bmf-steuerrechner-api
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3.1.0 • Public • Published

bmf-steuerrechner-api

Provides a javascript api to access the Lohn- und Einkommensteuerrechner by the Bundesministerium der Finanzen. Reference: https://www.bmf-steuerrechner.de/interface/einganginterface.xhtml

It exposes the endpoint:

export async function bmf(
  input: {
    [ k: string ]: number
  },
  year: number,
  month?: number
): Promise<BMFResponse>

signature

takes input, year and month. For some years, the BMF has published more than one calculation period; otherwise month is optional. Months range is 1..12. input being a {} containing legal values for PAP input. e.g.:

  • Lohnzahlungszeitraum (LZZ) = 1 (Jahr)
  • Einkommen (RE4) = 2500000 (Cent)
  • Steuerklasse (STKL) = 1
const result = await bmf( { LZZ:1, STKL:1, RE4:2500000 }, 2016 );
console.log( result );

yields

{ jahr: '2016',
  eingaben:
   { LZZ: { value: '1', status: 'ok' },
     STKL: { value: '1', status: 'ok' },
     RE4: { value: '2500000', status: 'ok' } },
  ausgaben:
   { BK: { value: '0', type: 'STANDARD' },
     BKS: { value: '0', type: 'STANDARD' },
     BKV: { value: '0', type: 'STANDARD' },
     LSTLZZ: { value: '267400', type: 'STANDARD' },
     SOLZLZZ: { value: '14707', type: 'STANDARD' },
     SOLZS: { value: '0', type: 'STANDARD' },
     SOLZV: { value: '0', type: 'STANDARD' },
     STS: { value: '0', type: 'STANDARD' },
     STV: { value: '0', type: 'STANDARD' },
     VKVLZZ: { value: '0', type: 'STANDARD' },
     VKVSONST: { value: '0', type: 'STANDARD' },
     VFRB: { value: '100000', type: 'DBA' },
     VFRBS1: { value: '0', type: 'DBA' },
     VFRBS2: { value: '0', type: 'DBA' },
     WVFRB: { value: '1177200', type: 'DBA' },
     WVFRBO: { value: '0', type: 'DBA' },
     WVFRBM: { value: '0', type: 'DBA' } } }

License

This project is licensed under the terms of the MIT license.

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3.1.0

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