Solving Full Final Accounts Problems

Build a complete set of final accounts from a trial balance.

Accountancy and Book Keeping › Profit Loss Account and Balance Sheet · 30 min read

Let us be honest: there is no feeling in the study of accounting quite like the moment your Balance Sheet tallies. When the total of your assets perfectly matches the total of your liabilities and capital, it is proof that your logic was sound, your arithmetic was flawless, and every single rule of double-entry bookkeeping was respected.

In our previous chapter, "Adjusting for Depreciation and Bad Debts," we mastered the most complex individual adjustments. Now, it is time for the grand finale. We are going to put all the pieces together. We will take a raw Trial Balance, process a set of year-end adjustments, and build the Trading Account, Profit and Loss (P&L) Account, and Balance Sheet from scratch.

If you have ever felt overwhelmed by a full-page accounting problem, this chapter is for you. We are not just going to solve a problem; we are going to learn a foolproof, step-by-step system that prevents mistakes, stops you from forgetting hidden items, and guarantees that your Balance Sheet will tally on the first try.

The Golden Rule of Final Accounts

Before we look at a single number, you must burn this rule into your memory. It is the single most common reason students fail to tally their Balance Sheet.

When you are given a full problem, the information is split into two parts: the Trial Balance (the big list of balances inside the box) and the Adjustments (the bullet points listed below the box). You must treat them differently.

If you put a Trial Balance item in two places, your Balance Sheet will not tally. If you put an Adjustment in only one place, your Balance Sheet will not tally.

The "Dot" Method: Setting Up for Success

When an exam presents you with a full final accounts problem, your instinct might be to immediately start drawing lines and writing down numbers. Stop. Take two minutes to prepare.

We use a technique called the Dot Method.

Read through the adjustments at the bottom of the problem. For every adjustment you read, go up to the Trial Balance and put a small dot (or a star, or a tick mark) next to the related item.

For example, if an adjustment says "Outstanding Wages ₹2,000", go find "Wages" in the Trial Balance and put a dot next to it.

The Master Workflow

To solve a full problem without getting confused, follow this exact sequence every single time. Do not jump around.

The Final Accounts Sequence

  1. 1Step 1: Read adjustments and mark dots on the Trial Balance.
  2. 2Step 2: Draw the blank formats for Trading, P&L, and Balance Sheet.
  3. 3Step 3: Post the Trial Balance items strictly from top to bottom.
  4. 4Step 4: Process the Adjustments (giving each its two effects).
  5. 5Step 5: Close the Trading Account to find Gross Profit.
  6. 6Step 6: Close the P&L Account to find Net Profit.
  7. 7Step 7: Total the Balance Sheet to tally.

The Comprehensive Problem

Let us walk through a full, exam-style problem together. Assume we are preparing the final accounts for a business for the year ending 31st March.

The Trial Balance (as on 31st March)

Debit Balances (₹):

  • Drawings: 10,000
  • Plant & Machinery: 60,000
  • Furniture: 15,000
  • Purchases: 80,000
  • Sales Return (Returns Inward): 2,000
  • Opening Stock: 20,000
  • Wages: 10,000
  • Salaries: 15,000
  • Rent: 5,000
  • Insurance: 4,000
  • Sundry Debtors: 40,000
  • Cash in Hand: 6,000
  • Cash at Bank: 24,000
  • Bad Debts: 1,500
  • Total Debits: 2,92,500

Credit Balances (₹):

  • Capital: 1,20,000
  • Sales: 1,40,000
  • Purchase Return (Returns Outward): 3,000
  • Sundry Creditors: 25,000
  • Commission Received: 4,500
  • Total Credits: 2,92,500

The Adjustments (Outside the Trial Balance)

  1. 1Closing Stock is valued at ₹25,000.
  2. 2Outstanding Wages amount to ₹2,000 and Outstanding Salaries amount to ₹3,000.
  3. 3Insurance prepaid is ₹1,000.
  4. 4Depreciate Plant & Machinery by 10% and Furniture by 5%.
  5. 5Write off further Bad Debts of ₹2,000 and create a Provision for Doubtful Debts at 5% on Sundry Debtors.

Step 1: Marking the Dots

Before we write anything in our accounts, we look at the adjustments and mark our Trial Balance.

  • Adjustment 2 mentions Wages and Salaries. We mentally put a dot next to Wages and Salaries.
  • Adjustment 3 mentions Insurance. We put a dot next to Insurance.
  • Adjustment 4 mentions Plant & Machinery and Furniture. We put a dot next to Plant & Machinery and Furniture.
  • Adjustment 5 mentions Bad Debts and Debtors. We put a dot next to Sundry Debtors and Bad Debts.

