A bank reconciliation statement is a financial document that compares a company’s internal cash records (the cash book) with the bank’s records (the bank statement) to identify and explain any differences between the two. It’s prepared at regular intervals—usually monthly—to ensure the books are accurate and no errors or fraud have gone undetected. In 2026, many businesses use automated software to streamline this process, but the fundamental goal remains the same: ensuring every cent is accounted for.
The short version: your books say one number, the bank says another. A bank reconciliation explains exactly why, and confirms that both are ultimately correct once adjustments are made.
Why It Matters
Without regular reconciliation, errors accumulate silently. A misposted transaction, a bounced check that wasn’t recorded, or an unauthorized charge can sit undetected for months. Reconciling the bank statement monthly catches these problems while the trail is still fresh.
Key reasons businesses do it:
- Detects errors in both the cash book and bank records
- Catches unauthorized transactions or bank fraud early
- Ensures the balance sheet cash figure is accurate
- Required by auditors and essential for financial controls
The Main Reasons Bank and Book Balances Differ
|
Difference Type |
What It Means |
|---|---|
|
Outstanding checks |
Written and recorded in books; not yet cleared the bank |
|
Deposits in transit |
Recorded in books; not yet credited by the bank |
|
Bank charges / fees |
Charged by bank; not yet recorded in cash book |
|
Interest earned |
Credited by bank; not yet recorded in books |
|
NSF checks |
Bounced check returned by bank; needs to be reversed in books |
|
Bank errors |
Incorrect entry made by the bank |
|
Book errors |
Incorrect entry made by the company |
How to Prepare a Bank Reconciliation Statement
Step 1: Gather both documents
Get the bank statement for the period and your internal cash book (general ledger cash account) for the same period.
Step 2: Start with the bank balance
Begin with the closing balance shown on the bank statement.
Step 3: Add deposits in transit
These are deposits you’ve recorded but the bank hasn’t processed yet. Add them to the bank balance.
Step 4: Subtract outstanding checks
These are checks you’ve issued and recorded but haven’t cleared the bank. Subtract them.
Step 5: Arrive at the adjusted bank balance
This is your reconciled bank figure.
Step 6: Start with the book balance
Now take the closing balance from your cash book.
Step 7: Add bank credits not yet recorded
This includes interest earned, direct deposits, or credits shown on the bank statement that aren’t yet in your books.
Step 8: Subtract bank charges not yet recorded
Include service fees, NSF returned check charges, or other bank debits not yet in your books.
Step 9: Arrive at the adjusted book balance
If the reconciliation is correct, the adjusted bank balance and the adjusted book balance should match.
Simple Bank Reconciliation Example
|
Item |
Amount |
|---|---|
|
Bank statement closing balance |
$12,400 |
|
Add: Deposits in transit |
+$1,200 |
|
Less: Outstanding checks |
-$950 |
|
Adjusted bank balance |
$12,650 |
|
Cash book closing balance |
$12,900 |
|
Add: Bank interest earned |
+$50 |
|
Less: Bank service fee |
-$300 |
|
Adjusted book balance |
$12,650 ✅ |
Both sides arrive at $12,650 – the reconciliation is complete.
Common Errors to Watch For
|
Error |
Where It Appears |
How to Fix |
|---|---|---|
|
Transposition error |
Books or bank |
Compare individual entries; correct the wrong figure |
|
Duplicate entry |
Books |
Reverse the duplicate transaction |
|
Missed check clearance |
Bank side |
Verify with payee; reissue if necessary |
|
Unrecorded bank fee |
Books |
Journal entry to record the charge |
|
Fraudulent transaction |
Bank statement |
Escalate immediately to management and bank |
The Bottom Line
A bank reconciliation statement is one of the most important internal controls a business can maintain. It takes 30-60 minutes a month for most small businesses – and that time investment routinely catches errors and discrepancies that would otherwise compound into serious problems. Make it a monthly non-negotiable.