
Filing your corporate tax return accurately and on time is critical to maintaining your company’s good standing with both the IRS and New York State. At GTA Accounting Group, our licensed CPAs provide comprehensive corporate tax return services for C-Corps, S-Corps, LLCs, and partnerships operating in New York.
We specialise in both federal (IRS Form 1120 / 1120-S) and New York State CT-3 / CT-3-S corporate filings, ensuring that your business remains compliant with all requirements.
All corporations operating in the U.S. must file annual returns with the IRS:
We ensure that all your deductions, credits, and depreciation schedules are compliant and optimized. Our IRS-authorized e-filing process ensures fast, secure submission.
New York State requires separate filings for businesses operating within the state:
We help you navigate franchise tax calculations, nexus determinations, and multi-state operations.
Our proactive review and compliance checks minimize audit risk and penalties.
You must file a corporate tax return if you:
Are incorporated as a C-Corp or S-Corp in any state
Are an LLC electing corporate treatment
Is a partnership or multi-member LLC filing Form 1065
Do business in New York and meet the nexus test
Not sure which forms apply?
Book a free consultation—we’ll assess your filing obligations and compliance needs.
GTA Accounting Group is a New York-based CPA firm providing trusted tax, bookkeeping, and advisory services to businesses across the Tri-State Area.
We specialise in:
Corporate and partnership tax returns (Form 1120, CT-3)
Multi-state and international compliance
IRS audit representation
Year-round tax strategy and advisory services
Licensed CPAs complete all filings by the current IRS and New York State guidelines. We are committed to helping your business stay compliant, efficient, and financially sound.
Each business is unique. We’ll evaluate your specific situation and provide a no-obligation estimate at no cost.
Get in touchWe assess your entity structure, prior filings, and compliance risk
We gather, prepare, and reconcile your data
We file IRS and NYS corporate tax returns on your behalf
Guidance on estimated payments, notices, or audit inquiries
A corporate tax return is an annual filing required by the IRS and your state government to report business income, deductions, and tax liability. In most cases, this involves filing IRS Form 1120 or 1120-S.
Yes. Businesses operating in New York must file both IRS forms and state-specific forms like CT-3 or CT-3-S. If you’re in NYC, additional city-level filings may apply.
Typically, it’s due on the 15th day of the fourth month after your fiscal year-end (e.g., April 15 for calendar year corporations). We can help request extensions if needed.
Missing deadlines can trigger late filing penalties, interest, and IRS notices. GTA Accounting Group helps you avoid or mitigate these issues.
You’ll need financial statements, payroll records, expense breakdowns, prior returns, and ownership documents. We provide a checklist tailored to your entity type.
Yes, but it’s risky. The complexity of federal and New York regulations makes CPA guidance essential—especially if you have employees, multiple shareholders, or multi-state activity.
Absolutely. We assist with back tax filings, IRS notices, and NYS franchise tax corrections.