Helping You Build a Thriving, Financially Secure Business

Hi, I’m Serina, the Director of Serenity Accounting Services and the creator of Calm and Calculated.

With years of experience helping health and wellness professionals and service-based business owners navigate the financial side of their businesses, I understand the unique challenges you face. Whether you're a coach, consultant, personal trainer, or entrepreneur, managing business finances, taxes, and cash flow can feel overwhelming—but it doesn’t have to be.

That’s where I come in. I provide tailored accounting and bookkeeping solutions that not only ensure your business stays financially healthy but also free up your time and energy so you can focus on what you do best—serving your clients and growing your business.

What You’ll Find on Calm and Calculated

✅ Small Business Accounting Tips – Learn how to manage your finances with confidence.
✅ Bookkeeping & Tax Guidance – Stay on top of your records, taxes, and compliance.
✅ Financial Planning for Growth – Scale your business with smart financial strategies.
✅ Work-Life Balance for Business Owners – Build a thriving business without burnout.

Through Calm and Calculated, I aim to make business finances simple and stress-free, giving you the financial clarity you need to grow and scale.

Let’s turn financial confidence into your greatest business strength—because when your finances are calm and calculated, you have the freedom to scale, succeed, and thrive.

Download Your Free 2025/26 Business Tax Calendar – Stay Organised & Stress-Free

Never miss a deadline again. Get instant access to your printable calendar with all the key HMRC tax dates – perfect for UK sole traders, limited companies, and wellness business owners.

Tax Year-End Checklist – What Health & Wellness Business Owners Need to Do Now

As a health and wellness business owner, you’re focused on helping others feel their best—but don’t forget to look after your own business health too. With the UK tax year ending on 5th April, now is the perfect time to give your finances the attention they deserve.

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Balancing Business and Wellness: Work-Life Balance Tips for Entrepreneurs

As a health and wellness entrepreneur, you know the importance of balance—but when you’re focused on supporting clients, it’s easy to neglect your own well-being.

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5 Financial Mistakes Small Business Owners Make and How to Avoid Them

When it comes to running a successful health and wellness business—be it a sole trader’s private counselling practice or a limited company managing multiple fitness studios—stability often hinges on how well you handle your finances.

Read More

Download Your Free 2025/26 Business Tax Calendar – Stay Organised & Stress-Free

Never miss a deadline again. Get instant access to your printable calendar with all the key HMRC tax dates – perfect for UK sole traders, limited companies, and wellness business owners.