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Tax year 2027 · RI

Rhode Island ISO AMT in 2027

The 2027 federal AMT exemption, phase-out thresholds, and Rhode Island (no state AMT) for ISO exercises.

The 2027 picture for Rhode Island residents

In 2027, Rhode Island residents paid federal ordinary income tax at brackets topping out at 37%, plus Rhode Island state tax up to 5.99%, plus Medicare (1.45% + 0.9% additional above $200k single MAGI), plus a federal supplemental-withholding layer on RSU-style income.

2027 AMT exemption

The 2027 federal AMT exemption was $88,100 for single filers. The exemption phased out at 25 cents per dollar of AMTI above $626,350, fully eliminating the exemption for higher earners. That is why ISO exercises in Rhode Island during 2027 produced AMT bills that surprised people running first-order mental math.

Rhode Island layer in 2027

Rhode Island did not impose a separate state AMT in 2027, so federal AMT was the only layer. State ordinary tax still applied to any disqualifying disposition income recognized in the same year.

Frequently asked

What supplemental-wage withholding rate applied to RSU income in Rhode Island in 2027?
The federal supplemental-wage withholding rate was 22% on the first $1,000,000 of supplemental wages per calendar year, rising to 37% above that. Rhode Island state withholding ran up to 5.99% at the top bracket.
Did Rhode Island recognize federal QSBS exclusion in 2027?
Rhode Island's conformity status varies year by year and by type of taxpayer. As of 2027, most states other than California, New Jersey, Pennsylvania, and Mississippi either conformed fully or partially to Section 1202. Check the 2027 filing instructions for the specific language.
What was the top federal ordinary bracket in 2027, and how did it apply to Rhode Island residents?
The 37% federal ordinary bracket started around $626,350 of taxable income for single filers in 2027. Rhode Island stacked 5.99% on top of that for high earners, producing a combined top marginal rate of approximately 43.0%.

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