Late payment fee automation

Purpose

1.1. Detect overdue invoices for aircraft rentals and automate the application and notification of late payment fees to clients.
1.2. Ensure consistent enforcement of payment policies, minimize revenue loss, accelerate accounts receivable processes, and improve cash flow in aviation rental businesses.
1.3. Automate multi-channel communication to clients regarding fees, update financial records, and log compliance events for audit trails.

Trigger Conditions

2.1. Invoice status changes to “overdue” in the accounting or rental management system.
2.2. Pre-defined payment due date is surpassed without recorded receipt.
2.3. Manual or automated flag from AR (accounts receivable) staff.
2.4. Scheduled cron job or real-time webhook detect lateness.

Platform Variants

3.1. QuickBooks Online
• API: Invoice endpoint, “status=overdue” webhook triggers fee calculation and posting.
3.2. Xero
• API: GET Invoices, PATCH with late fee line item when “DueDate < Today”.
3.3. Stripe
• Webhook: Invoice.payment_failed; REST: Add late fee via Invoice Item API.
3.4. FreshBooks
• Event: Invoice overdue notification triggers POST to late fee endpoint.
3.5. Zoho Books
• Automation: Workflow rule “Invoice Status=Overdue”; Add custom charge.
3.6. SAP Business One
• B1if Integration Framework: Event triggers Fee Addon/Journal Entry post.
3.7. Oracle NetSuite
• SuiteScript: Scheduled script finds overdue; Invoice Update API adds charge.
3.8. Salesforce
• Flow Builder: Invoice Custom Object “IsOverdue=True”; Trigger Fee Notification.
3.9. Microsoft Dynamics 365 Finance
• Power Automate: Detect overdue; Use API to amend invoice with fee.
3.10. Wave
• Zapier Integration: Trigger “invoice overdue” links to “Add Charge” action.
3.11. Sage Intacct
• Smart Events: Monitors status, posts late fee via API update.
3.12. PayPal
• Instant Payment Notification: Monitor overdue, create additional invoice.
3.13. Twilio SMS
• Feature: SMS API; Send template late fee alert to client mobile.
3.14. SendGrid
• Mail Send API: Send late fee email to billing contact.
3.15. Slack
• Incoming Webhook: Alert team channel on invoice lateness and fee applied.
3.16. Google Sheets
• Apps Script: Script checks “Due Date” column, flags and logs new charge.
3.17. Monday.com
• Automation: Status change “Past Due”; trigger item update and notify.
3.18. HubSpot
• Workflow: Deal “Closed – Past Due” → Email/send late fee task.
3.19. Mailchimp
• Automated Email Series: Trigger on overdue, issue Late Fee Notification.
3.20. DocuSign
• Template Automation: Automatically send late fee agreement for e-signature.

Benefits

4.1. Reduces manual tracking and billing errors for aircraft rental companies.
4.2. Accelerates AR processes, improves cash flow, and maintains professionalism.
4.3. Creates auditable logs, ensuring regulatory compliance in financial operations.
4.4. Enhances customer transparency by automating timely communications.
4.5. Frees staff time for higher-value work, minimizing operational friction.