YNAB

“YNAB imported the same transactions again”

Short answer

YNAB matches on date, amount and payee together, and only against a recent window of existing transactions — so older history and any bank that reformats its descriptions between downloads slip through as duplicates. Start each import the day after the last one rather than overlapping, and expect to remove duplicates from older history by hand; the matching window is a design limit.

YNAB is good at spotting repeats, which makes it more surprising when duplicates get through. Its matching depends on values that bank exports do not always keep stable between downloads.

Updated · Applies to YNAB

Symptoms

  • Transactions you already approved reappear as new
  • Duplicates concentrate around a particular date range
  • The amounts and payees match exactly

What actually causes it

Cause 1

Matching runs on a limited window

Duplicate detection compares against a recent range of existing transactions. Importing older history falls outside that window, so entries you already have are not recognised.

Cause 2

The payee text changed between downloads

Matching uses date, amount and payee together. A bank that reformats its descriptions between exports breaks the third element, and a transaction that is identical in substance no longer matches.

Cause 3

The same period was downloaded twice

Overlapping ranges give the importer two copies to reconcile, and anything its matcher misses becomes a duplicate rather than an update.

How to fix it: YNAB

  1. Drop the file into the checker below to see the exact date range and transaction count before importing — that alone prevents most overlap.
  2. Import ranges that begin the day after your last import rather than overlapping for safety.
  3. For older history, expect to remove duplicates by hand; the matching window is a design limit rather than a defect.
  4. Where payee text keeps changing, matching on date and amount during review is more reliable than trusting the automatic pass.

Skip the manual edit — fix it automatically

Knowing the file's exact date range before importing is the cheapest way to avoid the overlap that creates duplicates. Free, no signup, no upload.

Open the fixer

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Any importer“The import said it worked but nothing appeared”YNAB“The file you tried to import appears to be empty”Quicken / QuickBooks / YNAB“Some transactions are missing after import”Quicken / QuickBooks / GnuCash“Every transaction imported twice”