Bookkeeping Vocabulary in English

Double-entry bookkeeping is the method in which every financial transaction is recorded in at least two accounts — as a debit in one account and a credit in another — so that the total of all debits always equals the total of all credits. This system was developed in medieval Italy and has been the basis of business accounting ever since. The fundamental equation it maintains is: Assets = Liabilities + Equity. If you buy a computer for cash, for example, you debit the equipment account (assets increase) and credit the bank account (assets decrease), keeping the equation balanced. Double-entry provides an automatic check against errors and makes it possible to produce complete financial statements.

In bookkeeping, debit and credit are entries on the left and right sides of an account respectively — they do not mean “money in” and “money out” as in everyday banking language. Whether a debit or credit increases or decreases an account depends on the type of account. For asset and expense accounts, a debit increases the balance and a credit decreases it. For liability, equity, and income accounts, it is the opposite — a credit increases the balance and a debit decreases it. This is confusing at first, but it follows logically from the accounting equation (Assets = Liabilities + Equity) and the need for every transaction to balance.

A trial balance is a statement listing the closing balances of all accounts in the ledger at a particular date, with debits in one column and credits in another. If the total of debits equals the total of credits, the books are said to “balance” and there are no arithmetical errors. The trial balance is prepared before drawing up the final financial statements and acts as a check that the double-entry system has been applied correctly. However, it does not detect all types of errors — for example, if a transaction has been posted to the wrong account entirely, the trial balance will still balance, even though there is an error.

The journal is the book of original entry: when a transaction occurs, it is first recorded in the journal, which shows the date, the accounts to be debited and credited, the amounts, and a brief description. The ledger is the book of final entry: transactions are then “posted” from the journal into individual accounts in the ledger, where they are grouped and accumulated. The journal gives a chronological record of every transaction; the ledger gives a running balance for each account. Together they form the core of the double-entry system. In modern bookkeeping software, both functions happen automatically when a transaction is entered.

Bank reconciliation is the process of comparing the balance in the business’s own cash book or bank account record with the balance shown on the bank statement, and identifying the reasons for any differences. Common differences include unpresented cheques (written by the business but not yet cleared by the bank), outstanding deposits (paid in but not yet showing on the statement), bank charges, and errors. Reconciling the bank account regularly — ideally monthly — is an important control that catches errors, detects fraud, and ensures that the cash balance in the books accurately reflects the amount available. It is one of the most routine but important tasks in bookkeeping.

Both accruals and prepayments are adjustments made at the end of an accounting period to ensure that income and expenses are recorded in the period they relate to, not simply when cash changes hands. An accrual is an expense that has been incurred but not yet paid (or income earned but not yet received) — for example, electricity used in December but not billed until January. A prepayment is the opposite: cash has been paid in advance for something that will benefit a future period — for example, an annual insurance premium paid in full in January. Both adjustments follow the accruals concept, which underpins the preparation of accurate financial statements.

A credit note is a document issued by a seller to a buyer that reduces the amount owed on a previous invoice. It is the opposite of an invoice. Common reasons for issuing a credit note include returned goods, damaged items, overcharging on an original invoice, or a discount agreed after the invoice was sent. In the seller’s books, the credit note reduces the amount in the sales ledger for that customer. In the buyer’s books, it reduces the amount owed in the purchase ledger. Credit notes must be recorded promptly and matched against the original invoice to keep the accounts accurate and to support the correct VAT treatment.

VAT (Value Added Tax) is a consumption tax charged on most goods and services in the UK and many other countries. VAT-registered businesses collect VAT from their customers on sales (output VAT) and pay VAT to their suppliers on purchases (input VAT). The difference between output and input VAT is paid to HMRC each quarter (or reclaimed if input VAT exceeds output VAT). VAT must be recorded separately from the net amount of each transaction in the bookkeeping system, so that the correct figures can be reported on the VAT return. Keeping accurate VAT records is a legal requirement and errors can result in penalties.

Petty cash is a small fund of cash kept on the premises for minor day-to-day business expenses, such as postage, tea and coffee, stationery, or small travel costs. It is managed using an imprest system: a fixed amount is held in the petty cash box, and every time money is taken out, a receipt and a petty cash voucher are completed. When the fund runs low, it is “topped up” to its original amount. The total of vouchers plus remaining cash should always equal the original imprest amount. A petty cash book records all transactions, and the entries must eventually be posted to the main accounts under the appropriate expense headings.

The most effective approach is to learn each term in the context of the double-entry system. Group words by their function: recording tools (journal, ledger, cash book, chart of accounts), transaction documents (invoice, receipt, credit note, remittance), balancing and control (trial balance, bank reconciliation), and adjustment entries (accrual, prepayment). Practice by working through simple bookkeeping exercises — recording a few transactions in a journal, posting to a ledger, and preparing a trial balance — even if you do it on paper. Seeing the words used in the actual process makes them far more memorable than reading definitions alone. Use the Flash Cards here to drill the terms, then practise with real bookkeeping software such as FreeAgent or Xero.