Credydau treth: cais ffurfiol am wybodaeth - WTC/FS3
Bydd CThEM yn anfon y daflen wybodaeth hon atoch os nad ydych wedi rhoi’r holl wybodaeth y mae wedi gofyn amdani.
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Arweiniad yn unig yw’r taflenni gwybodaeth sy’n adlewyrchu safbwynt CThEM ar adeg eu hysgrifennu.
Updates to this page
Cyhoeddwyd ar 2 Ebrill 2014Diweddarwyd ddiwethaf ar 6 Ebrill 2021 + show all updates
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Tax credits formal request for information forms have been added for tax year 2021.
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Tax credits formal request for information forms have been added for tax year 2020.
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A new version of the English and Welsh versions of the Tax credits: formal request for information - WTC/FS3 form for 2019 has been added to the page.
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Rates, allowances and duties have been updated for the tax year 2017 to 2018.
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A new version of this form has been added to the page.
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The 2015 to 2016 form has been added to this page.
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First published.