The short answer

The Capital One file has 7 columns, dates written as YYYY-MM-DD and separate debit and credit columns. QuickBooks Online wants a CSV with the columns Date,Description,Amount. So the date is rewritten as DD/MM/YYYY, the amount is written as one signed number, and the text columns are moved as in the table below.

Paid pack. The Capital One profile is one of the 35 profiles unlocked by a licence (9 US dollars, paid once; see the terms). Without a licence you can still convert this file with the free manual column mapper, using the column table on this page, within the free limit of 25 rows per file.

Open the converter

The converter runs in your browser. Your file is not uploaded.

What the Capital One CSV looks like

Note kept with this layout in the profile data: The source comment writes the date as yyyy-mmm-dd and sets no explicit date-format rule; year-month-day order is certain, the month may be numeric or abbreviated, so the converter should accept both. Header names are taken from the comment and from the csv2ofx mapping ("Card No.", "Posted Date", "Debit", "Credit", "Description").

What QuickBooks Online accepts

The file the converter writes for QuickBooks Online: Date,Description,Amount
QuickBooks Online columnRequired by QuickBooks OnlineFilled from the Capital One file
Daterequiredcolumn 1 "Transaction Date"
Descriptionrequiredcolumn 4 "Description"
Amountrequiredcolumn 7 "Credit" (positive) minus column 6 "Debit" (negative)

From the vendor's help page: "QuickBooks accepts CSVs with either the 3-column or 4-column format": Date, Description, Amount; or Date, Description, Credit, Debit.

Column-by-column mapping

Every column of the Capital One file, left to right, and where it ends up in the QuickBooks Online file.

ColumnHeader textWhat it holdsWhere it goes in the QuickBooks Online file
1Transaction DateTransaction dateDate, rewritten as DD/MM/YYYY
2Posted DatePosting dateNot copied
3Card No.Account or card identifierNot copied
4DescriptionDescriptionDescription
5CategoryCategoryNot copied
6DebitMoney out (debit)Amount, as a negative number
7CreditMoney in (credit)Amount, as a positive number

Pitfalls for Capital One to QuickBooks Online

Dates

Amounts and their direction

Other QuickBooks Online import rules

Before and after: an invented example

Invented sample data. These four rows were made up for this page. They are not from a real Capital One export and hold no real account, name or balance.

The column headings are the header text the source prints.

Before: rows laid out like the Capital One file
1: Transaction Date2: Posted Date3: Card No.4: Description5: Category6: Debit7: Credit
2024-03-042024-03-050000COFFEE CORNER MAIN STEating out4.50
2024-03-052024-03-060000PAYROLL EXAMPLE COIncome2500.00
2024-03-072024-03-080000RENT MARCHHousing1234.56
2024-03-112024-03-120000REFUND EXAMPLE SHOPShopping15.25
After: the same rows as a QuickBooks Online file (Date,Description,Amount)
DateDescriptionAmount
04/03/2024COFFEE CORNER MAIN ST-4.50
05/03/2024PAYROLL EXAMPLE CO2500.00
07/03/2024RENT MARCH-1234.56
11/03/2024REFUND EXAMPLE SHOP15.25

Do it by hand in a spreadsheet, free

These steps need no tool from this site. The cell references follow the column positions of the profile above; if your spreadsheet uses semicolons between formula arguments, replace the commas.

  1. Open the Capital One CSV in a spreadsheet program through its import dialog. Set the date column (column 1 "Transaction Date") to Text so the program does not reinterpret it, and leave the amount columns as numbers.
  2. Row 1 is the header and the transactions start in row 2.
  3. Date: rewrite column A from YYYY-MM-DD to DD/MM/YYYY (2024-03-04 becomes 04/03/2024). In a new column, for the first transaction: =MID(A2,9,2)&"/"&MID(A2,6,2)&"/"&MID(A2,1,4) This formula reads the date by character position, so it only works while the dates are text and every date has a two-digit day and month. Fill it down.
  4. Amounts: merge the two columns into one signed Amount, credit minus debit: =ABS(G2)-ABS(F2) An empty cell counts as zero. Money out comes out negative.
  5. Text columns: fill Description (from column 4 "Description"). Where several bank columns feed one column, join them with a separator such as " - ".
  6. Apply QuickBooks Online's own rules from its help page: Remove any zeroes (0) from the file and leave those cells blank. Remove the word 'amount' if it appears in the Credit or Debit column header. Remove the day of the week from dates (for example 20/11/2018 TUE). Correct any transactions that display numbers in the Description column. Mac users must save the file as a Windows CSV file. CSV files for credit card accounts may display transactions in reverse order.
  7. Keep only the new columns, put the header row Date,Description,Amount on top, save the sheet as a comma-separated CSV, and compare the dates, the direction of the amounts and the number of rows with your statement in QuickBooks Online's import preview.

Or use the converter

Load the file, choose the Capital One profile in the bank list and the target QuickBooks Online, read the preview, then download. The conversion runs locally in your browser: the file is not uploaded, and only the licence key is sent for unlocking.

Paid pack. The Capital One profile is one of the 35 profiles unlocked by a licence (9 US dollars, paid once; see the terms). Without a licence you can still convert this file with the free manual column mapper, using the column table on this page, within the free limit of 25 rows per file.

Open the converter Licence terms

Where this layout comes from

No bank supplied or approved this layout. It was copied on 5 October 2026 from a public open-source importer file kept by volunteers: simonmichael/hledger, file examples/csv/banking/capital-one.csv.rules

Also read: reubano/csv2ofx, file csv2ofx/mappings/capitalone.py

The lines used from the source: # this is the format that capital one returns if you export data as .csv as of July 9 2022 ; # columns are Transaction Date in yyyy-mmm-dd, Posted Date, Card no., Description, Category, Debit, Credit ; fields date, posting-date, _, description, _, amount-out, amount-in

The QuickBooks Online rules come from the vendor's own help pages: quickbooks.intuit.com/learn-support/en-global/help-article/bank-transactions/format-csv-files-excel-bank-transactions-quickbooks/L4BjLWckq_ROW_en (named as text, not linked). The official page was fetched and read on the checked date.

Bank formats change. Banks alter their CSV exports without notice and vendors change their import rules, so this mapping can be out of date. If the preview looks wrong, use the manual column mapper.

Related pages

Capital One to other apps

Other United States exports to QuickBooks Online

All banks and apps