

Error of Omission and Commission: Definitions, Examples & Trial Balance Impact
The difference between error of omission and error of commission is an essential concept in accounting. Understanding these two error types helps students avoid common mistakes in bookkeeping and is vital for exams and practical business scenarios. At Vedantu, we simplify Commerce topics so students can revise efficiently and apply knowledge in real life.
Type of Error | Definition | Example | Effect on Trial Balance |
---|---|---|---|
Error of Omission | A transaction is completely or partly left out from the books. | Not recording cash received from a customer | Full omission doesn’t affect; partial omission may affect |
Error of Commission | A transaction is recorded, but with mistakes like wrong amount or wrong account. | Recording ₹500 as ₹50 or posting to the wrong account | May or may not affect, depending on the entry |
Difference Between Error Of Omission And Error Of Commission
In accounting, errors can occur during recording or posting entries. The difference between error of omission and error of commission is significant for identifying, correcting, and preventing mistakes in accounts. These error types also help classify how mistakes impact the trial balance.
Definition and Meaning
- Error of Omission: This happens when a transaction is not entered at all (complete omission) or only partly entered (partial omission) in the books of accounts.
- Error of Commission: This occurs when a transaction is recorded, but with incorrect details (wrong amount, wrong account, or posting errors).
Causes of Errors
- Missed invoices or bills
- Lack of attention during recording
- Clerical or data entry errors
- Misunderstanding the nature of a transaction
- Human negligence or fatigue
Examples of Error of Omission and Error of Commission
Error Type | Example | Correct Journal Entry | Error Made |
---|---|---|---|
Omission | Cash sales of ₹2,000 not recorded at all | Cash A/c Dr. ₹2,000 To Sales A/c ₹2,000 |
Entry not made in any book |
Omission (Partial) | Only Cash account debited; Sales account not credited | Cash A/c Dr. ₹2,000 To Sales A/c ₹2,000 |
Entry made only in Cash book |
Commission | Cash received from Ram ₹500 posted to wrong account (Shyam) | Cash A/c Dr. ₹500 To Ram A/c ₹500 |
Cash A/c Dr. ₹500 To Shyam A/c ₹500 |
Commission | Rent paid ₹850 recorded as ₹580 | Rent A/c Dr. ₹850 To Cash A/c ₹850 |
Rent A/c Dr. ₹580 To Cash A/c ₹580 |
Feature-by-Feature Comparison Table
Difference Between Error of Omission and Error of Commission | Error of Omission | Error of Commission |
---|---|---|
Nature | Completely or partly missed transaction | Incorrectly recorded transaction |
Cause | Neglect or forgetfulness | Carelessness, ignorance, or misunderstanding |
Examples | Purchase bill not recorded | Wrong amount, wrong account entry |
Effect on Ledger | One or both accounts omitted | Wrong account, wrong amount, or posting errors |
Effect on Trial Balance | Full omission: No effect Partial: May cause disagreement |
May or may not affect, based on error |
Rectification | Enter the missed transaction properly | Adjust/correct the wrong account or amount |
Impact on Trial Balance
A complete error of omission does not affect the agreement of the trial balance, because both debit and credit are left out. Partial omission or some errors of commission can cause a mismatch in the trial balance. For exams, always check if both sides of the entry were affected or not. Learn more about the Trial Balance format here.
Correction and Rectification
- Omission: Record the missing entry in the correct account(s). For complete omission, simply pass the correct journal entry. For partial omission, complete the entry by updating the missing side (debit or credit).
- Commission: Identify the wrongly posted account or amount. Reverse or correct the entry by posting the correct details. Sometimes, use a Suspense Account if the trial balance is not matching.
Rectification is an important topic covered in detail at Rectification of Errors.
Why Understanding This Difference Matters
Clarifying the difference between error of omission and error of commission helps score better in MCQs and long-answer questions for exams like CBSE, ICSE, and various competitive tests. It also develops real-world skills in accurate bookkeeping and internal control, preventing costly mistakes in business.
- Practise with TS Grewal Solutions or DK Goel Solutions for thorough understanding.
- Revise all types of errors at Types of Errors in accounting.
- Enhance your ledgers knowledge at Ledger Accounts to see how errors arise and are spotted.
Summary
To summarize, the difference between error of omission and error of commission centers on whether a transaction is left out (omission) or recorded incorrectly (commission). Knowing their impact on trial balance and ways to rectify them equips students for exams and accurate business practices. Mastering these basics with Vedantu boosts confidence in commerce studies.
FAQs on Difference Between Error of Omission and Error of Commission
1. What is the difference between error of omission and commission?
Errors of omission involve missing a transaction from the records, either fully or partially, while errors of commission involve recording a transaction incorrectly. Omission errors only affect the trial balance if partial; commission errors may or may not affect it.
2. What is the difference between commission and omission?
In accounting, omission means leaving out a transaction entirely or partially, resulting in incomplete records. Commission, conversely, means making an incorrect entry – the transaction is recorded but with errors in amount or account.
3. What is the difference between errors and omissions?
While the terms are often used interchangeably, errors broadly encompass any mistake in recording transactions, including omissions (leaving out entries) and errors of commission (incorrect entries). Omissions are a specific type of error.
4. What is the difference between an error of omission and an error of principle?
An error of omission is a simple oversight; a transaction is entirely or partially missed. An error of principle is a more serious mistake involving applying incorrect accounting principles, violating basic accounting rules (e.g., wrong treatment of capital expenditure).
5. What is the difference between error of omission and error of commission in trial balance?
A complete error of omission doesn't affect the trial balance. However, a partial omission or many errors of commission can cause a trial balance to be unbalanced. These errors affect the accuracy of financial statements.
6. What is an error of omission in accounting?
An error of omission occurs when a transaction is entirely or partially left out of the accounting records. This might be due to oversight or data entry issues. It can lead to inaccurate financial statements if not corrected. Such errors can be difficult to detect compared to commission errors.
7. What is an error of commission?
An error of commission happens when a transaction is recorded, but with mistakes. This could involve entering the wrong amount, posting to the wrong account, or using an incorrect journal entry. Identifying and rectifying these errors is critical for accurate bookkeeping.
8. How do these errors affect the trial balance?
Complete errors of omission will not affect the trial balance. However, partial omissions and most errors of commission will cause the debit and credit sides of the trial balance to disagree. This indicates the presence of an error somewhere in the accounting records.
9. How can these errors be rectified?
Errors of omission are corrected by recording the missing transaction(s) with a journal entry. Errors of commission are rectified by making correcting entries that reverse the wrong entry and then properly recording the transaction. For both types of errors, meticulous bookkeeping is essential for detection and correction.
10. Define errors of commission and omission with examples.
An error of omission is when a transaction is completely or partially missed (e.g., forgetting to record a sale). An error of commission is when a transaction is recorded incorrectly (e.g., recording a $100 sale as $10). Both types impact the accuracy of the financial statements and need correcting journal entries.
11. Difference between error of omission and error of commission with example
Error of omission: A purchase of supplies for $50 is completely omitted from the books. Error of commission: A $200 payment to a supplier is incorrectly recorded as a $20 payment.
12. Error of omission example
A common example of an error of omission is failing to record a cash sale. This leads to understated revenue and assets on the balance sheet. The trial balance remains balanced in this case, making it difficult to detect.

















