The U.S. Office of Government Ethics created the schedule of important ethics dates to remind executive branch agency ethics officials of important dates and deadlines throughout the year.
Link to PDF of 2015 Important Ethics Dates
The late filing fee now applies to annual Public Financial Disclosure report filers who were granted second 45-day filing extensions but have not submitted their reports to agency ethics officials. Remember, checks should be made payable to the U.S. Treasury. (5 CFR § 2634.704)