Quittance Blog
The Quittance blog
Notes on accounts payable, invoice review, and the work of closing the books.
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Welcome to the Quittance blog
A short note on what we will write about here - accounts payable, invoice review, and the work of closing the books.
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Why Only 18% of Firms Continuously Revalidate Vendor Bank Details
New 2026 fraud data shows only 18% of firms continuously revalidate vendor bank details, leaving AP teams exposed to bank-change scams.
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Can n8n and Pennylane Really Automate Invoice Matching?
n8n has community nodes for Pennylane's API. Here is what a DIY invoice-matching workflow can automate, and where it still misses rate-card overbilling.
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What Should an Invoice Matching Solution Actually Catch Before You Pay?
A practical guide to evaluating invoice matching solutions: what each matching level checks, what it misses, and how to judge if one is worth it.
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Why the Balance in a QuickBooks Invoice Email Doesn't Match the Invoice
The balance in a QuickBooks invoice email can differ from the invoice itself, and that gap can hide a real payment error. Here's what causes it.
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How Does Three-Way Invoice Matching Work, and Where Does It Fall Short?
Three-way invoice matching checks a PO, receipt, and invoice before payment. Here's how the check works, and the errors it still misses.
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What Does It Really Cost to Process One Invoice?
APQC and Ardent Partners benchmark data on what it actually costs to process one invoice manually versus with automation, and why the number varies so much.
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Why Duplicate Payments Happen in Accounts Payable
Duplicate payments rarely trace to one careless click. They trace to gaps in matching, vendor data, and approval routing that let the same bill through twice.
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Duplicate Payment Fraud: Risks and Controls
What duplicate payment fraud actually costs, how it slips past AP review, and the controls that catch it before the money is gone.
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AI-Generated Fake Invoices Are Now Passing AP Review. Here's What Catches Them
AI-generated invoices can look perfect and still fail an agreement check. Here's what to verify before you approve the next one.