Income Taxes
Attention tax clients! Please download the forms for remote and drop-off services, including the 1040 Engagement Letter, the S-Corp/Partnership Engagement Letter, along with our Drop-Off Questionnaire. Provide your tax documents in-person or by mail, or contact us for secure sign-in credentials to be provide electronically at
Check out JKC's new tax preparation rates for 2025.
Tax Season Hours will begin February 1st as follows:
East Office - 1471 Ring Road, Calumet City, IL, Monday-Friday 9:00am-6:00pm; Saturday 9:00am-1:00pm
West Office - 9980 190th St., Unit A, Mokena, IL, by appointment only
The tax laws are constantly changing; through our professional development program, the staff at John Kasperek Co., Inc. stays up to date on all the latest Internal Revenue Code changes. We can prepare your tax return, whether it is a sole proprietor, partnership, corporate, tax-exempt organization, estate, or trust.
Our team of professionals has extensive personal income tax experience. Like businesses and NFP organizations, the tax code is ever changing, and like businesses and NFP organizations, we constantly stay up to date on personal tax code changes through our professional development program. Our firm knows the right questions to ask. Let us prepare your next personal tax return and see the difference we make.