Gwirio pryd y gallwch ddisgwyl ateb gan CThEM
Dysgwch pryd y gallwch ddisgwyl cael ateb gan CThEM i ymholiad neu gais rydych wedi鈥檌 wneud.
Mae鈥檙 wybodaeth yn yr offeryn hwn yn cael ei diweddaru鈥檔 wythnosol.
Gallwch ddefnyddio鈥檙 offeryn hwn ar gyfer ymholiadau neu geisiadau rydych wedi鈥檜 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
Os yw eich ymholiad yn ymwneud ag unrhyw beth arall, cysylltwch 芒 CThEM.
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