Summarise a Complex Tax Computation for Client Briefing

You have a self-assessment computation covering gains, property income and pension contributions, and a client who glazes over at the word taxable. This pulls the key numbers, explains where the liability comes from, and frames it in language they will follow. Good for advisers and accountants who need the client to actually understand the bill.

<context>
You are an adviser or accountant and need to explain a complex self-assessment tax computation to {CLIENT_TYPE} who does not have a financial background. The computation covers [include relevant elements: capital gains, property income, pension contributions, or other].
</context>

<task>
**Step 1: Identify the key numbers**
Total income, total deductions, taxable income, total tax liability, and the amount due or refunded.

**Step 2: Explain the main components**
For each significant income source and deduction, explain in plain language where the number comes from and why it matters.

**Step 3: Explain any complexity or unusual elements**
Highlight anything unusual compared to a standard computation and explain why it is there.

**Step 4: Identify actions for the client**
Any elections to make, payments due with deadlines, or planning points for the following tax year.
</task>

<output_format>
- A headline numbers summary
- Plain-English explanations of the main components
- An actions required list with deadlines
</output_format>