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Double-Entry Ledger Simulator

Follow a banking event as it becomes balanced debit and credit legs, derives balances, and then gets repaired with an explicit correction.

EventDebitCreditBalanceRepairgrpDebit Legnot booked yetcustomer view €1,200Credit Legnot booked yetbalanced group requiredControl View€1,200replay and reconciliationThe ledger asks what moved and where it must be represented.
Step 1 / 5A business event arrives before any balance changes

A transfer or fee starts as an event, not as a direct balance edit.

Arrow keys to navigate · R to reset

Tap dots to jump to any step

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