The work is done, the client is happy, and the invoice is ready. Now comes the moment that determines your cash flow: hitting “Send.”
Sending an invoice by email is more than just an attachment; it is a critical touchpoint in your customer experience. If your email is vague, unprofessional, or—worse—missing a clear way to pay, you are creating a silent revenue leak.
Here is how to craft the perfect invoice email that stops the friction and gets your revenue into your bank account where it belongs.
The Golden Rules of Invoicing by Email
Before we get to the templates, remember these three high-performance rules:
- Use a Clear Subject Line: Include the invoice number and your business name. Your client’s inbox is crowded; make it easy for them to find your bill.
- Attach a PDF (Never a Word Doc): A PDF is professional, secure, and looks the same on every device.
- Provide a Frictionless Payment Link: This is the Doran Pay way. Don’t just tell them how much they owe; give them a direct link to pay instantly.
Example 1: The Standard Professional Email
Use this for regular clients or standard project milestones.
Subject: Invoice [Number] from [Your Company Name]
Body: Hi [Client Name],
I hope you’re having a great week!
Please find attached Invoice [Number] for [Project Name], totaling [Amount]. This invoice is due by [Date].
You can pay this invoice instantly via credit card or bank transfer here: [Link to your Doran Pay Checkout]
If you have any questions regarding the line items, please don’t hesitate to reach out. It’s been a pleasure working with you!
Best regards,
[Your Name]
Example 2: The “Friendly Reminder” (Past Due)
Use this when an invoice is 1-3 days late to nudge the client without burning the bridge.
Subject: Follow-up: Invoice [Number] from [Your Company Name]
Body: Hi [Client Name],
I’m checking in to ensure you received Invoice [Number] sent on [Original Date]. According to our records, the payment is currently slightly past due.
We know things get busy! You can quickly clear this balance using our secure payment link below:
[Link to your Doran Pay Checkout]
Please let me know if there is anything I can do to assist with the process.
Best,
[Your Name]
Example 3: The Short and Direct (For Repeat Clients)
Use this for clients you have a long-standing, high-trust relationship with.
Subject: New Invoice [Number] for [Month/Service]
Body: Hi [Client Name],
The latest invoice for [Service] is now ready.
Total Due: [Amount] Due Date: [Date]
Click here to pay: [Link to your Doran Pay Checkout]
The full itemized PDF is attached for your records. Thanks for your continued business!
Cheers,
[Your Name]
Why the “Link” is More Important Than the “Text”
At Doran Pay, we see it all the time: businesses write beautiful emails but fail at the last mile.
If you send an email but don’t include a direct, frictionless way to pay, you are asking your client to do extra work. They have to download the PDF, open their banking app, copy your details, and initiate a transfer.
Friction is the enemy of ROI. By including a high-performance payment link in every email, you ensure that “opening the email” leads directly to “completing the transaction.” Our infrastructure is built to work exactly the way it should—every time, on every device.
Conclusion: Stop Chasing, Start Converting
Your email is the bridge between your hard work and your payment. Don’t let a clunky process be the reason your revenue plateaus.
Ready to see how a frictionless payment experience can transform your business? Use these examples to stay professional, but visit doranpay.com to ensure your payments are high-converting and hassle-free.

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