Support Rajiv Singh

Hi, I’m Rajiv — a Certified Public Accountant and Fellow Member of both AIA (UK) and ICAI (India), with over 20 years of experience in accounting, tax, and financial technology.

I run my own accounting and tax advisory firm CoreAdviz Accountants, supporting individuals, startups, and global organisations in navigating complex tax, compliance, and financial transformation challenges. Alongside this, I work as a subject matter expert in finance and tax technology, helping financial services firms across the UK and internationally implement smarter, tech-driven solutions.

My passion lies at the intersection of finance, technology, and innovation. I specialise in:

- Tax advisory and compliance

- Business analysis and product ownership

- Building bespoke systems and applications

- Leveraging cloud analytics and Generative AI to improve efficiency and decision-making

Over the years, I’ve helped organisations scale from startup to enterprise by automating processes, improving workflows, and turning data into actionable insights.

I also build practical tools for the community, including:

- TopTaxCalculator.com – a FREE web app designed to simplify tax calculations

- myToast Tax Newsletter – sharing insights on tax and finance

- Practexa practice management tools for accountants and portal for client powered by AI (currently being used by my firm)

My goal is to make finance and tax more accessible through a combination of strategy, technology, and real-world expertise. You can follow me on Instagram handle @ca.rajiv4tax or connect me on Linkedin : https://www.linkedin.com/in/rajivsinghcoreadviz/

💡 Note: Tools and content I create on TopTaxCalculator are free for general guidance only and not a substitute for personalised professional advice. I strongly recommend to take professional advice from Tax Advisor practising in UK to help you in any decision making.

If you want me to continue building free calculators, please support me at buymeacoffee.com/carajiv4tax