Turn Receipt Emails Into Organized Expense Data

AI reads receipt emails, extracts vendor, amount, and category, then sends confirmation summaries. Expense tracking on autopilot.


Why this matters

Receipt management is tedious and error-prone. Important receipts get buried in inboxes, expenses go uncategorized until tax season, and manual data entry is a waste of time. For businesses processing hundreds of receipts monthly, the backlog grows until it becomes a compliance risk at audit time.


How MultiMail solves this

MultiMail's AI agent processes incoming receipt emails automatically — extracting vendor name, amount, date, and expense category from the email content. It sends a confirmation email to the submitter verifying the extracted data and categorization. Autonomous oversight handles both the inbound processing and outbound confirmations reliably.

1

Receive Receipt Emails

Receipts are forwarded to a dedicated MultiMail mailbox. The AI agent uses check_inbox and read_email to process new receipt emails as they arrive.

2

Extract Key Data

The agent parses the receipt email to extract vendor name, transaction amount, date, payment method, and line items. It handles various receipt formats from different vendors.

3

Categorize Expense

Based on the vendor and line items, the AI categorizes the expense (travel, meals, software, office supplies, etc.) using your company's chart of accounts.

4

Send Confirmation

The agent sends a confirmation email to the submitter with the extracted data and category. The submitter can reply with corrections if any data was extracted incorrectly.


Try it with your agent

Pick your platform, copy the prompt, and paste it to your AI agent — it sets up MultiMail and builds the whole flow. Nothing to fill in.

1. Get MultiMail ready: read https://multimail.dev/llms.txt, connect the MCP server, create a free inbox, and set up a verified sender. 2. In Expensify, use the existing receipt submission flow: employees can email receipts to Expensify for SmartScan, and admins can review expenses in company policies and reports. 3. Watch for new receipt submission emails copied or forwarded to the MultiMail inbox, extract vendor name, amount, transaction date, submitter, and likely expense category, then match it to the relevant Expensify policy or report context when available. 4. Send the submitter a confirmation email with the extracted fields, category, and any missing information needed before reimbursement or accounting review. 5. Run this in autonomous oversight mode, and ask me only for Expensify admin access, receipt-forwarding rules, approved categories, and brand voice before going live.

What you get

Automated Data Entry

AI extracts vendor, amount, date, and category from receipt emails automatically. No more manual data entry into spreadsheets or expense systems.

Instant Categorization

Expenses are categorized against your chart of accounts the moment a receipt is received. No more end-of-month categorization marathons.

Error Correction Built In

Confirmation emails let submitters verify and correct extracted data by simple reply. This creates a feedback loop that improves extraction accuracy over time.

Audit-Ready Records

Every receipt, extraction, and confirmation is logged in MultiMail's audit trail. When auditors ask for documentation, you have a complete, timestamped record.


Recommended oversight mode

Recommended
autonomous
Receipt processing involves reading inbound emails and sending confirmation summaries — both low-risk operations. Autonomous mode enables real-time processing as receipts arrive. The confirmation step with reply-based corrections adds a human verification layer without requiring pre-approval.

Common questions

How accurate is the AI at extracting receipt data?
Modern AI models extract vendor, amount, and date from standard receipt emails with 95%+ accuracy. Non-standard formats may have lower accuracy, which is why the confirmation step is important. Submitters can correct any extraction errors via reply, and these corrections train the system over time.
Can it handle receipts as image attachments?
Yes, if your AI model supports OCR or vision capabilities. MultiMail provides the email content including attachments via the API. Your agent extracts text from image attachments using OCR and processes them the same way as text receipts.
How do I map to my company's chart of accounts?
Provide your chart of accounts categories to your AI agent as a reference list. The agent matches vendor names and purchase descriptions to the most appropriate category. You can also maintain a vendor-to-category mapping table that the agent consults for consistent categorization.
Can I forward receipts from my personal email?
Yes. Set up your receipts mailbox to accept forwarded emails. When an employee forwards a receipt to [email protected], the agent processes it and sends the confirmation back to the forwarder. This works with any email client.

Explore more use cases

The only agent email with a verifiable sender

Email infrastructure built for AI agents. Verifiable identity, graduated oversight, and a hosted MCP server. Formally verified in Lean 4.