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Meet Your Dedicated Accountant

Simplex was founded on a simple belief: small businesses deserve the same quality of accounting advice as the big firms — without the big firm price tag or impersonal service.

LF

The Simplex Story

Simplex Business Support was founded by Luis Filipe to bring something different to small business accounting: fixed fees, genuine accessibility, and a personal service that actually feels personal.

After more than 12 years in the accounting industry, Luis saw the same problems over and over — hidden fees, faceless firms, accountants who treated small businesses as an afterthought. So he built Simplex to be the opposite.

Based in South East London and serving clients nationwide, Simplex operates on a WhatsApp-first model. Your accountant is just a message away — no tickets, no call centres, no waiting days for a response.

Every client gets one dedicated accountant who knows their business inside out. Fixed monthly fees mean no surprises. And because we genuinely care about the businesses we work with, we proactively advise — not just react.

That's accounting the way it should be.

💎 Our Values

What we stand for

Three principles that guide everything we do.

🔍

Transparency

Fixed fees quoted upfront. No hidden charges, no surprise invoices, no "we'll add that to your bill." You know exactly what you're paying before we start — and that number doesn't change.

🎯

Dedication

One named accountant per client. Not a team, not a department — one person who learns your business, understands your goals, and is accountable for your experience. That's the relationship we believe in.

Simplicity

Accounting doesn't have to be complicated. We strip away the jargon, simplify the processes, and make it easy for you to understand your numbers. If we can't explain it simply, we haven't understood it well enough.

📊 By the Numbers

Trusted by hundreds of UK businesses

100+
Businesses Served
10+
Years Experience
4.9★
Trustpilot Rating
HMRC Registered Agent
🏅 Credentials

Qualifications & Registrations

Fully qualified, fully registered, fully committed to your success.

🏛️
HMRC Registered Agent
Authorised ACSP
📋
MTD Compliant
🔐
ICO Registered
☁️
Xero Certified

Ready to work
with us?

Book a free, no-obligation chat. Let's talk about your business and how we can help.