How Rhode Island income tax works: federal AGI, three rates, and a deduction that disappears

Rhode Island taxes income in three steps: 3.75% on the first $82,050 of taxable income, 4.75% on the next $104,400, and 5.99% on everything above $186,450. The same brackets apply to every filing status, single or joint. The return starts from federal adjusted gross income, line 11 of Form 1040, and never looks at federal taxable income. In place of the federal standard deduction and itemized deductions, Rhode Island gives its own standard deduction ($11,200 single, $22,400 joint, $16,800 head of household for 2026) and a $5,250 exemption for each person on the return. There is no itemizing, no local income tax, and no separate rate for capital gains. The one feature that surprises people is at the top: once modified federal AGI passes $261,000, the standard deduction and the exemptions shrink together in four steps and are gone at $290,800.

Because the starting point is AGI, everything the federal return does below that line is invisible here. The federal standard deduction, the extra deduction for age, the $6,000 senior deduction, the new deductions for tips, overtime and car-loan interest, the qualified business income deduction and the $40,000 SALT cap all happen after AGI, and none of them reach the RI-1040. The Division of Taxation said so for tips, overtime and car-loan interest in Advisory 2025-20: Rhode Island does not allow them, and no add-back is needed because they were never taken out. A tipped worker who owes no federal tax on $8,000 of tips still owes Rhode Island $300 on them at 3.75%.

Who files

A full-year resident is anyone domiciled in Rhode Island, or anyone who keeps a permanent place of abode here and spends more than 183 days of the year in the state. Residents report all income from everywhere and take a credit on RI Schedule II for tax paid to another state on income taxed by both. Part-year residents and nonresidents file Form RI-1040NR instead and allocate on its schedules. A resident who has to file a federal return has to file an RI-1040; a resident who does not file federally still files if income exceeds the Rhode Island standard deduction plus exemptions. Married couples who file jointly for federal purposes generally file jointly here, and the filing status on the Rhode Island return has to match the federal one. Filing below the threshold is still worth doing when there is withholding to recover or an earned income credit to claim.

Where it starts: federal AGI

Line 1 of the RI-1040 is federal adjusted gross income. That is income after the adjustments on federal Schedule 1 (IRA and HSA contributions, student loan interest, half of self-employment tax, educator expenses) but before any deduction that follows. So an above-the-line move cuts Rhode Island tax and a below-the-line one does not. Putting $7,000 into a traditional IRA saves a 4.75%-bracket filer $333 of Rhode Island tax; giving $7,000 to charity saves nothing here, however it is treated federally.

The flip side is that Rhode Island gives no deduction for mortgage interest, property tax, charitable gifts or medical bills, whether or not you itemize federally. The RI-1040 has no itemized deduction line at all. Homeowners get the standard deduction and nothing more, which is why the state’s only property-tax relief on the return is a credit, Form RI-1040H, limited to older and disabled residents of modest income.

The modifications: Schedule M

Line 2 of the RI-1040 is net modifications from RI Schedule M, where Rhode Island adds a few things to AGI and subtracts a longer list. For most working households the schedule is blank. For retirees and for anyone who owns a business, it is where the real work is.

Schedule M says what it does not list is not allowed. The retirement subtractions are the ones with dollars behind them for most people, and their tests are strict: age and income both, with no partial allowance one dollar over the income line. They are covered in Rhode Island for retirees.

Line 3 is modified federal AGI: line 1 plus or minus line 2. Two things hang on it. It is the income the tax is figured on after the deduction and exemptions, and it is the number tested against the $261,000 phase-out.

The standard deduction and the exemptions

Rhode Island’s standard deduction for 2026 is $11,200 for a single filer or a married person filing separately, $22,400 for a joint return or a qualifying surviving spouse, and $16,800 for a head of household. Everyone takes it. There is no choice to itemize instead and no extra amount for age or blindness. Separately, line 6 allows $5,250 for each exemption: you, your spouse, and each dependent. A couple with two children claims $22,400 plus $21,000, or $43,400, before a dollar is taxed. A single retiree claims $16,450.

