Rhode Island calendar and forms

Rhode Island keeps the federal calendar: the RI-1040 is due April 15, 2027, the four estimated payments fall on the federal dates, and an extension runs six months to October 15. Two things are different enough to catch people. The extension is not automatic; it comes from filing Form RI-4868 with a proper estimate of the tax, or from a federal extension if nothing is owed to Rhode Island. And the property tax relief claim on Form RI-1040H is due April 15 no matter what, because an extension of the RI-1040 does not extend it. Add one date that exists this year only: the tax amnesty, open from December 3, 2026 to February 15, 2027 for anything owed for 2025 and earlier.

The form side is a single return with schedules that attach only when they apply. Because Rhode Island starts from federal AGI and has no itemized deductions, most filers touch the RI-1040, Schedule W for withholding, Schedule E for exemptions, and Schedule M if they have a modification. The rest of the list is for retirees, people who moved or work across the state line, people who owe estimated tax, and people fixing a return already filed.

The 2027 filing season, dated

How the extension really works

Rhode Island does not grant an extension to everyone automatically. Form RI-4868, filed by April 15, gives six months to file, provided it shows a properly estimated tax and pays what is estimated to be due. If you owe nothing to Rhode Island with the extension and you filed a federal Form 4868 for the same period, no RI-4868 is needed; attach a copy of the federal form or the IRS acknowledgment to the RI-1040 when you file it. Either way the extension is of time to file, not of time to pay: tax unpaid at April 15 draws the late-payment penalty of one-half of 1% a month, up to 25%, and interest at 12% a year (verify penalty terms). A return filed late with no extension in place adds the late-filing penalty of 5% a month, up to 25%, on the unpaid tax.

The RI-1040H does not follow. The property tax relief claim is due April 15 whether or not the RI-1040 is extended, and a claim filed with an extended return in October is late. The same is true of the lead abatement credit on RI-6238. A retiree who wants more time for the return should still get the RI-1040H in by April 15, either with a return filed on time or on its own.

Estimated payments

Rhode Island requires estimated payments when the tax expected for the year, after withholding and credits, is more than $250. The safe harbor is 80% of this year’s Rhode Island tax or 100% of last year’s, paid in four timely installments; there is no higher tier for higher incomes. Underestimate interest is figured on Form RI-2210, or on the shortcut RI-2210A when the payments were equal, at the Division’s underpayment rate of 12% a year for 2026. Because the retirement modifications stop at IRAs, the people most often caught are not the self-employed alone: a retiree taking a large IRA distribution or a Roth conversion with no Rhode Island withholding, and a retiree whose Social Security and pension modifications disappeared because federal AGI crossed the limit, both owe tax that nothing withheld.

The forms, in the order a filer meets them

Filing, paying and checking a refund

The Division calls electronic filing the preferred method, and nearly every Rhode Island return goes in with the federal return through tax software; the state refund arrives separately. Preparers who file 100 or more Rhode Island returns a year must e-file. Individuals may still file on paper, and the forms are on the Division’s site for anyone preparing a return by hand. Rhode Island Free File lets taxpayers who meet the vendors’ requirements prepare and e-file both the federal and Rhode Island returns at no charge through the Division’s listed software partners; VITA and AARP Tax-Aide sites prepare returns free for people who qualify. Rhode Island was not an IRS Direct File state, and the IRS has since ended the program.

Payments go through the Rhode Island Taxpayer Portal at taxportal.ri.gov, which the Division describes as the best way to file and pay. An account links to your tax records with a PIN the Division mails; anyone up against a due date without an account can use the portal’s Same-day Services guest payment. Estimated payments, extension payments and balances due can all be made there. By mail, checks are payable to R.I. Division of Taxation and go, with the RI-1040V, to One Capitol Hill, Providence, RI 02908-5807; returns claiming a refund go to the 02908-5806 ZIP (verify current addresses). Refund status is checked with the Division’s Where’s My Refund tool on tax.ri.gov. The Division pays interest on a refund issued more than 90 days after the later of the due date or the date a complete return was filed, at 7.25% for 2026.

A return already filed is corrected by filing a new RI-1040 with the Amended box checked, the Amended Supplement explaining the changes, and every form and schedule that makes up the return, not just the ones that changed. A federal change, whether from an amended Form 1040 or an IRS adjustment, must be reported to Rhode Island within 90 days of the amended federal return or the final federal determination.

The Division’s personal income tax section answers at 401-574-8829, option 3, and at Tax.Assist@tax.ri.gov, 8:30 a.m. to 3:30 p.m. on business days. The office is at One Capitol Hill in Providence.