What Connecticut residents actually pay
Connecticut taxes ordinary income at a top marginal rate of 6.99%. RSU settlement value, NSO exercise spread, and ESPP discount income all count as ordinary wages for this purpose and flow through the state's normal brackets.
High earners face 6.99% on top-bracket ordinary income.
Two taxable events, one plan
An ESPP produces two taxable events. The first is ordinary discount income at purchase (for non-qualified plans or disqualifying dispositions of qualified plans), which Connecticut taxes at up to 6.99%. The second is capital gain or loss on sale, taxed at long- or short-term rates federally and at 6.99% if held as ordinary state income.
Qualifying disposition math
A qualifying disposition requires you hold the shares two years from offering date and one year from purchase. Holding that long converts some of the gain to long-term federal capital gains, which for a high earner in Connecticut still costs 6.99% state plus federal LTCG rates. The trade-off: two years of concentration risk in your employer's stock.
Payroll reporting
Discount income at purchase flows through W-2 Box 1 and is withheld on payroll. The cost basis reported on Form 1099-B usually excludes the W-2 income component, so you must adjust on Form 8949 to avoid double-taxation. This is the most common ESPP filing error.
Frequently asked
- Does Connecticut tax RSU income the same as wages?
- Yes. Connecticut treats RSU ordinary income as wages, taxable at the state's top marginal rate of 6.99%. Supplemental-wage federal withholding (22%, or 37% above $1M YTD) does not adjust for state withholding, so you often owe extra at filing.
- What happens if I exercise ISOs while living in Connecticut?
- Connecticut does not run a separate state AMT, so only federal AMT applies. You still need to model the bargain element carefully if you plan a cashless exercise-and-sell.
- I moved to Connecticut from another state. Who taxes my vesting RSUs?
- Most high-tax states (CA, NY, MA) source RSU ordinary income to workdays between grant and vest. If your grant pre-dates your Connecticut move, expect the old state to tax the portion of each tranche attributable to workdays earned there. Connecticut taxes the remainder.
- Can I reduce Connecticut taxes by timing my RSU sales?
- Connecticut taxes long-term capital gains at the same rate as ordinary income, so timing alone does not produce a state savings — only federal. Holding for 12 months still halves the federal rate on gains above basis.
Related
- RSU taxes — Connecticut
- ISO exercises and AMT — Connecticut
- Capital gains tax — Connecticut
- QSBS — Connecticut
- Moving to or from Connecticut with unvested equity: trailing nexus rules — Connecticut
- RSU vesting schedules — Connecticut
- NSO exercises and state tax — Connecticut
- 401(k) and retirement accounts — Connecticut
- Leaving Connecticut: how to cleanly break residency before a liquidity event — Connecticut
- Connecticut equity-comp overview