Daily accrual made HELOC estimates worse due to front-loaded 31-day
months. Revert to rate/12 for all types - it's the standard amortization
method and works well for mortgages and personal loans. For HELOCs and
auto loans, differences from bank statements are typically due to
variable rates, extra payments, or daily billing conventions that a
fixed amortization schedule cannot capture.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Catherine Renelle
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