Rhode Island Filing Due Date: Corporation tax returns are due by March 15 — or by the 15th day of the 3rd month following the end of the taxable year (for fiscal year filers). Partnership tax returns are due by April 15 — or by the 15th day of the 4th month following the end of the taxable year (for fiscal year filers).
Extended Deadline with Rhode Island Tax Extension: Rhode Island offers a 6-month extension. For corporations, a Rhode Island tax extension will move the filing deadline to September 15 (for calendar year filers). For partnerships, a Rhode Island tax extension will move the filing deadline to October 15 (for calendar year filers).
Rhode Island Tax Extension Form: To request a Rhode Island extension, file Form RI-7004 by the original deadline of your return.
Rhode Island Extension Payment Requirement: An extension of time to file is not an extension of time to pay. To avoid penalties and interest, your Rhode Island estimated tax liability must be fully paid by the original due date. Timely payment of your state tax is also a requirement for getting a Rhode Island extension. You can make an extension payment with Form RI-7004, or pay electronically through the Business Tax Filings portal: www.ri.gov/taxation/business
Rhode Island Tax Extension Tip: Form RI-7004 can be used by C corporations, S corporations, and partnerships to request an extension of time to file their Rhode Island tax return.