Canllawiau

Gwirio pryd y gallwch ddisgwyl ateb gan CThEM

Dysgwch pryd y gallwch ddisgwyl cael ateb gan CThEM i ymholiad neu gais rydych wedi’i wneud.

Mae’r wybodaeth yn yr offeryn hwn yn cael ei diweddaru’n wythnosol.

Gallwch ddefnyddio’r offeryn hwn ar gyfer ymholiadau neu geisiadau rydych wedi’u gwneud ynghylch:

  • Budd-dal Plant
  • Treth Gorfforaeth
  • TWE Cyflogwyr
  • Treth Incwm
  • Yswiriant Gwladol
  • Hunanasesiad
  • credydau treth
  • TAW

Os ydych yn asiant, gallwch wirio pa mor hir y bydd yn cymryd i CThEM:

  • eich cofrestru fel asiant i ddefnyddio Gwasanaethau Ar-lein CThEM
  • prosesu cais am awdurdod i weithredu ar ran cleient
  • diwygio eich manylion asiant

Dechrau nawr

Os yw eich ymholiad yn ymwneud ag unrhyw beth arall, cysylltwch â CThEM.

Cyhoeddwyd ar 29 September 2021
Diweddarwyd ddiwethaf ar 10 May 2023 + show all updates
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