Summary
If you make $17,680 a year living in the region of Montana, USA, you will be taxed $2,464. That means that your net pay will be $15,216 per year, or $1,268 per month. Your average tax rate is 13.9% and your marginal tax rate is 23.7%. 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 $23.65, hence, your net pay will only increase by $76.35.
Bonus Example
A $1,000 bonus will generate an extra $764 of net incomes. A $5,000 bonus will generate an extra $3,818 of net incomes.