Email Submission

You can submit invoices by simply emailing them to the company. No special formatting required—just attach your invoice and send.

How it works

1. Email your invoice to the inbox’s unique email address
2. AI extracts data from your attached documents automatically
3. Confirmation received when your invoice is processed
4. Status updates sent as the invoice moves through approval

Finding the email address

Each inbox has its own unique email address in this format:

{inbox-name}.{company-name}@inbound.billerplus.com

For example: - default.acme-corp@inbound.billerplus.com — ACME Corp’s default inbox - accounting.acme-corp@inbound.billerplus.com — ACME Corp’s accounting inbox - downtown-office.widgets-inc@inbound.billerplus.com — Widgets Inc’s downtown office inbox

Contact your customer to get their inbox email address, or ask them to share it from their inbox settings page.

What to include

Required

• Invoice document — Attach as PDF or image file

Optional (but helpful)

• Subject line — Include invoice number or vendor name
• Email body — Any additional context or notes
• Multiple documents — Attach up to 3 files per submission

Supported file formats

Email attachments can be any of these formats:

Maximum 50MB per file, up to 3 files total.

AI extraction

BillerPlus uses AI to automatically read your invoice and extract:

• Vendor name (from letterhead)
• Invoice number
• Amount due
• Due date
• Currency

You don’t need to fill out any forms—the AI reads this directly from your document. If something can’t be determined with high confidence, the field is left blank for manual review.

Inbox routing

When you email an invoice, it goes directly to the specific inbox associated with that email address. This helps companies organize invoices by department, location, or project automatically.

Forwarded emails

Internal staff can forward invoices they receive from vendors. The system extracts data from the document, not the email headers, so forwarded invoices work seamlessly.

After submission

You’ll receive email notifications when:

• ✅ Invoice is approved for payment
• ❌ Invoice is rejected (with reason)
• ❓ More information requested (with resubmission link)

Tips for best results

• Use PDF format for clearest extraction
• Ensure text is readable — AI works better with clear documents
• Include complete invoice — Don’t crop important details
• One invoice per email for easier tracking

Troubleshooting

Email bounced back

• Verify the email address is correct (check inbox and company slugs)
• Check if your attachment is under 50MB
• Ensure you’re using a supported file format

Invoice not appearing

• Check your spam folder for confirmation
• Allow a few minutes for AI processing
• Verify you sent to the correct inbox address
• Contact the company if still missing after 10 minutes

Extraction seems wrong

• The company can manually correct any fields
• Future invoices with similar formatting will improve
• Consider using PDF format for best accuracy