No rounding errors. No silent edits. No ambiguous periods.
Integer-precision arithmetic, immutable posted entries, and explicit period management. Every number is deterministic, every change is logged, and every period has a door that closes.
Deterministic arithmetic
All amounts are stored as integer minor units — cents, not dollars. No IEEE 754 floats, no banker's rounding, no accumulated drift. $1,234.56 is exactly 123456. Always.
Immutable posted entries
Once a journal entry is posted, it can never be edited or deleted. Made a mistake? Post a reversal — the original stays in the ledger with its full history. The audit trail is append-only.
Explicit period management
Periods are open, closed, or locked. Open periods accept entries. Closed periods reject them. Locked periods can't be reopened — even by admins. There's no "soft close" that someone undoes later.
Full audit trail
Every post, reversal, period close, and reconciliation is recorded with who, when, and what. The log is append-only. No edits, no deletes, no gaps. Auditors get a single chronological record of everything.
| Period | Status | Closed by |
|---|---|---|
| Oct 2025 | Locked | admin · Nov 15 |
| Nov 2025 | Locked | admin · Dec 12 |
| Dec 2025 | Closed | admin · Jan 8 |
| Jan 2026 | Open | — |
Storage (integer cents)
Display (formatted)
No float drift
Numbers you can trust. History you can prove.
Stop wondering if your books are right. Start with a system that makes wrong numbers impossible.