Company Profit Calculator UK

What the Calculator Results Mean

The calculator shows several key figures that help you understand your business profitability.

Gross profit is your revenue minus your cost of goods sold. It shows how much you earn from sales before deducting operating expenses. This figure helps you understand your product or service profitability.

Operating profit is your gross profit minus your operating expenses. Operating expenses include rent, salaries, marketing, utilities, and other day-to-day costs. This figure shows how efficiently your business runs.

Net profit before tax is your operating profit plus any other income, minus any other costs. This is the profit your company makes before corporation tax is deducted.

Corporation tax is the tax your company pays on its taxable profits. At the time of writing, the rate is 19% for profits up to £50,000, 25% for profits over £250,000, and marginal relief applies between these thresholds.

Net profit after tax is your net profit before tax minus corporation tax. This is the profit your company retains after paying tax.

The calculator also shows the effective tax rate, which is a calculated business metric showing corporation tax divided by net profit before tax. This should not be confused with the statutory Corporation Tax rate, as the effective rate may differ due to marginal relief, capital allowances, and other tax adjustments. The effective tax rate is commonly used for financial analysis and comparison rather than statutory tax compliance.

Example Calculation

The following example is illustrative only and assumes a company with revenue of £200,000, COGS of £80,000, operating expenses of £50,000, and no other income or costs.

Gross profit is £200,000 - £80,000 = £120,000. Operating profit is £120,000 - £50,000 = £70,000. Net profit before tax is £70,000.

For a taxable profit of £70,000, the company is within the small profits rate band (profits up to £50,000) and marginal relief band (profits between £50,000 and £250,000). The calculation is as follows:

Tax at 25% on full profit: £70,000 × 25% = £17,500

Marginal relief fraction: (Upper limit - Taxable profit) × 3/200

Relief: (£250,000 - £70,000) × 3/200 = £180,000 × 0.015 = £2,700

Corporation tax: £17,500 - £2,700 = £14,800

Net profit after tax is £70,000 - £14,800 = £55,200.

The example shows the breakdown of each profit level, the corporation tax calculation including marginal relief, and the net profit after tax. This calculation assumes there are no associated companies, no augmented profit adjustments, and no other statutory Corporation Tax adjustments. Your actual figures may vary depending on your revenue, costs, and business structure. Accounting policies, capital allowances, tax adjustments, and other statutory rules may affect the final Corporation Tax calculation.

Gross Profit: Understanding Your Core Profitability

Gross profit is your revenue minus the cost of goods sold. Cost of goods sold includes the direct costs attributable to producing or supplying goods or services, depending on the nature of your business. The exact composition of direct costs depends on the nature of the business and the applicable accounting treatment.

Illustrative examples of gross margins vary by industry. Service businesses often achieve 50% to 70%, while retail grocery typically sits at 30% to 35%. Software businesses often have gross margins above 60% due to low direct costs. These are illustrative examples only and should not be treated as recommended benchmarks.

If your gross profit margin is low, it may indicate that your costs are too high or your prices are too low. Review your cost of goods sold and consider whether you can reduce costs or increase prices.

Gross profit is the starting point for all further profitability calculations. A low gross profit makes it difficult to achieve a healthy net profit, regardless of how well you manage your operating expenses.

Operating Profit: Measuring Business Efficiency

Operating profit is your gross profit minus your operating expenses. Operating expenses include rent, salaries, marketing, utilities, insurance, and other day-to-day costs of running your business.

Operating profit shows how efficiently your business is run. A high operating profit relative to revenue indicates that you are managing your costs effectively. A low operating profit may indicate that your operating expenses are too high relative to your revenue.

To improve your operating profit, review your operating expenses and identify areas where you can reduce costs. This might include renegotiating supplier contracts, reducing energy usage, or streamlining your operations.

Operating profit is often referred to as EBIT (earnings before interest and tax). It is a key metric used by investors and lenders to assess business performance.

Net Profit and Corporation Tax

Net profit before tax is your operating profit plus any other income, minus any other costs. This is the profit your company makes before corporation tax is deducted.

Corporation tax is calculated on your taxable profits. At the time of writing, the rates are 19% for profits up to £50,000, 25% for profits over £250,000, and marginal relief applies between these thresholds.

If your profits are between £50,000 and £250,000, marginal relief gradually increases your effective tax rate from 19% to 25%. The calculator uses the marginal relief formula to calculate your exact tax liability.

Net profit after tax is your net profit before tax minus corporation tax. This is the profit your company retains after paying tax. This is the amount available for reinvestment, dividends, or retained earnings.

Our Corporation Tax Calculator provides more detailed corporation tax calculations, and our Profit Margin Calculator helps you understand your profit margins in more detail.

Using the Calculator for Tax Planning

The Company Profit Calculator can help you plan your tax position by showing how changes in revenue or costs affect your corporation tax liability.

By adjusting your revenue or costs, you can see how different profit levels affect your tax bill. This helps you understand the tax implications of business decisions before you make them.

If your profits are close to the £50,000 threshold, you may want to consider whether you can reduce your taxable profits through pension contributions or other allowable deductions. Employer pension contributions are generally deductible for Corporation Tax where they satisfy the "wholly and exclusively for the purposes of the trade" requirement. Their tax impact depends on the company's circumstances, and you should seek professional advice if you are unsure.

If your profits are close to the £250,000 threshold, you may want to consider the impact of marginal relief. The effective tax rate increases gradually between these thresholds, so understanding your exact position is important.

Business decisions should be driven primarily by commercial objectives, with tax efficiency being one of several considerations. Tax planning should not drive business decisions that are otherwise commercially unsound.

For more detailed tax planning, our Director Salary Calculator can help you plan your remuneration, and our Pension Relief Calculator shows how pension contributions affect your tax position.

Common Mistakes

Several common mistakes can lead to incorrect profit calculations or tax planning errors. Understanding these helps you avoid costly errors.

Including personal expenses in business accounts. Only business expenses are deductible for corporation tax. Including personal expenses can lead to incorrect profit calculations and potential penalties.

Forgetting to include all income. Your revenue should include all income from sales, services, and other business activities. Missing income understates your profit and may lead to tax underpayment.

Using incorrect tax rates. The corporation tax rate depends on your profit level. Using the wrong rate gives an incorrect tax calculation.

Not accounting for marginal relief. If your profits are between £50,000 and £250,000, marginal relief applies. Ignoring marginal relief overstates your tax liability.

Not considering timing differences. Revenue and expenses should be recognised in the correct accounting period. Timing differences can affect your profit and tax calculations.