The accounts payable process is the workflow a business uses to receive, review, record, approve and pay the money it owes to suppliers and other vendors.
For a new bookkeeper, accounts payable can seem like a simple job: receive an invoice and pay it. In practice, there are several important steps between those two points. The invoice needs to be checked, coded to the correct accounts, entered into the accounting system, approved, scheduled for payment, matched with payment records and later reconciled.
A mistake anywhere in that process can lead to duplicate payments, incorrect expenses, missed due dates, inaccurate supplier balances or unreliable financial reports.
That is why accounts payable is a core practical bookkeeping skill.
What Is Accounts Payable?
Accounts payable represents amounts a business owes to suppliers or vendors for goods and services it has received but has not yet paid for.
For example, suppose a business receives a $2,000 invoice from an IT company.
The IT service has already been provided, but payment is due in 30 days.
The business now has an obligation to pay $2,000.
That amount is normally recorded in Accounts Payable until the invoice is paid.
A simplified entry could be:
| Account | Debit | Credit |
|---|---|---|
| IT Expense | $2,000 | |
| Accounts Payable | $2,000 |
When payment is later made:
| Account | Debit | Credit |
|---|---|---|
| Accounts Payable | $2,000 | |
| Bank | $2,000 |
The first entry creates the liability.
The second removes the liability when payment is made.
Understanding this distinction is important because accounts payable is not simply an expense account. It is generally a liability representing amounts owed.
If you want to understand how payables differ from customer receivables, see our detailed guide to Accounts Payable vs Accounts Receivable.
What Is the Accounts Payable Process?
The accounts payable process is the complete workflow used to manage supplier invoices and payments.
A basic AP process usually follows this path:
Purchase or Service → Invoice Received → Invoice Reviewed → Account Coding → Approval → Invoice Recorded → Payment → Reconciliation
The exact process depends on the business.
A small company may have one bookkeeper handling most of these steps.
A larger company may have separate employees responsible for:
- Purchasing
- Receiving
- Invoice processing
- Approval
- Payment
- Reconciliation
Regardless of the company size, the objective is similar:
Make sure legitimate supplier invoices are recorded accurately and paid correctly.
A strong AP workflow should help answer four basic questions:
Do we actually owe this money?
Is the invoice amount correct?
Has the transaction been recorded in the correct accounts?
Has the supplier been paid once—and only once?
Why Is the Accounts Payable Process Important?
A reliable accounts payable workflow helps protect both the accuracy of the books and the company’s cash.
It helps prevent duplicate payments
Suppose the same supplier invoice is entered twice.
If there is no review process, the business might pay both entries.
A well-organized AP process checks invoice numbers, supplier names, amounts and existing records before payment.
It improves expense accuracy
Supplier invoices often affect:
- Expenses
- Inventory
- Equipment
- Prepaid items
- Taxes
- Accounts payable
Incorrect coding can affect financial reporting.
It helps businesses monitor what they owe
Management needs to know:
- Which invoices are outstanding
- When payments are due
- Which suppliers need to be paid
- How much cash will be required
Accurate AP records support this planning.
It improves supplier relationships
Late or incorrect payments can create unnecessary problems with suppliers.
A structured system helps keep invoice and payment information organized.
It supports period-end bookkeeping
Accounts payable balances appear in the general ledger and eventually the trial balance.
If AP records are inaccurate, the financial reporting process can also be affected.
8 Steps in the Accounts Payable Process
Step 1: Receive the Supplier Invoice
The accounts payable process usually begins when the business receives an invoice.
Invoices may arrive by:
- Supplier portal
- Accounting software
- Electronic invoicing system
The invoice should contain enough information to understand the transaction.
Typical information includes:
- Supplier name
- Invoice number
- Invoice date
- Description
- Quantity
- Amount
- Taxes where applicable
- Payment terms
- Payment instructions
The invoice should be saved in an organized way so it can be reviewed and retrieved later.
Simply receiving an invoice does not mean it should immediately be paid.
It first needs verification.
Step 2: Verify the Invoice
The next step is to determine whether the invoice is legitimate and accurate.
A bookkeeper or AP employee may check:
- Is this a real supplier?
- Did the business order the goods or services?
- Were the goods or services received?
- Does the amount make sense?
- Is the invoice number already in the system?
- Are quantities and prices reasonable?
- Are payment terms clear?
