Accountancy Firms Portsmouth

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Keeping your finances in order is never an easy task, but it needn’t be impossible. Here at Mandair & Co, we have served as chartered accountants for nearly 20 years and have earned ourselves a reputation worthy of praise. From self-employed individuals manage their finances to large companies in balancing their books, we are one of the most trusted accountancy firms Portsmouth has to offer. To learn more about how we can assist you, call us today on 02392 756440.

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Discover the Leading Name in Accountancy Firms in Portsmouth

When it comes to choosing between different accountancy firms, Portsmouth business owners should always select a company that they can trust. This is why Mandair & Co are so highly sought after. With years of experience and an impressive portfolio of clients, our customers recognise that we are deserving of their trust. What’s more is that our services are an affordable means of managing your finances, so that you won’t be left out of pocket.

We can assist with many different facets of your business. So, whether you’re in the process of starting up a new venture or looking to expand your operations; we are here to help. Unlike many other Portsmouth accountancy firms, our services are enriched by the many, and varied skill sets that each member of our team brings to the table.

With 15 dedicated experts stationed throughout our three accountancy firms, Portsmouth can rest assured that we are well-placed to assist with a variety of areas from taxation to business start-up advice. To learn more about our core services, continue reading below.

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02392 756440

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Accountancy Firms, Portsmouth Can Rely On

Here at Mandair & Co, our chartered accountants are on hand to assist with a variety of different tasks, including:


Account Preparation

During those early days, a business requires every minute of your attention in order for it to be successful. This doesn’t always leave time for account preparation which is required by law. We are one of the leading accountancy firms in Portsmouth when it comes to providing professional account preparation. We’ll ensure that your company’s financial statement is correctly put together and everything is ready for the HMRC and Companies House.



Every business owner must balance the books in order for their company to be financially successful. Bookkeeping can be a time-consuming process and rather daunting to the uninitiated. Fortunately, we provide a full bookkeeping and accounts service throughout Portsmouth and the surrounding areas. There are benefits to enlisting us for bookkeeping instead of other accountancy firms Portsmouth:

Accountancy Firms Portsmouth

  • Personal Client Manager
  • Software Package to Suit Your Requirements
  • On-going Support
  • Convenience and Flexibility
  • Value for Money


Business Start-Up

At Mandair & Co, we can assist businesses that are just starting up helping them to get off the ground and to start generating income. Flexibility is key, and you need a company that can adapt to your ever-changing needs. We deliver a bespoke accountancy service to assist with all financial elements from business structure and setup to your financial requirement, funding, business plans, cash flow projections and much more.

For a business start-up service like no other, enlist Mandair & Co as we excel above all other Portsmouth accountancy firms.



Every company needs to manage its payroll efficiently to avoid any issues which could lead to employee disputes. If not properly handled, employees could end up being under or overpaid, in serious cases, payments could be missed entirely. If the thought of the monthly payroll fills you with dread, let Mandair & Co take the responsibility off your hands.

As one of the best accountancy firms Portsmouth has seen, we provide a complete range of payroll services. Such services include administration of PAYE, national insurance, sick, maternity and paternity pay. We can also take care of your HM Revenue and Customs monthly statutory form submission, bonus payments, incentive schemes, staff benefits, pension scheme setup and administration and more.


Tax Returns

If you’re self-employed, you will be required to fill out a self-assessment tax return. Failure to do so could result in you landing in prison, so it’s essential that you get your self-assessment completed on-time to avoid any legal issues. Our team can stay on top of your payments, expenses and tax deductions and ensure that your annual tax return is completed before the cut-off date. We can also make certain that you’re not paying too much tax.

Taxation, Finance, Accountancy, Business Advice.

Additional Services

From VAT and business analysis to forensic accounting and mediation, at Mandair & Co, you’ll find a wide range of additional services when you choose us over other accountancy firms in Portsmouth. In addition, you’ll also have access to a collection of resources such as income tax calculators to help you in other areas.


Why Choose Mandair & Co?

Established in 1999, Mandair & Co has a long and proud history of providing financial services to clients throughout Portsmouth. Accountancy firms such as ours are far and few between. We have 15 dedicated specialists whose sole purpose is to help you to achieve a financially secure future for your business. Over the years we have worked with many different clients spanning a wide range of different sectors.

From Limited Companies and partnerships to self-employed individuals, whatever your circumstances you can trust one of the best accountancy firms Portsmouth can offer. If your search for a reputable service delivered by industry specialists with an unprecedented level of knowledge has brought you to us, call us now on the number below.



Call one of the finest accountancy firms Portsmouth has seen today on 02392 756440.