Interview questions

Accounts Payable Specialist Interview Questions

19 accounts payable interview questions on three-way match, duplicate payments, vendor fraud and month-end accruals, with what a strong answer sounds like.

Updated October 27, 2026

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19 Accounts Payable Specialist interview questions, grouped into 4 areas: ap process and controls, accuracy, fraud and vendor records, systems and communication and situational questions. Each one comes with why it is worth asking and what a strong answer contains, so the same question can be scored the same way by different interviewers.

Give a short exercise: a PO, a goods receipt and an invoice with one mismatch, and ask what they would do
Ask the bank-detail-change question to every AP candidate; the answer shows fraud awareness quickly
Test Excel with a small vendor statement reconciliation instead of asking them to rate their skills

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Accounts payable specialists process supplier invoices, keep vendor records clean, run payments and support month-end close. Small errors cost real money: duplicate payments, missed early-payment discounts, or a fraudulent change to a supplier's bank details. These questions check process knowledge, attention to detail, control awareness and how the candidate handles suppliers and approvers. They work for AP clerks, specialists and senior AP roles, and job seekers can use the notes to prepare.

AP Process and Controls

Core accounts payable knowledge: matching, coding, approvals and payment runs.

1
Explain a three-way match. What do you do when the invoice does not match the purchase order or receipt?
Why ask it
Three-way matching is the foundation of AP control.
What to look for
Matching purchase order, goods receipt and invoice on quantity and price. For mismatches: hold the invoice, check within tolerance rules, contact the buyer or receiver, request a credit note or corrected invoice, and never force a match without approval.
2
How do you process an invoice that arrives without a purchase order?
Why ask it
Non-PO invoices are a common control gap.
What to look for
Route to the budget holder for approval under the delegation of authority, code to the right account and cost centre, flag repeat non-PO suppliers to procurement, and follow company policy on retrospective POs.
3
Walk me through how you prepare a payment run.
Why ask it
Payment runs are high-risk and high-value.
What to look for
Selecting approved invoices due, checking for duplicates and holds, reviewing payment terms and discounts, reconciling the proposal, getting approval from someone else before release, and keeping an audit trail.
4
What is the difference between an accrual and a prepayment, and how does AP support each at month end?
Why ask it
AP specialists feed the close process.
What to look for
Accrual: expense incurred, invoice not yet received. Prepayment: paid in advance for future periods. AP helps by flagging received-not-invoiced items, unprocessed invoices and prepaid items to the accounting team.
5
How do you make sure invoices are coded to the right general ledger account and cost centre?
Why ask it
Miscoding distorts management reporting.
What to look for
Using the PO coding, chart of accounts guidance, asking the budget holder when unclear, checking against prior invoices from the same vendor, and correcting errors with a proper journal rather than leaving them.

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Accuracy, Fraud and Vendor Records

AP is the last line of defence against duplicate and fraudulent payments.

6
How do you prevent duplicate payments?
Why ask it
Duplicate payments are one of the most common AP losses.
What to look for
System duplicate checks on vendor, invoice number, amount and date; standard invoice number formatting; checking for invoices paid by card or cheque elsewhere; reviewing statements; and investigating near-matches.
7
A supplier emails asking to change their bank details. What do you do?
Why ask it
Bank detail change fraud is a well-known attack on AP teams.
What to look for
Never act on the email alone. Verify by calling the supplier on a phone number already on file (not one in the email), get the request in the approved format, have a second person approve the master data change, and watch the first payment closely.
8
How do you reconcile a vendor statement to your ledger?
Why ask it
Statement reconciliations catch missing invoices and errors.
What to look for
Matching invoices, credits and payments line by line, investigating differences (timing, missing invoices, misapplied payments), correcting and documenting, and following up with the vendor.
9
Which red flags in invoices or vendor setups would make you stop and escalate?
Why ask it
Tests fraud awareness.
What to look for
New vendors with only a PO box, vendor addresses matching an employee's, round-number invoices, sequential invoice numbers from one vendor, invoices just under approval limits, urgent payment pressure, and changes in remittance details.
10
Describe a mistake you found in AP, either yours or someone else's. How did you handle it?
Why ask it
Honesty and follow-through matter in finance roles.
What to look for
Owning or reporting it promptly, correcting it properly, telling the right people, and fixing the process cause.

