Massachusetts
$30,392
$100k total · rank #43
- Headline rate
- 5%
- State tax ($100k)
- $4,647
- Quarterly
- $7,598
Flat state income tax
2026Massachusetts vs New Hampshire Self-Employment Tax
New Hampshire has the lower modeled total tax by $4,647 at $100,000 net profit. Compare total burden, state income tax, and quarterly estimated payments across net-profit scenarios.
By Sammy S. · Founder · AuthorUpdated for 2026
Lower total tax burden
New Hampshire is lower
$25,745 vs $30,392, a $4,647 difference. Federal SE tax is the same; the gap is mostly state income tax.
Side-by-side self-employment tax scoreboard
New Hampshire
$25,745
$100k total · rank #1
- Headline rate
- 0%
- State tax ($100k)
- $0
- Quarterly
- $6,436
No state income tax
Scenario comparison
Single-filer total tax, state tax, and quarterly estimates. Federal SE tax is identical for the same net profit in both states.
| Scenario | Massachusetts total | New Hampshire total | State Δ | Total Δ | Massachusetts qtr | New Hampshire qtr |
|---|---|---|---|---|---|---|
| $50,000 net profit | $12,784 | $10,461 | $2,323 | $2,323 | $3,196 | $2,615 |
| $100,000 net profit | $30,392 | $25,745 | $4,647 | $4,647 | $7,598 | $6,436 |
| $150,000 net profit | $50,355 | $43,385 | $6,970 | $6,970 | $12,589 | $10,846 |
| $200,000 net profit | $70,874 | $61,580 | $9,294 | $9,294 | $17,719 | $15,395 |
$50,000 net profit
Massachusetts total$12,784
New Hampshire total$10,461
Massachusetts state$2,323
New Hampshire state$0
Massachusetts quarterly$3,196
New Hampshire quarterly$2,615
Total difference: $2,323 · State difference: $2,323
$100,000 net profit
Massachusetts total$30,392
New Hampshire total$25,745
Massachusetts state$4,647
New Hampshire state$0
Massachusetts quarterly$7,598
New Hampshire quarterly$6,436
Total difference: $4,647 · State difference: $4,647
$150,000 net profit
Massachusetts total$50,355
New Hampshire total$43,385
Massachusetts state$6,970
New Hampshire state$0
Massachusetts quarterly$12,589
New Hampshire quarterly$10,846
Total difference: $6,970 · State difference: $6,970
$200,000 net profit
Massachusetts total$70,874
New Hampshire total$61,580
Massachusetts state$9,294
New Hampshire state$0
Massachusetts quarterly$17,719
New Hampshire quarterly$15,395
Total difference: $9,294 · State difference: $9,294
Worked example: $100,000 net profit
Single filer, $0 expenses, no W-2 wages. Federal Schedule SE tax is the same; state income tax drives most of the gap.
How the comparison is built
- 1.Start with the same $100,000 Schedule C net profit in both states.
- 2.Apply federal Schedule SE and deduct half of base SE tax for AGI.
- 3.Estimate federal income tax, then each state's ordinary income-tax rules.
- 4.Divide total modeled tax by four for equal quarterly installments.
Modeled result
- Massachusetts total
- $30,392
- New Hampshire total
- $25,745
- Massachusetts state
- $4,647
- New Hampshire state
- $0
- Total difference
- $4,647
Expenses, QBI, local taxes, and filing status can change both the absolute bill and the gap between states.
SE tax is nationwide
Schedule SE Social Security and Medicare use the same federal formula in both states.
State tax drives the gap
Massachusetts is flat state income tax; New Hampshire is no state income tax.
Quarterlies are planning figures
Equal installments ignore safe harbor, withholding, and uneven income timing.
Massachusetts vs New Hampshire self-employment tax FAQs
New Hampshire has the lower modeled total tax at $100,000 net profit ($25,745 vs $30,392). Federal self-employment tax itself is the same nationwide; the gap is mostly state income tax.
Massachusetts: Flat state income tax (headline 5%). New Hampshire: No state income tax (headline 0%).
In the single-filer model, total tax is about $30,392 in Massachusetts and $25,745 in New Hampshire (difference $4,647). State income tax alone differs by about $4,647.
No. Schedule SE Social Security and Medicare tax is federal. State of residence changes state income tax (and sometimes local tax), not the SE tax rate formula.
Equal quarterly installments of the modeled annual bill are about $7,598 in Massachusetts and $6,436 in New Hampshire for the $100,000 scenario. Use the quarterly estimated tax calculator for safe-harbor and withholding adjustments.
New Hampshire shows the lower combined SE + income tax burden in this model, but cost of living and local taxes can still flip the practical result.
Compare another pair
Compare any two states
Total SE + income tax, state layer, and quarterly estimates at $100k net profit.
Related tools
1099 tax calculatorSE tax and Schedule C estimatesQuarterly estimated tax calculator1040-ES style payment planning1099 vs W-2Contractor vs employee take-homeUS paycheck calculatorW-2 federal and state take-homeFICA calculatorSocial Security and Medicare on wagesState tax compareSide-by-side state income tax