The Fintech Builder · guided accounting lab

Check the whole journal before posting

Choose → step → observe → compare. Inspect exact debit/credit totals and bank-book signs before one modeled complete-journal boundary.

Synthetic teaching inputsInteger minor unitsPortable model

Draft preview

Exact debit and credit total comparisonBars compare totals in one currency. Exact values and residual appear in the diagnostic panel.DebitCredit=

Preview totals are visible immediately. Only the final successful step models a committed journal.

AccountSideMinor units

Audit and interpretation

    Cedar Teaching Bank is fictional. Accounts and policy are trusted teaching state. This pure model performs no database I/O; actual durable acceptance requires one controlled transaction. USD and EUR are separate currencies, both pinned exponent 2. Static complete-journal explanation.