automatically.

What is the best way to get paid faster as a tradesperson?

Send your invoice while you are still on site or in the van immediately after the job. Customers who receive a professional invoice the same day pay significantly faster than those invoiced days later. Pair same-day invoicing with clear payment terms and polite reminders for overdue amounts.