Professional & personal services
Free Consulting Invoice Template
Free consulting invoice template with retainer, hourly and milestone lines. Add your logo, edit the rates and download a polished PDF in under a minute.
Free · No signup · Editable · PDF in under a minute
Consulting revenue rarely arrives in one shape. A discovery engagement bills hourly against a signed scope, a long-running advisory relationship bills as a flat monthly retainer drawn down in hours, and a fixed-fee transformation project bills against milestones tied to deliverables rather than time. This template carries all three so you can mix them on one invoice instead of rebuilding your line items every month. List the retainer first, then any hours billed above the retainer ceiling at your overage rate, then pass-through costs such as travel or licensed research. Consultants are almost always paid by an accounts-payable team rather than by the person who hired them, so include the purchase order or engagement code your client’s finance system expects — an invoice missing it sits in a queue until someone chases it. Net 30 is the default here because it matches most corporate AP cycles; shorten it to Net 15 for smaller clients who pay by card or transfer.
Invoice
Rivera Studio
INV-0042
Jul 1, 2026
Bill To
Northwind Coffee Co.
402 Bleecker Street
New York, NY 10014
- Number
- INV-0042
- Issue Date
- Jul 1, 2026
- Due Date
- Jul 31, 2026
| Description | Qty | Unit Price | Amount |
|---|---|---|---|
| Monthly advisory retainer — 20 hours included | 1 month | $6,500.00 | $6,500.00 |
| Strategy advisory — senior consultant | 24 hour | $275.00 | $6,600.00 |
| Discovery workshop facilitation, on site | 2 day | $2,400.00 | $4,800.00 |
| Findings report and executive readout | 1 project | $1,850.00 | $1,850.00 |
- Subtotal
- $19,750.00
The template opens with these lines already filled in. Change any of them — they are a starting point, not a price list.
What a consultant invoice usually contains
These are the lines this template starts with, at illustrative US rates for 2026. Every description, quantity, unit and rate is editable.
| Description | Qty | Unit Price | Amount |
|---|---|---|---|
| Monthly advisory retainer — 20 hours included | 1 month | $6,500.00 | $6,500.00 |
| Strategy advisory — senior consultant | 24 hour | $275.00 | $6,600.00 |
| Discovery workshop facilitation, on site | 2 day | $2,400.00 | $4,800.00 |
| Findings report and executive readout | 1 project | $1,850.00 | $1,850.00 |
| Total | $19,750.00 | ||
- Default unit
- hour
- Payment terms
- Net 30
- Suggested layout
- modern
Terms this template starts with
Payment is due within 30 days of the invoice date. Work outside the agreed statement of work is quoted and approved in writing before it begins; approved change orders are billed at the prevailing hourly rate. Travel and third-party research are passed through at cost with receipts attached. Balances unpaid after 30 days may accrue interest at 1.5% per month where permitted by law.
- Your logo, accent colour and business details
- Any currency, with named tax rates per line
- Six layouts on A4 or US Letter
- Hosted payment link and read receipts with a free account
Consultant invoicing questions
- Should I invoice a consulting retainer before or after the work?
- Retainers are normally billed in advance. Issue the invoice at the start of the period it covers so the fee is paid before you reserve capacity for the client. Bill any overage hours in arrears on the following period’s invoice, itemized against the included allowance, so the client can see exactly which hours exceeded the retainer and why.
- How do I bill for scope creep without damaging the relationship?
- Never bury extra hours in a routine invoice. Raise a written change order as soon as the request lands, state the added hours and the cost, and get an approval by email. Then invoice the approved change order as its own line item referencing the approval date. Clients dispute surprises far more often than they dispute increases they agreed to.
- Do I have to charge sales tax on consulting services?
- It depends entirely on where you and your client are located. Most US states do not tax general professional consulting, but several tax specific categories of service, and VAT or GST rules outside the US work differently again. Check your state or national tax authority, or ask an accountant licensed in your jurisdiction, before adding a tax rate.
- What makes a corporate accounts-payable team pay faster?
- Include your legal entity name, tax ID, the client’s purchase order or engagement code, the billing period covered, a plain description of each deliverable or hour block, and your remittance details. Missing purchase order numbers cause more rejected invoices than any other single problem, so confirm the code before you send rather than after.