Hello Keith I did use an additional sa102 but the software I use rejected it as they didn't have a uk employers ref as they are based in Singapore, do I use a dummy employers ref or do I need to speak to my software provider. Mike.
I doubt if your software provider is in the slightest bit interested in your difficulties, Mike. They do well enough without having to cater for esoteric employments! You could try though! A recent review revealed that there are 23199 UK registered seafarers employed across 944 vessels flagged of all nations. As most of these people will not pay UK tax you can understand the disinterest of HMRC in the matter too!
I would use a dummy employer's reference. Personally I won't touch on line filing with a barge pole. Admittedly I have to for Corporation Tax and PAYE. A return which used to take 5 minutes at the outside on paper now takes well over half an hour of thrashing about! In my experience HMRC seem incapable of designing a system which works for the employer or agent. Their constant refrain is 'That it works all right for us' a breathtakingly smug attitude to adopt.