A freelancer should set a rate that covers non-billable time, send a clear invoice as soon as work is delivered and keep expense records from day one. Most freelancers need the invoice, receipt, estimate and expense report.
Documents freelancers use
- Estimate. Send it before you start. Give a price for the scope and say what extra work costs.
- Invoice. Send it on delivery, or at milestones for long projects. Put the due date and payment method where the client sees them first.
- Receipt. Send it after payment arrives, if the client asks for proof. It confirms the amount and date.
- Expense report. Use it to record software, equipment and travel. It helps at tax time and when you bill costs back to a client.
How billing usually works
| Model | Best for | Risk |
|---|---|---|
| Hourly | Unclear scope, ongoing support | Client may limit your hours |
| Project fee | Defined deliverables | Scope creep costs you |
| Retainer | Regular monthly work | Unused time needs a rule |
| Deposit plus balance | New clients, larger jobs | None if written down |
Rate matters more than format. Billable hours are only a part of your week. You also spend time on sales, admin and gaps between clients. Use the freelance rate calculator to include that time and your overhead.
Invoice fast. The longer you wait to invoice, the longer you wait to be paid. The guide on how to get paid faster lists practical steps.
Common invoicing mistakes
- Sending a text message with a number instead of an invoice.
- Using a rate based on a salary and ignoring unpaid time.
- No invoice number or due date.
- Forgetting to add tax when it applies to you.
- Starting work with no written scope. See estimate vs quote.
- Mixing business and personal expenses.
Useful calculators and guides
- Freelance rate calculator to set your rate.
- Billable hours calculator to total hours.
- Hourly invoice calculator to price a bill.
- Sales tax calculator to check tax on an invoice.
Guides: what to include on an invoice, pricing your services and invoice numbering.
Frequently asked questions
- How do I set my freelance rate?
- Start from the income you need, add taxes, overhead and unpaid time off, then divide by the hours you can truly bill. Many freelancers bill far fewer hours than they work. The freelance rate calculator does this math.
- What should a freelance invoice include?
- Include your name and contact details, the client's details, an invoice number, the date and due date, itemized work with rates, tax if it applies, the total and payment instructions.
- Do I need to charge sales tax or VAT?
- It depends on your country, your income and what you sell. Rules vary. Ask a local accountant or your tax authority. The invoice generator has a tax percent field for each line if tax applies.
- Should I ask for a deposit?
- Many freelancers do, especially with new clients or large projects. A common approach is a share upfront and the rest on delivery. State it in your quote and on the invoice.
- How do I track business expenses?
- Keep every receipt and log expenses by date and category. An expense report gives you a clean record. Keep business and personal spending in separate accounts.