Regulatory Deadline Tracker Calculator
Track regulatory filing deadlines, calculate days remaining, penalties for late filing, and manage compliance timelines across multiple regulatory frameworks.
The end date of the reporting period
Leave blank to use today's date
Enter 0 if no extension was granted
Percentage of tax/fee owed charged per month late
Base amount for penalty calculation
Many regulations cap total penalties (e.g., IRS caps at 25%)
Formulas Used
Original Deadline:
Original Deadline = Period End Date + Statutory Filing Days
Effective Deadline:
Effective Deadline = Original Deadline + Extension Days Granted
Days Remaining:
Days Remaining = Effective Deadline − Filing/Reference Date
Months Late (for penalty):
Months Late = ⌈Days Late ÷ 30.4375⌉ (ceiling function; partial months count as full)
Raw Penalty:
Raw Penalty = (Penalty Rate % per month) × Months Late × Amount Owed
Capped Penalty:
Penalty = min(Raw Penalty, Max Penalty Cap % × Amount Owed)
Total Liability:
Total Liability = Amount Owed + Capped Penalty
Assumptions & References
- SEC 10-K: 60 days for large accelerated filers, 75 for accelerated, 90 for non-accelerated after fiscal year end (17 CFR § 240.13a-1).
- SEC 10-Q: 40 days for large accelerated/accelerated filers, 45 for non-accelerated (17 CFR § 240.13a-13).
- IRS Form 1120: Due 3.5 months (105 days) after fiscal year end; automatic 6-month extension via Form 7004 (IRC § 6081).
- IRS Form 1065: Due 2.5 months (75 days) after fiscal year end; automatic 6-month extension via Form 7004 (IRC § 6081).
- IRS Late Filing Penalty: 5% per month, capped at 25% of unpaid tax (IRC § 6651(a)(1)).
- IRS Form 941: Due the last day of the month following the end of each quarter (IRS Publication 15).
- OSHA 300A: Must be posted February 1 – April 30 each year (29 CFR § 1904.32).
- EPA Tier II: Annual submission due March 1 under EPCRA Section 312 (40 CFR Part 370).
- Penalty calculations are estimates only. Actual penalties may include interest, additional fees, or criminal liability for willful non-compliance.
- Average month length of 30.4375 days (365.25 ÷ 12) is used for month calculations.
- This tool does not constitute legal or tax advice. Consult a qualified professional for your specific situation.