Comparing Rhode Island vs. Massachusetts income tax comes down to this: Massachusetts applies a flat 5% to most income and adds a 4% surtax on earnings above roughly $1 million, while Rhode Island runs income through three progressive brackets from 3.75% to 5.99%. For middle earners, Rhode Island usually costs less. For high earners above the million-dollar line, Massachusetts costs meaningfully more. For retirees and cross-border commuters, the answer depends on the details.
The Rate Structures Side by Side
Rhode Island taxes personal income at three graduated rates, with only the portion of income inside each range taxed at that range’s rate.1Rhode Island General Assembly. Rhode Island Code 44-30-2.6 – Rhode Island Taxable Income Rate of Tax For tax year 2025, the brackets run 3.75% on the first $79,900 of taxable income, 4.75% from $79,900 to $181,650, and 5.99% on everything above that.2Rhode Island Division of Taxation. ADV 2024-26 Inflation Adjustments The thresholds adjust each year for inflation.3Rhode Island Division of Taxation. Inflation-Adjusted Amounts Set for Tax Year 2026
Massachusetts is simpler on the surface. Wages, interest, and dividends are all taxed at a flat 5%.4Mass.gov. Personal Income Tax for Residents A worker earning $50,000 and one earning $500,000 pay the same percentage on their wages. The complication is the Fair Share Amendment, effective in 2023, which adds a 4% surtax on the portion of annual income above roughly $1 million.5Mass.gov. Massachusetts General Laws c.62 Section 4 – Rates of Tax The threshold was $1,083,150 for tax year 2025 and adjusts each year. Above the line, the effective rate becomes 9%.
Capital gains follow the same pattern in each state, with one sharp exception. Rhode Island taxes all gains as ordinary income through the three brackets, so nothing exceeds 5.99%. Massachusetts taxes long-term gains at the flat 5% but hits short-term gains at 8.5%.6Mass.gov. Massachusetts Tax Rates That 8.5% is among the highest short-term rates in the country and catches some taxpayers off guard.
What Gets Sheltered Before the Rates Apply
The headline rates don’t apply to your full income. Each state carves off a baseline amount first, and the two states do it differently.
Rhode Island uses a standard deduction. For tax year 2026, it’s $11,200 for single filers and $22,400 for married couples filing jointly. There is a phase-out: it starts shrinking once federal adjusted gross income exceeds $261,000 and disappears entirely at $290,800.3Rhode Island Division of Taxation. Inflation-Adjusted Amounts Set for Tax Year 2026
Massachusetts has no standard deduction. Instead, it uses personal exemptions of $4,400 for single filers and $8,800 for joint filers, with additional exemptions of $700 for taxpayers age 65 or older, $2,200 for legal blindness, and $1,000 per dependent.7Mass.gov. Massachusetts Personal Income Tax Exemptions These exemptions do not phase out.
Rhode Island’s larger deduction shelters more income upfront for middle earners. At higher incomes, the phase-out narrows the practical gap in taxable income between the two states.
Retirement Income
This is where the two states diverge most sharply. If you’re choosing between them for retirement, the details matter more than the headline rates.
Massachusetts fully excludes Social Security benefits from state gross income, no matter how much other income you have.8Mass.gov. Massachusetts Tax Information for Seniors and Retirees Rhode Island also exempts Social Security, but only if you’ve reached full retirement age as defined by the Social Security Administration and your federal AGI is below $107,000 for single filers or $133,750 for joint filers.9Rhode Island Division of Taxation. Retirement Income Guide Tax Year 2025 Cross those AGI thresholds and Social Security benefits go into Rhode Island’s regular taxable income.
On pensions, Massachusetts exempts distributions from federal employee contributory pension plans, including U.S. Postal Service pensions, and allows a deduction of up to $2,000 for contributions to qualifying retirement plans.10Mass.gov. Tax Treatment of Government Pensions in Massachusetts Private pensions and 401(k) distributions are taxed at the flat 5%. Rhode Island runs most pension and retirement distributions through its three brackets as ordinary income, so a moderate-income retiree may actually pay a lower rate than in Massachusetts thanks to the 3.75% starting bracket.
