Summary
If you make $1,370 a year living in the region of Louisiana, USA, you will be taxed $130. That means that your net pay will be $1,240 per year, or $103 per month. Your average tax rate is 9.5% and your marginal tax rate is 9.5%. 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 $9.50, hence, your net pay will only increase by $90.50.
Bonus Example
A $1,000 bonus will generate an extra $905 of net incomes. A $5,000 bonus will generate an extra $4,525 of net incomes.