Light provides multiple methods to enter vendor bills: manual entry, file upload (with AI extraction), and vendor portal submission. This article covers all bill entry methods.
Last updated Feb 18, 2026 · 3 min read
A bill in Light represents a vendor invoice. Bills contain:
Bills progress through states: DRAFT → POSTED → PARTIALLY_CLEARED → CLEARED → ARCHIVED.
Navigate to Spend management → Bills
Click Create Bill
Select the Vendor (or create inline)
Set bill metadata:
Click Next to add line items
Click Add Line Item
Enter line details:
Light calculates Line Total including tax
Click Add
Repeat for each line
Good to know: You can override tax calculations per line if needed, though Light generally calculates tax correctly.
In the bill details, navigate to Tax
Light may auto-calculate based on vendor location and products
Review calculated tax:
Override if needed and click Save
The total amount (subtotal + tax) is shown at the bottom.
Light's AI automatically extracts invoice data from PDF and image files:
Tip: Invoice PDFs work best; clear photos of printed invoices also work well.
After upload, review the AI extraction:
Light shows the original invoice image and extracted data side-by-side
Verify:
Click on extracted fields to correct if needed
If vendor or line items are incorrect, click Correct and make changes
Click Confirm Extraction
AI is typically 90%+ accurate on standard invoices.
Upload multiple bills at once from a spreadsheet:
Navigate to Spend management → Bills
Click Bulk Actions > Import Bills
Download the CSV template
Fill in bill data:
Save as CSV
Click Upload CSV
Light validates and shows preview
Click Import
Light creates draft bills for all valid rows and reports any errors.
Bills progress through these states:
To change a bill's state:
The three-way match validates that Purchase Order (PO), receipt, and bill align:
Open the bill
Navigate to Three-Way Match
Light checks for linked PO and Receipt
Review:
If mismatches exist, Light highlights them
Click Resolve to document discrepancies
Choose action: Approve despite discrepancy, reject bill, or request correction
Good to know: Three-way matching can be configured to auto-approve if all fields match within tolerance (e.g., amount within 2%).
Associate a bill with a Purchase Order:
Open the bill
Navigate to Related Documents
Click Link to PO
Search for and select the PO
Light validates:
Click Link
Linked POs show on the bill; linked bills show on the PO.
Light flags potential duplicate bills:
When creating a bill, Light checks for:
If potential duplicate found:
To correct information on an existing bill:
Amendments maintain audit trail of original and corrected amounts.
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