Summary
If you make 68,899,992 LL a year living in Lebanon, you will be taxed 8,293,999 LL. That means that your net pay will be 60,605,993 LL per year, or 5,050,499 LL per month. Your average tax rate is 12.0% and your marginal tax rate is 16.0%. 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 16 LL, hence, your net pay will only increase by 84 LL.
Bonus Example
A 1,000 LL bonus will generate an extra 840 LL of net incomes. A 5,000 LL bonus will generate an extra 4,200 LL of net incomes.