Q.On March 31, 2017 after the close of accounts, the capitals of Mountain, Hill and Rock stood in the books of the firm at Rs. 4,00,000,Rs.3,00,000 and Rs. 2,00,000, respectively. Subsequently, it was discovered that the interest on capital @ 10% p.a. had been omitted. The profit for the year amounted to Rs. 1,50,000 and the partner's drawings had been Mountain: Rs. 20,000, Hill Rs. 15,000 and Rock Rs. 10,000. Calculate interest on capital.

Partnership Capital Accounting — A First Look

Think of a partnership like a group of friends pooling money to start a roadside food stall. Each friend brings in some cash — that’s their capital. But unlike a simple piggy bank, a partnership needs a clear record of who put in how much, because profits (and losses) are shared in a fixed ratio, and partners may withdraw money, lend extra funds, or take a salary.

That record is what Partnership Capital Accounting is about.

What It Really Means

In accounting, capital is the amount a partner contributes to the firm. But it’s not just a one-time number. Over time, a partner’s capital changes due to:

• Additional capital introduced
• Drawings (money or goods taken out)
• Share of profit or loss
• Interest on capital, interest on drawings, partner’s salary, commission

The Capital Account of each partner tracks all these changes. It answers: What does the firm owe to this partner at any point?

Why It Matters

Without proper capital accounting, you cannot:

• Determine each partner’s claim on the firm’s assets
• Calculate interest on capital correctly
• Prepare the Profit and Loss Appropriation Account
• Settle accounts when a partner retires or dies

The NCERT textbook emphasises that capital accounts are personal accounts of the partners — they show the firm’s liability towards each partner.

Two Methods of Maintaining Capital Accounts

The NCERT Class 12 Accountancy textbook (Part II, Chapter 2) describes two methods:

1. Fixed Capital Method

Under this method, the capital account remains constant (except when additional capital is introduced or capital is withdrawn permanently). All other transactions — share of profit, drawings, interest, salary — are recorded in a separate Current Account.

2. Fluctuating Capital Method

Here, all transactions are recorded directly in the Capital Account. The capital balance changes every year.

Accounting Treatment — Which Account is Debited/Credited

Let’s take the most common entries. I’ll show the journal entry first, then explain.

Entry 1: Capital Introduced

When a partner brings in cash or assets:

Why? Cash comes in (asset increases — debit), and the firm’s liability to the partner increases (capital is a liability — credit).

Entry 2: Drawings

When a partner withdraws cash or goods for personal use:

Why? The firm’s liability to the partner decreases (debit the capital/current account), and cash or goods go out (credit).

Entry 3: Interest on Capital

This is an appropriation of profit. The formula (as per NCERT) is:

Interest on Capital = Capital × Rate of Time × Time (in months)/12

Journal entry:

Then, at the end of the year, Interest on Capital is transferred to the Profit and Loss Appropriation Account:

Entry 4: Partner’s Salary

If the partnership deed allows a salary:

Again, this is transferred to the Profit and Loss Appropriation Account.

Entry 5: Share of Profit

At the end of the year, after all appropriations, the remaining profit is distributed:

Formats as per NCERT

Format of Capital Account (Fluctuating Method)

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