Free Consultant & Advisory Invoice Generator
Generate executive-ready advisory invoices with hourly consulting, project milestones, and expense pass-throughs. Instant vector PDF.
Clients can scan the QR code with their mobile phone camera or click the payment link to pay immediately with Apple Pay, Google Pay, or Credit Card.
INVOICE
Ref: #INV-CONS-001
Apex Strategic Advisory Partners LLC
finance@apexadvisory.co
(415) 555-4920
100 Montgomery St, Suite 1800, San Francisco, CA 94104
EIN: 91-4567890
Horizon Venture Holdings
ap@horizonholdings.vc
2400 Sand Hill Rd, Menlo Park, CA 94025
2026-10-29
2026-11-12
| Description | Qty | Unit Rate | Amount |
|---|---|---|---|
| Executive Strategic Advisory Retainer - October 2026 (Bi-weekly board sessions) | 1 | $5000.00 | $5000.00 |
| Technical Architecture & Due Diligence Review (20 hours @ $250/hr) | 20 | $250.00 | $5000.00 |
| Market Research Dataset & Industry Benchmark Report (Pass-through cost) | 1 | $450.00 | $450.00 |
Chase Business Wire: Routing #12100024, Acct #987654321
2026 US Management & Strategy Consulting Rates
Aggregated trade data for itemized contractor billing.
| Service / Work Category | Typical Rate | Billing Practice |
|---|---|---|
| Independent Strategy Consultant | $175 – $350 / hr | Former MBB (McKinsey/Bain/BCG) partners command $400-$750/hr |
| Monthly Advisory Retainer | $5,000 – $15,000 / mo | Covers bi-weekly executive workshops and async Slack access |
| Go-To-Market / Due Diligence Audit | $8,000 – $25,000 | Comprehensive 2-4 week diagnostic report and executive presentation |
| Fractional Executive (CFO / CMO) | $7,000 – $18,000 / mo | 1-2 days per week dedicated fractional leadership |
Field-Tested Invoicing Clauses
Click any clause to append directly into your invoice terms.
“Net 30 days payment terms. 1.5% monthly late fee assessed on overdue balances.”
“Work executed under mutual Non-Disclosure Agreement (NDA). All strategic deliverables property of client.”
“Pre-approved travel, lodging, and specialized datasets billed as pass-through items at direct cost.”
Consulting Invoicing & Retainer Best Practices
Tie Hours to Tangible Deliverables
Rather than vague 'strategy consulting', reference specific milestones (e.g. 'Q4 GTM Roadmap & Tech Stack Audit').
Separate Reimbursable Expenses
Bill pre-approved travel or software subscriptions as separate zero-markup line items.
Require Purchase Order (PO) Numbers
Enterprise accounts payable departments require a valid PO number to process payment without delays.
Frequently Asked Questions
How to bill recurring advisory retainers?
Bill retainers at the start of each month (Net 15 terms). State included hours and specify out-of-scope hourly overages.
Are consulting services subject to sales tax?
Consulting is considered a professional service and is exempt from sales tax across all 50 US states.
How to handle travel and meal expenses?
Itemize expenses at actual cost with copies of receipts attached, or bill standard federal GSA per diem rates.
What is standard for corporate payment terms?
Enterprise clients typically mandate Net 30 or Net 45. Solo consultants can offer 2% discount for payment within 10 days (2/10 Net 30).