Gwirio pryd y gallwch ddisgwyl ateb gan CThEF
Cael gwybod pryd y gallwch ddisgwyl ymateb gan CThEF ynghylch 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
- Cynllun y Diwydiant Adeiladu
- Treth Gorfforaeth
- TWE y Cyflogwr
- Treth Incwm
- Yswiriant Gwladol
- Hunanasesiad
- credydau treth
- TAW
Os ydych yn asiant, gallwch hefyd wirio pa mor hir y bydd yn cymryd i CThEF wneud y canlynol:
- eich cofrestru fel asiant i ddefnyddio gwasanaethau ar-lein CThEF
- 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 Gwasanaeth Cwsmeriaid Cymraeg CThEF.
Updates to this page
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