Summary
If you make 521,040,000 lei a year living in Romania, you will be taxed 216,231,600 lei. That means that your net pay will be 304,808,400 lei per year, or 25,400,700 lei per month. Your average tax rate is 41.5% and your marginal tax rate is 41.5%. This marginal tax rate means that your immediate additional income will be taxed at this rate. For instance, an increase of 100 lei in your salary will be taxed 41.50 lei, hence, your net pay will only increase by 58.50 lei.
Bonus Example
A 1,000 lei bonus will generate an extra 585 lei of net incomes. A 5,000 lei bonus will generate an extra 2,925 lei of net incomes.