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.