Invoicing Getting Paid

What a proforma invoice is, how it differs from a commercial invoice and a standard invoice, when to use each, what they must include, and how deposits and VAT work.

A disputed invoice is not a late invoice. Here is the five-stage resolution process, the emails to send, when to issue a credit note, and where you stand legally in the UK, EU, US and Australia.

How much interest can you legally add to an overdue invoice? Statutory rates in the UK and EU, US state caps, worked examples, and a late fee clause you can copy.

Card, ACH, SEPA, wire, wallet or cheque? Compare real 2026 fees, settlement times and best use cases for each invoice payment method — plus how many options to offer and when a 2.9% fee is cheaper than waiting 30 days.

An accounts receivable aging report groups unpaid invoices by how overdue they are. Learn how to read the buckets, calculate the ratios that matter, and turn the report into a weekly collections routine that actually gets invoices paid.

The definitive 2026 guide to late payment statistics: how many invoices are paid late, how much it costs, why it happens, and what actually works to fix it.

DSO measures how fast you collect invoices. Learn the formula, real industry benchmarks, and a 7-step system to lower Days Sales Outstanding and free up cash.

A complete invoice numbering guide: what makes a good invoice number format, sequential vs. date-based vs. client-prefixed systems, legal rules, and how to fix duplicates without breaking your books.

Recurring invoice meaning, setup steps, best practices, and dunning tactics for predictable cash flow. Includes templates, frequency tips, and an FAQ.