🎓 Prepared by students from Boğaziçi University

What is a T-Account?

A T-account is a visual tool accountants use to record and track increases and decreases in a single account. Shaped like the letter T, it separates debit entries on the left from credit entries on the right.

Short answer

A T-account is a simplified ledger diagram — shaped like a T — with debits recorded on the left side and credits on the right side of a single account.

Debit side vs. credit side of a T-account
Debit (left side)
  • Increases assets
  • Increases expenses
  • Decreases liabilities
  • Decreases equity
  • Decreases revenue
Credit (right side)
  • Increases liabilities
  • Increases equity
  • Increases revenue
  • Decreases assets
  • Decreases expenses
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Step-by-step worked examples

A company receives $5,000 cash from a customer. Show the T-account entry for Cash.

Cash is an asset account
An increase in an asset is recorded as a debit
Debit Cash $5,000 (left side of the Cash T-account)

A business pays $1,200 cash for rent. Show the T-account entries.

Cash (asset) decreases → credit Cash $1,200 (right side)
Rent Expense increases → debit Rent Expense $1,200 (left side)

A company borrows $8,000 from a bank. Show the T-account entries.

Cash (asset) increases → debit Cash $8,000 (left side)
Notes Payable (liability) increases → credit Notes Payable $8,000 (right side)
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Flashcards

03

Quick quiz

Q1.In a T-account, where are debits recorded?

Correct answer: B. Debits always go on the left side of a T-account.

Q2.Cash increases when a customer pays an invoice. How is this recorded in the Cash T-account?

Correct answer: B. Cash is an asset, and asset increases are debits (left side).

Q3.Which account type increases with a credit?

Correct answer: C. Liabilities, equity and revenue all increase with credits.

Q4.A T-account's balance is the debit total minus the credit total. If debits = $9,000 and credits = $3,000, the balance is:

Correct answer: B. 9,000 − 3,000 = 6,000, and since debits exceed credits it's a debit balance.
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Common mistakes

Assuming debit always means 'increase.'Correct: Debit increases assets and expenses but decreases liabilities, equity and revenue.

Thinking a T-account is a full financial statement.Correct: It's just a working tool for one account — the general ledger and trial balance compile many T-accounts.

Mixing up which side totals to compute the balance.Correct: Subtract the smaller side's total from the larger side's total; the larger side determines whether it's a debit or credit balance.

Recording only one side of a transaction.Correct: Every transaction needs at least one debit and one credit of equal amounts (double-entry).

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FAQ

What is a T-account?

A T-shaped diagram used to record debit and credit entries for a single account before posting to the ledger.

What is the T-account formula for finding balance?

Balance = total debits − total credits (or vice versa, whichever side is larger).

What are examples of T-accounts?

Cash, Accounts Receivable, Accounts Payable and Revenue each get their own T-account during the recording process.

How do you use a T-account to record a transaction?

Identify the accounts affected, apply debit/credit rules, then enter the amount on the correct side of each account's T.

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