CMA Foundation · Fundamentals of Financial and Cost Accounting

Adjustment Entries and Rectification of Errors for CMA Foundation

Adjustment entries bring the books in line with the accrual basis by recording outstanding and prepaid items, accrued and advance income, depreciation, bad debts and provisions. Rectification corrects errors found after recording. To solve questions, identify the error type, find the wrong entry, then pass the correcting entry. Use Suspense Account only when the trial balance differs.

What this chapter covers

This chapter covers two linked jobs. The first is adjusting the books at the year end so that profit shows only the income earned and expenses incurred for the year, whether or not cash has moved. The second is finding and correcting mistakes in the books, including mistakes that stop the trial balance from tallying.

In adjustments you deal with outstanding expenses, prepaid expenses, accrued income, income received in advance, depreciation, bad debts and provisions. Each adjustment touches two places: the Profit and Loss Account (or Trading Account) and the Balance Sheet. If you remember that double effect, most questions become easy.

In errors you learn the types: errors of omission, commission, principle and compensating errors. You then learn which errors affect the trial balance and which do not. This chapter connects directly to the trial balance, final accounts and depreciation chapters of the paper. A student who is strong here finds the final accounts questions much faster.

Paper 2 is fully objective, with 50 MCQs of 2 marks each and no negative marking, and this chapter produces both theory-style and numerical MCQs. Questions are short and rule-based, so you can answer them quickly once the logic is clear. The same adjustments also appear inside final accounts questions, so the effort pays off in more than one chapter.

Adjustment Entries and Rectification of Errors: topics in the order to study them

1Adjustment Entries: Meaning and NeedStart here to understand the accrual basis and why year-end adjustments exist before learning any single entry.
2Outstanding and Prepaid ExpensesThese are the simplest adjustments and set the pattern of expense accrued versus expense paid ahead.
3Accrued Income and Income Received in AdvanceThis is the mirror image of expense adjustments, so it is easy to learn right after them.
4Depreciation, Bad Debts and Provisions AdjustmentsThese need more calculation and build on the earlier adjustments, so you learn them once the basic pattern is firm.
5Errors in Accounting and Their TypesYou must be able to classify errors before you can correct them.
6Rectification of Errors and Suspense AccountThis comes last because it uses the error types and the original entry logic from every earlier topic.

How to prepare Adjustment Entries and Rectification of Errors

Treat this chapter as a set of patterns. Learn the logic once, then practise until the entry comes without thinking.

Read the meaning of the accrual basis and write one line on why cash received or paid is not the same as income or expense for the year.
For each adjustment, write the two effects: what changes in the Profit and Loss Account and what appears in the Balance Sheet, and whether it is an asset or a liability.
Practise with simple numbers. For example, rent for the year is ₹12,000, of which ₹10,000 has been paid and ₹2,000 is outstanding. The P&L shows rent of ₹10,000 + ₹2,000 = ₹12,000, and the ₹2,000 appears as a liability in the Balance Sheet.
Do depreciation, bad debts and provisions in order: first write off bad debts, then compute the provision on the remaining debtors.
Make a one-page table of error types with an example each, and mark whether the trial balance is affected.
For every rectification, write the wrong entry, then the correct entry, then the difference. Pass the correcting entry from that difference.
Finish with timed MCQ sets of 20 questions, aiming for under one minute each, and review every wrong answer.

Common mistakes in Adjustment Entries and Rectification of Errors

Treating an outstanding expense as an asset or a prepaid expense as a liability.
Fix: Ask: do you owe money (liability) or have you paid ahead for a benefit (asset)? Outstanding means you owe. Prepaid means you have paid ahead.
Adding the adjustment to the wrong side of the expense or income.
Fix: For expenses, outstanding adds and prepaid subtracts. For income, accrued adds and advance subtracts.
Calculating the provision on total debtors before deducting bad debts.
Fix: Deduct bad debts first, then apply the provision percentage to the remaining debtors, unless the question states otherwise.
Believing every error disturbs the trial balance.
Fix: Remember that errors of principle, complete omission and compensating errors do not affect it. Some errors of commission, such as posting the correct amount to a wrong account on the correct side, also do not affect it. Other errors of commission, such as wrong totalling, or a wrong amount posted to only one side, affect the trial balance; the same wrong amount posted to both sides does not.
Passing the correcting entry using the full amount instead of the difference.
Fix: Always write the wrong entry and the correct entry side by side, then pass the entry for what is needed to fix the difference.
Using the Suspense Account for errors that do not affect the trial balance.
Fix: Use Suspense Account only when the trial balance totals differ, for example because of a one-sided posting or a wrong amount posted to one side.

Last-day revision: Adjustment Entries and Rectification of Errors

Adjustments follow the accrual basis: record income earned and expense incurred, not just cash.
Outstanding expense is added to the expense in P&L and shown as a liability in the Balance Sheet.
Prepaid expense is deducted from the expense in P&L and shown as an asset.
Accrued income is added to income in P&L and shown as an asset.
Income received in advance is deducted from income in P&L and shown as a liability.
Bad debts are written off first. The provision is then made on the debtors that remain.
Depreciation is a non-cash expense that reduces the asset's book value.
Error of omission: a transaction is left out. Complete omission of a transaction does not affect the trial balance, whereas partial omission (only one side recorded) does affect it.
Error of principle: wrong class of account used, such as capital treated as revenue. The trial balance still tallies.
Compensating errors cancel out, so the trial balance still agrees.
One-sided errors affect the trial balance and are routed through the Suspense Account until found.
After rectification, the Suspense Account balance must become nil.

Adjustment Entries and Rectification of Errors practice questions

Adjustment Entries and Rectification of Errors in other exams

The same ground in other exams, if you are preparing for more than one or want another angle on it.

Adjustment Entries and Rectification of Errors: frequently asked questions

What is an adjustment entry in accounting?

An adjustment entry is passed at the end of the accounting period to record items that belong to that period but are not yet recorded or are recorded wrongly. It follows the accrual basis. Examples are outstanding rent, prepaid insurance and depreciation.

Which errors are not disclosed by the trial balance?

Errors of complete omission, errors of principle, compensating errors and some errors of commission, such as posting the correct amount to a wrong account on the correct side, do not affect the trial balance. Other errors of commission, such as wrong totalling or a wrong amount posted to one side only, do affect it. Because debit and credit totals still match for the first group, you must find those errors by other checks.

When do I use a Suspense Account?

You use it when the trial balance does not agree and the cause is not yet found. The difference is placed in the Suspense Account. As each error is found and corrected, the account is cleared to nil.

How many MCQs can I expect from this chapter?

The number varies from paper to paper, so do not count on a fixed figure. Prepare all six topics, because adjustments also appear inside final accounts questions in the same paper.

What is the fastest way to answer rectification MCQs?

Write the wrong entry and the correct entry in rough, then compare them. The difference is the rectifying entry. Eliminate options that debit or credit accounts which were never involved.