2019 Tax Day, Deadlines for 2018 individual Returns
A list of the calendar year 2019 e-filing Tax Day deadlines for individuals are listed below. The dates are for Tax Year 2018 (January 1-December 31, 2018) Income Tax Returns.
2019 Tax Deadlines for Filing 2018 Business Returns
2018 business taxes due in 2019; find the business tax deadline by using your business' entity type
Where is my refund (IRS)?
The IRS issues most refunds in less than 21 days, although some require additional time. Check your status here:
Illinois Department of Revenue online system
MyTax Illinois is a web portal offered by the State of Illinois, free of charge, where you can file tax returns, renew licenses, register for accounts, make payments, review correspondence, check where is your refund, and generally manage your accounts.
Form W-9 for contractors - Request for Taxpayer Identification Number and Certification
Form W-4 for employees - Employee’s Withholding Allowance Certificate