The Ledger Invoice Checklist

📋 Basic Invoice Information

Invoice number is unique and sequential Use a consistent format: INV-2026-001. Never reuse numbers — this causes accounting nightmares.
Invoice date is correct Use the date services were completed or delivered, not today's date if different.
Due date is explicit Write "Due: April 22, 2026" — not "Net 14." Ambiguity delays payment.
PO number or project reference included (if required) Many enterprise clients won't process invoices without a matching PO number.

🏢 Your Business Details

Your full legal name or business name Use the exact name on your bank account to avoid payment mismatches.
Your business address Required for tax purposes in most jurisdictions.
Your contact email and phone Make it easy for clients to reach you with payment questions.
Tax ID / VAT / EIN (if applicable) Required in many countries. Missing this can void the invoice legally.

🧑‍💼 Client Details

Client's full legal company name Not the brand name — the registered entity name (e.g., "Acme Corp LLC" not "Acme").
Billing contact name and email Send to accounts payable, not your day-to-day contact. They often don't forward invoices.
Client billing address Required for tax compliance, especially for cross-border work.

💡 Pro Tip

Ask your client for their accounts payable email before the project starts. Chasing it down after delivery adds 5–7 days to your payment timeline.

📦 Line Items & Pricing

Each line item clearly describes the work Bad: "Services rendered." Good: "Website copywriting — 5 pages (March 2026)"
Quantity, unit, and rate are all specified Format: 10 hrs × $150/hr = $1,500. Transparency builds trust and reduces disputes.
Subtotal, tax, and total are clearly separated Show the math. Never make the client guess what tax rate you applied.
Currency is explicit Always write USD, GBP, EUR — not just "$". Especially critical for international clients.
Discounts or adjustments are itemized Don't just knock off the total. Show the original price and the discount line.

💳 Payment Terms & Methods

Accepted payment methods listed Bank transfer, PayPal, Stripe, check — be specific. Fewer questions = faster payment.
Bank/routing details are correct (if wire transfer) Double-check every digit. Wire transfers to wrong accounts are extremely hard to reverse.
Late payment fee policy is stated Example: "1.5% per month on overdue balances after 30 days." Reduces late payments by 22%.
Early payment incentive included (optional) "2% discount if paid within 7 days" can dramatically accelerate cash flow.

⚠️ Never send banking details in plain text email. Use a secure link or call to confirm wiring instructions. Invoice fraud (man-in-the-middle) targets freelancers specifically.

✅ Final Checks Before Sending

All math double-checked (especially if done manually) A miscalculation on your invoice damages your credibility — and your wallet.
Invoice is saved as PDF (not just a Word doc) PDFs can't be accidentally edited. Always send PDF, keep the source file for records.
Invoice matches the agreed scope/contract If scope changed mid-project, flag it in a note on the invoice. Surprises cause disputes.
Subject line of your email is professional Use: "Invoice #INV-2026-041 — [Project Name] — Due April 22." Don't write "Here's my invoice."
You've set a reminder to follow up Schedule a calendar reminder 3 days before the due date. Never chase, just remind.

The Ledger Invoice Checklist

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