Months of Invoices in Your Inbox. Extracted in Minutes.
When you connect a new email account, Inbox Ledger does not just monitor future emails. The Historical Email Scan reaches back up to 93 days, processing your backlog of invoices with the same AI pipeline that handles real-time extraction.
Key Historical Email Scan Capabilities
Built-in functionality that eliminates repetitive document tasks
Configurable Date Range
Choose any window from the last 93 days. Scan the past week, the last quarter, or anything in between.
Built-In Presets
Quick-select "This month," "Last month," or "Last quarter" to start scanning common accounting periods instantly.
Up to 1,000 Messages per Scan
Each historical scan processes up to 1,000 messages. For larger inboxes, run multiple scans with different date ranges.
Pre-Classification Included
The same AI pre-classifier filters out non-financial attachments, saving credits on marketing PDFs and newsletters.
Incremental After First Scan
Once the backlog is processed, the scanner switches to incremental mode — only new emails are checked going forward.
Credit-Efficient Batching
Historical scans process documents in batches, and only financial documents consume credits. Non-financial attachments are skipped at no cost.
What the Historical Scan Finds
AI identifies and extracts data from every supported format
Unpaid Vendor Invoices
Invoices received weeks or months ago that were never logged in your accounting system.
Missed Receipts
Subscription renewals, one-time purchases, and service receipts buried in old email threads.
Forgotten Attachments
PDF attachments in emails you opened but never downloaded or processed.
Multi-Month Backlogs
Quarter-end or year-end catch-up: scan three months of history in a single batch operation.
Cross-Provider History
Run historical scans on Gmail, Outlook, and IMAP accounts independently — merge results in one dashboard.
Archived Thread Attachments
Invoices in threads that were archived or moved to folders — the scanner searches all mailbox locations.
How It Works
From connection to first extracted invoice in under five minutes
Connect Your Email Account
Link your Gmail, Outlook, or IMAP account via OAuth or secure credentials. The same connection supports both historical and real-time scanning.
Select a Date Range
Choose a preset (This month, Last month, Last quarter) or set a custom start and end date within the 93-day window.
AI Scans Your History
The scanner retrieves messages from the selected period, pre-classifies attachments, and sends financial documents through the extraction pipeline.
Review and Export
Extracted invoices appear in your dashboard with full field detail. Export to QuickBooks, Xero, Google Sheets, or Drive.
Who Benefits Most
Designed for finance professionals and teams managing high-volume documents
New Signups Migrating to Inbox Ledger
Just connected your email? The historical scan catches up on months of invoices so you start with a complete picture.
Year-End Audit Preparation
Finance teams preparing for annual audits can scan the last quarter to ensure every invoice is accounted for.
Accountants Onboarding New Clients
When taking on a new client, scan their email history to build a baseline invoice archive from day one.
See Historical Email Scan in Action
Set up in under 5 minutes and let AI handle the busywork.
Frequently Asked Questions
The maximum lookback window is 93 days from the current date. This covers a full quarter of email history. For older documents, use manual PDF upload.
One credit per extracted financial document — the same rate as real-time scanning. Non-financial attachments identified by pre-classification are skipped at no cost.
No. The scanner tracks sync state per email account. Messages processed during a previous scan or real-time monitoring are automatically skipped.
Processing speed depends on the number of messages and attachments. A typical scan of 500 emails with 100 PDF attachments completes in 10 to 15 minutes.
Gmail allows access to the full 93-day window via History API. Outlook supports the same range via Delta Query. IMAP lookback depends on the provider retention policy.
Yes. You can run separate scans with different date ranges. Each scan operates independently and respects the deduplication safeguards.
Emails older than 93 days are not accessible through the email scanning API. For older documents, download PDFs manually and use the PDF Invoice Extractor.
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