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New Jersey vs Pennsylvania Self-Employment Tax

Pennsylvania has the lower modeled total tax by $877 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

Pennsylvania is lower

$28,598 vs $29,475, a $877 difference. Federal SE tax is the same; the gap is mostly state income tax.

Side-by-side self-employment tax scoreboard

New Jersey

$29,475

$100k total · rank #28

Headline rate
10.75%
State tax ($100k)
$3,730
Quarterly
$7,369
Progressive state income tax
New Jersey profile →

Pennsylvania

$28,598

$100k total · rank #16

Headline rate
3.07%
State tax ($100k)
$2,853
Quarterly
$7,150
Flat state income tax
Pennsylvania profile →

Scenario comparison

Single-filer total tax, state tax, and quarterly estimates. Federal SE tax is identical for the same net profit in both states.

$50,000 net profit

New Jersey total$11,480
Pennsylvania total$11,887
New Jersey state$1,020
Pennsylvania state$1,427
New Jersey quarterly$2,870
Pennsylvania quarterly$2,972

Total difference: $407 · State difference: $407

$100,000 net profit

New Jersey total$29,475
Pennsylvania total$28,598
New Jersey state$3,730
Pennsylvania state$2,853
New Jersey quarterly$7,369
Pennsylvania quarterly$7,150

Total difference: $877 · State difference: $877

$150,000 net profit

New Jersey total$50,075
Pennsylvania total$47,665
New Jersey state$6,690
Pennsylvania state$4,280
New Jersey quarterly$12,519
Pennsylvania quarterly$11,916

Total difference: $2,410 · State difference: $2,410

$200,000 net profit

New Jersey total$71,231
Pennsylvania total$67,287
New Jersey state$9,651
Pennsylvania state$5,707
New Jersey quarterly$17,808
Pennsylvania quarterly$16,822

Total difference: $3,944 · State difference: $3,944

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. 1.Start with the same $100,000 Schedule C net profit in both states.
  2. 2.Apply federal Schedule SE and deduct half of base SE tax for AGI.
  3. 3.Estimate federal income tax, then each state's ordinary income-tax rules.
  4. 4.Divide total modeled tax by four for equal quarterly installments.

Modeled result

New Jersey total
$29,475
Pennsylvania total
$28,598
New Jersey state
$3,730
Pennsylvania state
$2,853
Total difference
$877

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

New Jersey is progressive state income tax; Pennsylvania is flat state income tax.

Quarterlies are planning figures

Equal installments ignore safe harbor, withholding, and uneven income timing.

New Jersey vs Pennsylvania self-employment tax FAQs

Pennsylvania has the lower modeled total tax at $100,000 net profit ($28,598 vs $29,475). Federal self-employment tax itself is the same nationwide; the gap is mostly state income tax.

New Jersey: Progressive state income tax (headline 10.75%). Pennsylvania: Flat state income tax (headline 3.07%).

In the single-filer model, total tax is about $29,475 in New Jersey and $28,598 in Pennsylvania (difference $877). State income tax alone differs by about $877.

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 $7,369 in New Jersey and $7,150 in Pennsylvania for the $100,000 scenario. Use the quarterly estimated tax calculator for safe-harbor and withholding adjustments.

Pennsylvania shows the lower combined SE + income tax burden in this model, but cost of living and local taxes can still flip the practical result.