Compliance · T661 · Core Output Verification

Interest Accrual Recompute

Recomputes per-day interest accrual over a day-count convention and compounding basis you declare, then diffs the recomputed cumulative total against your core's own posted accrual or interest-paid ledger entry. Returns MATCHES, DIVERGES with the exact divergence, or INDETERMINATE when there is nothing to diff against. An independent recompute-and-receipt over your own declared inputs, not an audit of your core, and not a claim about which convention it should use.

Core Verify Day-Count / Compounding Zero PII Client-Side
Scope & reliance: 🔒 All inputs are processed locally in your browser. No data is transmitted. Do not enter real personal data — use synthetic or anonymised inputs only. Account/customer identifiers should be caller-supplied opaque tokens or hashes, never a real account number. This tool recomputes accrual arithmetic from the numbers you declare; it does not connect to any core, does not find "the vendor's bugs," and is not an audit of or endorsement/substitution for any core platform. Deterministic logic · no inference · zero PII · runs offline · CC BY 4.0.
Statement Period & Balance
First day of the statement period.
Length of the period, in days.
Constant daily balance for the period. The underlying kernel accepts a day-by-day series via the API for a balance that moves intra-period.
Product Terms
Contract term you declare, never inferred (ISDA day-count fraction definitions).
Whether unposted daily accrual is added back into the balance it earns on.
Core-Reported Posting (to diff against)
Date the core posted its own accrual/interest-paid entry.
Leave blank to see the recomputed schedule with no core figure to diff against.