A sales invoice is the bill you send a customer so they pay you. Send one whenever you've done work or sold something and want to get paid. This guide shows you how to create one in Mighty, check it, and send it.
It helps to have two things to hand:
Everything starts from Sales > Sales Invoices. This is where every invoice you've created lives, along with three totals at the top: your sales this financial year, what customers currently owe you, and anything past its due date.
When you save an invoice you have two choices, and it's worth knowing the difference:
Approving doesn't email anything by itself. Once approved, open the invoice and you can send it to your customer by email, or download it as a PDF to send however you like.
If your business is registered for VAT (the tax you add to your prices and pass on to HMRC, the UK tax authority), each invoice line has a VAT rate. Most things use the standard rate of 20%, and Mighty picks that for you. If you're not sure a different rate applies, the standard rate is usually the right choice — and Mighty works out the VAT amount for you either way. If you're not VAT registered, you won't see this field at all.
Your invoice list shows where each invoice is up to:
| Status | What it means |
|---|---|
| Draft | Not final yet — your customer hasn't seen it. |
| Outstanding | Approved and waiting to be paid. |
| Paid | The payment has arrived and been matched to this invoice. |
When your customer pays, match the payment to the invoice from your bank screen so Mighty knows it's been paid. The invoice then shows as Paid, and your "currently owed" total goes down.
Approve it, then open it from the list. From there you can email it to your customer or download a PDF. Adding an email address while you're creating the invoice doesn't send anything — sending is always a separate, deliberate step.
While an invoice is a draft you can change everything. After you approve it, open the invoice to see what can still be changed. If the invoice was wrong and your customer already has it, the usual fix is a credit note — a document that cancels out some or all of an invoice.
Invoices past their due date show in the Overdue invoices total at the top of your invoice list, so nothing slips by unnoticed. It's fine to send the invoice again as a reminder.