Summary
If you make 55,384,176 LL a year living in Lebanon, you will be taxed 6,143,475 LL. That means that your net pay will be 49,240,701 LL per year, or 4,103,392 LL per month. Your average tax rate is 11.1% and your marginal tax rate is 15.7%. This marginal tax rate means that your immediate additional income will be taxed at this rate. For instance, an increase of 100 LL in your salary will be taxed 15.71 LL, hence, your net pay will only increase by 84.29 LL.
Bonus Example
A 1,000 LL bonus will generate an extra 843 LL of net incomes. A 5,000 LL bonus will generate an extra 4,215 LL of net incomes.