Hunanasesiad: gwybodaeth ychwanegol (SA101)
Defnyddiwch dudalennau atodol SA101 i gofnodi mathau llai cyffredin o incwm, didyniadau a rhyddhadau treth ar eich Ffurflen Dreth SA100.
Dogfennau
Manylion
Defnyddiwch dudalennau atodol SA101 wrth gyflwyno’ch Ffurflen Dreth SA100 i gofnodi mathau llai cyffredin o incwm, didyniadau a rhyddhadau treth, a darparu gwybodaeth am golledion Treth Incwm, taliadau pensiwn a chynlluniau arbed treth.
Ffurflenni ac arweiniad cysylltiedig
HS204: Terfyn ar ryddhadau Treth Incwm (yn agor tudalen Saesneg)
HS205: Didyniad Enillion Morwr (yn agor tudalen Saesneg)
HS211: Materion ynghylch cyflogaeth, preswylio a domisil (yn agor tudalen Saesneg)
HS227: Rhyddhad ar gyfer colledion masnachu (yn agor tudalen Saesneg)
HS237: Rhyddhad Treth ar gyfer Buddsoddiad Cymunedol (yn agor tudalen Saesneg)
HS305: Cyfranddaliadau a gwarantau cyflogai - arweiniad pellach (yn agor tudalen Saesneg)
HS320: Enillion ar Bolisïau Yswiriant Bywyd y DU
HS325: Incwm Trethadwy Arall (yn agor tudalen Saesneg)
HS341: Cynlluniau Buddsoddi mewn Mentrau – Rhyddhad Treth Incwm (yn agor tudalen Saesneg)
HS342: Cyfrannu at elusen (yn agor tudalen Saesneg)
Updates to this page
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The additional information form and notes have been added for tax year 2025 to 2026. The form and notes for tax year 2021 to 2022 have been removed.
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The additional information form and notes have been added for tax year 2024 to 2025. The form and notes for tax year 2020 to 2021 have been removed.
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The additional information notes for tax year 2023 to 2024 have been updated.
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The additional information form and notes have been added for tax year 2023 to 2024.
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The form additional information notes have been added for tax year 2022 to 2023.
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The additional information form and notes have been added for tax year 2021 to 2022. The form and notes for 2018 have been removed.
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Form and notes added for tax year 2020 to 21.
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New versions of the pages and notes have been added for the 2019 to 2020 tax year.
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The English and Welsh additional information notes for 2018 to 2019 have been updated.
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The Additional information form and notes have been added for tax year 2018 to 2019.
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The form and notes have been added for tax year 2017 to 2018.
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The form and notes have been added for tax year 2016 to 2017.
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Rates, allowances and duties have been updated for the tax year 2016 to 2017.
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Updates made to SA101 Notes (2015).
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The 2015 to 2016 form has been added to this page.
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Added translation