fints2ledger

A tool for downloading transactions from FinTS banking APIs and sorting them into a ledger journal.

pyfints is used to download the transactions. A list of compatible banks can be found there. This tool was tested with ing-diba only.

Install

pip install fints2ledger

Create a config.yml file with the following contents and replace values in the fints category: (This file will also be automatically created if missing)

fints:
  blz: "<your bank's BLZ>"
  account: "<your account number>"
  password: "<your banking password>"
  endpoint: <your bank fints endpoint> # e.g.: https://fints.ing-diba.de/fints/ for ING-Diba

ledger:
  prompts: 
    - credit_account
    - debit_account
  autocomplete:
    accounts:
      - credit_account
      - debit_account
  defaults:
    debit_account: assets:bank:checking
  md5:
    - date
    - payee
    - purpose
    - amount

Usage

Run

fints2ledger

This will download the transactions from the last year and tries to convert them to a ledger journal.

A list of available command line arguments:

usage: fints2ledger [-h] [--no-csv] [--no-ledger] [--csv-file CSVFILE]
                    [--ledger-file LEDGERFILE]

Converting transactions from fints apis to ledger.

optional arguments:
  -h, --help            show this help message and exit
  --no-csv              exclude conversion from fints to csv (default: not
                        excluded)
  --no-ledger           exclude conversion from csv to ledger (default: not
                        excluded)
  --csv-file CSVFILE    file to store/load csv transactions to/from (default:
                        transactions.csv)
  --ledger-file LEDGERFILE
                        file to store ledger entries to (default:
                        ledger.journal)
  --date START          start date to pull the FinTS entires from (fromat:
                        2017/12/31 or 17/12/31, default: last year)
  --separator SEPARATOR
                        character used as separator in csv file (default: ;)

Template File

A template file with the name template.txt will be automaticall generated. It will be user to create the ledger entries. It looks something like

{date} {payee} {posting} {purpose}
    ; md5sum: {md5sum}
    {debit_account:<60}    {currency} {debit}
    {credit_account:<60}    {currency} {credit}
    

Each name inside curly brackets can specify a value that can come from either a named csv column, a default value (from the config.yml) or an input prompt (also from the config.yml).

Converting from csv to ledger without requesting a FinTS API

With the argument --no-csv the program will not create a csv file with banking transactions itself (default ist fints -> csv -> ledger). Instead, it will convert directly from a csv file to ledger. This is useful when all transactions have already been downloaded or when converting from another source than FinTS to ledger.

The csv file must provide a headline which names the columns. The column names are then used to fill the values in the template file. Example:

date;amount;currency;payee;posting;purpose
2017/04/26;167.31;EUR;Billy, Bill;bonus;for vacation
2017/04/27;-130;EUR;John, Smith;debit entry;monthly electricity payment