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First of all - after moving to the US - you will be a resident alien - and will be taxed the same way as other US persons.You will be taxed on all your worldwide income.
You will file the tax return every year - and will calculate your actual tax liability.Meanwhile - your employer will withhold income taxes form each paycheck.
Withholding is not your actual tax liability - and on your tax return income tax withheld will be credited toward your tax liability - so if you will be able to claim large deductions - and withholding is more than your actual tax liability - you will claim a refund.
Your employer will withhold based on how you file W4 form.
Generally - if your spouse doesn't work - you will file as married and will claim TWO allowances for yourself, TWO for your spouse and ONE for each child - total SIX allowances.In this case with $100k gross annual wages - your bi-weekly paycheck should look as
Bi-weekly Gross $3,846Federal Income Tax Withholding $353Social Security $238Medicare $56New Jersey Income Tax Withholding $164SUI $16.35FLI $3.46SDI $9.62Net Pay $3,006