To recalculate a trial balance after corrections, change only the balances the correcting entries touch, then add each column again. Not every correction changes the totals, and some change only one column. This lesson follows errors that do not break equality within trial balance and error limits.
Exam questions can give a trial balance and a list of corrections, then ask for the revised totals or a corrected balance.
How do you work out the effect of a correction?
For each correction, write the correcting entry, then ask what happens to the balance of each account in it. A debit increases a debit balance and reduces a credit balance. A credit does the reverse.
Then ask whether the two sides of the correction change each trial balance column equally.
How to recalculate, step by step
- Write the correcting entry as a debit and a credit.
- Adjust each account’s balance in a table: original, correction, corrected.
- Copy unchanged balances across.
- Add both corrected columns.
- Check the columns agree. If they do not, recheck the corrections.
Worked example
Sinar Bakery extracts this trial balance and the columns disagree.
| Account | Debit (RM) | Credit (RM) |
|---|---|---|
| Premises | 30,000 | |
| Equipment | 9,000 | |
| Inventory | 2,400 | |
| Trade receivables | 3,100 | |
| Bank | 4,150 | |
| Purchases | 15,200 | |
| Wages | 7,800 | |
| Electricity | 1,350 | |
| Drawings | 5,000 | |
| Capital | 46,000 | |
| Sales | 28,300 | |
| Trade payables | 3,150 | |
| Totals | 78,000 | 77,450 |
The difference is RM 550, with the credit column short. Three errors are found.
Error 1: a RM 550 receipt from a customer was debited to Bank, but the credit to receivables was omitted. Correction: credit Trade receivables RM 550, so receivables fall from 3,100 to 2,550. The debit column falls by 550 to 77,450 and now equals the credit column.
Error 2: RM 240 of electricity was debited to Wages. Correction: debit Electricity 240, credit Wages 240. Wages become 7,800 − 240 = 7,560 and electricity becomes 1,350 + 240 = 1,590. Both are debit balances, so the debit total does not change.
Error 3: a credit purchase of RM 900 was left out of both books. Correction: debit Purchases 900, credit Trade payables 900. Purchases become 16,100 and payables become 3,150 + 900 = 4,050. Each column rises by 900.
| Account | Debit (RM) | Credit (RM) |
|---|---|---|
| Premises | 30,000 | |
| Equipment | 9,000 | |
| Inventory | 2,400 | |
| Trade receivables | 2,550 | |
| Bank | 4,150 | |
| Purchases | 16,100 | |
| Wages | 7,560 | |
| Electricity | 1,590 | |
| Drawings | 5,000 | |
| Capital | 46,000 | |
| Sales | 28,300 | |
| Trade payables | 4,050 | |
| Totals | 78,350 | 78,350 |
Check: debit 30,000 + 9,000 + 2,400 + 2,550 + 4,150 + 16,100 + 7,560 + 1,590 + 5,000 = 78,350. Credit 46,000 + 28,300 + 4,050 = 78,350. The original difference of RM 550 is about 0.7% of the debit total of 78,000, small in size but enough to fail the check.
The mistake to watch for
A frequent slip is to reach agreement by a route that does not match the error.
Mistaken correction for Error 1: reduce Bank by RM 550 so the debit column falls to 77,450.
The columns agree, but the bank balance is now wrong and receivables are still overstated.
Totals can agree through the wrong correction. The right check is to ask whether the correcting entry repairs the actual double entry: here the missing credit belongs to receivables, not to bank.
Check yourself
Try these on paper, then open each answer.
1. A trial balance shows debits of RM 20,600 and credits of RM 20,100. A cash sale of RM 500 was debited to Bank, but the credit to Sales was missed. What are the corrected totals?
Show answer
Credit Sales RM 500. The credit column becomes 20,100 + 500 = RM 20,600. The debit column stays at 20,600, so both are RM 20,600.
2. A trial balance agrees at RM 36,400. Rent of RM 1,200 was debited to the rates account, and a credit purchase of RM 800 was omitted from both books. What are the new totals?
Show answer
The rent correction moves RM 1,200 between two debit balances, so the totals do not change. The omission adds RM 800 to both columns. Both totals become 36,400 + 800 = RM 37,200.
3. A receipt of RM 420 from a customer was debited to receivables and credited to bank. The bank account had a debit balance, and the trial balance agreed at RM 52,000. Give the correcting entry and the new totals.
Show answer
Debit Bank RM 840 and credit Trade receivables RM 840. Bank rises by 840 and receivables fall by 840, both debit balances, so the debit total stays the same. Both totals remain RM 52,000.
Where this leads next
Once you can rebuild the totals confidently, move on to avoiding the treatment of agreement as proof of accuracy and then the trial balance practice set. The percentage-base explorer helps you see a difference as a share of the total, and the trial-balance and error detective lets you trace a correction.
A layout that records every change is easy to describe and hard to keep up under pressure. A teacher in online one-to-one Accounting tuition can watch you work and refine your layout until it holds.