About the Invoice Maker app
How to write an invoice for consulting services
- Hours as the quantity, your rate as the price.
- A fixed fee as one line at quantity 1, apart from the hours.
- Expenses at cost, each on its own line, with the unit, like miles.
- The client’s billing email and purchase order (PO) number, if they have one.
- The due date and how to pay. Business clients often ask for net 30 terms.
How do I invoice for hourly work?
Round to the step you agreed, like quarter hours, and bill decimal hours:
| Minutes | Decimal hours |
|---|---|
| 6 | 0.1 |
| 15 | 0.25 |
| 20 | 0.33 |
| 30 | 0.5 |
| 40 | 0.67 |
| 45 | 0.75 |
So 6 hours 15 minutes is 6.25. At $150 an hour, that’s $937.50.
How do I bill a retainer?
On its own invoice, with the hours it covers. Invoice Maker has no deposit line.
