| Treasurer’s monthly report and remittance |
20th of each month |
| Treasurer’s annual report |
January |
| LM-2 or LM-3 Annual Report – LMRDA |
Within 90 days after December 31 |
| Form 990 – Return of Organization Exempt from Income Tax |
On or before May 15 |
| Form 941 – Employer’s quarterly federal tax return |
On or before the last of the month following the calendar year |
| Form OE1a – Payroll report for local unit |
End of each quarter |
| Form CT1 – Employer’s annual Railroad Retirement tax return |
On or before the last day of the second month following close of year |