Double-entry bookkeeping in one rule
Every transaction: Total Debits = Total Credits
Double-entry bookkeeping records each transaction twice — once as a debit and once as a credit — so the books always balance. This calculator works like a trial balance: enter your accounts with their debit or credit amounts and it verifies the golden rule instantly, flagging the exact difference if something is off.
Debit or credit? The quick guide
| Account type | Increase is a… | Decrease is a… |
|---|---|---|
| Assets (cash, stock, receivables) | Debit | Credit |
| Expenses (rent, salaries) | Debit | Credit |
| Liabilities (loans, payables) | Credit | Debit |
| Income (sales, fees) | Credit | Debit |
| Capital / equity | Credit | Debit |