The additional time, provided in Notice 202321, to file an amended return is automatic. To claim a refund, you must file an amended return within 3 years after the date you filed your original return or 2 years after the date you paid the tax.Dear Honorable IRS Commissioner, Tax season is coming. File Form NJ1040NR for the appropriate year, and write the word "Amended" in bold letters in the upper right hand corner of the return. Sales Tax Rates, Additional Sales Taxes, and Fees. Tax Bulletin ST-825 (TB-ST-825). Round the amount of tax due up or down to the nearest cent. Gather and fill out the following:. Our IRS-certified volunteers will be available in person and virtually to do your taxes for free. Need to tackle your back taxes?