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Tax & accounting services in Illinois

BATS helps individuals and businesses across Illinois with tax preparation, tax planning, IRS problems, bookkeeping and payroll, with advisors who know Illinois rules.

Illinois tax overview

What to know about taxes in Illinois

Illinois taxes personal income, and state returns are filed with the Illinois Department of Revenue. Planning has to account for both federal and Illinois rules.

Whether you are filing a personal return, running a growing company or answering a letter from the IRS or the state, we pair you with an advisor who works through Illinois returns every season.

Illinois at a glance

State tax agency
Illinois Department of Revenue
Income tax on wages
Yes
Local income taxes
Not common
Cities with pages
6

Rates and thresholds change every year. Ask your advisor for the figures that apply to you.

Services in Illinois

Every BATS service is available in Illinois

Tax Preparation & Filing

Accurate federal, state and local returns for individuals, businesses, trusts and nonprofits.

Questions

Illinois tax FAQs

10 answers about taxes in Illinois.

Do you prepare Illinois state tax returns?

Yes. We prepare resident, part-year and nonresident Illinois returns and file them with the Illinois Department of Revenue, together with your federal return.

When are Illinois individual returns due?

Many states follow the federal April 15 deadline, but some set their own dates. We track the Illinois Department of Revenue deadlines for you and file extensions when they are needed.

Does Illinois have a sales tax?

Yes. Illinois charges sales tax, and local rates can add to the state rate. We help Illinois businesses register, collect the right rate and file returns with the Illinois Department of Revenue.

What payroll registrations does a Illinois employer need?

Employers generally register with Illinois for unemployment insurance and state income tax withholding, plus any other state payroll programs that apply. We handle the registrations and the ongoing filings.

Do I need to make Illinois estimated tax payments?

If you have income without enough withholding, such as self-employment or investment income, Illinois generally expects estimated payments during the year, with its own thresholds and due dates. We calculate federal and state payments together.

How are LLCs and corporations taxed in Illinois?

Illinois applies its own rules to LLCs, S corporations and C corporations, and in some cases charges franchise, gross receipts or minimum taxes regardless of profit. We review how your entity is treated in Illinois before you form it or make an election.

I moved into or out of Illinois. What do I file?

Usually a part-year return for each state you lived in during the year, with credits so the same income is not taxed twice. Our multi-state filing service handles this.

Can you represent me with the Illinois Department of Revenue?

Yes. In addition to IRS matters, we respond to notices and audits from the Illinois Department of Revenue when you authorize us to.

Can a Illinois business work with BATS remotely?

Yes. We work with Illinois businesses through video meetings, secure document upload and cloud accounting software, so there is no need to visit an office.

Which Illinois cities do you serve?

We have dedicated pages for Chicago, Aurora, Naperville, Joliet, Rockford, Springfield, and we work with clients anywhere in Illinois.

Tax help for Illinois

Book a consultation and get a clear plan for your taxes and books, wherever you are in the U.S.

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