- Is appropriate supporting documentation available?
Suppose a supplier sends an invoice for $4,800, but the approved purchase was only $4,200.
The difference should be investigated before payment.
Similarly, if invoice number INV-1050 already exists in the accounting system, entering it again could create a duplicate payable.
This verification step is one of the most important accounts payable procedures.
Step 3: Match Supporting Documents
Depending on the organization, supplier invoices may be compared with other records.
These can include:
- Purchase orders
- Receiving documents
- Contracts
- Service agreements
- Delivery records
A common AP control is sometimes called matching.
For example:
Purchase Order: Business ordered 100 units.
Receiving Record: Business received 100 units.
Supplier Invoice: Supplier billed for 100 units.
If all three agree, the invoice has stronger support for processing.
For service businesses, the supporting documents may instead be contracts, engagement letters, timesheets or approval emails.
The exact process depends on the organization.
Accounting students should understand the principle rather than assume every company uses identical paperwork.
Step 4: Code the Invoice to the Correct Accounts
Once the invoice has been verified, it needs to be assigned to the correct accounting accounts.
This is where knowledge of the chart of accounts becomes important.
Suppose a business receives these invoices:
Office rent: $3,000
Laptop: $2,000
Advertising: $800
These should not automatically be recorded in the same account.
The bookkeeper must determine the appropriate accounting classification.
Possible accounts could include:
- Rent Expense
- Computer Equipment
- Advertising Expense
Other information may also need to be considered, such as applicable sales-tax treatment or departmental coding.
Good invoice coding helps ensure that financial reports contain meaningful information.
A bank reconciliation can still balance even when an invoice was coded to the wrong expense account, which is why correct classification requires accounting judgment.
Step 5: Obtain Invoice Approval
Many businesses require invoices to be approved before payment.
Approval helps confirm that an authorized person accepts the expense and payment.
For example:
A marketing manager may approve advertising invoices.
An operations manager may approve equipment or supplier costs.
A business owner may approve larger payments.
Approval procedures can vary by:
- Invoice amount
- Department
- Supplier
- Expense type
- Business size
A company might require one approval for smaller invoices and additional authorization for large payments.
The important control principle is that invoices should not be paid simply because they arrived.
Someone with appropriate authority should confirm the expense where the organization’s procedures require it.
Step 6: Record the Invoice in the Accounting System
After review and approval, the invoice can be entered into the accounting software.
A simplified example:
Supplier invoice for office rent:
Amount: $2,500
Possible entry:
| Account | Debit | Credit |
|---|---|---|
| Rent Expense | $2,500 | |
| Accounts Payable | $2,500 |
The accounting system should normally capture details such as:
- Supplier
- Invoice number
- Invoice date
- Due date
- Expense or asset account
- Amount
- Applicable taxes
- Description or memo
Accurate data entry matters.
An incorrect due date may lead to a late payment.
An incorrect invoice number may make duplicate detection more difficult.
An incorrect amount creates an inaccurate supplier balance.
And an incorrect account changes financial reporting.
Step 7: Schedule and Make the Payment
Once the invoice becomes due, payment can be prepared.
Businesses may pay suppliers using methods such as:
- Electronic transfer
- Bank payment
- Cheque
- Credit card
- Other approved methods
Before payment is released, the business should confirm:
- Supplier
- Invoice being paid
- Payment amount
- Payment date
- Approval
- Payment instructions
Special care should be taken when supplier payment information changes.
A request to suddenly change banking instructions should follow the organization’s verification procedures rather than being accepted without review.
Once the payment is completed, the payable should be cleared appropriately from the books.
For example:
| Account | Debit | Credit |
|---|---|---|
| Accounts Payable | $2,500 | |
| Bank | $2,500 |
The supplier liability decreases because the business no longer owes that invoice.
Step 8: Reconcile and Review Accounts Payable
The AP process should not end when payment is sent.
The accounting records should also be reviewed and reconciled.
This can involve comparing:
- Supplier statements
- Accounts payable subsidiary records
- General ledger balances
- Payment records
- Bank activity
- Outstanding invoices
Suppose a supplier statement shows:
Balance owing: $5,000
But the accounting system shows:
Balance owing: $3,500
The $1,500 difference should be investigated.
