Bookkeeping & VAT | Year End Accounts & Corporation Tax | Payroll Management
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Tax Claims and Refunds - CIS | Partnership, Property Accounts & Returns | Tax Advisory Services & HMRC Investigations
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Management Accounting | Company Company Self-Assessment & Personal Tax Returns
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Expert Care for Business Success

Accountants in Slough

As a leading accountancy firm near you, we provide innovative accounting solutions to scale your business growth to the next level.

15+
Years of Experience
250+
SMEs Supported
1000+
Clients Served
5.0
Google Rating

Who we Help?

Limited Companies

Sole Traders/Self Employed

Contractors & Subcontractors

Landlords & Property Owners

Welcome To Additions Plus Accountants
Your Local Accountancy Experts in Slough & Berkshire for Over 15 Years

At Additions Plus, we offer more than just numbers — we deliver clarity, confidence, and a genuine commitment to your financial success. Based in Slough and proudly serving the surrounding Berkshire area, we’ve been supporting small businesses, start-ups, and individuals with trusted accountancy services for over 15 years.

We provide our services for more than 250+ SMEs across various industries such as Construction, Transport, Property, Business Consultancy, Information Technology, Healthcare, Restaurant, Wholesale and Retail Trading across the island. Also, we cater to 1000+ individual clients in each financial year throughout the United Kingdom.

Whether you’re launching a new business or managing growth, our qualified team provides expert advice and practical support tailored to your unique needs. We understand the challenges small businesses face — and we’re here to make things easier.

What Makes Us Different?

We’re not just accountants — we’re proactive partners in your business journey. From bookkeeping and tax returns to consultancy and compliance, we offer complete, end-to-end financial solutions with a personal touch.  Let’s take the stress out of your accounts — and help your business thrive.

Simplify Your Finances

Our Comprehensive Accounting Solutions

Our online accountancy services take your stress away and help your business thrive.

Bookkeeping & VAT Returns

Track daily transactions and ensure accuracy in VAT records

Year-End Accounts & Corporation Tax

Meet strict filing deadlines and handle all HMRC correspondence

Payroll Management

Handle wages and process deductions with precision

Company Formation & Secretarial Services

Register business with HMRC and manage ongoing legal compliance

Self-Assessment & Personal Tax Returns

Organise your financial records and reduce overall tax bill

Quarterly Tax Returns – Making Tax Digital (MTD)

Analyse and interpret your business’s financial data

Partnership, Property Accounts & Returns

Simplify complex partnership and property finances

Tax Claims & Refunds (CIS)

Prepare and submit accurate self-assessment tax returns

Tax Advisory Services & HMRC Investigations

Optimise tax efficiency and negotiate settlements

Make Business Finances Simpler and More Efficient

Why Professional Accountants Matter?

At Additions Plus, we offer more than just numbers; we deliver clarity, confidence, and a strong commitment to your financial success.

Reduce Costly Errors

Eliminate the risk of late filing fines and compliance errors

Time-Saving

Let you focus on customer relationships and the company’s growth

Precise Financial Reporting

Support smarter and more strategic business decisions

Peace of Mind

Keep you informed about financial position and capacity

Affordable, Best Accountants You Can Rely On

Your Trusted Partners for Financial Success

From maintaining accurate records to navigating complex tax regulations, let our experienced accountants in Slough give you peace of mind in every aspect.

Convenient Appointment

Evening and weekend availability to suit your schedule

Fully Compliant

Adhere to local regulations and tax laws

Certified & Licenced Accountants

Up-to-date with current industry trends and technologies

Personalised Services

Bespoke accounting solutions that align with your business

Your Business, Our Accounting Expertise
Financial Solutions for Every Sector

Construction

Transport

Healthcare

E-commerce

IT & Technology

Hospitality

Real Estate

Find Useful Information for Your Finances
Quick Links for Best Financial Management

Explore valuable business insights to keep your business fully compliant

What to do if you're due a tax refund or owe tax

Check when you can expect a reply from HMRC

Your tax code - what it means and why it might change

HMRC compliance checks: help and support

Download the HMRC app

Self Assessment tax returns

How does VAT work

PAYE: detailed information

Corporation Tax rates and reliefs

Pay your Self Assessment tax bill

Pay employers' PAYE

If you cannot pay your tax bill on time

What Our Clients Say

Trusted By Businesses & Individuals

Real feedback from real clients on Google.

