Free Duplicate Transaction Finder

Spot repeated rows in a bank export before they throw off your numbers. Upload a CSV and the tool scans for duplicate transactions, then lets you review and remove them so the spreadsheet reflects what actually happened on your account.

Duplicates skew totals, double-count expenses, and make budgeting or reconciliation harder than it needs to be. Catching them early keeps your records accurate.

How it works

1. Upload your transaction CSV. Already have a PDF statement? Run it through the free bank statement converter first to get a CSV.
2. The tool detects duplicates by comparing each row's date, amount, and description.
3. Review the flagged pairs so you decide what stays and what goes.
4. Export a cleaned CSV with the duplicates removed.

Why duplicate transactions happen

Repeated rows show up for ordinary reasons. Exporting overlapping date ranges and merging the files leaves the same transactions in twice. A pending charge can appear once when authorized and again once it settles. Some banks list a payment and its matching transfer separately. Manual entry and copy-paste between spreadsheets add their own accidental repeats.

Matching on date, amount, and description together reduces false positives — though it can't rule them out, since two genuinely separate transactions can be identical. Two coffee purchases for the same amount on the same day stay distinct when the descriptions differ, while a genuine duplicate matches on all three fields.

After you clean the file

A deduplicated CSV is a better starting point for the rest of your workflow. Use it for bank statement analysis to track spending and cash flow, or move straight into categorizing your bank transactions so each row lands in the right bucket.

Working from clean data means your category totals, monthly summaries, and reconciliation all line up the first time, instead of chasing a discrepancy back to a row that was counted twice.