Accounting Services for Businesses, Startups & Entrepreneurs in Slough and London

We’ll take care of the accountancy and bookkeeping, so you don’t have to.

Maintaining accurate financial records is the backbone of any successful business, and at SBX we take this responsibility seriously. Our bookkeeping services offer:

Professional Accounts Preparation for Every Business Type

Whether you run a limited company, an LLP, or operate as a sole trader, SBX Accountants provides complete accounts preparation and filing services designed to keep your business compliant, organised, and ready for growth. Our team of Chartered Accountants manages your records from start to finish, ensuring accuracy and timely submissions to HMRC and Companies House.

From statutory submissions to real-time financial reporting, we tailor our accounting services to match how your business operates, digital-first, efficient, and always ahead of deadlines.

We can take care of your self-assessment, business Tax Returns and HMRC compliance

Filing tax returns can be stressful and time-consuming. At SBX Accountants, we manage the full process for you so you can focus on running your business confidently and stay compliant with HMRC requirements.

We provide complete, responsive support to help you stay compliant and identify potential tax savings across your business and personal finances.

Payroll and CIS Services for Small Businesses

Running payroll, pensions, and CIS can take up valuable time. Our payroll services handle everything for you so your business stays compliant, organised, and stress-free.

We also connect your payroll data to your bookkeeping and company tax returns for accurate reporting across your accounts.

Our Chartered Accountants and Business Advisors are on hand to help

At SBX, our Chartered Accountants are here to provide tailored support for growing businesses. Whether you need help with cash flow forecasting, budgeting, or financial modelling, we’ve got you covered. We also offer practical business advice, including recommendations on software solutions that can enhance efficiency and organisation for business owners.

With SBX, you’re not just getting accounting services; you’re gaining strategic partners dedicated to enhancing your business’s success.

Expert Self Assessment Services for Individuals and Businesses

Completing a self-assessment can be time-consuming and stressful if you’re unsure what to declare or how to file accurately. At SBX Accountants, our Chartered Accountants handle every stage of your Self Assessment tax return to make sure it’s correct, compliant, and submitted to HMRC on time.

We provide tailored support for all types of clients, including:

Our Self Assessment service includes accurate tax calculations, HMRC submission, and full-year advice to help you plan for future liabilities and cash flow management.

Start Your Business the Right Way with SBX Accountants

Getting your business set up right from day one saves time, tax, and future headaches. At SBX Accountants, we guide startups, contractors, and small business owners through every step of business setup and incorporation, from choosing the right structure to registering with HMRC and setting up your accounting systems.

Whether you’re launching a new business or transitioning from self-employed to a limited company, SBX Accountants gives you a clear, compliant foundation to build on.

Keep Your Company Records Compliant with SBX Accountants

Staying compliant with Companies House and keeping your company records accurate is a legal responsibility for every limited business. Our company secretarial services make it simple. From filing your confirmation statement to updating director details or closing a company, SBX Accountants handles every step quickly, correctly, and on time.

Our expert team ensures your company remains compliant, up to date, and properly registered with Companies House, saving you time and protecting your professional credibility.

When you join SBX Accountants, we go beyond standard accounting services. Our new client promise gives you the confidence that your accounts, tax, and bookkeeping are handled by Chartered Accountants who understand small business needs. Here’s what you can expect when you come on board.

Our SBX Client Portal, powered by TaxDome, gives you a simple way to manage documents and approvals. Use the mobile app to scan and upload receipts and invoices, sign documents electronically, message our team securely, and view billing and payments in one place.

IR35 is a UK tax legislation aimed at preventing tax avoidance through disguised employment. It ensures that employers cannot hire workers on a contract basis to bypass employment benefits and Employers’ National Insurance Contributions.

Understanding whether your work falls inside or outside IR35 is crucial for paying the correct taxes and avoiding HMRC penalties. This guide provides an overview of IR35 to help you stay compliant. For more detailed insights, explore our comprehensive IR35 resources to better navigate these complex rules and assess your status accurately.

At SBX Accountants, we combine expert financial guidance with practical solutions that keep your business compliant, organised, and ready for growth. Here’s how we help every client stay in control of their finances.