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CloseBook: month-end close without the shared spreadsheet checklist

2026-07-22 · accounting / controller · open source

Every month-end, someone owns a checklist: banks, AR, AP, payroll, accruals, flux, lock the period. In many mid-market shops that list lives in a shared sheet that does not show what is blocked, whether required work is done, or who signed off. Full close-management products exist for large teams. Controllers still need a clear local workpaper.

CloseBook is live sybilgambleyyu.github.io/CloseBook · Source

What you get

Honest limits

Not an ERP period lock and not audit or SOX workflow software. Tailor the default tasks to your entity. Pair with Cash13 for the 13-week cash view that often runs alongside close.