The tax table below will show in detail the New Jersey state income tax rates by income tax bracket(s). There are 6 income tax brackets for New Jersey. If your income range is between $0 and $20,000, your tax rate on every dollar of income earned is 1.4%. If your income range is between $20,001 and $35,000, your tax rate on every dollar of income earned is 1.75%. If your income range is between $35,001 and $40,000, your tax rate on every dollar of income earned is 3.5%. If your income range is between $40,001 and $75,000, your tax rate on every dollar of income earned is 5.525%. If your income range is between $75,001 and $500,000, your tax rate on every dollar of income earned is 6.37%. If your income range is $500,001 and over, your tax rate on every dollar of income earned is 8.97%. It's 10% of the tax, not the rate.