How to Send an Invoice and Get Paid Faster (2026 Guide)
By Farasat Abbas Naqvi · Published June 20, 2026
Sending an invoice is the moment that decides when (and whether) you get paid. This guide covers the full workflow: prepare a clean PDF, write an email the client will actually open, attach a payment link, and follow up without sounding pushy.
Step 1: Prepare the invoice as a PDF
Always send invoices as a PDF — never a Word or Excel file. PDFs preserve layout, look professional, and cannot be edited by mistake. Use the free invoice generator to produce a branded PDF in under two minutes.
Step 2: Use a clear email subject line
"Invoice INV-0142 from [Your Business] — Due [Date]" beats "Invoice attached". Including the invoice number and due date in the subject line gets your email past the inbox triage and into the AP queue.
Step 3: Copy this email template
Keep the body short. Three sentences is enough:
Hi [First Name],
Please find attached Invoice INV-0142 for [project] — total $1,250, due [date].
You can pay by bank transfer (details on the invoice) or with this link: [payment link]. Thanks!
— [Your name]
Step 4: Send to the right person
For anything other than a small business, send the invoice to accounts payable (often ap@, billing@, or invoices@) and cc your main contact. The contact will not pay the invoice — AP will.
Step 5: Add a one-click payment link
Invoices with a payment link are paid 2–3x faster than invoices with bank details alone. Stripe, PayPal, and Wise all give you a hosted payment link you can paste into the email or embed as a QR code on the PDF.
Step 6: Follow up on the right cadence
- Day 0 (send) — invoice + email.
- Day 3 before due — friendly "just a heads-up" reminder.
- Day 1 after due — polite "did this slip through?" check-in.
- Day 7 overdue — firmer reminder citing payment terms.
- Day 30 overdue — apply late fee per contract, escalate.
How to send an invoice for freelance work
For freelance work, send the invoice the same day you deliver — and attach the deliverable in the same email. Use Net 14 by default; freelance clients pay faster on shorter terms.
How to send an invoice on your phone
Open the guest invoice builder on your phone, fill it in, download the PDF, and attach it to an email — the whole flow takes about 3 minutes.
Ready to send?
Create your invoice in the free builder and email it in the next 5 minutes.
Frequently Asked Questions
What format should I send an invoice in?
Always PDF. PDFs preserve formatting, look professional, and cannot be edited accidentally by the recipient.
Should I send invoices by email or post?
Email for almost every modern client. Use post only when explicitly required (some government and legal accounts).
How often should I follow up on an unpaid invoice?
Once before the due date, again 1 day after, then once a week until paid. Keep messages short and professional.
Can I send an invoice from my phone?
Yes — use the free invoice generator on mobile to create a PDF and email it directly.
Who should the invoice email go to?
Accounts payable, with your main contact on cc. AP pays the bills; your contact approves them.