19 Sending an Invoice via Email Sample Best Practices

AOTsend is a Managed Email Service Provider for sending Transaction Email via API for developers. 99% Delivery, 98% Inbox rate. $0.28 per 1000 emails. Start for free. Pay as you go. Check Top 10 Advantages of Managed Email API

Invoicing is a crucial part of any business transaction, and with the advent of technology, sending invoices via email has become commonplace. However, there are certain best practices to follow when emailing invoices to ensure clarity, professionalism, and efficiency. Here are 19 best practices for sending an invoice via email.

1. Clear Subject Line

Start with a clear and concise subject line that indicates the content of the email, such as "Invoice for [Service/Product] - [Invoice Number]". This helps the recipient understand the purpose of the email at a glance.

2. Professional Greeting

Always open with a professional greeting, addressing the recipient by name if possible. This personal touch adds a level of warmth and professionalism to your communication.

3. Invoice Attachment

Attach the invoice to the email in a commonly used and easily accessible format, such as PDF. Ensure the file name is descriptive and includes the invoice number for easy reference.

4. Invoice Details in the Body

Summarize the key details of the invoice in the email body, including the invoice number, date, and the total amount due. This provides a quick overview for the recipient.

5. Payment Details

Include clear payment instructions, including payment methods accepted, payment deadline, and any relevant banking or payment gateway details.

6. Contact Information

Provide your contact information, including email, phone number, and/or address, in case the recipient has any queries regarding the invoice.

7. Thank You Note

It's always polite to end the email with a thank you note, acknowledging the business transaction and expressing appreciation for the recipient's business.

8. Avoid Spam Filters

Be careful with your wording to avoid triggering spam filters. Avoid using too many salesy or hyperbolic phrases that might flag your email as spam.

9. Check Attachments

Before sending, double-check that the correct invoice is attached and that it's the latest version.

10. Use a Professional Email Address

Ensure you're sending from a professional email address that reflects your business name. Avoid using personal or free email services for business communications.

11. Test Email Delivery

Occasionally test your emails to ensure they're delivered properly and the invoice attachment can be opened without issues.

12. Follow Up

Consider sending a follow-up email if payment is not received by the due date, politely inquiring about the status of the payment.

13. Secure Attachments

If possible, consider using secure methods to send invoices, especially if they contain sensitive information.

14. Itemized Invoice

Ensure the invoice itself is itemized and detailed, listing each service or product provided, quantity, price, and any applicable taxes.

【AOTsend Email API】：
AOTsend is a Transactional Email Service API Provider specializing in Managed Email Service. 99% Delivery, 98% Inbox Rate. $0.28 per 1000 Emails.
AOT means Always On Time for email delivery.

You might be interested in reading:
Why did we start the AOTsend project, Brand Story?
What is a Managed Email API, Any Special?
Best 25+ Email Marketing Platforms (Authority,Keywords&Traffic Comparison)
Best 24+ Email Marketing Service (Price, Pros&Cons Comparison)
Email APIs vs SMTP: How they Works, Any Difference?

15. Due Date Prominence

Make sure the due date is prominently displayed on the invoice for clarity.

16. Invoice Numbering System

Use a consistent invoice numbering system to help with tracking and record-keeping.

17. Avoid Unnecessary Complexity

Keep the invoice design clean and simple, avoiding unnecessary graphics or complex layouts that might confuse the recipient.

18. Provide a Receipt

Once payment is received, send a receipt acknowledging payment and thanking the customer for their business.

19. Legal Compliance

Ensure your invoices comply with all relevant legal and tax regulations in your country or region.

Following these best practices for sending invoices via email can help streamline your business processes, improve customer satisfaction, and ensure timely payments. Remember, clarity and professionalism are key when communicating with your clients or customers.

AOTsend adopts the decoupled architecture on email service design. Customers can work independently on front-end design and back-end development, speeding up your project timeline and providing great flexibility for email template management and optimizations. Check Top 10 Advantages of Managed Email API. 99% Delivery, 98% Inbox rate. $0.28 per 1000 emails. Start for free. Pay as you go.