Consultants
Free Consultant Invoice Template
A professional invoice for advisory sessions, strategy work, implementation, and retainers.
What this template includes
About the consultant invoice template
Consultants typically bill by the hour, by the day, by project, or on a monthly retainer. Because consulting is high-trust work, a polished invoice that clearly states the scope and period being billed reinforces your professionalism. This free consultant invoice template suits management, IT, marketing, financial, and independent advisory work.
What to put on a consultants invoice
- Your firm name and contact details
- Client name and the engagement or project reference
- The billing period or session dates being invoiced
- Line items by phase, day, hour, or retainer with rates
- Subtotal, tax if applicable, total due, and payment terms
Typical payment terms
Retainers are usually billed monthly in advance, while project and hourly work is billed in arrears at net 15 or net 30. Stating the engagement reference and billing period on every invoice avoids disputes and keeps multi-month engagements easy to reconcile.
Consultants invoice FAQs
How do consultants usually invoice clients?
Consultants invoice by hour, day, project milestone, or monthly retainer. Retainers are typically billed in advance; hourly and project work is billed after delivery on net 15 or net 30 terms. Each invoice should reference the engagement and the period covered.
What should a consultant invoice include?
Include your firm details, the client and engagement reference, the billing period, itemized work by phase or hours with rates, the subtotal, any tax, the total due, and payment terms. A short scope note per line item reduces back-and-forth.
How do I invoice for a monthly retainer?
Create a single line item for the retainer (e.g. 'Advisory retainer - June 2026'), bill it at the start of the period, and note any work outside the retainer as separate line items. Recurring invoices can automate this on a paid plan.