Both figures phase out together, and the mechanics are worth knowing because the step is abrupt. The worksheet subtracts $261,000 from modified federal AGI. If the excess is zero or less, you keep the full amounts. If not, divide the excess by $7,450 and round up to the next whole number; that is the number of steps. One step leaves 80% of the deduction and exemptions, two steps 60%, three 40%, four 20%, and an excess over $29,800, meaning modified AGI above $290,800, leaves nothing. The same test and the same percentages apply at every filing status, so a joint return hits the wall at the same income a single return does.

Between $260,000 and $275,000 the tax rises $1,938 on $15,000 of added income, an effective rate of about 13% on that slice even though the stated top rate is 5.99%. A Roth conversion, a large capital gain or a bonus that lands in that band costs more than the bracket suggests.

The rates

Line 7 is Rhode Island taxable income: modified AGI minus the standard deduction minus exemptions. The tax on it comes from one schedule for every filing status.

From Advisory 2025-22, the Division’s inflation adjustments for 2026. The brackets were $79,900 and $181,650 for 2025. Trusts and estates use a compressed schedule with breaks at $3,300 and $10,450.

Capital gains, dividends, interest, rent, unemployment and gambling winnings are all taxed on this schedule at the same rates as wages. There is no lower rate for long-term gains and no exclusion; the gain arrives in federal AGI already netted against losses, and that is the figure Rhode Island taxes. No Rhode Island city or town levies an income tax, so this schedule is the whole of it. The 1% surtax on taxable income over $1 million that the General Assembly enacted in June 2026 begins with tax year 2027. It is not on the 2026 return filed in spring 2027.

The credits

Rhode Island’s credits are few. Two are refundable, meaning they are paid out even when they exceed the tax; the rest only reduce tax to zero.

The $330-per-child Rhode Island child tax credit enacted in June 2026 applies to tax years beginning on or after January 1, 2027. There is no state child credit on the 2026 return; each child is a $5,250 exemption instead. Family credits are in Credits and breaks for Rhode Island families.

Withholding, estimated payments and use tax

Employers withhold from Form RI W-4 using the Division’s 2026 withholding tables, which are built on the same three brackets. For a wage earner with nothing else going on, the withholding comes close. Pension payers and IRA custodians will withhold Rhode Island tax on request; a retiree whose pension qualifies for the $50,000 subtraction may want little or none.

Anyone who expects to owe more than $250 after withholding and credits must make estimated payments on Form RI-1040ES, due April 15, June 15 and September 15, 2026 and January 15, 2027. The underpayment charge is avoided if payments and withholding reach 80% of this year’s tax or 100% of last year’s, whichever is smaller, paid in on time; the 2023 Form RI-2210 states both tests (verify against the 2026 form). Interest on underpayments runs at 12% a year, so the self-employed, landlords and anyone with a large gain should not wait for April.

Schedule U on the RI-1040 is where you report use tax at 7% on things bought out of state or online without sales tax, with a safe-harbor lookup of 0.08% of federal AGI for the small stuff and single purchases of $1,000 or more listed separately. The attestation box has to be checked either way.

How to file

The return is due April 15, 2027. Form RI-4868 gives six more months to file but not to pay; if nothing is owed and you filed a federal extension, you can attach the federal Form 4868 to the Rhode Island return instead of filing RI-4868. Form RI-1040H has no extension at all. Most returns are e-filed with the federal return; preparers who file 100 or more Rhode Island returns must e-file, and the Division runs a free-file program through listed software vendors for taxpayers under the income limit. Unpaid tax draws 12% interest plus a late-payment penalty of 0.5% a month; a return filed late without an extension adds 5% a month to a maximum of 25%. Dates, forms and where to check a refund are in Rhode Island calendar and forms.

What trips people up

• Expecting the federal tips, overtime or senior deduction to lower Rhode Island tax. None of them reach the return.
• Claiming the Social Security or pension subtraction when one spouse is under full retirement age, or when AGI is over the limit by a few hundred dollars.
• Taking the pension subtraction on an IRA distribution. IRAs of every kind are taxed in full.
• Leaving out-of-state municipal bond interest off Schedule M, or leaving Treasury interest on the return.
• A CollegeBound contribution nobody mentioned, because the federal return never asked.
• A Roth conversion or stock sale that pushes modified AGI into the $261,000 to $290,800 band and takes the deduction and exemptions with it.
• Filing Form RI-1040H in October with the extended return. It was due April 15.
• Bonus depreciation on a Schedule C, E or F carried into Rhode Island with no add-back.
• Treating the extension as an extension to pay.