Ffurflen

Hunanasesiad: Hunangyflogaeth (llawn) (SA103F)

Defnyddiwch dudalennau atodol SA103F i gofrestru incwm hunangyflogedig ar eich Datganiad Treth SA100 os oedd eich trosiant blynyddol uwch na thraddodiad TAW ar gyfer y flwyddyn dreth.

Gan:

Cyllid a Thollau EF

Cyhoeddwyd:

23 Ebrill 2014

Diweddarwyd ddiwethaf:

6 Ebrill 2026

Show all updates

6 Ebrill 2026
Self-employment (full) form and notes for the tax year 2025 to 2026 have been added. The forms and notes for tax year 2021 to 2022 have been removed.
6 Ebrill 2025
The form and self-employment (full) notes have been added for tax year 2024 to 2025. Versions from tax year 2020 to 2021 have been removed.
6 Ebrill 2024
The form and self-employment (full) notes have been added for tax year 2023 to 2024.
6 Ebrill 2023
The form and self-employment (full) notes have been added for tax year 2022 to 2023.
6 Ebrill 2022
The self-employment (full) form and notes have been added for tax year 2021 to 2022.
12 Gorffennaf 2021
The Self-employment (full) notes for tax year 2020 to 2021 have been updated.
6 Ebrill 2021
The Self-employment (full) form and notes have been added for tax year 2020 to 2021.
6 Ebrill 2020
The new version of the form and notes have been added for tax year 2019 to 2020.
30 Ionawr 2020
The working sheets on pages SEFN10 and SEFN11 have been amended within the Self Employment (full) 2018 PDF.
6 Ebrill 2019
The form and notes have been added for tax year 2018 to 2019.
6 Ebrill 2018
The form and notes have been added for tax year 2017 to 2018.
6 Ebrill 2017
The form and notes have been added for tax year 2016 to 2017.
6 Ebrill 2016
Rates, allowances and duties have been updated for the tax year 2016 to 2017.
6 Ebrill 2015
The 2015 to 2016 form has been added to this page.
23 Ebrill 2014
Added translation

Dogfennau

Hunangyflogaeth (llawn) (2026)

PDF, 75 KB, 6 o dudalennau

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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.

Hunangyflogaeth (llawn) (2025)

PDF, 509 KB, 6 o dudalennau

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Hunangyflogaeth (llawn) (2024)

PDF, 519 KB, 6 o dudalennau

Efallai na fydd y ffeil hon yn addas ar gyfer defnyddwyr technoleg gynorthwyol.

Gwneud cais am fformat hygyrch

Hunangyflogaeth (llawn) (2023)

PDF, 528 KB, 6 o dudalennau

Efallai na fydd y ffeil hon yn addas ar gyfer defnyddwyr technoleg gynorthwyol.

Gwneud cais am fformat hygyrch

Manylion

Os ydych yn hunangyflogedig, os oes gennych faterion treth mwy cymhleth a bod eich trothwy busnes blynyddol dros y trothwy TAW ar gyfer y flwyddyn dreth, defnyddiwch y fersiwn lawn o’r dudalen hunangyflogaeth atodol pan fyddwch yn cyflwyno eich SA100 Ffurflen Dreth.