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What is a proforma invoice?
A proforma invoice is a preliminary bill sent before work or delivery, showing expected charges. It isn't a demand for payment yet — and in Fee-Lion, your estimate plays exactly that role.
Billing Basics
Estimates
Invoices
What Is an Invoice Number?
An invoice number is a unique identifier on each invoice that keeps your records organized and helps clients reference payments.
Billing Basics
Getting Paid
Invoices
What is a late fee?
A late fee is an extra charge added to an invoice that isn't paid by its due date, usually a flat amount or a percentage. How freelancers use them.
Invoices
Late Fees
Payment Terms
What is a purchase order (PO)?
A purchase order is a document a client issues to authorize and budget for your work before you invoice. Here is how POs fit into freelance billing.
Getting Paid
Invoices
Purchase Orders
What Is Net 30 (and Net 15)?
Net 30 means payment is due 30 days after the invoice date; Net 15 means 15 days. A plain-language guide to common net terms and when to use each.
Cash Flow
Invoices
Payment Terms
Invoicing as a Voiceover Artist
Quote by the word, the spot, or usage, take a deposit before you record, and bill revisions cleanly so scope creep doesn't eat your rate.
Deposits
Invoices
Voiceover
Invoicing as a real estate agent
Bill referral fees, staging, and transaction-coordination work, and send a clean branded invoice clients can pay by card.
Branding
Invoices
Real Estate
Invoicing as a nutritionist
Sell consults and multi-session programs, bill the package with a deposit, and let clients approve and pay without an account.
Client Portal
Deposits
Invoices
Invoicing as a Landscaper
Quote the job, bill recurring maintenance monthly, and log materials and travel as expenses so you can see what each property really earns.
Expenses
Invoices
Recurring Billing
Invoice Ninja vs Fee-Lion
Both get invoices out the door. Here's how Fee-Lion's estimate-to-invoice flow, own-Stripe payouts, and command palette change the day-to-day.
Comparison
Invoices
Switching