Cosbau credydau treth – WTC7
Defnyddiwch y daflen wybodaeth hon i gael gwybod am y cosbau y gellir eu codi arnoch os nad yw eich hawliad am gredydau treth yn gywir.
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Mae’r daflen wybodaeth hon ar gyfer unrhyw un y gellir codi cosb arno ar ôl i ni wirio ei hawliad am gredydau treth. Mae’n rhoi gwybod i chi’r canlynol:
- yr hyn sy’n debygol o ddigwydd nesaf
- yr hyn y gallwch ei wneud os codwn gosb arnoch
- sut i ofyn am ailystyriaeth os ydych yn anghytuno â’r gosb
Updates to this page
Cyhoeddwyd ar 2 Ebrill 2014Diweddarwyd ddiwethaf ar 6 Ebrill 2021 + show all updates
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The tax credits penalties factsheet for tax year 2021 to 2022 has been added.
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The tax credits penalties factsheet for tax year 2020 to 2021 has been added.
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The 'Tax credits penalties: what happens at the end of a check' factsheet for tax year 2018 to 2019 has been added.
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The 2018 to 2019 version of this form has been published.
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The 2017 to 2018 version of this form has been published.
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Annual updates available for 2016 to 2017 tax year. New version available in Welsh.
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The 2015 to 2016 form has been added to this page.
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First published.