Possible reasons include:
- Missing invoice
- Missing credit note
- Payment not recorded
- Duplicate invoice
- Payment posted incorrectly
- Timing difference
AP reconciliation helps make sure the liability recorded in the accounting system is supported by underlying supplier records.
Practical Accounts Payable Process Example
Consider a small consulting business.
On September 5, it receives an invoice from a software provider.
Invoice amount: $1,200
Payment terms: 30 days
Step 1: Invoice received
The invoice arrives by email and is saved.
Step 2: Invoice verified
The bookkeeper confirms that the company uses the service.
Step 3: Supporting documentation reviewed
The invoice agrees with the service agreement.
Step 4: Account coded
The bookkeeper selects:
Software Expense
Step 5: Approval obtained
The appropriate manager approves the invoice.
Step 6: Invoice entered
The accounting entry is:
| Account | Debit | Credit |
|---|---|---|
| Software Expense | $1,200 | |
| Accounts Payable | $1,200 |
Step 7: Payment made
The invoice is paid for $1,200.
Entry:
| Account | Debit | Credit |
|---|---|---|
| Accounts Payable | $1,200 | |
| Bank | $1,200 |
Step 8: Reconciliation
The bookkeeper confirms:
- Supplier invoice = $1,200
- Payment = $1,200
- Supplier balance = $0
- AP balance updated correctly
- Bank payment recorded
This is a simplified example, but it shows how the complete accounts payable process connects documentation, accounting entries and payment.
Accounts Payable Journal Entries
Bookkeeping students should understand the journal entries behind AP transactions.
Recording an expense purchased on credit
Suppose office supplies worth $600 are purchased on credit.
| Account | Debit | Credit |
|---|---|---|
| Office Supplies / Expense | $600 | |
| Accounts Payable | $600 |
Accounts payable increases.
Paying the supplier
Later, the $600 invoice is paid.
| Account | Debit | Credit |
|---|---|---|
| Accounts Payable | $600 | |
| Bank | $600 |
Accounts payable decreases.
Recording equipment purchased on credit
Suppose the business purchases equipment for $5,000 on credit.
The debit may go to an asset account rather than a normal operating expense.
| Account | Debit | Credit |
|---|---|---|
| Equipment | $5,000 | |
| Accounts Payable | $5,000 |
This example shows why understanding account classification is important.
AP does not always mean:
Debit Expense / Credit Accounts Payable
The debit depends on what the business received.
Accounts Payable Workflow and Key Documents
A strong accounts payable workflow depends on clear supporting documentation.
Important documents may include:
- Supplier invoices
- Purchase orders
- Receiving reports
- Contracts
- Credit notes
- Approval records
- Payment confirmations
- Supplier statements
These documents help create an audit trail.
For example:
Invoice → Approval → Accounting Entry → Payment → Bank Record
Someone reviewing the transaction later should be able to understand:
- Why the payment was made
- Who approved it
- What was purchased
- Which account was used
- When payment occurred
Clear records are especially helpful when working with multiple suppliers and large transaction volumes.
Accounts Payable vs Accounts Receivable
Accounts payable and accounts receivable are often confused by accounting beginners.
The difference is straightforward.
| Accounts Payable | Accounts Receivable |
|---|---|
| Money the business owes | Money customers owe the business |
| Usually a liability | Usually an asset |
| Related to supplier invoices | Related to customer invoices |
| Business makes payment | Business receives payment |
| AP team tracks vendor balances | AR team tracks customer balances |
An easy way to remember:
AP = We need to PAY.
AR = We need to RECEIVE.
For the complete comparison, read Accounts Payable vs Accounts Receivable: Complete Canadian Career Guide.
Our next article will go deeper into the accounts receivable process itself rather than repeating this comparison.
How Accounts Payable Connects to the General Ledger
Accounts payable is normally represented as a liability account in the general ledger.
When supplier invoices are entered:
Accounts Payable increases.
When suppliers are paid:
Accounts Payable decreases.
Imagine:
Opening AP balance: $10,000
New supplier invoices: +$8,000
Payments: −$6,000
Ending AP:
$12,000
That ending balance eventually appears in the company’s trial balance.
If the AP ledger does not accurately reflect supplier invoices and payments, the trial balance may contain an unreliable liability amount.
This is why AP reconciliation forms part of proper period-end bookkeeping.
How Accounts Payable Connects to the Trial Balance
The trial balance summarizes ledger account balances.
