Introduction to Cash and Bank Accounts

TL;DR

Cash and bank accounts track money flowing into and out of your business. Understanding these helps you manage your finances and ensure your records match the bank's. The bank reconciliation statement is a crucial tool for spotting and fixing differences between your books and the bank's.

1. The Mental Model

Think of your cash account as your personal wallet and your bank account as your bank statement. Both show how much money you have, but they might not always match exactly at any given moment.

2. The Core Material

In accounting, a cash account records all transactions involving physical cash (received or paid) and money held in your bank accounts. When we talk about "cash" in accounting, it usually includes bank balances too.

Your bank account records are what the bank says you have. This is reflected in your bank statements.

You keep your own set of books – a cash book (or cash ledger) – which records every time money comes in or goes out of your business, whether it's actual cash or a bank transfer. The bank also keeps records of these transactions from their perspective.

Ideally, the balance in your cash book (specifically, the bank column if you have one) should match the balance on your bank statement. However, they often don't match immediately for several reasons:

Timing Differences

This is the most common reason for discrepancies. It's not that someone made a mistake, but rather that one party (you or the bank) recorded a transaction before the other.

• Unpresented Cheques (Outstanding Cheques): You write and issue a cheque to a supplier. You immediately record this as money leaving your bank account in your cash book. However, the supplier might not deposit it for a few days, or the bank might take time to process it. Until the bank processes it, it won't show on your bank statement.
• Deposits in Transit (Outstanding Deposits): You receive cash or a cheque and deposit it into your bank. You immediately record this as money coming into your bank account in your cash book. However, if you deposit it late in the day or over a weekend, the bank might only process it the next business day. It won't appear on your bank statement until the bank processes it.

Other Differences

Sometimes, transactions appear on one record but not the other because one party isn't aware of them, or there are errors.

• Bank Charges/Fees: The bank often deducts service charges or fees directly from your account. You might only find out about these when you receive your bank statement. You'll need to update your cash book to reflect these.
• Direct Debits/Standing Orders: You might have authorised automatic payments (like rent, utilities) from your bank account. The bank will deduct these as they fall due. You might only record them in your cash book once you see them on your statement.
• Interest Received: The bank might pay interest on your account balance. This will appear on your bank statement first, and you'll need to add it to your cash book.
• Dishonoured Cheques (NSF - Non-Sufficient Funds): A customer pays you with a cheque, you deposit it, and record it in your cash book. The bank initially credits your account, but later finds the customer's account has insufficient funds and "bounces" the cheque, deducting the amount back from your account. You'll see this on your bank statement and need to remove it from your cash book.
• Errors: Either you or the bank could make a mistake, like recording a wrong amount, or depositing money into the wrong account.

The purpose of a bank reconciliation statement is to identify all these differences and explain why your cash book balance doesn't match the bank statement balance. It's a key internal control that helps detect errors, identify unauthorised transactions, and ensure accurate financial reporting.

3. Worked Example

Let's say your internal cash book (bank column) shows a balance of $5,000 as of October 31st. Your bank statement for the same date shows a balance of $5,500. There's a $500 difference.

Here's how you might explain it:

1. Deposits in Transit (Outstanding Deposits): You deposited a customer cheque for $700 on October 31st, which you recorded in your cash book. The bank, however, only processed it on November 2nd. This deposit is in your cash book but not yet on the bank statement.
2. Unpresented Cheques (Outstanding Cheques): You wrote cheque #123 for $200 to your supplier on October 29th. You recorded this payment in your cash book. The supplier hasn't cashed it by October 31st. This payment is in your cash book but not yet on the bank statement.
3. Bank Charges: The bank charged you $50 for service fees, which appeared on your bank statement but you haven't recorded in your cash book yet.
4. Interest Received: The bank paid you $50 in interest, which appeared on your bank statement but you haven't recorded in your cash book yet.

To reconcile:

• Start with Bank Statement Balance: $5,500

  • Add: Deposits in Transit ($700) = $6,200 (Now the bank statement shows funds you've deposited that they haven't processed yet)
  • Subtract: Unpresented Cheques ($200) = $6,000 (Now the bank statement reflects cheques you've written that haven't cleared yet)
  • Adjusted Bank Balance: $6,000

• Start with Cash Book Balance: $5,000

  • Subtract: Bank Charges ($50) = $4,950 (You now account for the bank's deduction)
  • Add: Interest Received ($50) = $5,000 (You now account for the bank's interest payment)
  • Wait! There's still a difference! What happened? Ah, we need to also consider the deposit in transit again. And the unpresented cheques. This is why you adjust the cash book for items the bank already knew and then adjust the bank balance for items you knew but the bank hasn't processed.

Let's re-do the adjustments more clearly:

Bank Statement Reconciliation as of Oct 31st

The issue here is that I made interest received and bank charges "not in cash book" in the table but then adjusted bank statement. That's a common confusion point!

Correct approach:

Reconciliation Statement as of Oct 31st

Okay, let's redefine the scenario for a perfect match.

Scenario:
* Cash Book Balance: $5,000
* Bank Statement Balance: $5,500

Differences:
1. Deposits in Transit: $700 (You recorded, bank hasn't)
2. Unpresented Cheques: $200 (You recorded, bank hasn't presented)
3. Bank Charges: $150 (Bank recorded, you haven't)
4. Interest Received: $150 (Bank recorded, you haven't)

Reconciliation:

Party A: Bank Side Adjustments (Starting with Bank Statement Balance)

• Balance as per Bank Statement: $5,500
• Add: Deposits in Transit (money you deposited, bank hasn't processed) : $700
• Less: Unpresented Cheques (cheques you wrote, bank hasn't paid yet) : ($200)
• Adjusted Bank Balance: $5,500 + $700 - $200 = $6,000

Party B: Cash Book Side Adjustments (Starting with Cash Book Balance)

• Balance as per Cash Book: $5,000
• Add: Interest Received (bank gave you, you hadn't recorded) : $150
• Less: Bank Charges (bank took out, you hadn't recorded) : ($150)
• Adjusted Cash Book Balance: $5,000 + $150 - $150 = $5,000

Still don't match! The issue is with my manual construction of the numbers. My apologies!

Let's use a simpler, truly reconcilable example:

Example:
* Your Cash Book shows a balance of $1,000.
* Your Bank Statement shows a balance of $800.

Discrepancies identified:
1. You deposited $300, which is in your Cash Book but not yet on the Bank Statement (Deposit in Transit).
2. Your bank statement shows $100 in bank charges, which you hadn't recorded in your Cash Book.

Bank Reconciliation Statement as of [Date]: