2.2 Payables Ledger Control Account (PLCA) Purpose, Entries, and Sources

2.2 Payables Ledger Control Account (PLCA) Purpose, Entries, and Sources

1. What is the Payables Ledger Control Account?

The Payables Ledger Control Account (PLCA), also referred to as the Trade Payables Control Account, is a control account maintained within the general ledger (nominal ledger). It provides a centralized summary of all credit transactions conducted with the business's suppliers.

Like the RLCA, the PLCA performs a dual function:

1. General Ledger Liability Account: Under the DEAD CLIC rules, amounts owed to credit suppliers are liabilities. The PLCA carries a normal credit balance, reflecting the total trade payables owed by the business at any given point in time. This figure is reported under Current Liabilities on the Statement of Financial Position.
2. Total Control Over the Payables Ledger: It acts as an overarching check on the subsidiary payables ledger. The closing balance of the PLCA should equal the sum of all individual supplier accounts maintained in the payables ledger.

General Ledger vs. Subsidiary Payables Ledger

• The General Ledger: Contains the formal double-entry accounts, including the PLCA, Purchases, VAT Control, and Bank accounts. Transactions are posted as periodic summary batch totals from books of prime entry.
• The Subsidiary Payables Ledger (Memorandum Ledger): Contains individual personal accounts for each supplier (e.g., Apex Raw Materials Ltd, Zenith Logistics). These accounts are memorandum records that track specific invoices, payments, and balances for each vendor, ensuring timely payment and credit terms compliance.

                  [ Purchase Invoice Received from Supplier ]
                                      │
                                      ▼
                         [ Purchases Daybook (PDB) ]
                                      │
            ┌─────────────────────────┴─────────────────────────┐
            ▼                                                   ▼
[ Individual Supplier Accounts ]                   [ Summary Totals Posted to ]
(Subsidiary Payables Ledger - Memo)               (General Ledger Double Entry)
  Cr Individual Supplier Accounts                    Cr Payables Ledger Control Account
                                                     Dr Purchases Account (Net)
                                                     Dr VAT Control Account (Input Tax)

Internal Control and Segregation of Duties

In well-managed organizations, different individuals maintain the books of prime entry, the subsidiary payables ledger, and the general ledger. Reconciling the PLCA against the list of supplier balances provides powerful fraud prevention and error detection:

• It prevents unauthorized or duplicate payments to fictional suppliers.
• It identifies mathematical casting errors in the Purchases Daybook or Cash Book.
• It catches invoices posted to an individual supplier account but omitted from the daybook, or vice versa.

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2. Source Documents and Books of Prime Entry Feeding the PLCA

Transactions posted to the PLCA are derived from the summary totals of books of prime entry. Individual invoices and debit notes are posted to the memorandum payables ledger, while batch totals are posted to the control account.

Detailed Analysis of Ledger Postings

1. Credit Purchases (Purchases Daybook)

When inventory or operational supplies are bought on credit terms, the business incurs a liability to the supplier. The total of the Purchases Daybook reflects the gross amount payable.

• Credit: Payables Ledger Control Account (gross invoice total—increases liability)
• Debit: Purchases Account (net invoice total—increases trading expense)
• Debit: VAT Control Account (input tax reclaimable from HMRC—increases current asset / reduces net VAT payable)

2. Returns Outwards (Purchases Returns Daybook)

When the business returns faulty goods to a supplier or receives an agreed price allowance, a debit note is sent and the supplier issues a credit note. This reduces the liability owed to that supplier.

• Debit: Payables Ledger Control Account (gross credit note total—decreases liability)
• Credit: Purchases Returns / Returns Outwards Account (net total—reduces purchases expense)
• Credit: VAT Control Account (reverses input VAT previously claimed—increases net VAT liability)

3. Payments to Suppliers and Discounts Received (Cash Book)

When payments are released to suppliers via BACS, cheque, or electronic transfer, the trade liability is discharged. Where prompt settlement discounts are agreed, the liability is reduced by the combined total of cash paid and discount received.

• Debit: Payables Ledger Control Account (gross settlement: cash paid + discount received)
• Credit: Bank Account (actual cash outflow from the business bank account)
• Credit: Discounts Received Account (income earned by settling within prompt payment terms)

4. Refunds Received from Suppliers (Cash Book Receipts)

If the business overpays a supplier, or returns goods after paying the invoice in full, the supplier issues a cash refund via bank transfer or cheque.

• Credit: Payables Ledger Control Account (reinstates the balance or clears the negative debit balance)
• Debit: Bank Account (cash inflow into business bank account)

5. Interest Charged by Suppliers (General Journal)

If the business fails to pay a supplier within agreed credit terms, the supplier may levy late payment penalty interest.

• Credit: Payables Ledger Control Account (increases the liability owed to the supplier)
• Debit: Interest Expense / Finance Costs Account (records financing expense in Profit and Loss)

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3. Why Cash Purchases Are NEVER Recorded in the PLCA

A critical principle tested repeatedly in AAT bookkeeping controls assessments is the strict exclusion of cash purchases from the PLCA.

