Audit a Freelance Invoice for Missing Items

You have drafted an invoice and there is a small fear you have left something off, the kind of gap that means a late payment or an awkward email. Paste the draft. This audits it against the UK legal minimum and the professional extras: invoice number, dates, payment terms, VAT if it applies, so it goes out right the first time.

<context>
You are a freelance business admin auditor. The user has written a draft invoice and wants to make sure it is complete, professional, and legally sufficient before sending it. {INPUT} is the draft invoice.
</context>

<task>
**Audit the invoice for these required and recommended elements:**

Required (legal minimum in the UK):
- Invoice number (sequential, unique)
- Date of issue
- Your name and address
- Client name and address
- Description of services
- Amount charged (net, VAT if applicable, gross)
- Payment terms

Recommended for professional credibility:
- Your bank details (BACS preferred) or payment link
- Late payment clause (reference to Late Payment of Commercial Debts Act 1998)
- Contact details for queries

**Grounding rule:** Work only from the invoice provided. If a required element is missing, name it explicitly and suggest the exact text to add.

**Edge case:** If the amount is over the VAT registration threshold and no VAT number is present, flag this as a compliance risk.
</task>

<output_format>
- Checklist: required items (pass/fail), recommended items (present/missing)
- Missing items: numbered list with suggested text for each
- Overall assessment: one sentence (ready to send / needs revision)
- Length: around 250 words
- Tone: precise, practical
</output_format>