The practical takeaway: retirees with modest income who qualify for Rhode Island’s Social Security exemption often come out ahead there. Retirees whose income pushes past Rhode Island’s AGI thresholds usually do better in Massachusetts, since the blanket Social Security exclusion protects a larger share of their income.
If You Live in One State and Work in the Other
Wages are sourced to the state where the work is physically performed. That rule governs how commuter income gets divided. If you work in a Massachusetts office five days a week, all of that income is Massachusetts-source, even if you drive home to Rhode Island every night. Split your days between two offices and you allocate the wages by days worked in each location.
Both states protect against double taxation through a credit for taxes paid to another jurisdiction. Rhode Island residents who pay Massachusetts tax on Massachusetts-source wages subtract that Massachusetts tax from their Rhode Island bill, capped at the Rhode Island tax attributable to the same income.11Rhode Island Department of State. Credit for Income Taxes of Other States Massachusetts offers the mirror credit for its residents who paid tax to Rhode Island.12Mass.gov. Learn About the Income Tax Paid to Another Jurisdiction Credit
For a Rhode Island resident working in Massachusetts, the sequence looks like this: file the Massachusetts nonresident return first, pay the 5% Massachusetts tax on your Massachusetts wages, then claim the credit on your Rhode Island resident return. Because Massachusetts’s flat 5% often exceeds what Rhode Island would have charged the same income through its lower brackets, Rhode Island residents commuting to Massachusetts frequently owe little or nothing additional to Rhode Island on those wages.
Remote work makes the sourcing question harder. If you live in Rhode Island and work from home for a Massachusetts employer, keep records of where you were physically located each work day. During the pandemic, Massachusetts temporarily treated income earned by nonresidents telecommuting from home as Massachusetts-source income if they had previously worked at a Massachusetts location. That emergency rule has expired, but it shows how far Massachusetts can push sourcing arguments. Documentation is your defense.
Residency Decides Which State Taxes Everything
Nonresidents pay tax only on income earned inside a state. Residents pay tax on their worldwide income. So the residency question is the biggest one in any comparison.
Rhode Island treats you as a resident if you’re domiciled in the state, or if you maintain a permanent place of residence there and spend more than 183 days of the year in Rhode Island.13Rhode Island Division of Taxation. Individual Tax Filing Requirements Domicile means the place you consider your permanent home and intend to return to. Once established, a Rhode Island domicile remains until you can show all three elements of a change: intent to leave the old domicile, intent to establish a new one, and actual physical presence in the new location.
Massachusetts uses the same framework: domicile in Massachusetts, or a permanent place of abode plus more than 183 days in the state. If both states could claim you as a resident under their statutory tests, the domicile test generally controls. Married couples are normally treated as having the same domicile.
Getting residency wrong is the most expensive mistake a cross-border taxpayer can make. If both states claim you, you can face full taxation in each and have to unwind the overlap through credits or appeals.
Which State Costs More at Your Income Level
Raw rates only tell part of the story. Total bills depend on income level, income type, and how the deduction or exemption structure treats you.
A single filer earning $75,000 in wages typically pays less in Rhode Island. The larger standard deduction shelters more income than the Massachusetts exemption does, and the entire taxable balance falls within Rhode Island’s 3.75% bracket. Massachusetts applies its flat 5% to nearly everything above the $4,400 exemption.
At around $250,000, the gap narrows and can flip. A single filer at that level hits Rhode Island’s top 5.99% bracket on a meaningful slice of income, while Massachusetts still charges 5% across the board. Depending on other deductions and credits, Massachusetts can produce the smaller bill here.
Above roughly $1 million, Massachusetts is clearly more expensive. The 4% surtax pushes the effective rate on income above the threshold to 9%, well beyond Rhode Island’s 5.99% ceiling. High earners with substantial short-term capital gains face a wider gap still, since Massachusetts taxes those at 8.5% while Rhode Island caps everything at 5.99%.
Retirees follow a different curve. Social Security plus a modest pension often costs less in Rhode Island, thanks to the 3.75% starting bracket and the Social Security exemption for those who qualify. Once retirement income crosses Rhode Island’s AGI thresholds, Massachusetts’s blanket Social Security exclusion tends to win.