Now we know exactly which items need to be written in the inner column to leave room for calculations.

Step 2 & 3: Posting the Trial Balance

We have drawn our formats. Now, we go down the Trial Balance strictly from top to bottom. We do not hunt for all the Trading items first, and then all the P&L items. Hunting causes you to skip lines and miss items. Just go down the list. Remember the Golden Rule: these items go to ONE place only.

  • Drawings (10,000): Goes to the Balance Sheet. We write it in the inner column under Liabilities as a deduction from Capital.
  • Plant & Machinery (60,000): Asset. It has a dot! We write ₹60,000 in the inner column of the Assets side.
  • Furniture (15,000): Asset. It has a dot! Inner column, Assets side.
  • Purchases (80,000): Trading Account (Debit). We write it in the inner column because we can see a Purchase Return on the credit side of the Trial Balance.
  • Sales Return (2,000): Trading Account (Credit). We write it as a deduction from Sales in the inner column.
  • Opening Stock (20,000): Trading Account (Debit). Outer column.
  • Wages (10,000): Trading Account (Debit). It has a dot! Inner column.
  • Salaries (15,000): P&L Account (Debit). It has a dot! Inner column.
  • Rent (5,000): P&L Account (Debit). No dot. Outer column.
  • Insurance (4,000): P&L Account (Debit). It has a dot! Inner column.
  • Sundry Debtors (40,000): Asset. It has a dot! Inner column.
  • Cash in Hand (6,000): Asset. Outer column.
  • Cash at Bank (24,000): Asset. Outer column.
  • Bad Debts (1,500): P&L Account (Debit). It has a dot! Inner column.

Now for the Credit balances:

  • Capital (1,20,000): Liability. Inner column (we need to add Net Profit and subtract Drawings later).
  • Sales (1,40,000): Trading Account (Credit). Inner column (to subtract Sales Return).
  • Purchase Return (3,000): Trading Account (Debit). We subtract this from Purchases.
  • Sundry Creditors (25,000): Liability. Outer column.
  • Commission Received (4,500): P&L Account (Credit). Outer column.

Step 4: Processing the Adjustments

Now we look at the adjustments. Remember the Golden Rule: these must go to TWO places.

Adjustment 1: Closing Stock is ₹25,000.

  • Effect 1: Credit side of the Trading Account.
  • Effect 2: Assets side of the Balance Sheet.

Adjustment 2: Outstanding Wages ₹2,000 and Outstanding Salaries ₹3,000.

  • Effect 1 (Wages): Add ₹2,000 to Wages in the Trading Account. (New Wages total = ₹12,000 in outer column).
  • Effect 2 (Wages): Show ₹2,000 as a Liability in the Balance Sheet (we owe this money).
  • Effect 1 (Salaries): Add ₹3,000 to Salaries in the P&L Account. (New Salaries total = ₹18,000 in outer column).
  • Effect 2 (Salaries): Show ₹3,000 as a Liability in the Balance Sheet.

Adjustment 3: Insurance prepaid is ₹1,000.

  • Effect 1: Subtract ₹1,000 from Insurance in the P&L Account. (New Insurance total = ₹3,000 in outer column).
  • Effect 2: Show ₹1,000 as an Asset in the Balance Sheet (we paid in advance, so it is a benefit we own).

Adjustment 4: Depreciate Plant & Machinery by 10% and Furniture by 5%.

  • Plant & Machinery: 10% of ₹60,000 = ₹6,000.
  • Effect 1: Subtract ₹6,000 from Plant & Machinery on the Assets side. (New value = ₹54,000).
  • Effect 2: Show ₹6,000 as an expense on the Debit side of the P&L Account.
  • Furniture: 5% of ₹15,000 = ₹750.
  • Effect 1: Subtract ₹750 from Furniture on the Assets side. (New value = ₹14,250).
  • Effect 2: Show ₹750 as an expense on the Debit side of the P&L Account.

Adjustment 5: Write off further Bad Debts of ₹2,000 and create a Provision for Doubtful Debts at 5% on Sundry Debtors. This is the trickiest adjustment in accounting. We must do it in a strict order.

  • First, handle the Further Bad Debts (₹2,000):
  • Effect 1: Subtract ₹2,000 from Sundry Debtors on the Assets side. (₹40,000 - ₹2,000 = ₹38,000). These are our "good" debtors now.
  • Effect 2: Add ₹2,000 to the existing Bad Debts on the Debit side of the P&L Account.
  • Second, calculate the Provision (5%):
  • :::warning

Always calculate the provision on the remaining "good" debtors, NEVER on the original Trial Balance figure. :::

  • Calculate 5% of ₹38,000 = ₹1,900.
  • Effect 1: Subtract ₹1,900 from Sundry Debtors on the Assets side. (Final Debtors in outer column = ₹38,000 - ₹1,900 = ₹36,100).
  • Effect 2: Add ₹1,900 to the Bad Debts on the Debit side of the P&L Account.
  • (Total Bad Debts expense in P&L outer column = ₹1,500 old + ₹2,000 further + ₹1,900 provision = ₹5,400).