• Cash purchases are transactions where goods or supplies are paid for immediately upon delivery or at the point of sale (e.g., paying for fuel with a business debit card or buying stationery with petty cash).
• In cash purchases, payment is instantaneous: no credit is granted, no trade payable liability is incurred, and no personal account is opened in the payables ledger.
• The double entry for a cash purchase completely bypasses the PLCA:
  • Debit: Purchases / Expense Account (net cost)
  • Debit: VAT Control Account (input tax)
  • Credit: Bank / Cash / Petty Cash Account (gross payment)

Core Exam Rule: Never record cash purchases in the Payables Ledger Control Account. The PLCA is reserved exclusively for transactions involving credit suppliers who supply goods on deferred payment terms.

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4. Balances on the PLCA: Normal Credit vs. Occasional Debit Balances

Because the PLCA represents a liability, its standard opening and closing balance is a credit balance (Balance b/d on the credit side), reflecting trade creditors.

However, the PLCA can also carry an occasional debit balance. On a balance sheet date, both balances must be identified and brought down separately.

What Causes a Debit Balance on the PLCA?

A debit balance on an individual supplier account—and therefore an aggregate debit balance in the PLCA—indicates that a supplier owes money to the business. This arises from:

1. Overpayment to a Supplier: The business mistakenly pays more than the invoice balance (e.g., paying an invoice twice or paying £890 instead of £809).
2. Advance Payments or Upfront Deposits: The business pays a deposit before the supplier has generated the formal tax invoice.
3. Returns Outwards After Full Settlement: Goods are returned and a credit note is received after the original invoice was already paid in full.
4. Discounts Received Claimed Retroactively: The business pays the gross invoice amount and subsequently claims an agreed settlement discount.

When balancing off the PLCA, never offset the debit balance against the credit balance into a single net figure. Carry down both:

• Balance c/d (Credit balance carried down on the debit side, brought down as Credit balance b/d).
• Balance c/d (Debit balance carried down on the credit side, brought down as Debit balance b/d).

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5. Comprehensive PLCA T-Account Layout

The table below details every standard debit and credit entry in the Payables Ledger Control Account along with the corresponding source document and book of prime entry:

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6. Worked Numerical Example: Preparing and Balancing the PLCA

Scenario Data

Vanguard Manufacturing extracted the following summary totals for the month of November 2026:

• 1 November Balances:
  • Credit balance brought forward: £19,650
  • Debit balance brought forward: £240
• Transactions during November:
  • Total credit purchases from Purchases Daybook (including VAT): £32,400
  • Cash purchases paid via company debit card: £3,150
  • Payments made to credit suppliers per Cash Book: £26,800
  • Prompt payment discounts received from suppliers: £620
  • Returns outwards per Purchases Returns Daybook: £1,250
  • Cash refund received from a supplier for an earlier overpayment: £180
  • Interest charged by suppliers on overdue accounts: £75
  • Inter-ledger contra transfer with Receivables Ledger Control Account: £580
  • Supplier debit balance to carry forward on 30 November: £110

Step-by-Step Solution

Step 1: Filter Out Irrelevant Items

• Cash purchases (£3,150) are strictly excluded. They do not affect the trade payables liability.

Step 2: Categorize Entries into Debit and Credit Columns

• Debit Side Entries:

  • Opening debit balance b/d: £240
  • Payments to suppliers (CB Payments): £26,800
  • Discounts received (CB Discounts): £620
  • Purchases returns (PRDB): £1,250
  • Contra transfer (Journal): £580

• Credit Side Entries:

  • Opening credit balance b/d: £19,650
  • Credit purchases (PDB): £32,400
  • Supplier refund received (CB Receipts): £180
  • Interest charged by suppliers (Journal): £75
  • Closing debit balance c/d: £110

Step 3: Compute Totals and the Closing Credit Balancing Figure

\text{Total Credit Entries} &= \pounds19,650 + \pounds32,400 + \pounds180 + \pounds75 + \pounds110 = \mathbf{\pounds52,415} \\ \text{Subtotal of Known Debits} &= \pounds240 + \pounds26,800 + \pounds620 + \pounds1,250 + \pounds580 = \pounds29,490 \\ \text{Closing Credit Balance (Balance c/d)} &= \pounds52,415 - \pounds29,490 = \mathbf{\pounds22,925} \end{aligned}$$ ### Completed General Ledger T-Account **Payables Ledger Control Account** | Date | Details | £ | Date | Details | £ | | :--- | :--- | :--- | :--- | :--- | :--- | | Nov 1 | Balance b/d (debit balance) | 240 | Nov 1 | Balance b/d (credit balance) | 19,650 | | Nov 30 | Bank (payments to suppliers) | 26,800 | Nov 30 | Purchases Daybook (credit purchases)| 32,400 | | Nov 30 | Discounts received | 620 | Nov 30 | Bank (refund from supplier) | 180 | | Nov 30 | Purchases Returns Daybook | 1,250 | Nov 30 | Interest expense | 75 | | Nov 30 | Contra (RLCA transfer) | 580 | Nov 30 | Balance c/d (debit balance) | 110 | | Nov 30 | Balance c/d (credit balance) | 22,925 | | | | | | **Total** | **52,415** | | **Total** | **52,415** | | Dec 1 | **Balance b/d** | **110** | Dec 1 | **Balance b/d** | **22,925** | At 1 December, the net trade payables figure of £22,815 (£22,925 credit less £110 debit) will be compared directly against the list of supplier balances extracted from the subsidiary payables ledger.