We buildAutomation · Accounts payable

Automation for accounts payable

n8nOCR + LLMQuickBooks OnlineXeroGmail / OutlookSlack approvals
Who it is for

Who AP automation
is built for.

01 Owners who approve every bill

You sign off on vendor invoices yourself, and the AP inbox is eating your evenings.

02 Office managers and bookkeepers

You retype invoices into QuickBooks or Xero and chase approvals by email.

03 Controllers in growing companies

Hundreds of invoices a month, a close that keeps slipping and exceptions nobody owns.

04 Businesses with many vendors

Contractors, distributors, restaurant groups, clinics and property managers.

The problem

Why manual accounts payable
costs more than it looks.

Numbers from the latest AP benchmark studies — the gap between an average team and the best ones is almost entirely automation.

Average cost to process one invoice. Best-in-class AP teams get it down to $2.78.

Ardent Partners, 2025 ↗

Average invoice cycle time, against 3.1 days at the best teams — late fees and missed early-payment discounts.

Ardent Partners, 2025 ↗

of AP teams name exceptions — PO mismatches, unknown vendors, bad scans — as their biggest problem.

Ardent Partners, 2025 ↗

of invoices go through with no human touch on average. Everything else still waits for a person.

Ardent Partners, 2025 ↗

of US organizations faced payments fraud in 2025; fake bank-detail emails are a main route.

AFP Payments Fraud and Control Survey ↗

is what issuing a single paper check costs once printing, postage and reconciliation are counted.

Bottomline, citing Ardent Partners / IOFM ↗
Your numbersWhat does this cost you?

Put your monthly volume into the calculator and see hours and dollars.

What is accounts payable automation?

Accounts payable automation replaces the manual path every vendor invoice takes — open the email, retype the numbers, hunt for the purchase order, chase an approval, post the bill, schedule the payment — with a workflow that does the routine steps on its own. In a typical AP process most of the time is not spent on decisions but on moving data between an inbox, a spreadsheet and the accounting system. That is exactly the part AP automation removes.

We build AP automation as a workflow around the tools you already use rather than a new platform to migrate to. Invoices arriving at your AP inbox are read with OCR and a language model, validated, checked for duplicates and matched to purchase orders. Clean invoices are routed for invoice approval in Slack or Teams and posted to QuickBooks Online, Xero or your ERP with the PDF attached. Exceptions — a price mismatch, an unknown vendor, a request to change bank details — stop and go to a person with the reason written out.

What changes when you automate accounts payable

Invoice processing automation shortens the cycle from receipt to approval from days to hours, protects early-payment discounts and leaves an audit trail of who approved what. Your team stops retyping and starts handling only the invoices that genuinely need judgement. The payment run is still approved by a person, so end-to-end AP automation never means losing control of the money.

The workflow

AP workflow automation:
13 nodes, zero retyping.

The run path of a typical accounts payable workflow. Each invoice travels it on its own; anything unclear stops and goes to a person.

Every node

Every node of the
accounts payable workflow.

Intake & read
01Trigger

New invoice email

Watches the AP inbox (ap@…); every PDF or image attachment starts its own run, including invoices forwarded from colleagues.

02Code

Save the original

Stores the file under a stable name in Google Drive or SharePoint, so every bill in the books links back to its source document.

03Model call

Extract invoice fields

OCR plus a language model read vendor, invoice number, dates, line items, tax and total into a strict schema — on any vendor template.

04Code

Validate and dedupe

Totals must add up, the vendor must exist, and the same number, amount and date must not already be in the books. Otherwise the run stops here.

Check & match
05IF

Bank details changed?

Emails that ask to change a vendor’s bank account are flagged; the vendor is put on hold until someone verifies by phone on a known number.

06HTTP

Find the PO and receipt

Looks up the purchase order and goods receipt in QuickBooks, Xero or your ERP by vendor, PO number and amount.

07Code

Two- or three-way match

Compares invoice, PO and receipt line by line using your price and quantity tolerances.

08IF

Within tolerance?

Clean matches go straight on. Anything off is routed to the right person with the reason already written out.

Approve, post & pay
09HTTP

Invoice approval

Sends a Slack or Teams card with the PDF and Approve / Reject buttons to the approver chosen by amount and cost centre.

10Loop

Remind and escalate

Reminds after 24 hours, escalates after 48 and logs who approved what and when — your audit trail.

11HTTP

Create the bill

Posts the bill to QuickBooks Online or Xero with GL codes learned from the vendor’s history, attaches the PDF and sets the due date.

12Set

Build the payment run

Groups approved bills by due date and early-payment discounts into one batch. A person approves the batch — money never moves on its own.

13Code

AP aging digest

Monday summary in Slack: invoices processed, open exceptions, upcoming payments and hours saved.

