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Delaware flag2026Rank #8

Delaware RSU Tax 2026

~6.6% est. — $3,300 state withholding, $32,836 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

~6.6% est.
Rate
$3,300
State tax
$17,164
Total withheld
#8
National rank

Delaware RSU withholding at a glance

Supplemental rate

~6.6% est.

State tax (vignette)

$3,300

Total withheld

$17,164

Net RSU

$32,836

No published flat supplemental rate (aggregate / table method). Educational estimate ≈6.6% — confirm with payroll tables. Rank #8 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 — Delaware RSU tax

  • Delaware ranks #8 at ~6.6% est. (~$3,300 state tax on $50,000 RSU vest (100 shares × $500 FMV) with $150,000 other annual income (flat supplemental method)).
  • Total vignette withholding ~$17,164 (federal $11,000 + FICA $2,864 + state $3,300); net ~$32,836.
  • No published flat supplemental rate (aggregate / table method). Educational estimate ≈6.6% — confirm with payroll tables.
  • Federal flat supplemental remains 22% regardless of state (IRS Pub. 15).
  • Model custom amounts at /rsu-tax-calculator.
Compare with another state →

Delaware vs similar supplemental rates

States with supplemental rates closest to Delaware (~6.6% est.). Delaware: $3,300 state tax on the vignette.

StateRateState taxvs DECompare
Delaware~6.6% est.$3,300—This page
Vermont6.6%$3,300$0vs DE
Maryland6.5%$3,250-$50vs DE
Minnesota6.25%$3,125-$175vs DE
Connecticut6.99%$3,495+$195vs DE

Modeled Delaware 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.

LineAmountNote
Federal income tax (supplemental)$11,00022% flat (Pub. 15) on this vignette
FICA (SS + Medicare)$2,8646.2% SS + 1.45% Medicare (Additional Medicare if over $200k YTD)
DE state tax$3,300~6.6% est.
Net RSU$32,836After $17,164 total withheld

Delaware withholding at different RSU sizes

Same $150,000 other annual income; flat supplemental method. State rate ~6.6% est..

RSU $15,000

$9,562.50

State $990 · Total withheld $5,437.50

RSU $50,000

$32,836

State $3,300 · Total withheld $17,164

RSU $100,000

$67,361

State $6,600 · Total withheld $32,639

RSU $250,000

$170,936

State $16,500 · Total withheld $79,064

How to read this page

Delaware RSU / supplemental withholding in 2026

No published flat supplemental rate (aggregate / table method). Educational estimate ≈6.6% — confirm with payroll tables.

On $50,000 with $150,000 other annual income, modeled state withholding is $3,300 and after-tax share value is about $32,836.

Compared with New York ($5,850 state) and Texas ($0 state) on the same vignette, Delaware sits at rank #8.

Delaware: aggregate method (no published flat RSU rate)

Delaware does not publish a single flat supplemental percentage for ordinary RSU vests. Employers withhold using graduated tables / aggregate rules.

The 6.6% 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 Delaware payroll usually handles RSU vests

When the RSU vest is paid separately, many employers apply ~6.6% 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 Delaware RSU page helps

Useful if…

  • •Delaware employees reading an RSU vest stub
  • •Candidates comparing Delaware offers to other states
  • •Payroll teams verifying DE 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

Delaware RSU withholding checklist

Quick steps before relying on this vignette for payroll decisions.

  1. 1Confirm Delaware’s current supplemental rule with the state tax agency.
  2. 2Ask payroll which withholding method they use for RSU vests.
  3. 3Check federal, FICA, and state lines separately on the stub.
  4. 4Run scenarios at /rsu-tax-calculator.
  5. 5Plan estimated payments if your marginal bracket exceeds 22%.

Delaware RSU withholding ladder

RSUState taxTotal withheldNet
$15,000$990$5,437.50$9,562.50
$50,000$3,300$17,164$32,836
$100,000$6,600$32,639$67,361
$250,000$16,500$79,064$170,936

Compare Delaware with another state

Compare any two states

Supplemental RSU withholding on a $50,000 vest (100×$500) with $150,000 other income.

vs Vermontvs Californiavs Floridavs New York

Related states

Vermont

~6.6% (30% of fed.)

$3,300

Compare vs VT →
Maryland

6.5%

$3,250

Compare vs MD →
Minnesota

6.25%

$3,125

Compare vs MN →
Connecticut

~6.99% est.

$3,495

Compare vs CT →

Delaware RSU tax FAQs

Delaware uses about 6.6% for flat supplemental withholding in our model (~$3,300 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 $17,164 total withheld ($11,000 federal + $2,864 FICA + $3,300 state), leaving ~$32,836 after-tax share value (~65.67 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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