Why your electrician should stop using Stripe for invoices

The £12.50 problem nobody talks about

Card payments are convenient. They're also expensive. If you're a sole trader running a plumbing round or fixing boilers for commercial clients, you know the math. A standard card processor takes 2.5 per cent. On a £500 invoice, that's £12.50. On a £1,000 job, it's £25. Over a year, running a busy trade, you're handing over thousands in percentage cuts to companies that don't know your name.

Open banking changes that equation. It's not magic. It's just your client's bank talking directly to your bank, no middleman, no card network. The cost? Around 80 pence for that same £500 invoice. Not a percentage. A flat fee.

When we started Invoicr, this wasn't the obvious choice. Card processors are everywhere. Everyone knows Stripe, Square, PayPal. But we kept hearing the same frustration from tradespeople: they weren't running a coffee shop. They weren't selling to tourists. They were invoicing known clients for known work. Why should every payment feel like a retail transaction?

What open banking actually is (and isn't)

Open banking sits at the heart of UK financial regulation now. The idea is straightforward: customers have the right to share their banking data securely with services they trust. Your client doesn't hand over their card number or their password. They authenticate themselves through their own bank's app. They confirm the payment once. Done.

It's not a new fintech gimmick. It's built on the same security standard that banks use to talk to each other. Your client's bank verifies the payment details. It checks the account exists and is in the right name. Then it pulls the money directly from their account into yours.

This is why we chose it as our core payment method. Not because it's trendy. Because it solves the actual problem: a plumber or electrician needs to get paid reliably by established clients without losing a chunk to processing fees. Open banking does that.

How it works in practice, without the jargon

You create an invoice in Invoicr. It takes two minutes on your phone. You set the amount, add your client's name, hit send. Your client receives it via email or WhatsApp, depending on your plan.

They open the invoice. They see a button to 'Pay now'. One tap and they're taken to their own banking app. They see the payment details already populated, verify it's you they're paying, and authorize it from their account. Money arrives in your bank within seconds. Most of the time, instant.

No card number. No third-party dashboard to log into. No waiting three days for settlement. Your client uses the banking app they already use every day. You get the money straight away.

The security side matters too. Your client's bank holds the verification gate. You never see their login details. Payment data is encrypted and validated. If someone tries to send a dodgy invoice claiming to be you, the client's bank will flag it as suspicious. The human layer stays intact.

The numbers that changed our thinking

We spent six months watching how tradespeople actually invoice. A builder might send out five invoices a month, averaging £800 each. A decorator handles maybe eight smaller jobs, £300 to £600 each. A mechanic working mobile does ten invoices a month, mixed sizes.

With card processing at 2.5 per cent, that builder was losing £200 a month. Over a year, £2,400. The decorator, roughly £600 a year. The mechanic, £1,200 a year. Not catastrophic amounts in the grand scheme of running a business, but enough that they noticed. Enough that they resented it.

Open banking flips this. Same builder. Same invoices. Same £4,000 a month revenue. Payment costs drop to about £4 total. The decorator saves nearly £600 a year. The mechanic saves £1,100.

We don't market this as a killer feature because we think you'll switch apps over a few hundred quid. We market it because it's the right solution. A tradesperson should keep the money they earn. Card fees were designed for a different world. Retail checkouts. Subscription management. Tourist shops. Not for established client relationships where both sides know each other.

Why we went UK-only, and why it matters

Open banking in the UK is mature. The regulation is clear. The banking infrastructure is there. You can process a payment in seconds and see it in your account almost instantly.

We could have built for Europe, America, Australia. Some app studios do. But that meant watering down the solution. Open banking works differently in every region. Card processing stays universal but expensive. We'd have ended up as yet another Stripe alternative, slightly cheaper, slightly slower, still taking a percentage.

Instead, we built something purpose-built for UK sole traders and small trades. We integrated VAT reporting. We added CIS compliance for contractors. We made sure accountants could export cleanly. Our Pro and Business tiers reflect what UK freelancers actually need, not what a global platform assumes.

Open banking is the headline, but the whole product is built around one person: a plumber or electrician running from their phone, invoicing when the job's done, getting paid without friction.

The client side of this

I talk to users a lot. What surprised me most wasn't how many said the fee saving changed their life. What surprised me was how many said paying felt less dodgy.

One carpenter told me he'd been asking clients to bank transfer him manually before. No app, no invoice, just a text saying 'can you send £1,200 to this account'. It worked, sort of. But clients didn't have a record. He didn't have proof they'd paid. Nothing formal existed.

Invoicr gave him a middle ground. A real invoice his clients could file. A secure payment link they could click. No card processing. No fees. But proper, professional, documented.

That's what open banking enables. Payment that feels modern and secure without feeling extractive. Clients on modern banks see a familiar, simple flow. You get the money fast. Everything's recorded.