How to Email Invoices to BILL
A practical guide to routing invoice emails to the BILL destination shown in your account, checking the right setup details, and automating the inbox-to-BILL handoff.
By ilios Galil · Founder, Expensent
Published March 6, 2026 · Updated July 12, 2026
Skip manual forwarding when you can. Manual forwarding is only half the workflow. Most receipt emails stay in the inbox until someone remembers to forward them. Expensent connects to Gmail, Outlook, or Google Workspace via OAuth, surfaces invoice emails for review by next action, and forwards selected receipts to your BILL address — including historical inbox items that Gmail filters cannot backfill.
In This Guide
- 1. What Is BILL?
- 2. The BILL Inbox or Document Destination
- 3. Prerequisites: Before You Email Invoices
- 4. Step-by-Step: How to Route an Invoice Email to BILL
- 5. File Requirements to Verify in BILL
- 6. Vendor Direct-Send Considerations
- 7. All Invoice Submission Methods
- 8. Common Issues and Troubleshooting
- 9. Automate It with Expensent
- 10. Frequently Asked Questions
1. What Is BILL?
BILL (formerly Bill.com) is a financial operations platform for accounts payable (AP), accounts receivable (AR), spend management, approvals, payments, and accounting sync. Many people still search for the product as BILL.com, but BILL is the current brand.
BILL's AP product uses AI-powered automation to help capture invoices, route approvals, process payments, and sync with accounting software. It is the system of record for the AP workflow after the document reaches BILL.
The part this guide focuses on is the intake step before BILL AP does that work: getting invoice emails and attachments from your inbox into the correct BILL destination for your organization.
Because BILL account screens, permissions, and Help Center instructions can change, treat public email-address examples as placeholders. Use the exact destination shown in your own BILL account.
2. The BILL Inbox or Document Destination
Unlike tools that publish one global receipt address, BILL document intake is account-specific. Your team should use the current inbox or document destination shown inside BILL, not a copied example from another company or an old help article.
Use the exact BILL destination shown in your account:
your BILL inbox or document destination
Copy it from BILL or ask your BILL administrator before you set up forwarding rules.
Why examples are risky
BILL destinations can depend on your organization, product setup, permissions, and current BILL instructions. A public example may look plausible and still be wrong for your account. Always copy the live destination from BILL before using it in an email client, vendor portal, or automation tool.
Account-specific access
The ability to find, copy, or use the destination may depend on your BILL role and whether AP workflows are enabled for the organization. If you cannot see the destination, ask the BILL administrator who manages AP settings and permissions.
Where to Find Your Address
Log into BILL and look for the current AP inbox or document intake instructions for your organization. BILL's UI labels and settings paths can change, so use the in-product guidance or current BILL Help Center article rather than a hardcoded path.
Important: Verify the exact destination in BILL before forwarding invoices. A single typo can cause messages to bounce or miss the intended BILL workflow.
3. Prerequisites: Before You Email Invoices
Before sending your first invoice to BILL, make sure these requirements are in place.
BILL AP access
BILL AP & AR are paid subscription products, with free trials available in many cases. Confirm that your organization has AP enabled and that document intake is available for the BILL product, plan, and account configuration you use.
Permission to view setup
To find the correct destination, you need access to the relevant BILL AP setup area. If you cannot see it, ask your BILL administrator for the exact address or workflow destination your organization should use.
Know the exact destination
Copy the destination directly from BILL. Do not retype it from memory, infer it from your company name, or reuse a sample address. A small typo can keep the invoice out of the intended BILL workflow.
Use a supported document
Follow BILL's current file guidance for the submission path you use. Expensent supports PDF, JPG, and PNG attachments for invoice detection, extraction, and forwarding; other formats should be checked against BILL before relying on them.
4. Step-by-Step: How to Route an Invoice Email to BILL
Once you have the correct BILL destination, here's how to send an invoice into the workflow:
Find your BILL destination
Log into BILL and find the current AP inbox or document intake destination for your organization. If you cannot access it, ask your BILL administrator to copy it for you.
Verify the exact value
Confirm that the destination came from your BILL account, not from an example or old setup note. Save it as a contact or forwarding destination only after you have verified it.
Forward or compose with the invoice attached
Option A: Forward the original email. If you received an invoice email with a supported document attached, forward the email to the BILL destination shown in your account. Make sure the attachment is included in the forward.
Option B: Compose a new email. Create a new email to your BILL destination and attach the invoice file. Use a file type and size that BILL currently supports for that submission path.
Review the document in BILL
Confirm the document appears in BILL. BILL AI can auto-capture key invoice fields, but finance users should review the captured data before approval or payment:
- •Vendor details — confirm the vendor is correct before routing or paying
- •Invoice details — check invoice number, dates, and memo fields when present
- •Amount and due date — verify before approval and payment
5. File Requirements to Verify in BILL
BILL file requirements can differ by submission method: email intake, web upload, mobile capture, and API upload are not necessarily the same. Before you automate forwarding, verify the current BILL guidance for the path you plan to use.
Confirm Before Forwarding
- •Current accepted file formats for BILL email intake
- •Current file-size and email-size limits
- •Whether multiple attachments are handled the way you expect
- •How BILL treats embedded email-body invoices versus attached files
Use BILL's current Help Center or in-account instructions as the source of truth.
Do Not Assume
- •Old public size limits are still current
- •Every file type that BILL accepts by upload also works by email
- •Password-protected or compressed files will be processed the same way as plain invoice PDFs
- •Bulk attachment behavior works the same across accounts
Test with a small sample before enabling broad forwarding rules.
