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Ffurflen

Rhoi gwybod i CThEF am dâl ymadael ar asedion mewn ymddiriedolaeth (IHT100c)

Defnyddiwch y ffurflen hon i roi gwybod i ni fod Treth Etifeddiant yn ddyledus ar ymadawiad ag ymddiriedolaeth.

Dogfennau

Gwneud cais am fformat hygyrch.
Os ydych chi'n defnyddio technoleg gynorthwyol (er enghraifft, rhaglen darllen sgrin) a bod angen fersiwn o'r ddogfen hon arnoch mewn fformat mwy hygyrch, e-bostiwch different.format@hmrc.gov.uk. Rhowch wybod i ni pa fformat sydd ei angen arnoch. Bydd yn ein helpu ni os byddwch chi'n dweud pa dechnoleg gynorthwyol rydych chi'n ei defnyddio.

Manylion

Defnyddiwch yr IHT100c i roi gwybod i CThEF fod Treth Etifeddiant yn ddyledus ar ymddiriedolaeth.

Dewch o hyd i fersiynau hŷn o’r ffurflen hon drwy ymweld â .

Sut i gwblhau’r ffurflen

Mae angen i chi wneud y canlynol:

  1. Lawrlwytho’r ffurflen a’i chadw ar eich cyfrifiadur.

  2. Agor y ffurflen gan ddefnyddio Adobe Reader. Gallwch ddod o hyd i fersiwn diweddaraf am ddim o Adobe Reader gan ddefnyddio .Ìý

  3. Llenwi’r ffurflen ar y sgrin. Efallai na fydd y ffurflen yn gweithio os byddwch yn ceisio’i hagor yn eich porwr rhyngrwyd. Os nad yw’r ffurflen yn agor, cysylltwch â Gwasanaeth Cwsmeriaid Cymraeg CThEF.

Updates to this page

Cyhoeddwyd ar 4 Ebrill 2014
Diweddarwyd ddiwethaf ar 5 Mehefin 2026 Show all updates
  1. Added Welsh translation.

  2. A new version of the IHT100c form has been added.

  3. We have updated the form IHT1000c and updated guidance in 'How to fill in form IHT100c' in the section 'Exemptions and reliefs' about changes relating to reliefs from 6 April 2026.

  4. Information about taxation conventions and reliefs available has been added to 'Section F: liabilities, exemptions and reliefs' of the attachment 'How to fill in form IHT100c'.

  5. Informational steps to support the completion of boxes H18, H19, J18 and J19 on the IHT100c form have been added to the 'How to fill in form IHT100c' attachment.

  6. Information about 'excluded property' held in trust that becomes relevant property from 6 April 2025 has been added. Guidance on completing schedule D31a of the 'Relevant property trusts proportionate (exit) charge (IHT100c)' form if the transferor was not a long-term UK resident has been added.

  7. A new version of the IHT100c form has been added.

  8. A new version of the IHT100c form and information about how to complete it has been added.

  9. First published.

Argraffu'r dudalen hon