American Express · credit card · US
Convert American Express CSV Statements to QuickBooks QBO/OFX Format
Drop a American Express 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 American Express CSV layout
What a American Express export contains, and which field each column becomes in the converted file.
- Date format
- MM/DD/YYYY (MDY)
- Amount convention
- Inverted — purchases positive, payments and refunds negative
- Header row
- 5 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 American Express 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 | Date | date |
| 2 | Description | description |
| 3 | Card Member | payee |
| 4 | Account # | ignored |
| 5 | Amount | amount |
Import errors this layout causes, and what happens instead
American Express inverts the sign convention nearly everyone else uses: a purchase is written as a POSITIVE number and a payment or refund as negative, because the export is framed from the issuer’s side of the ledger. Import it raw and every expense books as income and every payment as a charge. The file loads without a single error and the books still balance — to exactly the wrong sign, which is far harder to catch than an outright failure and can survive several closes before anyone notices.
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.
American Express CSV conversion questions
- How do I convert a American Express CSV statement to QuickBooks?
- Export your American Express credit card transactions as CSV, then drop the file into the Luventra converter. The American Express 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 American Express CSV fail to import into QuickBooks?
- American Express inverts the sign convention nearly everyone else uses: a purchase is written as a POSITIVE number and a payment or refund as negative, because the export is framed from the issuer’s side of the ledger. Import it raw and every expense books as income and every payment as a charge. The file loads without a single error and the books still balance — to exactly the wrong sign, which is far harder to catch than an outright failure and can survive several closes before anyone notices.
- What date format does a American Express export use?
- American Express exports dates in MM/DD/YYYY 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 American Express represent debits and credits in its CSV?
- Inverted — purchases positive, payments and refunds negative Luventra normalises this into a single signed amount per transaction before writing the QBO or OFX file, which is what QuickBooks expects.
- Is my American Express statement uploaded to a server?
- No. The American Express 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 American Express CSV export include a header row?
- Yes. A American Express export starts with a header row: Date, Description, Card Member, Account #, Amount. Luventra matches those column names automatically, so the mapping is already correct when the file loads.