Course 8: Advanced Finance & Accounting
Lesson 3 of 12 11 min read

Invoicing and Accounts Receivable: Get Paid on Time

Completed work means nothing until you get paid.

Key Takeaway

The best invoicing system is simple, immediate, and automated. Send invoices the moment work is done. Use clear payment terms. Follow up systematically on late payments. The longer an invoice ages, the less likely it gets paid.

The Invoicing Golden Rules

  1. Invoice immediately: Same day as service, ideally on-site
  2. Make payment easy: Link to pay online, multiple options
  3. Be clear: What was done, what's owed, when it's due
  4. Follow up: Systematic reminders, not random

What Every Invoice Needs

PROFESSIONAL INVOICE: Your business name and logo Your contact info Invoice number (INV-001, INV-002...) Invoice date Due date Client name and address Vehicle info (year, make, model) Service description: - Full Detail - 2022 BMW X5 - Ceramic Coating - Gtechniq Crystal Serum Amount: $1,450.00 Payment terms: Due upon receipt Payment methods accepted: □ Credit/Debit Card (link to pay) □ Check payable to [Business Name] □ Venmo @BusinessHandle Thank you for your business!

Payment Terms

Residential Clients

Due upon receipt or Due on completion

For most residential work, payment at time of service is standard. No net-30 needed.

Commercial Accounts

Net 15: Payment due within 15 days Net 30: Payment due within 30 days (dealers, fleets) Consider: 2% discount if paid within 10 days (2/10 Net 30) Late fee: 1.5% per month after due date

Large Jobs ($1,000+)

Use deposit + balance structure:

  • 50% deposit to schedule
  • 50% balance on completion
  • Or: 50% deposit, 50% before vehicle leaves

Following Up on Late Payments

DAY 1: Invoice sent DAY 3: "Friendly reminder" if unpaid DAY 7: Second reminder DAY 14: Phone call + firm email DAY 21: Final notice, mention late fee DAY 30+: Collections consideration

Day 3 Reminder (Friendly)

"Hi [Name], just a quick reminder that invoice #[XXX] for $[amount] is due. You can pay easily using the link below. Let me know if you have any questions!"

Day 14 Reminder (Firm)

"Hi [Name], I wanted to follow up on invoice #[XXX] for $[amount], which is now [X] days past due. Please arrange payment at your earliest convenience. If there's an issue, let me know so we can work something out."

Day 21+ (Final Notice)

"Hi [Name], invoice #[XXX] for $[amount] is now significantly overdue. A late fee of [X%] has been applied per our terms. Please remit payment within 7 days to avoid further action. I'd prefer to resolve this directly — please reach out."

Preventing Late Payments

  • Collect at completion: For residential, best practice is payment before you leave
  • Card on file: Auto-charge after service
  • Deposits: Reduces balance owed, increases commitment
  • Clear terms upfront: State payment expectations before work begins

When to Write Off or Escalate

After 60-90 days of non-payment:

  • Small amounts ($100-200): Often not worth the time. Write off and don't serve again.
  • Medium amounts ($200-1,000): Small claims court is an option ($50-100 filing fee)
  • Large amounts ($1,000+): Consider collections agency (they take 25-50%)

The Cost of Slow Payments

$5,000 in outstanding invoices (aged 30 days) That's money you earned but can't use. If you need to pay: - Supplies: $500 - Insurance: $300 - Fuel: $400 You're short $1,200 until those invoices pay. With immediate payment culture: 95% of invoices paid same day AR balance: $500 average Never cash-strapped Collecting at completion solves cash flow problems before they start. Every day an invoice ages, the probability of payment drops. Day 1: 95% collected. Day 30: 85%. Day 90: 60%.

Common Mistakes

Waiting to invoice

→ Invoice immediately. Same day, same hour if possible. Delays reduce collection rates.

No follow-up system

→ Random follow-ups don't work. Systematic reminders (Day 3, 7, 14) get paid.

Giving net-30 to everyone

→ Net-30 is for commercial accounts with established relationships. Residential = due on receipt.

No deposits on large jobs

→ Deposits protect you and increase client commitment. Always for jobs over $500-1,000.

Avoiding confrontation on late payments

→ Polite but firm follow-up is professional. You did the work; you deserve payment.

Action Step

Review your current AR. How many invoices are outstanding? Set up automated reminders in your invoicing system for Day 3, 7, and 14.

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Pro Tip

For repeat commercial accounts, set up auto-invoicing weekly or monthly. Batch invoicing saves time and ensures nothing slips through.

Frequently Asked Questions

Should I charge late fees?

Yes, include them in your terms. Whether you enforce them depends on the relationship, but having the option matters.

What about clients who always pay late?

Move them to prepay or card-on-file. Chronic late payers don't deserve net terms.

How do I bring up payment?

'I'll send your invoice now. Do you want to pay by card or check?' Direct and professional.

Should I stop service for non-payment?

Yes. Don't do more work for someone who owes you money. Politely explain you need the balance cleared first.

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