C-Corp Tax Preparation Chicago, IL | Form 1120 Filing & Tax Planning
Strategic Corporate Tax Filing with Full Federal & Illinois Compliance
C-Corporations operate under a complex tax structure that requires precision, planning, and ongoing compliance. At Heard & Associates LLC, we provide comprehensive C-Corp tax preparation services in Chicago, including federal Form 1120 filing, Illinois corporate income tax compliance, and advanced corporate tax planning.
Whether your corporation is newly formed, multi-state, or preparing for growth, we ensure your filings are accurate and strategically aligned with long-term business objectives.
📞 Call (312) 810-3603 or Book Your Consultation Online today.






Form 1120 – Federal C-Corporation Tax Filing
All C-Corporations must file Form 1120 – U.S. Corporation Income Tax Return annually. Errors in reporting income, deductions, or shareholder activity can trigger IRS scrutiny and penalties.
Our federal corporate tax services include:
- Preparation and filing of Form 1120
- Corporate income and expense review
- Depreciation and asset reporting
- Net operating loss calculations
- Coordination with shareholder reporting
- Electronic filing and compliance review
Every return is reviewed for accuracy, completeness, and risk mitigation.





Illinois Corporate Income & Replacement Tax Compliance
C-Corporations operating in Illinois are subject to:
- Illinois corporate income tax
- Illinois replacement tax
- Required state-level estimated payments
We prepare and file Illinois corporate returns, calculate replacement tax obligations, and ensure compliance with state regulations. This is critical for Chicago-based corporations to avoid state penalties and enforcement actions.


Estimated Quarterly Corporate Tax Payments
C-Corporations are required to make federal and Illinois estimated quarterly tax payments when applicable.
We assist with:
- Federal estimated tax calculations
- Illinois estimated corporate payments
- Underpayment penalty prevention
- Ongoing corporate income projections
Proper estimated payments protect your corporation from interest charges and compliance issues.
Corporate Tax Planning & Double Taxation Strategy
C-Corporations are subject to double taxation — once at the corporate level and again at the shareholder level when dividends are distributed.
We provide strategic planning for:
- Dividend vs salary structuring
- Retained earnings management
- Compensation planning for shareholder-employees
- Corporate income timing strategies
- Expense optimization and deduction planning
Our goal is to reduce unnecessary tax exposure while keeping your corporation compliant and defensible.


Multi-State Corporate Tax Filing
If your corporation operates in more than one state, multi-state filing obligations may apply. We assist Chicago corporations with:
- Multi-state nexus evaluation
- Apportionment calculations
- State return preparation
- Coordinated compliance across jurisdictions
This ensures proper reporting without overpaying or underreporting state obligations.
Late Corporate Returns, Amendments & Compliance Issues
If your corporation has:
- Unfiled Form 1120 returns
- Late Illinois corporate filings
- IRS or state notices
- Prior-year reporting errors
We provide corrective filing and compliance support. Our services integrate with IRS Representation, penalty review, and amended corporate return preparation when necessary.


Accounting & Financial Reporting Integration
Accurate corporate tax preparation requires strong accounting foundations. We support Chicago C-Corporations with:
- Financial statement preparation
- Year-end bookkeeping review
- Reconciliation of income and expense accounts
- Tax-ready accounting oversight
Our clean accounting services ensures clean corporate tax filings.
CFO-Level Corporate Tax Support
Beyond annual filings, we offer strategic advisory for corporations needing deeper financial insight. This includes:
- Corporate tax forecasting
- Cash flow analysis
- Long-term tax planning strategies
- Business growth tax structuring
We align tax compliance with long-term corporate strategy.


Why Choose Heard & Associates for C-Corp Tax Preparation
Chicago corporations choose us because we provide:
- Expert Form 1120 preparation
- Illinois corporate tax & replacement tax expertise
- Strategic dividend and compensation planning
- Multi-state filing coordination
- Year-round corporate tax guidance
- Clear communication and compliance-focused service
Our structured process — Review → Plan → File → Support — ensures your corporation remains compliant and strategically positioned.
Schedule Your C-Corp Tax Consultation in Chicago
If your corporation requires accurate, strategic C-Corp tax preparation in Chicago, our team is ready to assist.


































