Summary
If you make $66,888 a year living in the region of Wisconsin, USA, you will be taxed $15,795. That means that your net pay will be $51,093 per year, or $4,258 per month. Your average tax rate is 23.6% and your marginal tax rate is 35.6%. 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 $35.59, hence, your net pay will only increase by $64.41.
Bonus Example
A $1,000 bonus will generate an extra $644 of net incomes. A $5,000 bonus will generate an extra $3,221 of net incomes.