Closing Entries: How to Close Temporary Accounts Step by Step at Period End

Closing entries are journal entries made at the END of an accounting period that zero out all temporary accounts (revenue, expenses, dividends/draws) and transfer their balances into Retained Earnings (or Owner's Capital for sole proprietorships). After closing entries, every temporary account has a zero balance and is ready to accumulate new activity in the next period. Permanent accounts (assets, liabilities, equity) are NOT closed — they carry their balances forward into the next period. The four closing entries, in order: 1. **Close Revenue accounts to Income Summary**: debit each revenue account for its full balance, credit Income Summary for the total. This zeros out all revenue accounts. 2. **Close Expense accounts to Income Summary**: credit each expense account for its full balance, debit Income Summary for the total. This zeros out all expense accounts. 3. **Close Income Summary to Retained Earnings**: if Income Summary has a credit balance (revenues exceeded expenses = net income), debit Income Summary and credit Retained Earnings. If Income Summary has a debit balance (expenses exceeded revenues = net loss), credit Income Summary and debit Retained Earnings. 4. **Close Dividends (or Owner's Draws) to Retained Earnings**: debit Retained Earnings, credit Dividends. This zeros out the Dividends account and reduces Retained Earnings by the amount of dividends declared. After all four entries are posted, every temporary account should have a zero balance. The post-closing trial balance should contain ONLY permanent accounts (assets, liabilities, equity) with their correct ending balances. Snap a photo of any closing entry problem and AccountingIQ walks through each of the four entries, shows the Income Summary calculation, and generates the post-closing trial balance.

Let's work through a complete closing entry example. At December 31, the adjusted trial balance shows: Service Revenue: $85,000 (credit balance) Interest Revenue: $2,000 (credit balance) Salaries Expense: $42,000 (debit balance) Rent Expense: $12,000 (debit balance) Utilities Expense: $3,500 (debit balance) Depreciation Expense: $5,000 (debit balance) Dividends: $10,000 (debit balance) Retained Earnings (beginning): $50,000 (credit balance) **Entry 1: Close revenues to Income Summary.** Dr. Service Revenue $85,000 Dr. Interest Revenue $2,000 Cr. Income Summary $87,000 After posting: both revenue accounts are zero. Income Summary has a $87,000 credit balance. **Entry 2: Close expenses to Income Summary.** Dr. Income Summary $62,500 Cr. Salaries Expense $42,000 Cr. Rent Expense $12,000 Cr. Utilities Expense $3,500 Cr. Depreciation Expense $5,000 After posting: all expense accounts are zero. Income Summary now has a credit balance of $87,000 - $62,500 = $24,500. This $24,500 IS the net income for the period. **Entry 3: Close Income Summary to Retained Earnings.** Dr. Income Summary $24,500 Cr. Retained Earnings $24,500 After posting: Income Summary is zero. Retained Earnings has increased by $24,500 (from $50,000 to $74,500). If we had a net loss instead, we would debit Retained Earnings and credit Income Summary. **Entry 4: Close Dividends to Retained Earnings.** Dr. Retained Earnings $10,000 Cr. Dividends $10,000 After posting: Dividends is zero. Retained Earnings is now $74,500 - $10,000 = $64,500. **Verification**: Retained Earnings ending balance = Beginning ($50,000) + Net Income ($24,500) - Dividends ($10,000) = $64,500. This matches the Retained Earnings balance on the balance sheet. The Income Summary account is a TEMPORARY intermediary — it exists only during the closing process. It collects all revenues and expenses in one place, reveals the net income or loss, and then transfers that result to Retained Earnings. Some companies skip Income Summary entirely and close revenues and expenses directly to Retained Earnings. Both methods produce the same final result. AccountingIQ generates all four closing entries from an adjusted trial balance in one step and verifies the post-closing Retained Earnings balance matches the expected ending balance.

