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Personalised tax and accountancy support for you and your business.

Trusted by our valued clients.

★★★★★

Welcome to Alexander & Sister

We are a family-run business, specialising in business tax and guiding you through the upcoming basis period reform.

We understand that keeping on top of your accounts can be a big cause of stress, especially when there are other aspects of your business that require your attention.

a person is using a pos machine in a store
a person is using a pos machine in a store
person using silver MacBook
person using silver MacBook
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a group of blue and white boxes

The Basis Period Reform

Many people whose accounts are not drawn up to the tax year have been reaching out for support in filing their 23/24 self-assessment.


We have made it our mission to help people navigate the upcoming changes which will be implemented due to the Period Basis Reform.

Focusing our expertise on the reform allows us to make information on this subject accessible and actionable for those who need it. We want to ensure that our clients have all the tools they need to avoid potential pitfalls while they stay ahead of the curve, remain compliant, and make informed decisions in the face of these changes.

Our Services

Bookkeeping, personal and business taxation tailored to your needs

Book Keeping

Personalised help with self-assessment taxes, ensuring you meet all requirements and deadlines effortlessly.

Self-Assessment Tax Returns

As a family business, we prioritize your needs and offer a warm, approachable service experience.

Tax Advice

We can help you navigate the complexities of personal and business taxation.

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Alexander & Sister made my tax process easy and stress-free. Highly recommend their friendly service!

June Braddock

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black ceramic mug beside white printer paper

The team was incredibly helpful with my self-assessment. They truly care about their clients!

Patrick Cornell

person holding paper near pen and calculator
person holding paper near pen and calculator
★★★★★
★★★★★