Suppose it includes:
Accounts Payable — $24,500 Credit
A bookkeeper should not simply assume that $24,500 is correct.
The balance may need to be reviewed against:
- Outstanding invoices
- Supplier statements
- Payment records
- Credit notes
- Aging reports
If an invoice was entered twice, AP could be overstated.
If an invoice was never entered, AP could be understated.
If a payment was posted incorrectly, the supplier balance may still look unpaid.
The trial balance tells you the account balance.
The AP reconciliation helps determine whether that balance is supported.
Accounts Payable and Bank Reconciliation
Supplier payments eventually affect the company’s bank account.
This creates a direct connection between AP and bank reconciliation.
For example:
An invoice is entered:
Debit Expense $2,000
Credit Accounts Payable $2,000
Later it is paid:
Debit Accounts Payable $2,000
Credit Bank $2,000
The payment should eventually appear on the bank statement.
During bank reconciliation, the bookkeeper compares the accounting records with bank activity.
Problems may be discovered, such as:
- Payment entered twice
- Payment recorded for wrong amount
- Payment not cleared
- Payment missing from books
- Wrong bank account used
This illustrates why bookkeeping processes should be learned together rather than separately.
Accounts Payable and Adjusting Journal Entries
Some period-end expenses may relate to goods or services already received even though a normal supplier invoice has not yet been entered.
Depending on the accounting circumstances, an accrual may be required.
For example, services may have been received before month-end but the invoice will arrive later.
That connects accounts payable and accrued liabilities with period-end accounting.
You can learn more about that process in our guide to Adjusting Journal Entries.
Bookkeeping students should understand an important distinction:
Normal supplier invoice processing and period-end accrual adjustments are related concepts, but they are not always the same accounting procedure.
Accounts Payable Internal Controls
Internal controls help reduce errors and inappropriate payments.
The exact controls depend on the size and structure of the organization.
Common principles can include:
Approval controls
Invoices are approved by an authorized person.
Duplicate invoice checks
Invoice numbers and amounts are reviewed before entry or payment.
Separation of responsibilities
Where practical, one individual may not control every stage of:
Supplier creation → Invoice entry → Approval → Payment → Reconciliation
Supplier verification
New suppliers and changes to supplier information are reviewed.
Payment authorization
Payments above certain limits may require additional approval.
Documentation
Invoices and supporting records are retained and organized.
Reconciliation
Supplier and AP balances are periodically reviewed.
The purpose of these controls is not to make accounts payable unnecessarily complicated.
It is to create a reliable and reviewable process.
Accounts Payable Aging
An accounts payable aging report organizes unpaid supplier invoices according to how long they have been outstanding.
A simplified example might look like:
| Supplier | Current | 1–30 Days | 31–60 Days | Total |
|---|---|---|---|---|
| Supplier A | $2,000 | $2,000 | ||
| Supplier B | $1,500 | $1,500 | ||
| Supplier C | $800 | $800 | ||
| Total | $2,000 | $1,500 | $800 | $4,300 |
This report can help a business review:
- Upcoming payments
- Overdue balances
- Old invoices
- Supplier disputes
- Cash requirements
A bookkeeper should investigate invoices that remain outstanding for unusually long periods.
There may be a valid reason, but the balance should be understood.
What Is Accounts Payable Automation?
Accounts payable automation uses software to reduce some manual AP tasks.
Depending on the system, automation may assist with:
- Invoice capture
- Data extraction
- Approval routing
- Duplicate detection
- Payment workflows
- Document storage
- Reporting
However, automation does not eliminate the need to understand accounts payable.
A system can process information efficiently while still producing incorrect results if:
- The supplier is wrong
- The expense account is wrong
- Approval is missing
- The invoice is duplicated
- Payment details are incorrect
The bookkeeper still needs accounting knowledge and review skills.
This is one reason practical software training should be combined with accounting fundamentals.
For a broader look at tools used in the profession, see Best Accounting Software in Canada.
Common Accounts Payable Process Mistakes
1. Entering duplicate invoices
Check invoice numbers and existing supplier transactions before creating a new payable.
2. Paying without proper approval
Follow the organization’s authorization process.
3. Coding invoices to the wrong account
Understand what the business actually purchased.
4. Entering the wrong due date
Payment terms affect when invoices become due.
5. Paying the wrong amount
Compare the payment with the approved invoice.
