TAX SERVICES · STATE & FEDERAL
Tax Preparation and Filing for Individuals and Businesses
Accurate federal and state tax preparation to help you stay compliant and claim every credit and deduction you're entitled to.
What's Included
- Personal tax returns (Form 1040)
- Business tax returns (Schedule C, partnerships, S-corps)
- Federal and state e-filing
- Estimated tax payment guidance for the self-employed
Who It's For
Individuals, self-employed contractors, and small businesses filing personal or business returns.
How It Works
Send or bring your documents (W-2s, 1099s, prior-year return), review the return together, and e-file once you approve it.
Illinois Considerations
Illinois has its own state income tax return (Form IL-1040), filed alongside your federal return, with its own rules for withholding, residency, and estimated payments. We prepare federal and Illinois returns together so the two stay consistent.
Documents You May Need
- W-2s and 1099s
- Last year's tax return, for new clients
- Records of self-employment or business income and expenses
- Mortgage interest, property tax, and other deduction records
- Form 1095 (health insurance), if applicable
- Any IRS or Illinois Department of Revenue notices you've received
Why Choose AG Accountant LLC
You work directly with the person preparing your return, not a call center or a rotating queue of seasonal preparers, so questions get answered by someone who actually knows your file.
Frequently Asked Questions
What's the deadline to file my taxes?
Federal and Illinois individual returns are generally due April 15, unless the IRS or Illinois Department of Revenue announces a different date for that filing year. We'll confirm the current deadline with you.
What if I can't file by the deadline?
We can help you file for an extension, which extends the time to file — but not the time to pay what you owe.
Do you handle both personal and business returns?
Yes — personal returns (Form 1040), self-employment income (Schedule C), and small business returns.
I'm self-employed. Do I need to make estimated tax payments?
Often, yes. We'll review your income and help you estimate quarterly payments so you're not surprised at filing time.
Service Area
Tax preparation for clients in Plainfield, IL, throughout Illinois, and nationwide by phone, email, and secure document upload.
Related Services
Often paired with tax services
Ready to get started with tax services?
Send a note about your situation and we'll follow up with next steps and what to bring.