Invoice Processing Checklist for Small Business
A complete invoice processing checklist covers five stages: capture the invoice on arrival, verify it matches what was ordered, enter every field into your books, file the document where your records live, and schedule the payment before the due date. The goal is simple — no invoice sits unprocessed at the end of the day, and no payment is late because the invoice was lost in an inbox.
Most invoice problems in a small business are not accounting problems — they are process problems. An invoice arrives by email, sits unread for a week, gets entered with a typo, and three months later the VAT does not reconcile. This checklist is the routine that prevents that. It is the same set of steps Nika runs automatically, written out so you can do it by hand or hand it to someone. Every step has a reason: skip one, and you pay for it later — in duplicate payments, missed VAT, or hours of cleanup at year-end.
Capture & verify
Check the invoice inbox and forwarders at least once a day
Invoices left in an inbox for days are the single biggest source of late-payment fees and duplicate entries. A daily check keeps the pile from growing — and a daily pile is faster to clear than a weekly one.
Confirm the invoice is for goods or services you actually received
Catching a wrong or fraudulent invoice before it enters your books is far cheaper than clawing back a payment after the fact. Match it against a purchase order or delivery note.
Check for duplicate invoice numbers from the same supplier
Suppliers occasionally resend invoices or reissue them with the same number after a correction. A duplicate check prevents paying the same bill twice — the most common and most preventable overpayment.
Enter & file
Enter supplier, date, invoice number, net amount, VAT amount and VAT rate
These six fields are what your accountant needs to reconcile VAT and prepare returns. Entering all of them on the day the invoice arrives — every field, every time — is what separates clean books from a year-end scramble.
Flag any VAT rate that does not match the supplier’s usual rate
A supplier who normally charges 24% VAT suddenly charging 13% is usually a typo on their side, not a tax saving. Entering it wrong means correcting it later in your VAT return — and explaining it to the tax office.
File the PDF or scan where your records live — not in your personal inbox
If an invoice lives only in one person’s email, it vanishes the day that person leaves. A shared, named location means anyone can find it during an audit, and nothing is entered twice because no one knew it already existed.
Pay & close
Schedule the payment so it lands on or before the due date
Paying on time is the cheapest way to keep supplier terms. A missed due date quietly erodes credit terms, triggers late fees, and in some jurisdictions forfeits early-payment discounts you negotiated.
Mark the invoice as paid and link it to the payment record
An invoice marked paid — with a reference to the bank transaction — is what closes the loop. Without that link, the same invoice can be questioned again at year-end, reopening work you already finished.
How Nika helps
Nika does the first two stages — capture, verify, enter, file — the day each invoice arrives. She watches the mailbox, enters all six fields, flags duplicate numbers and unusual VAT rates, and sends anything unclear to you before she files it. You pay only for invoices she actually finishes. The payment step stays with you or your accountant.
Questions
How long does it take to process one invoice?
A trained person processes a clean, emailed invoice in about 3–5 minutes — reading, entering six fields, and filing. Photocopied or handwritten invoices take longer because fields must be deciphered. The time per invoice is not the bottleneck; consistency is. A 3-minute invoice skipped for two weeks becomes a late fee.
What does Nika cost per invoice?
{price} per processed invoice — the same whether you send her 10 or 500 a month. You pay only for invoices she completes; if she stops and asks you about something unclear, that invoice is not charged.