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furusato-tax

v1.2.1

Published

ふるさと納税の限度額シミュレーション

Readme

ふるさと納税限度額計算ライブラリ

寄付者の収入や家族構成等をもとに、ふるさと納税が全額控除される寄付金額を計算するnpmライブラリです。

ふるさと納税制度については、総務省のふるさと納税ポータルサイト等を参照して下さい。

インストール方法

npmまたはyarnを用いてインストールできます。

// with npm
$ npm install furusato-tax

// with yarn
$ yarn add furusato-tax

利用方法

詳細版のシミュレーション

import { FurusatoTax } from "furusato-tax";

const house = new FurusatoTax({ selfSalary: 10_000_000 });
console.log(house.minimumSelfPayThreshold()); //=> 225852

収入と家族構成のみで計算する簡易版シミュレーション (参考: 総務省|ふるさと納税ポータルサイト|ふるさと納税のしくみ|税金の控除について)

import { minimumSelfPayThresholdEasySimulation, FamilyType } from "furusato-tax";
console.log(minimumSelfPayThresholdEasySimulation(10_000_000, FamilyType.Single)); //=> 176000

貢献の仕方

本リポジトリに提案や修正がある場合は、IssueやPull Requestを作成して下さい。

開発環境の構築方法

$ yarn install
$ yarn run prepare

テスト実行方法

$ yarn run test

License

本ソフトウェアは、Apache-2.0ライセンスのもとで提供されています。