UK Tradespeople Invoicing App · 2026
The UK tradespeople invoicing app that lives inside WhatsApp.
Built for plumbers, electricians, gas engineers, builders, decorators and other self-employed UK trades. Send a WhatsApp message, get a branded HMRC-compliant invoice with a Stripe payment link in 60 seconds. Free forever. 1% only when your customer pays, capped at £50 per invoice.
No card required · No subscription · Cancel anytime by typing CANCEL in WhatsApp
Choosing an invoicing app as a self-employed UK tradesperson usually means picking between accounting platforms that weren't built for you (QuickBooks, Xero), job management suites that charge a subscription whether you invoice or not (Tradify, Fergus, Jobber), or generic invoicing tools that don't understand CIS, reverse-charge VAT, Gas Safe display rules, or the staged-payment quote-with-retention pattern that actually dominates UK construction invoicing.
Wedge is the UK tradespeople invoicing app built for the way you actually work — from a van, between jobs, on WhatsApp, with HMRC and trade compliance baked in by default. No app to install. No laptop required. No monthly fee. Just send a message describing the job and get a professional invoice back in 60 seconds.
Why Wedge is the right invoicing app for UK tradespeople
Six things every UK trade-focused invoicing app should do — and what most don't.
Invoice from WhatsApp, not a laptop
Most UK tradespeople invoice from the van — or never invoice at all because it means a Sunday-night laptop session. Wedge runs entirely inside WhatsApp. Send a message describing the job, get back a branded PDF with a Stripe payment link in under 60 seconds. No app to download, no login, no dashboard to learn.
Trade-specific by default
Gas Safe, NICEIC, NAPIT, ELECSA, ECA, SELECT and Part P registration numbers print automatically on every invoice and certificate once you set yours at sign-up. CIS deduction is calculated on labour only — never materials. Reverse-charge VAT is generated with the correct wording for B2B construction subcontracting. Built for how UK tradespeople actually work.
Free forever, 1% only when paid
No subscription, no monthly fee, no document cap, no 14-day trial that auto-charges. Wedge charges 1% per paid invoice, capped at £50 — so a £20,000 staged extension invoice pays £50 in fees, not £200. If a customer never pays, we never charge you. The fairest pricing in the UK tradespeople invoicing app market.
HMRC and MTD-ready records
Every invoice, expense, mileage entry and payment is stored as a digital record from the moment it's created. From April 2026, MTD for Income Tax applies to most self-employed UK tradespeople — Wedge produces clean CSV exports ready for FreeAgent, Xero, QuickBooks, or your accountant. Quarterly submission no longer needs end-of-year spreadsheet reconstruction.
Stripe Connect, your own payouts
Payments land directly in your bank account via Stripe Connect — Wedge never holds your money, never wires it on a delay. Bank transfers are free for your customers (sort code and account number print on every invoice automatically). Pay by Card is 1% Wedge fee + Stripe's standard processing. Pay by Bank is 0.5% Wedge — half the card fee, money in minutes, no chargebacks ever.
ICO registered, UK GDPR compliant
Wedge AI Ltd is a UK limited company on the ICO public register, reference ZC143076. Data is encrypted in transit (TLS 1.3) and at rest (AES-256), held in UK and EU data centres. One-click data export, soft delete with 30-day recovery, marketing consent independently revocable. Built to meet UK GDPR by default, not as an afterthought.
How the WhatsApp invoicing flow works
Three steps. Sixty seconds. Free forever.
- 1
Message Wedge in plain English
After a job, open WhatsApp and message Wedge: "Invoice Sarah Patel £180 for EICR plus £450 for remedial works at 14 Elm Road." No menus to navigate, no form to fill — just describe what you did, who for, and how much.
- 2
Wedge generates the invoice
Our AI parses the message, breaks out labour and materials, applies CIS or VAT if relevant, prints your qualifications (Gas Safe / NICEIC / Part P / SELECT) in the footer, and generates a branded PDF — usually in under 30 seconds. You see a preview before it sends.
- 3
Customer pays, money lands in your bank
The invoice goes to your customer on WhatsApp with a Stripe payment link and your bank details. Card payments confirm in seconds; Pay by Bank settles in minutes; bank transfers settle next business day. Payments land directly in your account via Stripe Connect — Wedge keeps 1% only when you get paid, capped at £50.
Invoicing app pages by UK trade
Each page has trade-specific FAQs, qualification badges, scenario walkthroughs, and city-level coverage. Pick your trade to see how Wedge fits.
UK tradespeople invoicing app — coverage by city
Wedge isn't tied to a city or postcode — it works anywhere in the UK from one WhatsApp number. These pages cover local market context for each major UK city: average day rates, CIS prevalence, specialist trade demand.
Plus Bristol, Liverpool, Newcastle, Sheffield, Peterborough, Leicester, Nottingham — covered on every trade page's “by city” section.
Wedge vs QuickBooks / Xero / Tradify — what UK trades actually need
The honest version. Full comparisons at /vs/quickbooks, /vs/xero, and /vs/tradify.
| Capability | Wedge | QuickBooks / Xero | Tradify |
|---|---|---|---|
| WhatsApp-native invoicing | ✓ | — | — |
| No subscription required | ✓ | — | — |
| 1% only when customer pays (capped £50) | ✓ | — | — |
| CIS deduction (labour only) auto-calculated | ✓ | ✓ | ✓ |
| Gas Safe / NICEIC numbers on every invoice | ✓ | — | ✓ |
| Reverse-charge VAT auto-formatted | ✓ | ✓ | — |
| Staged-payment quotes with retention | ✓ | — | ✓ |
| Built for UK only (not US/AU adapted) | ✓ | — | — |
Pricing — the simplest in the UK invoicing app market
One number to remember: 1% per paid invoice, capped at £50. No subscription. No document cap. No card required to start.