6. Ignoring supplier credits
Credit notes can reduce amounts owed and should be recorded properly.
7. Leaving old invoices unresolved
Long-outstanding balances should be investigated.
8. Failing to reconcile supplier balances
The accounting system and supplier information should be reviewed for differences.
9. Using a miscellaneous account when unsure
Do not hide classification uncertainty in a generic account.
Investigate the transaction.
10. Trusting software without reviewing the accounting
Automation helps with efficiency, not professional judgment.
How to Manage Accounts Payable More Effectively
A good AP process begins with consistency.
Useful habits include:
- Enter invoices promptly
- Use consistent supplier names
- Record invoice numbers correctly
- Check for duplicates
- Apply clear account coding
- Maintain approval documentation
- Review due dates
- Reconcile supplier statements
- Review AP aging regularly
- Investigate old balances
The goal is not only to pay invoices.
The goal is to maintain accurate liabilities and controlled cash payments.
Skills Needed for Accounts Payable Work
Someone working in an entry-level AP or bookkeeping role may use several practical skills.
These include:
- Invoice processing
- Account coding
- Supplier communication
- Accounts payable entries
- Spreadsheet skills
- Accounting software
- Payment processing
- Reconciliation
- Document organization
- Attention to detail
- Basic financial statement understanding
AP also connects with other bookkeeping areas such as:
Chart of Accounts → Journal Entries → Accounts Payable → Bank Reconciliation → Trial Balance → Adjusting Entries
That is why understanding the complete bookkeeping workflow is valuable.
For a broader view, read Full-Cycle Bookkeeping in Canada.
Why Accounts Payable Is a Useful Skill for Accounting Beginners
The accounts payable process gives beginners practical exposure to real business transactions.
Instead of working only with accounting theory, AP requires you to understand actual documents and decisions.
For each invoice, you may need to determine:
What did the company purchase?
Which account should be used?
Is the amount correct?
Has the invoice already been entered?
Who should approve it?
When should it be paid?
Has the payment cleared?
Those questions develop bookkeeping judgment.
Students who want practical experience with accounts payable, accounts receivable, bank reconciliation, journal entries and accounting software can explore the Get Trained Get Hired Practical Bookkeeping Course.
Frequently Asked Questions About the Accounts Payable Process
What is the accounts payable process?
The accounts payable process is the workflow used to receive, verify, record, approve and pay supplier invoices. It also includes reviewing and reconciling outstanding vendor balances.
What are the main steps in accounts payable?
A typical process includes receiving the invoice, verifying it, reviewing supporting documents, coding the transaction, obtaining approval, recording the invoice, making payment and reconciling the supplier account.
What is accounts payable in simple words?
Accounts payable is money a business owes to suppliers for goods or services already received but not yet paid for.
Is accounts payable an asset or liability?
Accounts payable is generally recorded as a liability because it represents an amount the business owes.
What is an accounts payable example?
If a business receives a $1,000 supplier invoice today but will pay it next month, the $1,000 is recorded in accounts payable until payment is made.
What is an accounts payable workflow?
An accounts payable workflow is the sequence an invoice follows through the organization, such as receipt, verification, coding, approval, entry, payment and reconciliation.
What is the difference between accounts payable and accounts receivable?
Accounts payable represents money the business owes suppliers. Accounts receivable represents money customers owe the business.
What happens when an accounts payable invoice is paid?
The accounts payable liability is reduced, and the bank or other payment account is reduced by the payment amount.
Why is accounts payable reconciliation important?
Reconciliation helps confirm that supplier invoices, payments, credits and accounting balances agree. It can identify missing invoices, duplicate entries, incorrect payments and other discrepancies.
Final Thoughts
The accounts payable process is much more than paying supplier bills.
A reliable AP workflow connects:
Invoice receipt → Verification → Account coding → Approval → Recording → Payment → Reconciliation
Every stage affects the quality of the accounting records.
For bookkeeping beginners, three principles are especially important:
Verify before recording.
Understand before coding.
Reconcile after payment.
When these habits become part of the bookkeeping process, supplier balances are easier to manage and financial records become more reliable.
Accounts payable also connects directly with the chart of accounts, bank reconciliation, trial balance and adjusting journal entries.
If you want hands-on experience with these connected bookkeeping processes, explore the Get Trained Get Hired Bookkeeping Course.
