Double-entry accounting

noun also double-entry bookkeeping

Money moves. It never appears.

Every transaction has a source and a destination, recorded as a debit in one account and an equal credit in another. Pay a bill and cash goes down while an expense goes up by exactly the same amount.

Because the two sides must match, the books check themselves. If they stop balancing, something was recorded incompletely. Every financial statement is built on that guarantee.

Vela Robotics pays its June hosting bill
Jun 30, 2026
AccountDebitCredit
6420Software & hosting$12,345.00none
1010Operating accountnone$12,345.00
Total$12,345.00$12,345.00

Key points

01

Two sides, one amount

Each entry touches at least two accounts, and its debits equal its credits.

02

Debit is not “minus”

A debit raises assets and expenses; a credit raises liabilities, equity and income.

03

Self-checking

A trial balance that does not net to zero points straight at a missing half.

04

Corrected, never erased

Mistakes are fixed with a reversing entry, so the history stays intact.

In comma

comma is a real double-entry ledger. An entry that does not balance is refused before it is saved, so the books cannot quietly drift.

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