C-Corporations are entirely distinct tax entities. Unlike pass-through structures (like LLCs and S-Corps), a C-Corp pays tax at the corporate level. Preparing Form 1120 requires a deep understanding of corporate tax law, strict accounting reconciliations, and strategic planning regarding dividends and retained earnings.
HurainTax provides precise, technically rigorous corporate tax preparation for growing startups, funded businesses, and established C-Corporations.
The primary concern for C-Corporations is navigating the "double taxation" structure—where profits are taxed at the flat corporate rate, and dividends are taxed again on the shareholders' personal returns.
Corporate tax preparation requires meticulous attention to Schedule M-1 or M-3 reconciliations—the differences between your financial accounting book income and your taxable income. We handle the technical mechanics of:
C-Corporations face strict requirements for quarterly estimated tax payments. Failing to accurately project corporate income and remit estimated payments can result in underpayment penalties. We calculate safe harbor requirements and adjust your estimates based on current-year financial performance.
Qualified Small Business Stock (QSBS) allows early investors and founders of certain C-Corporations to exclude up to 100% of their capital gains (up to $10 million) when they sell their shares, provided they held the stock for at least five years. Proper C-Corp formation and record-keeping is vital to claim this.
Schedule M-1 reconciles your company's "book income" (what your profit and loss statement says) with your "tax income" (what the IRS cares about). Differences include things like meals and entertainment limits, non-deductible penalties, and depreciation variances.