Delaware
Vermont
Maryland
MinnesotaRSU $15,000
$9,504
State $1,048.50 · Total withheld $5,496
All states
2026Rank #7
2026Rank #7Connecticut RSU Tax 2026
~6.99% est. — $3,495 state withholding, $32,641 net on $50,000 RSU vest (100 shares × $500 FMV) with $150,000 other annual income (flat supplemental method).
By Sammy S. · Founder · AuthorUpdated for 2026
~6.99% est.
Rate
$3,495
State tax
$17,359
Total withheld
#7
National rank
Connecticut RSU withholding at a glance
Supplemental rate
~6.99% est.
State tax (vignette)
$3,495
Total withheld
$17,359
Net RSU
$32,641
No published flat supplemental rate (aggregate / table method). Educational estimate ≈6.99% — confirm with payroll tables. Rank #7 on $50,000 RSU vest (100 shares × $500 FMV) with $150,000 other annual income (flat supplemental method). Federal $11,000 + FICA $2,864 on this vignette.
Key takeaways — Connecticut RSU tax
- Connecticut ranks #7 at ~6.99% est. (~$3,495 state tax on $50,000 RSU vest (100 shares × $500 FMV) with $150,000 other annual income (flat supplemental method)).
- Total vignette withholding ~$17,359 (federal $11,000 + FICA $2,864 + state $3,495); net ~$32,641.
- No published flat supplemental rate (aggregate / table method). Educational estimate ≈6.99% — confirm with payroll tables.
- Federal flat supplemental remains 22% regardless of state (IRS Pub. 15).
- Model custom amounts at /rsu-tax-calculator.
Connecticut vs similar supplemental rates
States with supplemental rates closest to Connecticut (~6.99% est.). Connecticut: $3,495 state tax on the vignette.
Modeled Connecticut RSU stub ($50,000 RSU vest (100 shares × $500 FMV) with $150,000 other annual income (flat supplemental method))
Line amounts are calculated from our engine — the same engine as the RSU tax calculator. Not a substitute for your employer’s stub.
| Line | Amount | Note |
|---|---|---|
| Federal income tax (supplemental) | $11,000 | 22% flat (Pub. 15) on this vignette |
| FICA (SS + Medicare) | $2,864 | 6.2% SS + 1.45% Medicare (Additional Medicare if over $200k YTD) |
| CT state tax | $3,495 | ~6.99% est. |
| Net RSU | $32,641 | After $17,359 total withheld |
Connecticut withholding at different RSU sizes
Same $150,000 other annual income; flat supplemental method. State rate ~6.99% est..
RSU $50,000
$32,641
State $3,495 · Total withheld $17,359
RSU $100,000
$66,971
State $6,990 · Total withheld $33,029
RSU $250,000
$169,961
State $17,475 · Total withheld $80,039
How to read this page
Connecticut RSU / supplemental withholding in 2026
No published flat supplemental rate (aggregate / table method). Educational estimate ≈6.99% — confirm with payroll tables.
On $50,000 with $150,000 other annual income, modeled state withholding is $3,495 and after-tax share value is about $32,641.
Compared with New York ($5,850 state) and Texas ($0 state) on the same vignette, Connecticut sits at rank #7.
Connecticut: aggregate method (no published flat RSU rate)
Connecticut does not publish a single flat supplemental percentage for ordinary RSU vests. Employers withhold using graduated tables / aggregate rules.
The 6.99% figure on this page is an educational proxy so the vignette can be ranked — it is not a statute-published flat RSU rate.
Ask payroll which table and period they used; stubs can differ from this estimate.
How Connecticut payroll usually handles RSU vests
When the RSU vest is paid separately, many employers apply ~6.99% est. state rules plus federal 22% and FICA.
If the RSU vest is combined with regular wages, withholding may follow the aggregate method instead of these flat percentages (IRS Pub. 15 §7).
Employees should reconcile annual liability on Form 1040 — paycheck withholding is only an estimate.
How withholding scales with RSU size
At a constant rate, state tax scales roughly linearly: double the RSU vest and state withholding roughly doubles (before exemptions or method changes).
Above $1M supplemental wages in a year with one employer, federal withholding jumps to 37% on the excess (Pub. 15).
What this profile does not include
Local city or municipal wage taxes (for example NYC resident tax, Philadelphia wage tax, Ohio city income tax) are not in these figures.
California SDI, state disability, paid family leave premiums, and local school taxes are outside the supplemental income-tax line.
Confirm current employer guides linked in the sources section before relying on a stub estimate.
Who this Connecticut RSU page helps
Useful if…
- •Connecticut employees reading an RSU vest stub
- •Candidates comparing Connecticut offers to other states
- •Payroll teams verifying CT supplemental setup
Use official tools if…
- •City or local wage taxes not listed here
- •Signing RSU vests paid with the first regular paycheck (aggregate method)
- •Year-end true-up if under-withheld at 22% federal
Connecticut RSU withholding checklist
Quick steps before relying on this vignette for payroll decisions.
- 1Confirm Connecticut’s current supplemental rule with the state tax agency.
- 2Ask payroll which withholding method they use for RSU vests.
- 3Check federal, FICA, and state lines separately on the stub.
- 4Run scenarios at /rsu-tax-calculator.
- 5Plan estimated payments if your marginal bracket exceeds 22%.
Connecticut RSU withholding ladder
| RSU | State tax | Total withheld | Net |
|---|---|---|---|
| $15,000 | $1,048.50 | $5,496 | $9,504 |
| $50,000 | $3,495 | $17,359 | $32,641 |
| $100,000 | $6,990 | $33,029 | $66,971 |
| $250,000 | $17,475 | $80,039 | $169,961 |
Compare Connecticut with another state
Compare any two states
Supplemental RSU withholding on a $50,000 vest (100×$500) with $150,000 other income.
Related states
Connecticut RSU tax FAQs
Connecticut uses about 6.99% for flat supplemental withholding in our model (~$3,495 on $50,000 RSU vest (100 shares × $500 FMV) with $150,000 other annual income (flat supplemental method)).
On the vignette ($50,000 vest, $150,000 other income): about $17,359 total withheld ($11,000 federal + $2,864 FICA + $3,495 state), leaving ~$32,641 after-tax share value (~65.28 net shares after sell-to-cover).
Supplemental flat rates are a payroll shortcut when RSU income is withheld separately. Employers may instead use the aggregate method (combine with regular wages). Confirm with payroll and your state withholding tables.
Usually no under the flat supplemental method — both are supplemental wages. Timing and whether pay is combined with regular wages can change the stub via the aggregate method.
State income tax withheld may be itemized on Schedule A subject to the federal SALT cap. Whether you benefit depends on your full return.
About $11,000 (22% flat), the same as in every other state on this vignette — plus about $2,864 FICA.
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