How to Read a Profit and Loss Statement: A Simple Guide

Knowing how to read a profit and loss statement is a basic skill every business owner, investor and lender needs, yet many owners only glance at the last line. The P&L, also called the statement of profit and loss or income statement, tells the story of a period: what the business earned, what it spent, and what was left. Read properly, it reveals whether margins are improving, which costs are growing fastest, whether profit came from operations or one-off items, and where to dig deeper. This guide explains the format used by Indian companies line by line, works through a full example, shows how to analyse it in ten minutes and lists the red flags to watch for.

Where the P&L Fits

A business has three core financial statements:

• Profit and loss statement: performance over a period (a month, quarter or year)
• Balance sheet: what the business owns and owes at a point in time
• Cash flow statement: how cash moved during the period

The P&L uses accrual accounting: revenue is recorded when earned and expenses when incurred, regardless of when cash moves. That is why profit and cash can differ, as explained in our guide to cash flow management for small business.

The Format Used by Indian Companies

Companies in India present the statement of profit and loss in the format prescribed by Schedule III of the Companies Act, 2013. Proprietorships and partnerships often use the traditional trading and profit and loss account, which shows gross profit in a separate trading section, but the logic is the same. The main Schedule III lines are:

1. Revenue from operations: sales of products and services, net of GST (GST is not revenue)
2. Other income: interest, dividends, rent, gains on asset sales, and other non-operating items
3. Total income = 1 + 2
4. Expenses:
   • Cost of materials consumed
   • Purchases of stock-in-trade (goods bought for resale)
   • Changes in inventories of finished goods, work-in-progress and stock-in-trade
   • Employee benefits expense
   • Finance costs
   • Depreciation and amortisation expense
   • Other expenses
5. Profit before exceptional items and tax
6. Exceptional items
7. Profit before tax
8. Tax expense: current tax and deferred tax
9. Profit for the period
10. Other comprehensive income (mainly for companies following Ind AS)
11. Earnings per share

Two Lines That Confuse Most Readers

Cost of materials consumed

This is not purchases. It is: Opening raw material stock + Purchases of raw material minus Closing raw material stock. If you bought ₹500 lakh of material but stock rose by ₹20 lakh, consumption is ₹480 lakh.

Changes in inventories

This line adjusts for finished goods, work-in-progress and traded goods. It equals opening inventory minus closing inventory of those items. If closing stock is higher than opening stock, the figure is negative, which reduces total expenses, because part of this year's production cost is sitting in stock to be sold next year. If closing stock is lower, the figure is positive, adding to expenses.

This is also why overvaluing closing stock inflates profit: a higher closing figure makes the change more negative and expenses lower. Lenders and auditors watch stock valuation closely for this reason.

Worked Example: Reading a Full P&L

A hypothetical Vadodara pump manufacturer reports (₹ lakh):

Line	This year	Last year	% of revenue (this year)
Revenue from operations	1,000	880	100.0%
Other income	12	8	1.2%
Total income	1,012	888
Cost of materials consumed	520	440	52.0%
Purchases of stock-in-trade	60	55	6.0%
Changes in inventories	(15)	5	(1.5%)
Employee benefits expense	110	95	11.0%
Finance costs	28	22	2.8%
Depreciation and amortisation	35	32	3.5%
Other expenses	180	160	18.0%
Total expenses	918	809	91.8%
Profit before tax	94	79	9.4%
Tax expense (current 22, deferred 2)	24	20	2.4%
Profit for the year	70	59	7.0%

Check: total expenses this year = 520 + 60 minus 15 + 110 + 28 + 35 + 180 = 918. Profit before tax = 1,012 minus 918 = 94. Last year: 440 + 55 + 5 + 95 + 22 + 32 + 160 = 809, and 888 minus 809 = 79.

Analysing the P&L in Ten Minutes

1. Growth

Revenue grew (1,000 minus 880) / 880 = 13.6%. Profit after tax grew (70 minus 59) / 59 = 18.6%. Profit growing faster than revenue suggests improving efficiency. Check whether it holds when you remove other income.

2. Gross margin

Material cost this year = 520 + 60 minus 15 = 565, or 56.5% of revenue. Last year = 440 + 55 + 5 = 500, or 56.8%. Gross margin on materials is roughly stable at about 43.5%. See gross margin vs net margin.

