Supplier invoice processing — Supplier bills entered and matched to the order, ready for approval
Supplier invoice processing reads the bills that arrive by email or on paper. It pulls out the vendor, line items, totals and due date, then checks them against the purchase order and what was received. Matching bills become drafts in your accounting software, and anything that doesn't match goes to a person before payment.
By Julia Ja, Owner
Bill drafted · produce invoice
Coded to food cost| Item | This invoice | Last order |
|---|---|---|
| Avocados, case | $64.00 | $52.00 |
| Romaine, case | $38.50 | $38.50 |
| Limes, case | $41.00 | $41.00 |
Matched to the delivery. The avocado price is higher than last order, so the bill is flagged.
Approve the corrected billWhy it matters
The problem it solves
Supplier bills come in by email, in the mail and tucked into delivery boxes. Someone types each one into the accounting software, often in a batch when they find time.
The typing is slow, but the bigger problem is what slips through. A price increase, a short delivery or the same invoice sent twice gets paid because nobody checked it against the order.
Example · illustrative
A restaurant's Tuesday delivery
- At 7 am the produce distributor drops off the order and emails the invoice.
- By 7:30 the bill is drafted in the accounting software and coded to food cost.
- The avocado line is priced higher than on the last order, so the bill is flagged.
- The manager sees both prices side by side, calls the rep and gets a credit.
- She approves the corrected bill before lunch.
How it works
How supplier invoice processing works
- Starts whenA supplier invoice lands in the bills inbox or is scanned
- 1Step 1Read the invoiceVendor, invoice number, line items, tax, total and due date are read from the PDF, scan or photo.
- 2Step 2Match itLines are compared to the purchase order and the delivery record, and the invoice number is checked for duplicates.
- 3Step 3Draft the billA bill is created in the accounting software with the account codes and the job or location it belongs to.
- A person decidesApprove for paymentA person approves matched bills and resolves price or quantity differences.
Before · by hand
- Bills pile up in an inbox and on the desk.
- Someone types each line into the accounting software.
- Price increases and duplicate invoices slip through.
With supplier invoice processing
- Each bill is entered as a draft soon after it arrives.
- Price and quantity differences against the order are flagged.
- Approvers see the invoice, the order and the receipt together.
What we build
The parts of supplier invoice processing
Your systems
- QuickBooks Online
- Xero
- NetSuite
- Microsoft 365
- Google Drive
- AppFolio
What we build
1Bills inbox
A dedicated email address and scan folder where vendors and staff send every bill.
2Invoice reader
Reads vendor, invoice number, line items, tax, total and due date from PDFs, scans and photos.
3PO and receipt matching
Compares each line to the purchase order and what was received, and checks for duplicate invoice numbers.
4Coding rules
Assigns account codes, jobs, locations or properties from your rules and from past bills by the same vendor.
5Approval routing
Sends each draft bill to the right approver by amount, vendor or location, with the invoice, order and receipt attached.
Your team decides
- A person approves every bill before it's paid.
- The office reviews mismatches and bills from new vendors.
- The owner sets who can approve what.
Industries it fits
What supplier invoice processing looks like in each industry
Roofing & general contractors
Lumber and material bills are coded to the right job, so job costs stay current. Bills that push a cost code past its budget go to the project manager before approval.
Everything for roofing & general contractorsYour industry isn’t listed, or works differently? Describe it and get an answer in a minute.
Getting started
What you need first
We go through these with you in the audit, before anything is built.
Before we start
5 things to have ready- Accounting software with your vendor list and chart of accounts, such as QuickBooks Online, Xero or NetSuite.
- One place bills arrive, or a willingness to set up a bills email address and tell your vendors.
- Purchase orders and receiving records for full matching, or past bills if you don't use POs.
- Your coding rules and who can approve what, by amount, vendor or location.
- A person who resolves mismatches and approves bills.
How a rollout runs
- 1Collect sample billsWe gather recent bills from your main vendors, including the messy ones, to see which formats need reading.
- 2Map coding and approvalsWe write down how each vendor is coded today and who approves which bills, then turn that into rules.
