Our Tax Calculation API estimates a UserUser - A single end-user of your application. Each user has a unique userId, which should be stored in your database and used to make API requests on behalf of this individual.’s tax liability on self-employment incomes. Our API incorporates a range of income types, offset against business expenses, to estimate taxes owed at both the federal and state level. If available, Abound® also considers year-to-date tax payments in order to calculate a user’s tax liability.

Tax calculations are used by banks, invoice and commission payment platforms, marketplaces, bookkeeping solutions, mobile wallets and other independent contractor tools.

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