United Kingdom · HMRC
Form SA103S — Self Assessment: Self-employment (short)
SA103S is the short self-employment supplementary page for sole traders with simpler affairs and turnover below the threshold.
Fill SA103S now — free to try
Filled entirely on your computer. Your National Insurance number and personal details are never uploaded.
Who needs SA103S?
Sole traders with straightforward accounts — those above the turnover threshold or with complex adjustments use the full SA103F.
How to fill it with DocsArc
- Open SA103S in the DocsArc workspace with one click above.
- Click any field and type — form fields are detected automatically, and you can add text anywhere.
- Sign it if needed: draw, type or upload your signature, with an automatic date line.
- Save or print. The finished PDF never left your computer.
Frequently asked questions
Short or full version?
Use the short page if your turnover is below the threshold in the notes and your affairs are simple; otherwise use SA103F.
Always verify you have the current version: official HMRC page
Contains public sector information licensed under the Open Government Licence v3.0. DocsArc is an independent tool and is not affiliated with HMRC.