> Use this skill whenever asked about UK self-employment income for sole traders filing SA103S (short) or SA103F (full) as part of Self Assessment. Trigger on phrases like \"self-employment income\", \"SA103\", \"trading income\", \"sole trader tax\", \"allowable expenses UK\", \"capital allowances UK\", \"trading allowance\", \"basis period\", \"tax year basis\", \"simplified expenses\", \"Class 4 NIC\", \"Class 2 abolished\", \"MTD ITSA\", \"Making Tax Digital\", \"April 2026 sole trader\", \"loss relief self-employed\", or any question about computing self-employment profits for a UK sole trader. Covers trading income computation, allowable expenses, capital allowances (AIA, WDA, FYA), simplified expenses, the trading allowance, the completed basis period reform, the MTD ITSA three-phase rollout from April 2026, loss relief, and Class 4 NIC interaction (including the post-2024 rate cut and Class 2 abolition). ALWAYS read this skill before touching any UK self-employment work.
Install with
Claude CodeCodexCursorGitHub CopilotGemini CLI
Supported by the Atlas install prompt. Skill-specific requirements vary.
Skill stats
Skills1CategoryGeneralStars0
About this skill
> Use this skill whenever asked about UK self-employment income for sole traders filing SA103S (short) or SA103F (full) as part of Self Assessment. Trigger on phrases like \"self-employment income\", \"SA103\", \"trading income\", \"sole trader tax\", \"allowable expenses UK\", \"capital allowances UK\", \"trading allowance\", \"basis period\", \"tax year basis\", \"simplified expenses\", \"Class 4 NIC\", \"Class 2 abolished\", \"MTD ITSA\", \"Making Tax Digital\", \"April 2026 sole trader\", \"loss relief self-employed\", or any question about computing self-employment profits for a UK sole trader. Covers trading income computation, allowable expenses, capital allowances (AIA, WDA, FYA), simplified expenses, the trading allowance, the completed basis period reform, the MTD ITSA three-phase rollout from April 2026, loss relief, and Class 4 NIC interaction (including the post-2024 rate cut and Class 2 abolition). ALWAYS read this skill before touching any UK self-employment work.
Quick start
Copy the install prompt. Use the green button above this README.
Send it to your agent. Paste it into your coding agent’s chat and send.
Review the setup. Your agent checks the skill’s instructions, requirements, and installation scope.
> Use this skill whenever asked about UK self-employment income for sole traders filing SA103S (short) or SA103F (full) as part of Self Assessment. Trigger on phrases like \"self-employment income\", \"SA103\", \"trading income\", \"sole trader tax\", \"allowable expenses UK\", \"capital allowances UK\", \"trading allowance\", \"basis period\", \"tax year basis\", \"simplified expenses\", \"Class 4 NIC\", \"Class 2 abolished\", \"MTD ITSA\", \"Making Tax Digital\", \"April 2026 sole trader\", \"loss relief self-employed\", or any question about computing self-employment profits for a UK sole trader. Covers trading income computation, allowable expenses, capital allowances (AIA, WDA, FYA), simplified expenses, the trading allowance, the completed basis period reform, the MTD ITSA three-phase rollout from April 2026, loss relief, and Class 4 NIC interaction (including the post-2024 rate cut and Class 2 abolition). ALWAYS read this skill before touching any UK self-employment work.
About this listing
Category
General
Reported license
AGPL-3.0
Listing language (estimated)
English
Review status
Not individually reviewed
Agent compatibility
Atlas installation supports Claude Code, Codex, and Cursor. Skill-specific dependencies and features are checked during setup.
Claude Code
Codex
Cursor
GitHub Copilot
Gemini CLI