Self Assessment
Income tax for sole traders and individuals Verified obligations, filing rules, tools and official sources stay connected.
Self Assessment at a glance
ReturnDeck uses the same structured record across this page, calculators, Build My ReturnDeck, deadlines and location views so the factual layer stays consistent.
Who needs to consider it
Income sources, business activity and personal circumstances determine whether Self Assessment and supplementary pages are relevant.
Build the return from records
Bring together employment, self-employment, property, savings, dividends, gains, pensions and tax already deducted before completing the return.
Finish the cycle
Check payments on account, balancing payments, amendment windows and the evidence supporting each figure.
Rules and obligations
The explanatory content above remains available even when no structured tax rows are matched. Install or refresh the ReturnDeck data packs to populate the verified obligation cards, then personalise the business facts to determine which rules actually apply.
Filing and compliance
Filing requirements depend on the exact tax, entity and jurisdiction. The learning and preparation guidance on this page remains useful; structured filing rows appear here when the relevant verified data pack is installed and matched.
Continue in ReturnDeck
Official sources
Structured source cards appear here when the relevant verified data rows are installed. ReturnDeck still links every live-rule decision back to its official authority.
See ReturnDeck’s official-source policy →