The most common mistake on closing entry problems is closing an account that should not be closed (permanent) or failing to close one that should be (temporary). Here is the complete classification. **Temporary accounts (CLOSED at period end):** - All revenue accounts (Service Revenue, Sales Revenue, Interest Revenue, Gain on Sale, etc.) - All expense accounts (Salaries Expense, Rent Expense, COGS, Depreciation Expense, Loss on Sale, etc.) - Dividends (or Owner's Draws for sole proprietorships) - Income Summary (created and closed during the closing process itself) **Permanent accounts (NOT closed — carry forward):** - All asset accounts (Cash, AR, Inventory, Equipment, Accumulated Depreciation, Prepaid Expenses, etc.) - All liability accounts (AP, Notes Payable, Unearned Revenue, Accrued Liabilities, Bonds Payable, etc.) - All equity accounts EXCEPT dividends/draws (Common Stock, Retained Earnings, Additional Paid-in Capital, Treasury Stock) **The memory trick**: temporary accounts measure activity for ONE PERIOD only (how much revenue did we earn THIS year? how much did we spend THIS year?). They must be reset to zero so next year's activity starts fresh. Permanent accounts measure cumulative position (how much cash do we HAVE? how much do we OWE?) and should never be zeroed because the position carries forward. **Common traps on exams:** 1. **Accumulated Depreciation is PERMANENT** (not closed), even though Depreciation Expense is temporary (closed). Students confuse these because they both relate to depreciation. The expense measures how much depreciation was recorded this period. The accumulated depreciation is the running total of all depreciation ever taken on the asset. 2. **Unearned Revenue is PERMANENT** (it is a liability, not a revenue account). Students see the word "revenue" and assume it should be closed. It should not. 3. **Dividends Payable is PERMANENT** (it is a liability — the declared but unpaid dividend). The Dividends account itself (the debit that reduces equity) is temporary and closed. 4. **Owner's Draws** (sole proprietorship) is temporary and closed to Owner's Capital. It works the same way as Dividends in a corporation. 5. **Income Tax Expense is temporary** and closed like any other expense. Income Tax Payable (the liability for taxes owed) is permanent. AccountingIQ classifies every account as temporary or permanent and automatically generates the correct closing entries for any trial balance.

After posting all four closing entries, prepare a post-closing trial balance. This is the final verification that the closing process was done correctly. **What the post-closing trial balance should look like:** 1. **Only permanent accounts appear.** If any revenue, expense, or dividend account appears with a non-zero balance, the closing entries were incomplete or incorrect. 2. **Debits equal credits.** The fundamental accounting equation still holds. Total debits in the post-closing trial balance must equal total credits. 3. **Retained Earnings reflects the updated balance.** The Retained Earnings balance should equal: beginning balance + net income (or - net loss) - dividends. If the Retained Earnings balance does not match this calculation, there is an error in the closing entries. **Using our worked example**, the post-closing trial balance would include only: Cash, Accounts Receivable, Equipment, Accumulated Depreciation, Accounts Payable, Common Stock, and Retained Earnings ($64,500). No revenue, expense, or dividend accounts appear. If Service Revenue still showed a $85,000 credit balance, Entry 1 was either not posted or not posted correctly. **Common post-closing trial balance errors:** - A temporary account still appears with a balance. Fix: review the closing entries and ensure every temporary account was included. - Debits do not equal credits. Fix: re-verify each closing entry's debits and credits. Common source: Income Summary was not fully closed (remaining balance left). - Retained Earnings balance does not match expected. Fix: verify Entry 3 (Income Summary to RE) and Entry 4 (Dividends to RE). Check that Income Summary was fully zeroed. **The accounting cycle context:** Closing entries are step 8 of the 10-step accounting cycle: 1. Identify transactions 2. Record journal entries 3. Post to the general ledger 4. Prepare the unadjusted trial balance 5. Record adjusting entries 6. Prepare the adjusted trial balance 7. Prepare financial statements 8. Record closing entries ← we are here 9. Prepare the post-closing trial balance 10. Record reversing entries (optional) The post-closing trial balance (step 9) is what rolls forward to become the opening balances for the next accounting period. It is the starting point for year 2, just as the original opening balances were the starting point for year 1. **Why this matters beyond exams**: in real-world accounting, the closing process happens at the end of every fiscal year. Modern accounting software (QuickBooks, Xero, Sage) performs closing entries automatically when the year is closed, so accountants rarely do manual closing entries. But understanding the process is essential for: interpreting financial statements, understanding how Retained Earnings changes over time, troubleshooting discrepancies when the software produces unexpected results, and passing the CPA exam. AccountingIQ performs the full closing cycle from adjusted trial balance through post-closing trial balance in one step, verifying that all temporary accounts are zeroed and that Retained Earnings is correct.