How to Detect Duplicate Transactions in CSV
Identify duplicate transactions safely using stable keys like date + amount + description (with tolerances).
Last updated: 2026-01-04
Overview
Duplicates often happen when you merge statements or re-export overlapping date ranges. Detect duplicates using stable keys.
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Step-by-step
- 1) Open Duplicate Finder.
- 2) Add your CSV.
- 3) Choose key columns (e.g., Date + Amount + Description).
- 4) Review the detected duplicates.
- 5) Export a de-duplicated file (or a report).
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Troubleshooting
- If descriptions vary slightly, normalize text (trim, collapse spaces) before matching.
- If amounts have rounding differences, use a tolerance if available.
- If refunds look like duplicates, include balance or transaction ID column when present.
FAQ
Do you delete rows automatically?
You review duplicates before exporting the cleaned file.
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