Plumbers Invoice Software UK: Bank-to-Bank Payments, No Card Fees
Invoicr is a free invoicing app built for UK plumbers and tradespeople that cuts payment processing costs by using bank-to-bank transfers instead of card processors. On a £500 invoice, you pay around £4 in fees instead of £12.50 with traditional card payment software.
Why Plumbers Need Different Invoice Software
Most UK invoicing software treats plumbers like retail businesses, funnelling payments through card processors and taking a percentage cut. Invoicr was built from the ground up for tradespeople. You invoice your customer, they pay you direct from their bank account using UK open banking, and the fee is flat and low. As of June 2026, tradespeople using Invoicr save hundreds per year on payment processing alone. The app runs on your phone, so you can invoice on-site, send it to your customer via WhatsApp (on Pro tier), and track payment status in real time.
Recurring Billing and Payment Reminders
If you run maintenance contracts or regular service visits, Invoicr Pro lets you set up payment reminders that go out automatically when invoices are due. You can send reminders via email or WhatsApp, and your customer gets one-tap access to their invoice portal. No more chasing late payers manually. The app tracks which invoices have been viewed and paid, so you know at a glance who owes you money. For plumbers managing multiple jobs or contracts, this saves hours each month.
Free Tier vs Pro and Business Plans
Invoicr's Free tier covers 5 invoices per month and 3 customers, so it's ideal if you're testing the app or just starting out. Pro (£9.99/month or £79.99/year) unlocks unlimited invoices, automated payment reminders, WhatsApp delivery, and quote templates. Business (£19.99/month or £179.99/year) adds VAT and CIS compliance reporting, up to 5 team seats so you can bring on an admin, and accountant export for your bookkeeper. Most UK plumbers find Pro a perfect fit.
How Bank-to-Bank Payments Work
When you send an invoice via Invoicr, your customer receives a secure link. They click it, authenticate with their bank, and the money moves from their account to yours in real time. You don't hold payment data, you don't wait for card network clearance, and you don't pay a percentage cut to a card processor. It's faster, cheaper, and more secure. The app encrypts all transactions and is built for UK compliance from day one.
Built for UK Tradespeople
Invoicr is iOS and Android native and focuses exclusively on the UK market. It handles VAT correctly, supports CIS (Construction Industry Scheme) reporting if you're a subcontractor, and exports data in a format your accountant will understand. Whether you're a plumber, electrician, builder, gardener, handyman, or decorator, you get the same flat-fee payment model and mobile-first design.
Start invoicing for free, no card fees, in under two minutes.
Frequently asked questions
What is the cheapest way to accept payments as a UK plumber?
Bank-to-bank transfers via Invoicr. You pay a flat fee (around £4 on a £500 invoice) instead of 2.5% plus per-transaction fees with card processors. That's £8.50 saved on every £500 job.
Can Invoicr send automatic payment reminders?
Yes, on Pro and Business plans. Reminders go via email or WhatsApp, and your customer can pay directly from the reminder without leaving the app.
Do I need accounting software as well as Invoicr?
Not necessarily. The Free and Pro tiers handle invoicing and payment tracking. Business tier exports data that syncs with accountancy software, so you can use Invoicr standalone if you prefer.
Is Invoicr free for the first month?
Invoicr is permanently free for up to 5 invoices and 3 customers per month. Pro and Business tiers are paid, but you can try Pro free and downgrade to Free anytime.
Can my plumbing team use Invoicr on different phones?
Yes. Business tier (£19.99/month) includes 5 team seats, so your team members can log in and create invoices from their own phones.
Does Invoicr work offline?
The app requires an internet connection to send and receive invoices, but you can draft invoices on your phone and send them when you have signal.