Summary
If you make $142,920 a year living in the region of South Dakota, USA, you will be taxed $35,907. That means that your net pay will be $107,013 per year, or $8,918 per month. Your average tax rate is 25.1% and your marginal tax rate is 29.8%. This marginal tax rate means that your immediate additional income will be taxed at this rate. For instance, an increase of $100 in your salary will be taxed $29.79, hence, your net pay will only increase by $70.21.
Bonus Example
A $1,000 bonus will generate an extra $702 of net incomes. A $5,000 bonus will generate an extra $3,511 of net incomes.