Summary
If you make $11,964 a year living in the region of Idaho, USA, you will be taxed $915. That means that your net pay will be $11,049 per year, or $921 per month. Your average tax rate is 7.7% and your marginal tax rate is 8.0%. 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 $8.03, hence, your net pay will only increase by $91.97.
Bonus Example
A $1,000 bonus will generate an extra $920 of net incomes. A $5,000 bonus will generate an extra $4,599 of net incomes.