Note: Effective March 2018, the monthly Oil spill tax return was discontinued.
2018 | 2017 | 2016 | 2015 | 2014 | 2013 | |
---|---|---|---|---|---|---|
December | Return | Return | Return | Return | Return | |
November | Return | Return | Return | Return | Return | |
October | Return | Return | Return | Return | Return | |
September | Return | Return | Return | Return | Return | |
August | Return | Return | Return | Return | Return | |
July | Return | Return | Return | Return | Return | |
June | Return | Return | Return | Return | Return | |
May | Return | Return | Return | Return | Return | |
April | Return | Return | Return | Return | Return | |
March | Return | Return | Return | Return | Return | |
February | Return | Return | Return | Return | Return | Return |
January | Return | Return | Return | Return | Return | Return |