What is the difference between profit and cash?

Many tax surprises happen because profit and cash are not the same thing.

Understanding the difference is essential for managing your business and planning for tax.

What is profit?

Profit is what is left after you subtract allowable business expenses from your income.

Income
Minus business expenses
Equals profit

This is the figure that:

• Sole traders pay Income Tax and National Insurance on

• Limited companies pay Corporation Tax on

Profit is calculated for an accounting period, not based purely on what is sitting in your bank account.

What is cash?

Cash is the actual money in your bank account at a specific point in time.

Your bank balance is affected by:

• Customer payments

• Paying suppliers

• Loan repayments

• Buying equipment

• VAT payments

• Tax payments

• Drawings or dividends

Cash goes up and down daily. Profit is a calculated figure over a period of time.

Why profit and cash are different

There are several reasons why profit and cash do not match.

1. You may not have been paid yet

You might have issued invoices that count as income in your accounts, even if customers have not paid yet.

This increases profit but does not increase cash.

2. You may have paid for something upfront

If you buy equipment or stock, you may spend a large amount of cash in one go.

However, the full cost may not reduce your profit immediately, depending on accounting treatment.

3. Loan repayments

If you repay a business loan:

• The capital repayment reduces cash

• But it does not reduce profit

Only the interest element affects profit.

4. VAT

If you are VAT registered:

• VAT collected from customers increases cash

• But it is not your income

When you pay VAT to HMRC, cash reduces, but profit is not affected.

5. Tax payments

When you pay Income Tax or Corporation Tax:

• Cash reduces

• Profit is not affected

Tax is calculated based on profit, but paying the tax does not reduce that original profit figure.

Why this matters for tax

Tax is based on profit, not your bank balance.

You can:

• Have high profit and low cash

• Or low profit and high cash

If you rely only on your bank balance to judge how well your business is doing, you may struggle when tax bills fall due.

A simple habit that helps

To avoid cash flow problems:

• Monitor your profit regularly

• Set aside money for tax as you earn it

• Remember that VAT and tax funds are not spare cash

Understanding the difference between profit and cash is one of the most important financial lessons for any business owner.