Consulting invoices get paid fast when they are boring: project reference, period, hours or deliverables, rate, total, how to pay. This template is deliberately plain so it passes through a client's accounts-payable process without questions.
Free, fillable, US Letter. No email, no sign-up. It supports hourly billing with a period, day rates, fixed-fee milestones and monthly retainers, plus a block for expenses billed at cost.
What the PDF looks like. The hints in the line table show the lines a consultant typically bills; type over them.
Big clients reject invoices missing a PO number or the approver's name. Both are in the header of this template.
“22 hours” is debated; “22 h — discovery workshops, stakeholder interviews, summary memo (log attached)” is approved.
Your terms, printed, beat their default. Net 15 with ACH details gets you paid in two to three weeks instead of six.
Lines a typical job produces. Labor and materials are separate, and anything already paid is a negative line so the total is the balance due.
| Description | Qty × rate | Amount |
|---|---|---|
| Strategy consulting — March (time log attached) | 22 h × $175.00 | $3,850.00 |
| Workshop day — 12 Mar, on site | 1 day | $1,600.00 |
| Monthly retainer — advisory calls, April | 1 | $1,200.00 |
| Travel — flight and hotel, 11–12 Mar (receipts) | 1 | $612.40 |
| Total due | $7,262.40 | |
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PO or contract number, the approver's name, the billing period, lines that match the proposal, your EIN, and payment instructions. Missing any one of these is the usual reason an invoice sits for a month.
One line per month, in advance, with the services covered in the description. Bill overages separately so the retainer line stays identical every month.
Yes, as separate lines at cost with receipts attached, unless the client asks for a separate expense invoice.
Fixed-fee milestones invoice better: no time log, no debate, and you can bill on acceptance. Use hourly for open-ended advisory work only.
Yes, if it is on the invoice and in the contract. 1–1.5% per month is standard; many consultants find that simply printing Net 15 in bold does most of the work.