Step 5, 6 & 7: Closing the Accounts

Everything is posted. Now we do the math, cascading the totals from one account to the next.

Closing the Trading Account

Let us look at the totals in our Trading Account outer columns.

Debit Side (Direct Expenses):

  • Opening Stock: ₹20,000
  • Net Purchases (80,000 - 3,000 return): ₹77,000
  • Wages (10,000 + 2,000 outstanding): ₹12,000
  • Total Debits = ₹1,09,000

Credit Side (Direct Incomes):

  • Net Sales (1,40,000 - 2,000 return): ₹1,38,000
  • Closing Stock: ₹25,000
  • Total Credits = ₹1,63,000

The Credit side is heavier. Gross Profit = Total Credits (1,63,000) - Total Debits (1,09,000) = ₹54,000. We write "To Gross Profit c/d ₹54,000" on the Debit side to balance the account, and immediately transfer it to the Credit side of the P&L Account as "By Gross Profit b/d ₹54,000".

Closing the Profit & Loss Account

Now we balance the P&L Account.

Credit Side (Incomes):

  • Gross Profit: ₹54,000
  • Commission Received: ₹4,500
  • Total Credits = ₹58,500

Debit Side (Indirect Expenses):

  • Salaries (15,000 + 3,000 outstanding): ₹18,000
  • Rent: ₹5,000
  • Insurance (4,000 - 1,000 prepaid): ₹3,000
  • Bad Debts (1,500 + 2,000 + 1,900): ₹5,400
  • Depreciation on Plant & Machinery: ₹6,000
  • Depreciation on Furniture: ₹750
  • Total Debits = ₹38,150

The Credit side is heavier again. Net Profit = Total Credits (58,500) - Total Debits (38,150) = ₹20,350. We write "To Net Profit transferred to Capital A/c ₹20,350" on the Debit side to balance the account.

Tallying the Balance Sheet

This is the moment of truth. We take our Net Profit of ₹20,350 and add it to Capital on the Liabilities side. Let us list the final outer-column figures for our Balance Sheet.

Liabilities Side:

  • Capital: ₹1,20,000
  • Less: Drawings: (₹10,000)
  • Add: Net Profit: ₹20,350
  • Closing Capital (outer column): ₹1,30,350
  • Sundry Creditors: ₹25,000
  • Outstanding Wages: ₹2,000
  • Outstanding Salaries: ₹3,000
  • Total Liabilities = ₹1,60,350

Assets Side:

  • Plant & Machinery (60,000 - 6,000 dep): ₹54,000
  • Furniture (15,000 - 750 dep): ₹14,250
  • Sundry Debtors (40,000 - 2,000 bad - 1,900 prov): ₹36,100
  • Closing Stock: ₹25,000
  • Prepaid Insurance: ₹1,000
  • Cash in Hand: ₹6,000
  • Cash at Bank: ₹24,000
  • Total Assets = ₹1,60,350

Both sides equal ₹1,60,350. The Balance Sheet tallies perfectly.

By following the system—marking dots, posting top-to-bottom, giving Trial Balance items one effect and Adjustments two effects, and closing in order—we eliminated the chaos. You did not have to guess where numbers went, and you did not forget any hidden subtractions. This method works for every final accounts problem, no matter how long or complex it appears.

Quick Revision

  • The Golden Rule: Trial Balance items are posted to exactly ONE place. Adjustments given outside the Trial Balance are posted to exactly TWO places.
  • The Dot Method: Always read adjustments first and mark the corresponding Trial Balance items. This reminds you to write their amounts in the inner column for calculation.
  • Top-to-Bottom Posting: Never hunt for specific items. Post the Trial Balance sequentially from top to bottom to ensure nothing is skipped.
  • Order of Closing: Always close the Trading Account first to find Gross Profit. Transfer Gross Profit to the P&L Account. Close the P&L Account to find Net Profit. Transfer Net Profit to Capital in the Balance Sheet.
  • Debtors Adjustments Order: Always subtract "Further Bad Debts" from Sundry Debtors before calculating the percentage for the "Provision for Doubtful Debts".
  • Tallying: If you follow the double-entry rules perfectly, the final total of the Assets side will always equal the final total of the Liabilities side.

Related notes