Specialist Tax Advice for UK Businesses
Supportive, Specialist Tax Advice
We specialise in areas where tax becomes technically challenging and where getting the detail right matters. Our approach combines technical expertise with practical commercial understanding, helping business owners make informed decisions and achieve the best outcomes.
Whether you're investing in innovation, rewarding key employees, restructuring your business or planning for a future exit, we provide clear advice that helps you move forward with confidence.
Trusted adviser to UK business owners
- Chartered Tax Adviser
- Specialist Tax Advice
- Software, Engineering & Environmental Businesses
- Nationwide Support
Our Services
- R&D Tax Relief
- Patent Box Relief
- Corporate Restructures
- Employee Rewards, Incentives & Share Schemes
- Succession and Exit Planning
- Technical Support and Opinions
- Tax Compliance
Meet our founder
I'm Tim Johnson, founder of Greenuna Tax and a Chartered Tax Adviser.
I established Greenuna to provide specialist tax advice that combines technical excellence with a practical understanding of how businesses operate.
Over the years I've worked with founders, directors, accountants and growing businesses, helping them navigate complex tax issues and make confident decisions.
My background in science and passion for the natural world have led me to work primarily with software, engineering and environmental businesses.
Our goal is to provide clear advice, produce high-quality work, and build long-term relationships based on trust.
Need Specialist Tax Advice?
If you are a business owner looking for support, or an accountant seeking specialist input for a client, we'd be happy to discuss how we can help.
Book an initial conversation and let's explore your options.