Capital One · credit card · US
Convert Capital One CSV Statements to QuickBooks QBO/OFX Format
Drop a Capital One export below. The columns are pre-selected for this layout, the rows are checked for the problems that break imports, and the QBO, OFX or QFX file is generated on this page. Your statement is parsed by a Web Worker inside your own browser and never leaves the device.
Imports into QuickBooks, Quicken and Xero.
- No upload — parsed locally
- Pre-mapped for this layout
- Ready for QuickBooks
Statement conversion workspace
Statement file input
Data is parsed entirely in local memory via client-side Web Workers. Zero server uploads. Impenetrable compliance.
Column mapping rules
mapping rules
Live preview
0 rowsPre-flight
awaiting file
Output format compliance
The Capital One CSV layout
What a Capital One export contains, and which field each column becomes in the converted file.
- Date format
- YYYY-MM-DD (YMD)
- Amount convention
- Separate Debit and Credit columns, both positive magnitudes
- Header row
- 7 columns
- Currency
- $ USD · e.g. $1,234.56
- Layout checked
- 2026-09-05
This layout is compiled from published export formats and has not yet been diffed against a live Capital One download. Banks change their columns, and the shape differs between account types. Your conversion is unaffected — the converter reads the real schema from your file — so adjust the mapping above if your export differs from the table.
| # | Column in export | Pre-selected as |
|---|---|---|
| 1 | Transaction Date | date |
| 2 | Posted Date | postedDate |
| 3 | Card No. | ignored |
| 4 | Description | description |
| 5 | Category | category |
| 6 | Debit | debit |
| 7 | Credit | credit |
Import errors this layout causes, and what happens instead
Capital One splits money out and money in into two separate columns, each holding a POSITIVE magnitude with the other left blank. An importer expecting one signed Amount column reads only one of them and produces a statement where every transaction points the same direction. The sign has to come from which column the value sits in, not from the value itself — and the empty side must be read as "absent" rather than zero, or every row gains a phantom 0.00 counterpart. Capital One also uses ISO YYYY-MM-DD rather than US MM/DD/YYYY, so an importer with a hardcoded US format misreads the first two components on every row.
Your statement never leaves this browser
Conversion runs in a Web Worker inside this page. The file is read with the browser’s own file API, parsed in memory, and handed back as bytes. There is no upload step, so no copy of your statement exists on a server to be retained, logged or breached.
Running off the main thread is also what keeps the page responsive. Encoding detection, a full parse and emitting a large document are heavy on a long statement; on the main thread that would freeze the interface. The worker carries a processing deadline, so a malformed file fails with a clear message rather than hanging.
Three things touch the network, and none carries statement data: a subscription check when a file exceeds the free row limit, an advertising tag recording that a conversion happened, and anonymous usage counters — the output format and a coarse size band such as “51–200 rows”. No filename, no amounts, no payee names, no account numbers. The file stays in the tab, and closing the tab discards it.
Capital One CSV conversion questions
- How do I convert a Capital One CSV statement to QuickBooks?
- Export your Capital One credit card transactions as CSV, then drop the file into the Luventra converter. The Capital One column layout is pre-selected, so the Date, Description and Amount fields map automatically. Generate a QBO, OFX or QFX file and import it into QuickBooks. The statement is parsed inside your own browser, so the file is never uploaded.
- Why does my Capital One CSV fail to import into QuickBooks?
- Capital One splits money out and money in into two separate columns, each holding a POSITIVE magnitude with the other left blank. An importer expecting one signed Amount column reads only one of them and produces a statement where every transaction points the same direction. The sign has to come from which column the value sits in, not from the value itself — and the empty side must be read as "absent" rather than zero, or every row gains a phantom 0.00 counterpart. Capital One also uses ISO YYYY-MM-DD rather than US MM/DD/YYYY, so an importer with a hardcoded US format misreads the first two components on every row.
- What date format does a Capital One export use?
- Capital One exports dates in YYYY-MM-DD format. Luventra reads that order directly and rewrites each date into the OFX timestamp format that QuickBooks expects, so days and months are not transposed on import.
- How does Capital One represent debits and credits in its CSV?
- Separate Debit and Credit columns, both positive magnitudes Luventra normalises this into a single signed amount per transaction before writing the QBO or OFX file, which is what QuickBooks expects.
- Is my Capital One statement uploaded to a server?
- No. The Capital One CSV is parsed and converted entirely inside an isolated Web Worker in your own browser. No transaction text, amounts, payee names, account numbers or file names are transmitted to Luventra or any third party, and no copy of the statement is stored anywhere.
- Does a Capital One CSV export include a header row?
- Yes. A Capital One export starts with a header row: Transaction Date, Posted Date, Card No., Description, Category, Debit, Credit. Luventra matches those column names automatically, so the mapping is already correct when the file loads.