The work is done, the customer is happy, and then the hard part starts: writing the invoice at 9pm, waiting for a bank transfer, and sending that awkward "just checking you got my invoice" text three weeks later.
What you get
- Create itemised VAT invoices in minutes — or convert an accepted quote in one tap
- Take card payments online with a Stripe payment link on the invoice
- Automatic overdue reminder emails to the customer once the due date passes — pausable per invoice
- Record part-payments and see the outstanding balance at a glance
- Sync invoices to QuickBooks or Xero, with payment status checked back
- Branded PDF download and email sending built in
How it works
Raise it in minutes
From a job, a quote, or from scratch — line items, VAT and due date. Email it or send the link by SMS.
Give them a card button
Connect Stripe once and every invoice can carry a secure pay-online link. No card machine, no reading card numbers over the phone.
Let CertBox do the chasing
When an invoice goes past its due date, CertBox emails the customer a reminder automatically. Replies come to you.
Common questions
What does taking card payments cost?
CertBox doesn’t add a markup — you connect your own Stripe account and pay Stripe’s standard processing fees.
Does it work with my accountant’s software?
Invoices sync to QuickBooks and Xero, and CertBox can check whether a synced invoice has been paid there.
Can I stop reminders for one slow-paying customer I’m handling personally?
Yes — every invoice has a pause switch for its automatic reminders, and there’s a global toggle in settings.
Works with
Build professional quotes on your phone, email them with one tap, and let CertBox chase the silence for you.
Photograph receipts, categorise spending, and hand your accountant a clean year.
Track subcontractor verification status and let CertBox work out the labour split, deduction and net payment.