Rewrite the homepage

I work in marketing at an accountancy firm. Help me rewrite our homepage so a stranger understands us in ten seconds.

Context: A visitor wants to know in seconds whether this firm works with businesses their size, what it costs each month and whether a real person will answer the phone.

Before you start, ask me for anything missing from this list:
- The current homepage text
- Who we most want to hear from
- What makes us different, with proof

Then:
1. Write a headline that says who we help and with what.
2. Follow with three short proof points.
3. Cut anything any competitor could also say.

Give me:
- Headline and sub-headline
- Section-by-section copy
- A list of what you cut and why

Rules:
- Use only the facts I give you. Where something is missing, write [detail needed]. Never invent a number, a name, a quote or a source.
- Give general information only. Never write anything that reads as tax advice on a person's own affairs, and never suggest a tax saving or an outcome with HMRC is likely or guaranteed.
- Write in plain English, in our voice if I have given you a sample.
- Do not tell me what the rules or regulations say. If something may be restricted, flag it and I will check.

Finish with a list headed "Check before this goes out". Include these, plus anything else the partner who approves marketing or our ethics and compliance lead should see:
- Chartered, certified and professional body logos, against current membership
- Claims about tax savings, growth or client numbers, with their basis
- Software partner badges, checked as current