
Invoicing
Create, send, and track professional invoices with online payment collection and full payment history.
Key Features
- Invoice Creation: Build invoices with line items, quantities, rates, and tax rates that calculate totals automatically
- Online Payments: Accept credit card payments via Stripe with a secure checkout link sent directly in your invoice email
- Multiple Payment Methods: Enable Stripe, ACH, Zelle, check, or wire transfer on any invoice
- Public Invoice Link: Every invoice gets a secure shareable link (inv.air4.link) customers can open to view and pay
- Viewed Tracking: Know when a client opens their invoice — the status updates to Viewed automatically
- Payment History: View all payments per invoice, edit manual entries, and delete records as needed
- Payment Tracking: Record manual payments and track partial payments — the balance updates automatically
- Refunds: Issue full or partial Stripe refunds directly from the invoice, with reason tracking
- Status Management: Invoices move through Draft → Sent → Viewed → Partially Paid → Paid automatically, or update manually
- Duplicate Invoices: Copy any invoice instantly to create a similar one without re-entering details
- PDF Download: Download any invoice as a PDF for your records or offline sharing
- Recurring Invoices: Set up invoices to repeat on a schedule and manage them from the recurring view
- Products Library: Save line items as reusable products to speed up invoice creation
- Currency Support: Issue invoices in USD, EUR, GBP, CAD, or AUD
- Dashboard Stats: See total revenue, outstanding balance, overdue count, and paid invoice count at a glance
How to Use
Create an Invoice
- Click Create Invoice from the Invoicing page
- Select a client and set the issue and due dates
- Add line items — enter a description, quantity, and rate; the amount calculates automatically
- Set a tax rate if applicable; the subtotal, tax, and total update in real time
- Choose which payment methods to offer (Stripe, ACH, Zelle, check, wire)
- Click Save to save as a draft
Send an Invoice
- Open an invoice and click Send
- Search for recipients by name or email — contacts auto-suggest as you type (To, CC, BCC)
- Choose an email template: Standard Invoice, Payment Reminder, Overdue Notice, or Custom Message
- Optionally edit the subject and add a personal message
- Click Send Invoice — the customer receives an email with a "View & Pay Invoice" button
Record a Payment
- Click Record Payment on any sent invoice
- Enter the amount, payment method, and date
- Save — the balance due updates and the status changes to Paid when fully settled
View Payment History & Refunds
- Click View Payments on any invoice to see all recorded payments
- Edit manual payment details or delete entries as needed
- For Stripe payments, click Refund to issue a full or partial refund and select a reason
Copy the Public Link
- Click Copy Link on any invoice
- Share the link with your client — they can view the invoice and pay online without logging in
Tips
- Set invoices to Draft while building them; clients cannot see them until sent
- Use Duplicate from the row menu to clone an existing invoice and save re-entry time
- The Overdue stat card highlights when invoices have passed their due date unpaid
- Select multiple invoices to batch delete or mark as sent at once
- Use Mark as Sent or Mark as Draft from the row actions to manually adjust status
- Filter by status or year to quickly find what you need in large lists
- Partial payments are supported — record multiple payments and the balance tracks automatically
- Only draft or cancelled invoices can be permanently deleted