Expensent attachment support
Expensent supports PDF, JPG, and PNG attachments for invoice classification, extraction, and forwarding. If a vendor sends a different file type, confirm that BILL supports it before relying on automated forwarding.
6. Vendor Direct-Send Considerations
If your BILL account provides an AP inbox or document destination that is appropriate for vendor submissions, you may be able to share it with vendors. Confirm the current BILL instructions and your organization's policy before publishing the destination broadly.
How It Works
Copy the exact destination from BILL, then add it to vendor portals that support a billing email or AP contact. Keep a record of which vendors were changed so your finance team knows which invoices should arrive in BILL directly.
- Recurring vendor invoices can avoid individual inboxes after the vendor updates its billing contact
- BILL AP can auto-capture key invoice fields after documents arrive
- Best fit for vendors that support configurable invoice email recipients
- Still requires finance review and the configured BILL approval workflow
Limitation: Vendor direct-send does not cover all invoice sources. Vendors may keep using your personal email, send portal-only notifications, or require manual downloads. Expensent helps catch those inbox and portal-follow-up cases before they are routed to BILL.
7. All Invoice Submission Methods
Email forwarding is one way to get invoice documents into BILL. Depending on your product, permissions, and setup, common intake paths can include:
Email Forwarding
Forward invoice emails to the BILL destination shown in your account. This is often useful for ad-hoc invoices and works best when the invoice document meets BILL's current file requirements.
Web Upload or Bill Entry
Upload or attach invoice files directly through the BILL web app when the document has already been downloaded. Use the current labels in your BILL account because menu names can change by product and role.
Mobile App Scanning
If mobile capture is enabled for your BILL account, use the BILL mobile app for physical invoices received by mail or in person. Review the captured data before routing the bill for approval.
Third-Party Integrations
BILL connects with accounting systems and other finance tools. Expensent sits before BILL in the workflow: it identifies invoice emails in your inbox, shows what needs attention, and forwards eligible documents to your BILL destination.
Vendor Direct-Send
When your BILL instructions and company policy allow it, add the BILL destination to vendor portals so recurring invoices can be sent there directly.
8. Common Issues and Troubleshooting
If your invoices aren't appearing in BILL, work through these checks:
Invoice not appearing in Inbox
Most common cause: wrong email address. Double-check the exact destination in BILL or with your BILL administrator. Also check your email's Sent folder and any bounce-back message to confirm whether the email was delivered.
Stale setup note or copied example
Public examples and old internal docs can look convincing while still being wrong for your organization. Replace any remembered or hand-typed address with the current destination copied from BILL.
File does not meet current BILL requirements
If the email arrives but the document is not usable, check the current BILL guidance for accepted formats, size limits, password-protected files, and multi-attachment behavior. Test a clean PDF or image attachment if you are unsure.
Duplicate invoice detection
If the same invoice is sent more than once, review any duplicate warning BILL presents and remove unnecessary copies before the bill moves deeper into approval. Do not rely on duplicate detection as a substitute for a clean forwarding process.
5.Processing delay
Processing can take time, especially for large or complex documents. If the invoice does not appear, verify the destination, check for bounce-back messages, and consult BILL support or your administrator before re-sending repeatedly.
6.Account or subscription issues
If AP is not enabled, your plan changed, permissions were removed, or billing status is blocking access, document intake may not work as expected. Contact your BILL administrator or BILL support to confirm account status.
9. Automate It with Expensent
While BILL vendor direct-send can work for some vendors, many invoices still arrive in your personal email inbox. Manually forwarding each one to BILL takes time and creates gaps. Expensent closes the inbox-to-BILL handoff without replacing BILL AP.
Connect your email
Link your work email using secure OAuth without giving Expensent your password. Gmail, Outlook, and IMAP supported.
Set your BILL destination
Enter the exact BILL inbox or document intake destination shown in your account as your forwarding destination.
Review, forward, or create a rule.
Expensent shows what needs attention. You can forward a selected invoice now or create an auto-forwarding rule for future similar invoices.
Where Expensent Adds Review Before the BILL Inbox
- Finds invoices vendors still send to you — Some vendors will not update their billing email. Expensent helps surface invoice emails that still land in your inbox.
- Controlled recurring routing — Forward selected invoices from one review flow, then create rules for repeat patterns
- Invoice candidate review — Recognizes invoice patterns across many vendors, not a fixed sender list
- Review visibility — See ready-to-forward, download-needed, and needs-review items before they are routed to BILL
- Paper receipt capture — Built-in phone camera scanner turns paper receipts into forwarded documents
- AI price extraction — Reads amount, currency, and recipient from supported attachments when the document is suitable for extraction
- Fine-grained control — CC your team, add notes, filter by attachment type, skip $0 invoices, or reject reviewed sender-and-subject patterns
- Repeatable setup — Create rules from reviewed examples instead of hand-writing broad filters
Want to see how the integration works in detail? See the BILL Integration Page →
10. Frequently Asked Questions
Can you email invoices to BILL?
How do I find my BILL inbox email address?
What file formats does BILL accept via email?
Why is my emailed invoice not appearing in BILL?
Can vendors email invoices directly to BILL?
Does BILL extract data from emailed invoices?
What is the maximum file size for emailing invoices to BILL?
Can I email multiple invoices to BILL at once?
Does BILL handle duplicate invoices sent by email?
Can I automate forwarding invoices to BILL?
Is BILL the same as Bill.com?
Do I need a BILL subscription to email invoices?
Stop manually forwarding invoices to BILL
Connect Expensent, review invoice emails, and route eligible documents to the BILL destination shown in your account.
Get Started