3. Operating costs as a percentage of revenue

Cost	This year	Last year	Change
Employee benefits	11.0%	10.8%	Slightly up
Other expenses	18.0%	18.2%	Slightly down
Finance costs	2.8%	2.5%	Up
Depreciation	3.5%	3.6%	Stable

Finance costs rose 27% (22 to 28) while revenue rose 13.6%. That suggests more borrowing, perhaps to fund the higher inventory (changes in inventories of minus 15 means stock built up). The balance sheet and cash flow statement will confirm.

4. Quality of profit

Other income rose from 8 to 12. It is only 1.2% of revenue, so profit is mostly from operations. If other income were a large part of profit, or if there were large exceptional gains, the underlying business would be weaker than the bottom line suggests.

5. EBITDA

EBITDA = Profit before tax + Finance costs + Depreciation minus Other income = 94 + 28 + 35 minus 12 = 145, or 14.5% of revenue. Last year: 79 + 22 + 32 minus 8 = 125, or 14.2%. Operating performance improved slightly.

Red Flags to Watch For

• Revenue rising but receivables rising much faster: sales may be on loose credit or not real.
• Large negative "changes in inventories" year after year: stock piling up, possibly obsolete or overvalued.
• Other income or exceptional gains driving profit growth.
• Finance costs growing faster than revenue: rising debt dependence.
• Employee or other expenses growing much faster than revenue without a clear investment reason.
• Frequent reclassification of expenses between lines, making comparison hard.
• Large related-party transactions disclosed in notes.
• Effective tax rate far from expected without explanation.

Reading a Proprietorship's Trading and P&L Account

Many small businesses that are not companies present accounts in the traditional two-part format. The trading account calculates gross profit; the profit and loss account then deducts indirect expenses.

Trading account (₹ lakh)	Amount
Sales (net of GST and returns)	200
Opening stock	20
Add: purchases	150
Add: direct expenses (freight inward, factory wages)	10
Less: closing stock	(25)
Cost of goods sold	155
Gross profit	45 (22.5%)

The P&L account then deducts indirect expenses such as office salaries, rent, selling and administration costs, depreciation and interest. If those total ₹30 lakh, net profit is ₹15 lakh, or 7.5% of sales. The questions to ask are the same as for a company: is gross margin stable, are indirect costs growing faster than sales, and is closing stock valued correctly?

Linking the P&L to the Balance Sheet

The P&L does not stand alone. Several lines connect directly to the balance sheet, and checking them together reveals problems the P&L hides:

• Revenue and receivables: if revenue rose 14% but receivables rose 40%, collections are slipping.
• Cost of materials and inventory: rising stock with flat sales signals overbuying or slow-moving items.
• Finance costs and borrowings: interest should be consistent with average debt and the rates you pay.
• Depreciation and fixed assets: depreciation should move with additions to plant and equipment.
• Profit and reserves: profit for the year, less any distributions, should increase retained earnings.

Monthly P&L for Management

The statutory format is designed for external reporting. For running the business, a monthly management P&L is more useful:

• Revenue by product line, branch or customer group
• Gross margin by line
• Operating expenses grouped by department or cost centre
• EBITDA, then depreciation, interest and tax
• Comparison with budget and same month last year

Build it from the same ledgers as the statutory P&L so the two always reconcile.

Common Mistakes When Reading a P&L

• Looking only at net profit and ignoring the trend in each cost line
• Confusing purchases with cost of materials consumed
• Comparing one month with the previous month in a seasonal business
• Treating profit as cash available
• Ignoring the notes, where detail on other income, exceptional items and related parties lives

Producing Reliable P&Ls

Reading a P&L is only useful if it is accurate and timely. Fininvo ERP produces the profit and loss statement, balance sheet, trial balance and cash flow statement with comparative analysis, from the same ledgers used for daily transactions. See pricing. This article is general information, not accounting or investment advice.

Frequently Asked Questions

What is the difference between a P&L and a balance sheet?

The P&L shows income and expenses over a period. The balance sheet shows assets, liabilities and equity at a specific date.

Why is changes in inventories sometimes negative?

When closing stock of finished goods and work in progress is higher than opening stock, the change is negative, which reduces total expenses because part of the cost is carried forward in inventory.

Is GST included in revenue on the P&L?

No. Revenue from operations is shown net of GST collected, because GST is collected on behalf of the government.

What is a good net profit margin?

It varies by industry. Compare with your own history and with businesses in the same sector rather than a universal number.

How often should a small business review its P&L?

Monthly. Quarterly or annual review is too late to correct problems such as rising costs or falling margins.