Important Tax Links

Tax Resources

Important Tax Links and Tools

Listed are several different important tax links to various tools that will assist you with business and individual tax planning.  Some of the tools that are available are Individual Income Tax Rates, Standard Deductions, Personal Exemptions, and Where’s my Refund?.

Tax Links

Tax Due Dates
Tax Calendar: Federal Due Dates. Use the tax calendars for specific IRS due dates.

IRS – Where’s my Refund?
Tool to check on the status of your refund. It provides the most up-to-date information the IRS has.

IL Dept. of Revenue – Where’s my Refund?
Where is my refund? Visit for Illinois Income Tax Refund Status.

Illinois Secretary of State
News and information about the programs and services of the Illinois Secretary of State.

Social Security Benefits
Social Security can provide you, your spouse and other eligible members of your family with benefits when you retire.

IDES: Illinois Department of Employment Security
IDES provides unemployment insurance (UI), employment services and guidance to workers, job seekers, and employers.

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Costabile & Steffens P.C. is a Certified Public Accountant firm that started providing
audit/bookkeeping services and tax planning in 1978.

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Access Tax Resources and Information

Access important tax resources and solutions to assist you with your individual and business accounting needs.

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Our accounting firm has been delivering excellence in customer service to our clients for over 40 years. Our focus is to provide consistent quality service to every client, with a personal touch.  We are the trusted advisor that helps each client achieve goals for small to mid sized businesses and personal needs.