Systems and Communication

AP work runs on ERP systems and spreadsheets, and on steady communication with suppliers and approvers.

11
Which ERP or AP systems have you used, and which Excel functions do you rely on?
Why ask it
Practical system skills determine ramp-up time.
What to look for
Named systems (such as SAP, Oracle, NetSuite, QuickBooks, Sage or an AP automation tool), real tasks performed in them, and Excel skills like lookups, pivot tables, filters and conditional formatting for reconciliations and aged-payables analysis.
12
How do you handle a budget holder who keeps sitting on invoice approvals?
Why ask it
Late approvals cause late payments and damage supplier relationships.
What to look for
Polite reminders with the due date and consequence, using system workflow escalations, involving their manager or the finance lead when needed, and suggesting delegates during absences.
13
A supplier calls angry that they have not been paid. Walk me through the call.
Why ask it
AP specialists deal with suppliers directly.
What to look for
Calm and courteous, verifying the caller, checking the invoice status, explaining honestly (not received, on hold, scheduled), giving a realistic date and following through.
14
How do you prioritise when you have a large invoice backlog at month end?
Why ask it
Volume spikes are normal in AP.
What to look for
Prioritising by due date, discount opportunities, critical suppliers and close deadlines; communicating with the controller about what will and will not be processed; and fixing the cause of the backlog afterwards.

Situational Questions

Short scenarios that mirror real AP decisions.

15
You notice an invoice from a vendor you have never heard of, approved by a manager, for a large round amount. What do you do?
Why ask it
Tests whether the candidate will question an approved but suspicious item.
What to look for
Check the vendor setup and history, look for supporting documents, confirm with the approver directly, and escalate to the AP lead or controller if anything does not add up, before payment.
16
Your manager asks you to release a payment today, but it has not gone through the normal approval. What do you do?
Why ask it
Pressure to bypass controls is a common fraud pattern.
What to look for
Explaining the control, offering to fast-track the proper approval, and refusing to bypass it. Verifying any urgent request through a separate channel.
17
You discover a payment was sent twice to the same supplier last month. What are your next steps?
Why ask it
Tests recovery and process improvement.
What to look for
Confirm the duplicate, contact the supplier for a refund or credit, record it correctly, inform the AP lead, and find why the system checks missed it.
18
Your team is moving to a new AP automation tool. How would you help make the transition work?
Why ask it
Many AP teams are automating invoice capture and approvals.
What to look for
Willingness to test, documenting current process and exceptions, cleaning vendor data before migration, helping colleagues learn, and checking that controls still work after the change.
19
A senior executive submits an expense or invoice that breaks policy. How do you handle it?
Why ask it
AP needs to apply rules consistently.
What to look for
Applying policy the same way, raising it respectfully with the person or their assistant, escalating to the controller if needed, and documenting the outcome.

Running the interview well

1Give a short exercise: a PO, a goods receipt and an invoice with one mismatch, and ask what they would do
2Ask the bank-detail-change question to every AP candidate; the answer shows fraud awareness quickly
3Test Excel with a small vendor statement reconciliation instead of asking them to rate their skills
4Ask about volume and systems in their last role to calibrate experience
5Listen for consistency: good AP candidates follow controls even when someone senior asks them not to

Common questions

What skills does an accounts payable specialist need?

Accuracy, knowledge of the purchase-to-pay process and three-way match, familiarity with an ERP system, solid Excel, awareness of fraud risks, and clear communication with suppliers and approvers.

How do I prepare for an accounts payable interview?

Be ready to explain three-way matching, how you prevent duplicate payments, how you handle bank detail changes, and how you reconcile vendor statements. Prepare one example of an error you caught and one of a supplier problem you resolved, and refresh your Excel lookups and pivot tables.

What is a good accounts payable interview exercise?

A short practical task works well: matching a set of invoices to POs and receipts with deliberate errors, or reconciling a vendor statement. It shows accuracy and process thinking better than self-rated skills.

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