How accurate is BalancedPDF?
We test the converter on real bank statements and publish what we find, including what still goes wrong.
These are results for the model the site uses today, Anthropic’s Claude Sonnet (see the security page). The tests ran in September and October 2026; this page was last updated on 10 November 2026.
Headline numbers
- Over 99% of transactions read correctly. Across 23 real statements from UK, Australian and other banks (391 transactions), 390 came out with the right date and amount the first time we ran them, and all 391 do with the converter as it is now. The one first-time miss was a date left blank on a page that began part-way through a day. It was flagged for review, not guessed.
- Every amount was right (391 of 391), and no transaction was missed or invented.
- No statement was wrongly marked as balanced. When the check can’t confirm a statement, it says so and shows which rows to look at.
- 17 of the 19 statements that should balance now do so automatically. The other two go to review: one has a reference number that was read two different ways, the other a block of fee lines that wasn’t picked up.
What we tested
Two groups. 18 statements (33 pages, 203 transactions) from 8 banks in 5 countries, including scanned pages, which we also used while building the converter. And 5 statements from Bendigo, Westpac, NatWest, Lloyds and HSBC (188 transactions) that the converter had not seen before the first run. On that first run 2 of the 5 balanced automatically; after we fixed the two layout problems they exposed, 4 do.
“Correct” means the date and amount match the statement exactly, checked by hand against the PDF.
What these numbers don’t tell you
- 23 statements is a small sample, and we fixed problems these tests found. A layout we haven’t seen may do worse the first time.
- Scanned and photographed pages, and unusual layouts, are where the converter struggles most.
- That is why every statement is checked against its balances and every row links to its line on the PDF: so you can see for yourself, rather than trust a percentage.
If a statement doesn’t convert well
Choosing a workflow? Our guide to native PDF import, general AI and dedicated converters explains when to use each and how to check the output.
Email it to support@balancedpdf.com and we’ll use it to fix the converter (how we handle it). Unbalanced statements aren’t charged.