Self-assessment returns, allowable expenses, HMRC correspondence and payment planning — handled clearly, affordably, and always on time.
Chartered accountants for founders, directors and landlords.
Whether you’re filing your first self-assessment, managing a property portfolio, or scaling toward your first fundraise — Northwyn brings Big 4 rigour without the Big 4 distance.
Trusted by Business Owners Across the UK
Software Partners
Who we are
Big 4 experience. Boutique attention.
Northwyn is a boutique accounting and advisory practice built on Deloitte, EY and PwC experience.
We support individuals, landlords, founders and directors — from first self-assessments to exit planning — across bookkeeping, company accounts, payroll, HMRC guidance, and fractional CFO advisory.
One person throughout. Present when it matters, not just at year-end. Big 4 rigour, without the Big 4 cost or distance.
ICAEW Firm No. C011009766 · Company Registration No. 17235599 · Registered in England & Wales
£2B+
Transaction value across prior engagements
Big 4
PwC • Deloitte • EY
40+
Businesses advised across 12+ years
ACA
ICAEW Chartered Accountant
who we serve
Expert advice for every client, at every stage of the journey.
From sole traders filing a first self-assessment to directors managing complex group structures — the same senior attention applies to every engagement, regardless of size.
Rental income tax, Section 24 implications, property allowances and portfolio structuring for HMO and buy-to-let owners at every scale.
Director salary and dividend planning, company accounts, corporation tax, payroll, and year-round statutory compliance — structured to be tax-efficient.
From early-stage bookkeeping to board-ready management accounts — we scale with your business, adding depth in reporting and controls when…
Managed payroll, financial reporting, internal controls, and fractional CFO support for businesses scaling from £2m toward £50m and beyond.
IR35 guidance, limited company setup, efficient remuneration structures, quarterly VAT returns, and HMRC compliance — handled precisely.
what we do
One firm. Every service you need.
A deliberately full-service offer — so as you grow, you never need to leave Northwyn. From your first tax return to your first fundraise.
1/6
Self‑assessment & personal tax
Accurate, on‑time returns for sole traders, landlords, directors, and complex income sources.
3/6
Company accounts & corporation tax
Statutory accounts, CT600, Companies House filings, R&D claims.
5/6
Financial reporting & controls
Board packs, investor reporting, internal controls, audit readiness.
Testimonials
Northwyn restructured my income across both my company and employment, explained everything clearly, and gave me complete confidence in my financial position.
Before Northwyn, I was never fully confident things were being handled properly. Now everything is clear, proactive, and taken off my plate.
Meet The Founder
The adviser behind every engagement.
Ramoni Tijani
Founder & Principal Adviser — Northwyn Accounting & Advisory Ltd
A property investor once told Ramoni he had received three different answers to the same structuring question — from three advisers he’d never chosen to work with. That conversation led, eventually, to Northwyn.
Before founding the firm, Ramoni spent his career across Deloitte, EY and PwC, advising high-growth private businesses and listed groups. The work was technically rigorous — but as advice moved further from senior decision-makers, it also became more generic and more cautious.
Northwyn removes that separation. It’s a deliberately lean practice built to keep clients connected to senior-level judgement throughout — no handover chain, no gap between analysis and advice.
Ramoni’s focus: tax efficiency, ownership structuring, and long-term planning for business owners and property investors — advice built to hold up in practice, not just in principle.
Selected Experience
PwC — Accounting services
EY — Advisory
Deloitte — Accounting and Financial Reporting
