Summary
If you make $9,960 a year living in the region of Oregon, USA, you will be taxed $1,448. That means that your net pay will be $8,512 per year, or $709 per month. Your average tax rate is 14.5% and your marginal tax rate is 14.5%. 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 $14.49, hence, your net pay will only increase by $85.51.
Bonus Example
A $1,000 bonus will generate an extra $855 of net incomes. A $5,000 bonus will generate an extra $4,276 of net incomes.