Posted on Google Google
Ramdhan Apriana profile picture
Ramdhan Apriana
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Nice to try it, very recommended.
Posted on Google Google
Claire Rose profile picture
Claire Rose
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Reliable, friendly accountants; sorted my tax return efficiently, brilliantly.
Posted on Google Google
Flory Gomez profile picture
Flory Gomez
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I highly recommend, the support and advice are upmost valuable . They are always accessible, always reliable , on your best interest . They are absolutely fantastic!
Posted on Google Google
Simon Stokes profile picture
Simon Stokes
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I have been using Additions Plus now for a year and I cannot rate them highly enough for their attention to detail and ability to make my life easier when dealing with my accounts. Raj and the team have been nothing but a delight to deal with. I thank them all for their advice and help along the way. No questions or tasks are too much, they work quickly and efficiently with everything they do. I can’t ask for anything more in help with my accounts.
Posted on Google Google
ramesh parmar profile picture
ramesh parmar
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Additions Plus Where the winning formula equates to the correct answer, All this collated from the a pile of invoices and receipts, resulting with them dealing with the appropriate company(s) with the frightening acromion like H.M.R.C & V.A.T. Leaving me stress free with the acromion that I understand at the end of the week, B.A.R & V.A.T.
Posted on Google Google
Sunny profile picture
Sunny
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Been using them for many years and would not hesitate to recommend highly.
Posted on Google Google
Terry Grant profile picture
Terry Grant
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I have been using Raj and her team for my business and personal accounts for over 20 years and have always found their service to be exceptional. Never missed a deadline, always available to discuss anything, no hidden extra charges, friendly and helpful service, reasonable charges. I really cant fault them....which is why I never even consider going elsewhere 🙂
Posted on Google Google
Sukhbir Sidhu profile picture
Sukhbir Sidhu
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Always a prompt and highly professional service. I would recommend this firm without hesitation.
Posted on Google Google
GIANNIS MASTRANTONAKIS profile picture
GIANNIS MASTRANTONAKIS
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Work with additional plus Is a pleasure These are correct people for the work My company have change 3 accounts in the past Bit now we are not going to change again We high recommend additional plus

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Help Section

Frequently Asked Questions

Why should I use a tax accountant in Slough (SL)?

A professional tax accountant in Slough can help you manage tax obligations accurately, meet HMRC deadlines, and identify legitimate tax-saving opportunities.

Yes. Our small business accountants provide tailored accounting solutions for startups, sole traders, and SMEs, helping them manage finances, compliance, and business growth.

Absolutely. A dedicated personal accountant can assist with self-assessment returns, tax planning, and day-to-day financial matters.

Our tax advisors provide practical guidance on tax planning, compliance, and financial efficiency to help reduce unnecessary tax liabilities.

Do your chartered accountants prepare year-end accounts?

Yes. Our chartered accountants prepare year-end accounts, corporation tax returns, and statutory filings accurately and on time.

A tax consultant offers expert advice on tax regulations, planning strategies, and guidance for HMRC matters to help individuals and businesses remain compliant.

Yes. We maintain accurate financial records and prepare VAT returns to help businesses stay organised and compliant.

Yes. We handle payroll processing, employee deductions, pension contributions, and HMRC reporting requirements.

Count On Us for a Strong Financial Future

From bookkeeping and tax returns to consultancy and compliance, we offer complete, end-to-end financial solutions with a personal touch. Contact us today to book your free consultation!