


Step 3: Complete the income tax forms and mail them to the IRS and/or state tax agency.Step 2: Use the tax calculator and tools for the respective tax year, especially this tax penalty calculator.Step 1: Download the respective tax forms for the tax year in question.recommends you take the following steps as soon as possible: If you expect to owe taxes for one or multiple previous tax years and you have not filed nor paid the taxes due, you will most likely be subject to late filing and late payment penalties. Prior year state tax return forms are on the respective state tax pages on. Keep in mind that these tax calculators are free and are intended to give you an accurate estimate of your tax refund or tax liability for the given tax year. However, provides easy access to all the respective federal income tax year forms and the associated tax year tax calculators. You cannot e-file federal or state income tax returns for Tax Year 2021 and before. See more tax deadlines for tax returns, tax estimates, and more: tax deadlines for filing income tax returns. View a list of previous year tax forms you can complete, sign, and download via.