Before / after

Invoice processing automation:
before and after.

Typical minutes per invoice in a small AP team. Your own numbers go into the calculator below.

By hand12 minper item
  • Open the email, download and file the PDF2 min
  • Key the invoice into QuickBooks or Xero4 min
  • Check the vendor, duplicates and totals1.5 min
  • Find the PO and match the lines2 min
  • Chase the approval by email1.5 min
  • Code, post and schedule the payment1 min
With the flow36 secper item, hands-on
  • Open the email, download and file the PDFauto
  • Key the invoice into QuickBooks or Xeroauto
  • Check the vendor, duplicates and totalsauto
  • Find the PO and match the lines12 sec
  • Chase the approval by email18 sec
  • Code, post and schedule the payment6 sec
Your numbers

What AP automation
saves at your volume.

Based on 12 min by hand and 36 sec with the flow per item, from the table above.

Every month0 hof hands-on work back
0 working days
$0 a month 0 a year 0 h instead of 0 h
You stay in control

End-to-end AP automation,
with you in control.

The flow reads, checks, matches and routes. People keep every decision that moves money.

The flow does13 steps · every run
New invoice email
flow
Save the original
flow
Extract invoice fields
flow
Validate and dedupe
flow
Bank details changed?
flow
Find the PO and receipt
flow
Two- or three-way match
flow
Within tolerance?
flow
Invoice approval
flow
Remind and escalate
flow
Create the bill
flow
Build the payment run
flow
AP aging digest
flow
You decide6 steps · always a person
Approvals above your threshold

Large or out-of-budget invoices always go to the budget owner.

you
The payment batch

The flow prepares it; a person approves it before anything is paid.

you
Bank-detail changes

Verified by a phone call on a number you already have — never by email.

you
Exceptions and disputes

Price or quantity mismatches, partial deliveries and credit notes.

you
New vendors

W-9 collection and company checks before the first bill is posted.

you
Uncertain GL coding

When the model is not sure, a bookkeeper confirms the account.

you

Flip a switch to hand a step to the flow or take it back.

Connects to

Accounts payable automation
for QuickBooks, Xero and more.

Results

What good AP looks like
and what we build toward.

Benchmarks from Ardent Partners’ 2025 AP study: the best teams turn an invoice around in about three days, with half of all invoices never touched by a person and exceptions under one in ten.

0 days
invoice cycle time at best-in-class teams (Ardent Partners)
0%
of invoices processed with no human touch at the best teams
0%
exception rate at the best teams, against 22% for the rest
How we work

How an AP automation project
runs, week by week.

Week 1Audit

We map the process as it runs today, count the minutes and agree what the flow must never do on its own.

Weeks 2–3Prototype

A working flow on your real data, in a sandbox. You see every run and every exception.

Weeks 3–6Launch

Edge cases, approvals and alerts, then the switch-over — with the old way kept as a fallback.

AfterSupport

Monitoring, fixes when a vendor changes a format, and a monthly report of hours saved.

FAQ

AP automation questions
we hear every time.

Does accounts payable automation work with our QuickBooks Online or Xero, or do we have to switch systems?

It works with what you already have. The flow writes bills through the QuickBooks Online and Xero APIs, and NetSuite, Sage Intacct and Business Central are supported too. Your chart of accounts and approval rules stay the same.

How accurate is invoice reading on different vendor templates?

Fields are extracted by an OCR and language-model step into a strict schema, then checked by code: totals must add up and the vendor must exist. If anything is uncertain, the invoice goes to a person with the field highlighted instead of being posted.

Will the automation pay vendors on its own?

No. It prepares the payment run by due date and early-payment discounts, and a person approves the batch. Money never moves without a human sign-off.

How does it catch duplicate invoices and fake bank-detail emails?

Every invoice is checked by vendor, number, amount and date against what is already in your books. Emails asking to change bank details are flagged, the vendor is put on hold and a call-back task is created to verify on a known number.

How many invoices a month make AP automation worth it?

Put your own volume into the calculator above. Teams handling a few hundred invoices a month usually win back days of work every month; at very low volumes a simple off-the-shelf tool may be enough.

Why not just use Bill.com or Ramp?

They are good when your process fits them. A custom AP workflow makes sense when you have your own approval rules, several entities, a specific ERP or documents an off-the-shelf tool reads poorly — and you would rather not add another per-user subscription.

Where does our financial data live?

On your own server or in your own cloud account. The extraction model can run locally, so invoices never leave your network, and every step is logged for audit.

Also automated

More flows
next door.

Available for new projects

Still doing this
by hand?

Describe it in two sentences — we reply within a day with a workflow sketch.

hello@wireclad.com →