- ✓ Unlimited invoices, quotes, expenses, mileage entries
- ✓ Branded PDFs with your logo and trade qualifications
- ✓ Stripe Connect — money lands in your bank directly
- ✓ CIS, VAT, reverse-charge VAT all calculated automatically
- ✓ Automatic payment reminders for late payers
- ✓ Browser dashboard at /dashboard for record-keeping
- ✓ MTD-ready CSV exports for your accountant
How we earn: 1% of each paid invoice, capped at £50. On a £350 invoice paid by card, Wedge takes £3.50. On a £20,000 staged invoice, Wedge takes £50. If a customer never pays, we never charge you. Bank transfers using the bank details on your invoice are always free.
Resources for UK tradespeople
Free guides, calculators, and templates — no email signup required.
Frequently asked — UK tradespeople invoicing app
- What's the best invoicing app for UK tradespeople in 2026?
- Wedge is the only UK tradespeople invoicing app that runs inside WhatsApp — no app download, no laptop, no monthly subscription. Send a plain-English WhatsApp message describing the job and get back an HMRC-compliant PDF invoice with a Stripe payment link in under 60 seconds. CIS deduction, reverse-charge VAT, Gas Safe / NICEIC / Part P qualification display, and staged-payment quotes are built in. Free forever; we charge 1% only when your customer pays, capped at £50 per invoice. No subscription, no document cap.
- Is there a free invoicing app for UK tradespeople?
- Yes. Wedge is free to start and free to use — no subscription, no monthly fee, no trial that auto-charges. We charge a flat 1% per paid invoice (capped at £50) when your customer pays by card or Pay by Bank. If a customer never pays, we never charge you. Bank transfer payments using the bank details on your invoice are always free.
- Which trades does Wedge work for?
- Wedge is built for self-employed UK tradespeople across plumbing, electrical, gas engineering, building, decorating, joinery, tiling, roofing, landscaping, handyman work, and other small-business service trades including driving instructors. Trade-specific landing pages with FAQs, scenario walkthroughs, and qualification badges are live for plumbers, electricians, gas engineers, builders, decorators, and driving instructors.
- Does the app handle CIS deductions?
- Yes. Mention you're subcontracting under CIS in your WhatsApp message and Wedge calculates the 20% deduction on the labour element only — never materials. The invoice shows gross, deduction, and net payable clearly. For VAT-registered contractors invoicing other VAT-registered firms (very common on UK construction projects), reverse-charge VAT is generated with the correct wording automatically.
- Is Wedge HMRC-compliant and MTD-ready?
- Yes — every Wedge invoice meets HMRC's requirements (sequential numbering, VAT breakdown if you're registered, supplier and customer details, dates, payment terms). Every invoice, expense, and mileage entry is stored as a digital record from the moment it's created. That satisfies the digital record-keeping side of MTD for Income Tax (applies to most sole-trader tradespeople from April 2026). Quarterly submission flows through FreeAgent, Xero, QuickBooks, or any HMRC-recognised filing tool using Wedge's CSV exports.
- Do I need to install an app?
- No. Wedge runs entirely inside WhatsApp — no app to download, no separate login, no second phone number. Send messages to the Wedge WhatsApp number and you get invoices, quotes, and payment confirmations back as PDFs in the same conversation. A browser dashboard is available at /dashboard if you want to manage records on a laptop, but you never have to use it.
- How does Wedge compare to QuickBooks, Xero, or Tradify for UK tradespeople?
- QuickBooks (£8-£75/mo) and Xero (£16-£47/mo) are full accounting platforms — they handle invoicing as one feature among many, with monthly subscriptions that charge whether you invoice or not. Tradify (£34/mo) is job-management software with invoicing bundled in. Wedge is a focused invoicing-and-payments tool built around WhatsApp with no monthly fee — we charge 1% per paid invoice capped at £50. We win on speed, pricing, and trade-specific compliance; the larger platforms win on bank-feed reconciliation, payroll, and accountant integrations. See our full comparisons at /vs/quickbooks, /vs/xero, and /vs/tradify.
- How quickly can I send my first invoice as a UK tradesperson?
- Under three minutes from sign-up to first invoice sent. Sign up at /sign-up with your business name, mobile number, and trade qualification details (Gas Safe / NICEIC / Part P / SELECT registration number). Wedge sends a WhatsApp message to confirm your number, then you can immediately send your first invoice — message Wedge in plain English ("Invoice Dave Smith £350 for emergency boiler call-out, parts and labour") and the PDF arrives in your customer's WhatsApp in 60 seconds.
- What's the catch?
- None. Wedge is a single-purpose tool: WhatsApp invoicing for UK tradespeople with a 1% (capped £50) fee on paid invoices. We don't offer bank-feed reconciliation, payroll, or a full general ledger — those are deliberately out of scope. If you need full accounting software, use QuickBooks or Xero alongside Wedge (we export clean CSVs). If you need WhatsApp invoicing without subscription overhead, Wedge is the most honest pricing in the market.
Try the UK tradespeople invoicing app that lives in WhatsApp
Free to start. 1% only when your customer pays — capped at £50 per invoice. No subscription, no card required, no laptop needed.
Wedge AI Ltd · ICO Registered ZC143076 · Powered by Stripe · WhatsApp Business API