Marketplace/i2Business/rapprochement-bancaire
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Bank reconciliation

Compares the bank journal from your accounting software with the bank statement (Excel or CSV). Applies the debit/credit inversion, matches transactions by amount and date, and produces a four-tab Excel workbook: discrepancy summary, matched transactions, unmatched book entries, unmatched bank entries.

2 downloads2 files · Excel or CSV input · 4-tab Excel workbook · Python script · Claude Cowork and Claude Code
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Description

Compares the bank journal from your accounting software with the bank statement (Excel or CSV). Applies the debit/credit inversion, matches transactions by amount and date, and produces a four-tab Excel workbook: discrepancy summary, matched transactions, unmatched book entries, unmatched bank entries.

This resource is maintained by i2Business consultants and updated whenever the systems it covers change. It works with the other building blocks in the catalog and can be tailored to your context as part of a support engagement.

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Content preview

Excerpt: the inversion rule between the books and the statement, on which all matching relies. rapprochement-bancaire/SKILL.md

Money in: Debit in the books <-> Credit on the bank statement
Money out: Credit in the books <-> Debit on the bank statement
Pass A: same amount and date gap within tolerance (5 days by default)
Pass B: same amount, whatever the date (date shift)
Remainder: unmatched lines, with suggested analysis (fees, timing, data entry)

Included files

Skill (SKILL.md)1 file
Reconciliation script (Python)1 file

How to use it

1
Add the skillUnzip the archive and place the rapprochement-bancaire folder in your skills folder (Claude Code: ~/.claude/skills/), or import it as a skill in Cowork. Python with pandas and openpyxl is required.
2
Provide both filesAttach the bank journal export from your accounting software and the bank statement (Excel or CSV), for the same period.
3
Have the columns inspectedThe skill records sheets, columns, date format and the sign of bank debits, often negative. These settings are passed to the script: formats vary from one bank to another.
4
Run and checkThe script produces the Excel workbook. Check the totals on each side and that recalculating the workbook returns no formula errors.
5
Interpret the discrepanciesDiscrepancies mostly come from unrecorded bank fees, unrecorded receipts or value date offsets. The skill helps with matching: validation and journal entries remain the accountant's job.
Details
TypeSkills
AccessVia form
Version1.0
Updated7 November 2026
Works withClaudeClaude Code
LicenseCC BY 4.0 - source attribution: i2Business
LanguagesFrench
Size10 KB
Downloads2
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