Work & productivity / QUICK REFERENCE
Debits and credits: bookkeeping entries
Use double-entry rules, normal balances, T-accounts and concise journal examples to check everyday bookkeeping.
Core double-entry rules
- Debit side
- Left column of a T-account
Debit identifies a posting side; it does not necessarily mean a loss or withdrawal. [1][3]
- Credit side
- Right column of a T-account
Credit identifies the opposite posting side, not automatically income. [1][3]
- Double-entry requirement
- Total debits = total credits
Every properly recorded journal entry has offsetting postings of equal total value. [1][3]
- Basic accounting equation
- Assets = Liabilities + Equity
The equation stays balanced after each journal entry. [1][3]
- Expanded equation
- Assets = Liabilities + Capital + Revenue − Expenses − Dividends
A teaching model showing how operating activity changes equity. [1][3]
- Liabilities increase
- Credit a liability account
New amounts owed typically increase Accounts Payable by credit. [1][3]
- Equity increases
- Credit an equity account
A new owner investment usually increases equity by credit. [1][3]
Normal balances and account types
- Cash
- Asset · debit balance
More cash is posted as debit; cash payments are credits to Cash. [1]
- Accounts receivable
- Asset · debit balance
Amounts billed but uncollected increase on debit. [1]
- Supplies on hand
- Asset · debit balance
Purchases not yet expensed may initially be recorded as an asset. [1]
- Equipment
- Asset · debit balance
Equipment acquired for use generally increases through a debit. [1]
- Accounts payable
- Liability · credit balance
Unpaid supplier obligations increase on credit. [1]
- Notes payable
- Liability · credit balance
Loan principal owed increases on the credit side. [1]
- Unearned revenue
- Liability · credit balance
Customer advances are liabilities until performance obligations are met. [1]
- Common stock
- Equity · credit balance
Capital issued in a corporation increases equity. [1]
- Service revenue
- Revenue · credit balance
Revenue earned increases on credit. [1]
- Rent expense
- Expense · debit balance
Rent recognized as an expense increases on debit. [1]
- Dividends
- Distribution · debit balance
Dividends reduce owners' equity, but are not operating expenses. [1]
Example journal entries
- Owner invests cash
- Debit Cash $500; credit Common Stock $500
Both assets and equity increase by the same amount. [2]
- Cash service revenue
- Debit Cash $200; credit Service Revenue $200
Records services already provided and immediately paid. [2]
- Service billed
- Debit Accounts Receivable $300; credit Service Revenue $300
Revenue earned now; cash will be collected later. [2]
- Collect an invoice
- Debit Cash $300; credit Accounts Receivable $300
Converts a receivable to cash without recognizing revenue twice. [2]
- Buy equipment on account
- Debit Equipment $800; credit Accounts Payable $800
Acquires an asset and creates an obligation. [2]
- Pay a supplier
- Debit Accounts Payable $800; credit Cash $800
Settles a recorded payable and reduces cash. [2]
- Buy supplies for cash
- Debit Supplies $50; credit Cash $50
Purchases supplies as an asset, assuming not immediately expensed. [2]
- Use supplies
- Debit Supplies Expense $20; credit Supplies $20
Transfers consumed supplies from asset to expense. [2]
- Pay monthly rent
- Debit Rent Expense $100; credit Cash $100
Cash payment recognizes the current period's rent expense. [2]
- Accrue unpaid wages
- Debit Wage Expense $150; credit Wages Payable $150
Records incurred wages before cash payment. [2]
- Borrow cash
- Debit Cash $1,000; credit Notes Payable $1,000
Loan proceeds create cash and a liability, not revenue. [2]
- Pay a dividend
- Debit Dividends $40; credit Cash $40
A shareholder distribution is not an operating expense. [2]
- Receive a customer advance
- Debit Cash $120; credit Unearned Revenue $120
Cash before services are delivered creates a liability. [2]
- Earn an advance
- Debit Unearned Revenue $120; credit Service Revenue $120
Recognizes the revenue when the covered work is completed. [2]
Check posting and trial balances
- Equal debits and credits
- Sum of all debit amounts = sum of all credit amounts
An unequal entry is not a valid double-entry journal record. [1][2]
- T-account totals
- Ending balance = opening balance + increases − decreases
Whether debit or credit increases depends on the account type. [1][2]
- Debit-normal account balance
- Net debit = debit postings − credit postings
Used for ordinary asset and expense accounts with debit-normal balances. [1][2]
- Credit-normal account balance
- Net credit = credit postings − debit postings
Used for ordinary liabilities, equity and revenue accounts. [1][2]
- Trial balance
- List accounts with debit or credit ending balances
The trial balance checks total equality but does not detect every error. [1][2]
- Both sides balance, still wrong
- A correctly balanced amount can be in the wrong account
Equal totals are necessary but do not prove classification or timing is right. [1][2]
- Do not count loan proceeds as sales
- Borrowed cash credits a liability, not revenue
Financial statement income differs from every cash receipt. [1][2]
- Do not double-count an invoice
- Customer payment clears receivable, not revenue
Recognize revenue at earning under accrual accounting. [1][2]
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Sources
cheatsheetatlas.com/sheets/debits-credits/ · Updated 2026-10-20 · Financial accounting · introductory