As you can see, a bonus in an Illinois divorce creates a lot of opportunity for strategic maneuvering on the part of a Chicago divorce lawyer. SmartAsset's Illinois paycheck calculator shows your hourly and salary income after federal, state and local taxes.The example below illustrates how to figure the amount to withhold using the automated payroll method. Apply to Truck Driver, House Cleaner, Snow Plow Operator and more! If a change has occurred in the status of your business, complete form UI-50A. This Illinois bonus tax calculator uses supplemental tax rates to calculate withholding on special wage payments such as bonuses. Cook County and the City of Chicago have their own minimum wage that's higher than the state's current rate. Bonus will be deposited into the checking account within 15 business days after completing the requirements and the initial 90 day period is complete. Apply to House Cleaner, Driver, Truck Driver and more! They can also vary significantly based on industry.