- 3Connect and set match rulesWe connect the bills inbox, accounting software and any PO or receiving system, and set how close a match must be.
- 4Run beside manual entryNew bills are drafted while staff still enter them, and we compare the two to catch reading or coding errors.
- 5Switch over by vendorVendors whose bills read cleanly move first. Harder formats follow once they're reliable.
What to measure
How to know it's working
Weekly report · supplier invoice processing
IllustrationBills drafted without edits
Shows how well the reader and coding rules work for your vendors.
Mismatches caught before payment
Price, quantity and duplicate catches are the main reason to match at all.
Time from bill arrival to approval
Shows whether bills reach approvers soon enough to pay on time.
Bills paid late
Late fees and missed early-pay discounts often come from bills stuck in an inbox.
Vendors still entered by hand
Shows which bill formats need more work.
We measure the baseline before building, so the change can be compared afterwards.
When it’s not a fit
- If you get only a handful of bills a month from a few vendors, typing them may be simpler. Check your volume first.
- Matching is only as good as your POs and receiving records. If deliveries aren't logged, the check falls back to past prices.
- Handwritten or unusual invoices may always need a person. Plan for some manual entry.
- It doesn't decide what to pay. Approval and payment stay with people.
Tool or custom build
Do you need a custom build?
Option A · a ready-made tool
An off-the-shelf tool may be enough
Tools like Dext, Hubdoc and BILL read supplier invoices and send them to QuickBooks or Xero. They suit businesses that mainly need data entry rather than matching.
Option B · built around your systems
When a custom build is worth it
A custom build makes sense when bills must match POs and receiving records in another system. It also fits job or property coding and detailed approval rules.
Not sure which fits?
What it typically costs
Typical ranges as of October 2026. Not a quote.
Ready-made tool, set up by us
An existing platform on your own account, configured for your business.
- Setup, one timepaid to Lorryn
- $1,000–$2,000
- Tool subscriptionpaid to the provider
- $25–$100 / month
Fits when your process matches what the platform already does.
Custom build
Built around how you work, with no platform subscription. You own it.
- Build, one timebasic version to full version
- $2,000–$9,000
- Running costshosting and usage, on your accounts
- ~$5–$25 / month
Fits when your systems, rules or exceptions don't match a ready tool.
Optional Automation Care: $125 · $250 · $375 / month
1, 2 or 3 hours of support a month, with monitoring and alerts included. Without it, you run it yourself after handover.
Typically works with QuickBooks Online, Xero, NetSuite, Microsoft 365.
Booking into or writing to your field-service, practice or shop software adds up to $500 to the ready-made tool (often a built-in feature) and $500–$1,500 to a custom build.
Your price depends on volume, the systems involved and how many exceptions need a person. Our team confirms a fixed price before any work starts.
Proof and who stays in charge
Who does what
The automation does the routine steps. A person makes the call.
- 1Read the invoiceAutomated
- 2Match itAutomated
- 3Draft the billAutomated
- 4Approve for paymentA person
FAQ
Questions about supplier invoice processing
PDF attachments, scanned paper and phone photos usually work. Very poor scans are flagged for a person to check.
It prepares them. Paying stays a human decision, made in your accounting software or bank.
It can compare each bill to that vendor's past bills and usual prices instead, and flag anything unusual.
It follows rules you set and how past bills from the same vendor were coded. Anything it isn't sure about is left for review.
Most layout changes are handled. If a new format reads poorly, that vendor's bills go to review until it's adjusted.
Yes. It checks the invoice number, vendor, amount and date against bills already entered, and flags close matches for a person.
Only the people and systems you choose. Access follows the roles already set in your accounting software.
Related use cases
Often built together
- Intake & documentsDocument data extractionReads invoices, forms, photos and handwritten notes and turns them into clean data for your systems.
- Inventory & operationsApproval workflowsRoutes price changes, purchases, discounts and refunds to the right person and records each decision.
- Billing & paymentsBank and payment reconciliationMatches bank deposits and processor payouts to invoices and flags what doesn't line up.
Want supplier invoice processing for your business?
Pick the step that suits you. Every path starts with how the work runs today, and we'll say honestly whether it's worth automating.
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