Cafwyd 16,958 o ffurflenni heb gosbau am fod yn hwyr.  (Gan mai dydd Gwener oedd 15 Mai, roedd yn bosib cyflwyno SAF heb gosb hwyr dros benwythnos 16-17 Mai.)  Daeth 105 o ffurflenni SAF i law yn y cyfnod cosbau hwyr a barodd tan 9 Mehefin. Mae hyn yn llai o ffurflenni hwyr na blynyddoedd cynt.  Roedd 17,063 o ffurflenni SAF wedi’n cyrraedd erbyn diwedd 9 Mehefin.
The total number of SAFs submitted without late penalty was 16,958.  (Given that 15 May was a Friday, SAFs could be submitted without late penalty over the weekend of 16-17 May.) 105 SAFs were received during the late penalty period, which ran to 9 June. This is a lower number of late forms than in previous years. The total number of SAFs received by the end of 9 June was 17,063.