guides

How to send an invoice

Best practices for delivering invoices so clients pay faster.

Sending an invoice is not just clicking send — timing, subject lines, and payment convenience all affect how fast you get paid.

The best invoices arrive when the value is fresh in the client's mind, include a one-click payment option, and use a professional template.

Step by step

Review before sending

Double-check amounts, client name, and due date.

Write a clear subject line

Example: "Invoice #1042 from Acme Design — Due April 15"

Include a short message

Thank the client and note how to pay or ask questions.

Attach or link payment

Use a secure payment link so clients pay immediately.

Set reminders

Enable automatic reminders before and after the due date.

Should I send PDF or a link?

Both. Email with PDF attached plus an online payment link covers all preferences.

When is the best time to send?

Right after deliverable acceptance or per your contract schedule — not Fridays before holidays.

Why teams choose InvoyFlow

Fast to start

Create a polished invoice in under two minutes — no accounting degree required.

Get paid online

Accept card and PayPal payments on every invoice with one-click setup.

Estimates & receipts

Win work with estimates, then convert to invoices and issue receipts automatically.

Fair pricing

Start free. Core is $8/mo, Unlimited is $15/mo — no surprise fees.