Salary rate
Annual
Month
Semimonthly
Weekly
Day
Hour
Withholding
Salary
1,510 KWD
Pension
- 121 KWD
Social Security
** - 37.50 KWD
Unemployment
- 7.55 KWD
Total tax
- 166 KWD
Net pay
* 1,344 KWD
Marginal tax rate
8.5%
Average tax rate
11.0%
89.0%
Net pay
11.0%
Total tax
Total tax
Net pay
The Taxberg
1,344 KWD
Net pay
181 KWD
Tax the employer pays
166 KWD
Tax you pay
Total tax paid
347 KWD
Did you know your employer also pays tax on your salary? It costs the employer 181 KWD to pay you 1,510 KWD. In other words, every time you spend 10 KWD of your hard-earned money, 2.30 KWD goes to the government.
Real tax rate
20.5%
So, with you and the employer both paying tax, what used to be a 11% tax rate now rises to 20.5%, meaning your real tax rate is actually 9.5% higher than what it seemed at first.
Summary
If you make 18,120 KWD a year living in Kuwait, you will be taxed 1,990 KWD. That means that your net pay will be 16,130 KWD per year, or 1,344 KWD per month. Your average tax rate is 11.0% and your marginal tax rate is 8.5%. This marginal tax rate means that your immediate additional income will be taxed at this rate. For instance, an increase of 100 KWD in your salary will be taxed 8.50 KWD, hence, your net pay will only increase by 91.50 KWD.
Bonus Example
A 1,000 KWD bonus will generate an extra 915 KWD of net incomes. A 5,000 KWD bonus will generate an extra 4,575 KWD of net incomes.
North America
Country 
Net pay
Average tax
Rank
USA
KWD 14007
22.7%
1
Canada
KWD 12848
29.1%
2
NOTE* Deductions are calculated based on the tables of Kuwait, income tax. For simplification purposes some variables (such as marital status and others) have been assumed. This document does not represent legal authority and shall be used for approximation purposes only.

NOTE** Since January 1st, 2015, employee contributions to Kuwait's social security have increased by 2.5%, for a total of 10.5%. After a certain salary cap, the contribution goes back to 8%.