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Trusted Accountants in London
for Tax & Accounting Services

Reliable, professional, and accurate accounting services for individuals and businesses across the UK. We help you stay compliant, reduce stress, and manage your finances with confidence.

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Experienced Accountants

Over 20 years of experience

HMRC Compliance

Strong knowledge of HMRC

Personalised Service

Tailored accounting solutions

Trusted by Clients

Building lasting relationships

Five Star Reviews

Client Value Delivered

Who Wer Are

Your Trusted Accounting Partner in London

We are a dedicated accountancy firm supporting individuals, sole traders, and growing businesses across the UK. With years of experience and in-depth knowledge of HMRC regulations, we provide reliable, compliant, and practical financial solutions tailored to your needs.

Our team consists of experienced and qualified accounting professionals who ensure HMRC-compliant, accurate, and timely submissions. We offer transparent pricing with no hidden fees and provide personalised support through a dedicated accountant who understands your business.

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What We Offer

Our Accounting & Tax Services

We offer a complete range of accounting and tax services designed to keep your finances organised, compliant, and running smoothly.

Tax Returns & Compliance

We handle self-assessment, corporation tax, and partnership tax returns with accuracy and efficiency. Our service ensures you meet HMRC deadlines while minimising errors and avoiding penalties.

Business Accounting Services

Comprehensive accounting solutions for sole traders, partnerships, and limited companies. We help manage finances, maintain compliance, and support business growth.

VAT & Bookkeeping

From VAT registration to ongoing bookkeeping, we ensure your records are accurate and up to date. Our services help you stay organised and compliant with HMRC requirements.

Payroll & CIS Services

We provide reliable payroll management, pension compliance, and CIS return services. Our team ensures employees and contractors are paid correctly and on time.

Self-Assessment Tax Returns

We handle your self-assessment tax returns efficiently, ensuring correct calculations and timely submission. Our goal is to minimise your tax liability while keeping you fully compliant.

Bookkeeping Services

We maintain accurate and up-to-date financial records, giving you a clear view of your business performance. Our bookkeeping supports better decision-making.

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Client Reviews

Trusted by Long Term Clients

Hear from our clients who trust BS Accounts for reliable, accurate, and professional accounting services delivered with consistency and care.

K B

Arash and the team at Booksmart Accountancy have always provided me with expert advice in relation to my accounts. The team at Booksmart are very professional, and always give clear advice and guidance in a prompt and efficient manner, they will go above and beyond to help you. I highly recommend them.

Brent Davies

I have used booksmart accountancy for the past 5 years, I have to say they provide an excellent service. Even since leaving London I have stayed with them as there customer service is excellent. I would recommend booksmart to any company. Thanks for your service over the years. Bd security consultancy Ltd, keep up the high standards.

Romal Zane

Very professional accounting firm, always going the extra mile to help me and to make sure they’re doing the job right! Using them has definitely made my life easier and I would recommend them to anyone who’s looking for quality, professionalism and good value for money. Positive: Responsiveness, Quality, Professionalism, Value

Roman Wisniewski

Very professional and efficient service provided. Arash and his colleges from BSA has been helping me for 9 years filling self Assesments and looked after my limited company on monthly basis without any problems. Everything was always clear and straight forward. Even at the last minute they got the job done and when I moved my Bussiness to Reading I’ve kept using BSA. I would certainly highly recommend. Great job, thank you!

Removal Remedy

Book Smart Accountancy and the whole team are brilliant. They are always there when you need them, otherwise working away on your behalf in the background. HIGHLY RECOMMENDED... Go talk to them and you will immediately get the feeling of comfort. Before selecting them we saw 4 different firms - after the meeting with Masih, the choice was made - said all the right things. AND 3 years in we know they deliver.

Danielle O

I have been self employed for over 10 years, after a last minute emergency with my previous accountant who was unable to do my accounts. I contacted Arash and I explained my situation with my overdue accounts for 2024/2025. Arash was super helpful and took on my tax return. Everything was done quickly and efficiently. Would definitely recommend this company to do your tax return and I will be returning next year.

Barkha Sennik

Arash is a complete professional - knowledgeable, courteous and pleasant. No question whether simple or complicated is too much for him to handle. He completes the work when he says he will. I highly recommend Arash.

James Fraser-gadd

Booksmart Accountancy have been very helpful with assisting me in various parts of my self assessment and company accounts. Very efficient and fairly priced. Would highly recommend.

Your Questions, Answered

Frequently Asked Questions

We offer a full range of accounting services including tax returns, bookkeeping, VAT returns, payroll, CIS returns, company formation, and business tax planning for individuals and businesses across the UK.

Yes, we specialise in supporting small businesses, sole traders, partnerships, and limited companies with tailored accounting solutions.

We ensure all your tax returns and filings are completed accurately and submitted on time. Our expertise in HMRC regulations helps you avoid penalties and stay fully compliant.
Yes, we provide professional tax planning advice to help you legally minimise your tax while staying compliant with HMRC rules.
Yes, we provide complete bookkeeping and payroll services, ensuring your financial records are accurate and your employees are paid correctly.

You can contact us for a free consultation. We will understand your needs and recommend the best accounting solution for you.

Ready to Take Control of Your Finances?

Partner with experienced accountants who understand your business and keep you fully compliant with HMRC — without the stress.

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