Acme Consulting LLC
Business Strategy & Management Advisory
Consultant
Jane Smith
Acme Consulting LLC
789 Consultant Row, Suite 400
New York, NY 10001
jane@acmeconsulting.com
+1 (212) 555-0100
789 Consultant Row, Suite 400
New York, NY 10001
jane@acmeconsulting.com
+1 (212) 555-0100
Bill To
TechCorp International
Attn: Accounts Payable
100 Business Park Drive
San Francisco, CA 94105
ap@techcorp.com
100 Business Park Drive
San Francisco, CA 94105
ap@techcorp.com
| Service / Phase | Hours | Rate/Hr | Amount |
|---|---|---|---|
|
Discovery & Stakeholder Interviews Phase 1: Assessment of current operations |
12 | $250 | $3,000.00 |
|
Strategic Analysis & Reporting Phase 2: Market analysis, SWOT, recommendations |
16 | $250 | $4,000.00 |
|
Executive Presentation Phase 3: Board presentation preparation and delivery |
8 | $250 | $2,000.00 |
|
Travel & Expenses 2 on-site visits, economy class |
1 | $680.00 | $680.00 |
Subtotal
$9,680.00
Tax (0%)
$0.00
Retainer Paid
−$2,000.00
Balance Due
$7,680.00
Payment Details
Wire Transfer:
Bank: Chase Bank
Account: Acme Consulting LLC
Account #: 000000000
Routing #: 021000021
SWIFT: CHASUS33
Bank: Chase Bank
Account: Acme Consulting LLC
Account #: 000000000
Routing #: 021000021
SWIFT: CHASUS33
Terms & Notes
Payment due within 30 days of invoice date.
Reference: Agreement #AGR-2026-007
Overdue invoices subject to 1.5%/month interest.
All amounts in USD.
Reference: Agreement #AGR-2026-007
Overdue invoices subject to 1.5%/month interest.
All amounts in USD.
Thank you for the opportunity to work with TechCorp International.
Consulting Invoice FAQ
How do I invoice for consulting fees?
List each consulting engagement or project phase as a line item. Include hours worked, your hourly rate, and the total per line. Specify your consulting agreement reference number, payment terms (e.g., Net 30), and your payment details (wire transfer or ACH).
Should I charge hourly or by project for consulting?
Hourly billing is transparent and fair for undefined-scope work. Project-based (flat fee) billing rewards efficiency and is preferred by many clients for defined deliverables. Many consultants charge hourly for discovery/analysis and a flat fee for implementation phases.
Do consulting invoices need to include a contract reference?
It's best practice to reference your consulting agreement number on the invoice. This protects both parties, makes your accounting clearer, and reduces payment disputes.
How do I handle retainers on an invoice?
Show the full project subtotal, then deduct the retainer as a separate line ("Retainer Paid: −$X,XXX") to arrive at the balance due. This gives clients a clear accounting of what was paid and what remains.