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Gwiriadau cydymffurfio: Cyhoeddi manylion diffygdalwyr bwriadol – CC/FS13

Mae'r daflen wybodaeth hon yn cynnwys gwybodaeth ynghylch pryd y gall Cyllid a Thollau EM cyhoeddi manylion pobl sy'n cael eu materion treth yn anghywir yn fwriadol.

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Arweiniad yn unig yw’r taflenni gwybodaeth hyn sy’n adlewyrchu safbwynt Cyllid a Thollau ar adeg eu hysgrifennu.

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Cyhoeddwyd ar 8 Hydref 2014
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