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South Dakota vs New Hampshire Bonus Tax

South Dakota and New Hampshire withhold $0 state tax on the vignette bonus.

By Sammy S. · Founder · AuthorUpdated for 2026

Key finding

South Dakota and New Hampshire tie on state withholding

Both withhold $0 state tax on $10,000 bonus with $80,000 year-to-date wages (flat supplemental method).

Side-by-side bonus withholding scoreboard

Key takeaways — South Dakota vs New Hampshire bonus tax

  • South Dakota and New Hampshire both withhold about $0 state tax on $10,000 bonus with $80,000 year-to-date wages (flat supplemental method).
  • South Dakota: No state tax (No state wage tax). New Hampshire: No state tax (No state wage tax).
  • Federal withholding is $2,200 in both states on this vignette (22% flat per IRS Pub. 15); FICA is $765 each.
  • South Dakota ranks #47; New Hampshire ranks #46 (#1 = highest state withholding).
  • Model custom bonuses at /bonus-tax-calculator.

Rule contrast — South Dakota vs New Hampshire

TopicSouth DakotaNew Hampshire
Withholding methodNo state wage taxNo state wage tax
Supplemental rateNo state taxNo state tax
Vignette state tax$0$0
Vignette federal + FICA$2,200 + $765$2,200 + $765
Vignette total withheld$2,965$2,965
Vignette net$7,035$7,035
Rank (curated)#47#46

State withholding and net at different bonus sizes

$80,000 YTD wages; engine flat supplemental method. State gap is state tax only; net columns include federal and FICA.

BonusSouth Dakota stateNew Hampshire stateState gapSD netNH net
$5,000$0$0$0$3,517.50$3,517.50
$10,000$0$0$0$7,035$7,035
$25,000$0$0$0$17,587.50$17,587.50
$50,000$0$0$0$35,175$35,175

How to read this page

South Dakota vs New Hampshire bonus tax in 2026

This page compares state supplemental withholding for South Dakota (SD) and New Hampshire (NH) on $10,000 bonus with $80,000 year-to-date wages (flat supplemental method), calculated from our engine (same engine as the bonus calculator).

State withholding ties at about $0. Net bonus still depends on federal and FICA.

No state wage income tax — $0 state supplemental withholding on bonuses.

No wage income tax (interest/dividends tax repealed) — $0 state supplemental withholding on bonuses.

How each state’s rate works

South Dakota withholds $0 state income tax on bonuses.

New Hampshire withholds $0 state income tax on bonuses.

Official state agencies for this pair only are linked in the sources section — not every state in the hub.

Federal and FICA are the same on this vignette

Both states withhold $2,200 federal income tax under the Pub. 15 flat method (22% on $10,000).

FICA is $765 in each (Social Security + Medicare on this YTD/bonus pair). The take-home gap is almost entirely state supplemental withholding.

Above $1M supplemental wages with one employer, federal withholding uses 37% on the excess — still the same rule in both states.

Same bonuses, different state tax

The ladder recomputes engine results at $5k–$50k bonuses with $80,000 YTD wages.

If either state uses Vermont’s 30%-of-federal rule, Wisconsin bands, or an aggregate proxy, the gap may not scale as a simple constant percentage — check each ladder row.

Signing-bonus negotiations should still include regular wage tax and cost of living — not supplemental withholding alone.

What this comparison excludes

Local city taxes (NYC, Philly wage tax, Ohio municipalities) are not included.

Aggregate-method stubs can differ from the flat-percentage estimates shown here.

Final Form 1040 liability depends on annual brackets, deductions, and credits — withholding is a prepayment.

Who this South Dakota vs New Hampshire comparison helps

Useful if…

  • •Candidates weighing South Dakota vs New Hampshire offers with cash bonuses
  • •Payroll comparing multi-state supplemental setup
  • •Editors quantifying high-tax vs no-tax state gaps

Use official tools if…

  • •Local city taxes (NYC, Philly, Ohio municipalities)
  • •Aggregate-method stubs that differ from flat rates
  • •Year-end true-up if federal 22% under-withholds

South Dakota vs New Hampshire checklist

Before treating the withholding gap as a job or relocation decision.

  1. 1Confirm South Dakota and New Hampshire supplemental rules with each revenue department.
  2. 2Ask which withholding method payroll uses (flat vs aggregate).
  3. 3Check the bonus ladder for your award size.
  4. 4Open /bonus-tax-by-state/south-dakota and /bonus-tax-by-state/new-hampshire for full profiles.
  5. 5Run both scenarios in /bonus-tax-calculator.

Vignette net: $7,035 (SD) vs $7,035 (NH).

What the state gap means

Identical supplemental rates on this vignette — compare regular wage tax and cost of living separately.

Limits of this comparison

NYC/local taxes, aggregate-method withholding, and equity vest timing are not modeled. Use the bonus calculator for custom amounts and YTD wages.

South Dakota vs New Hampshire bonus tax FAQs

South Dakota and New Hampshire withhold the same state tax on this vignette ($0).

No on this vignette — both use the flat 22% federal supplemental method plus the same FICA rules. The gap is almost entirely state supplemental withholding.

South Dakota: No state tax. New Hampshire: No state tax.

They tie at about $7,035 net.

No. This comparison is state supplemental withholding plus federal and FICA only.

Not on this vignette. Both use 22% flat federal supplemental withholding ($2,200) plus the same FICA rules.

Compare another pair

Compare any two states

Supplemental bonus withholding on a $10,000 bonus with $80,000 YTD wages.