Topic hub
Invoicing & billing.
Learn the fundamentals of invoicing — from writing your first invoice to retainers, reminders, and getting paid on time.
Getting started with invoicing
How to write an invoiceWhat to include so clients pay without questions.Read ->How to invoice for consulting servicesThe AP-ready format, terms, and follow-up cadence.Read ->What is an invoice number?Formats, sequencing, and why duplicates stall payment.Read ->Invoice vs receiptThe request before payment, the proof after.Read ->Net 30 payment termsWhat net 30 means and when shorter terms win.Read ->Free invoice templateCSV templates that open in Excel and Google Sheets.Read ->Free invoice generatorBuild a print-ready invoice in the browser.Read ->Free estimate templateA clean estimate with valid-until date, as CSV.Read ->
Getting paid on time
How to get paid fasterTerms, cadence, and the follow-up rhythm that works.Read ->Retainer fee explainedThe two retainer models and how to bill them automatically.Read ->Invoice email templatesWhat to write when you send, remind, and escalate.Read ->Late fee calculatorWork out a fair late fee in seconds.Read ->Payment reminder generatorReminder emails that get invoices paid.Read ->Payment reminder message examplesCopy-ready reminder wording for every stage.Read ->
Invoice software
Best invoice softwareThe shortlist for service businesses.Read ->Service business invoicing softwareWhen a simple invoice app is not enough.Read ->Invoicing and project management softwareThe client-work loop, billed on schedule.Read ->Quote, invoice & payment softwareOne flow from quote to paid.Read ->
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