You may well have to do some sifting to find precisely what you need. The IRS website search function is useful, but as with government sites, it returns a lot of information. The IRS provides a comprehensive Tax Topic Index covering the major tax questions.

Double-check local tax specifics using the FindLaw State Tax Law finder. The same is true for student loan payments and interest, and so on.Īlso, individual states have specific tax laws. If you contribute to a Roth IRA, for instance, you need to know the specific contribution limit for your tax status: IRS Roth IRA Limits. If you want an actual duplicate photocopy of your tax return, download Form 4506 (Request for Copy of Tax Return) from IRS.gov. However, these only cover tax reforms and structures. As a quick example, you can use VLOOKUP to find and return values in a tax table, while you can use ISPMT to calculate the amount of interest paid on your outstanding loans.Īlso, handy for building your own income tax calculator spreadsheet is the IRS 1040 Tax and Earned Income Credit Tables. Read more about what these Excel formulas do and how to use them properly.

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