Tax Filing

Tax filing is the formal process of preparing, completing, and submitting tax returns and information returns to federal, state, and local tax authorities in accordance with statutory deadlines and regulations. For business entities, tax filing obligations cascade across multiple levels: federal income tax returns (Form 1120 for C-Corps, Form 1120-S for S-Corps, Form 1065 for partnerships, Schedule C for sole proprietors), quarterly estimated tax payments, employment tax returns (Forms 941 and 940), information returns (Forms 1099-NEC, 1099-MISC, W-2), and state-specific returns including income tax, franchise tax, sales and use tax, and gross receipts tax. Filing deadlines follow a complex calendar: C-Corp returns are due April 15 (with extensions to October 15), S-Corp and partnership returns are due March 15 (with extensions to September 15), and quarterly estimated taxes are due April 15, June 15, September 15, and January 15. The penalties for late filing are punitive and compounding: the IRS failure-to-file penalty is 5% of unpaid tax per month (capped at 25%), the failure-to-pay penalty is 0.5% per month, and information return penalties range from $60 to $330 per form depending on how late the correction is made — with no maximum cap for intentional disregard. Electronic filing is now mandatory for most business returns, and the IRS has progressively lowered the threshold for mandatory e-filing of information returns to 10 forms per year as of 2024. Multi-state businesses face exponential complexity, with each state having unique forms, apportionment rules, filing frequencies, and electronic filing requirements. doola provides comprehensive tax filing services including return preparation, e-filing, estimated tax calculation, and multi-state coordination to ensure timely compliance.