New to accounting? Start here

This page explains the ideas that every other page builds on. It takes about ten minutes to read.

What is accounting?

Accounting is recording what a business does with money, then summarising it so people can see how the business is doing. Owners, banks, investors and HMRC all read accounts to make decisions: whether to lend money, invest, or how much tax is due.

In accounting, the business is always treated as separate from its owner. If the owner takes £100 out of the business for themselves, that is £100 leaving the business, even though it is the owner’s money in the end.

The three main reports

At the end of each year, a company produces three main reports. A sole trader usually only needs the first two.

ReportWhat it showsThink of it as
Income statement
(statement of profit or loss)
Income, expenses and profit for the whole yearA video of the year
Statement of financial position
(balance sheet)
What the business owns and owes on the last day of the yearA photo on one day
Statement of cash flowsWhere cash came from and where it went during the yearA bank statement for the whole business

Why a separate cash report? Profit isn’t the same as cash. A business can make a profit while its bank balance falls, for example if customers haven’t paid yet or it has bought new equipment. More businesses fail because they run out of cash than because they make a loss.

Double entry in one sentence

Every transaction changes two things, so it is recorded twice: once on the left side of one account (a debit) and once on the right side of another (a credit), for the same amount.

Example. The business buys a laptop for £800 cash. It gains a laptop worth £800 and loses £800 of cash. Two changes, two entries: debit Equipment £800, credit Cash £800.

Because every debit has a matching credit, the books always balance. That is how accountants check their work.

The five types of account

TypeIn plain EnglishExamples
AssetThings the business owns or is owedCash, stock, vans, money customers owe
LiabilityThings the business owesLoans, unpaid supplier bills
Equity (capital)The owner’s shareMoney the owner put in, profit kept
IncomeMoney the business earnsSales, rent received
ExpenseCosts of running the businessRent, wages, electricity

Key words

Transaction
Any event involving money: a sale, a purchase, a payment.
Debit (Dr)
The left side of an account.
Credit (Cr)
The right side of an account.
On credit
Bought or sold now, paid for later.
Trade receivables
Money customers owe the business (also called debtors).
Trade payables
Money the business owes its suppliers (also called creditors).
Inventory
Goods held to sell (stock).
Revenue
Money earned from sales.
Profit
Income minus expenses.
Drawings
Money the owner takes out for personal use.
Depreciation
Spreading the cost of a long-lasting asset over the years it is used.
Financial year
The 12-month period the accounts cover, often ending 31 December or 31 March.

The order to work through

  1. The accounting equation: why the books always balance.
  2. Debits, credits and account types: which side each entry goes on.
  3. Journal entries: writing transactions down.
  4. T-accounts: posting them to the accounts.
  5. Trial balance: checking that everything balances.
  6. Accruals and prepayments and depreciation: year-end adjustments.
  7. Income statement and statement of financial position: the final reports.
  8. Statement of cash flows: where the cash went.
  9. Ratios and IFRS standards: Year 3 analysis and rules.
  10. Industry ready: audit, practical bookkeeping, group accounts and interview prep for graduate roles.
  11. On the job: realistic work simulations based on the tasks you’ll do in your first year.

Each topic page starts with a plain-English section called “New to this topic?”. Read that first, then the lesson, then try the questions. If you get one wrong, press Show answer to see the working and an explanation.