Southampton 02380 332882 Portsmouth 02392 756440 Winchester 01962 795001
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Bookkeeping

Professional bookkeeping services for businesses across the UK

Reliable, transparent bookkeeping that gives your business clarity, control and confidence.

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The service

Reliable bookkeeping for businesses of all sizes

Bookkeeping keeps financial activity organised from the first entry to the final report. Day-to-day bookkeeping involves recording income and expenses in a structured, consistent manner so every transaction has a clear place in the accounts. Accurate financial records show how money moves through the organisation, giving decision-makers reliable insight rather than assumptions.

Detailed income and expense tracking helps highlight spending trends, growth areas, and potential gaps in incoming or outgoing funds. When records are maintained properly, they are already aligned with VAT requirements, making quarterly submissions smoother and reducing correction work.

Bookkeeping matters because it forms the foundation of financial clarity. Well-kept records support planning, reduce the risk of errors, and give organisations a dependable understanding of their financial position. Our bookkeeping services ensure that year-end accounts are completed smoothly, and records are maintained with consistency throughout the year.

Bookkeeping services play a crucial role in keeping financial records organised, accurate and easily accessible when needed. Whether you're a small business in Southampton, Winchester or Eastleigh, we can help reduce financial stress by ensuring your accounts are always in order — so you can focus on what matters most.

25+Years handling work like this
15Specialists across the practice
ICAEWRegulated chartered accountants
XeroGold Partner, Making Tax Digital ready

What it means for you

The difference a chartered accountant makes

What's included

Everything covered as standard

Ask about your business

Day-to-day bookkeeping

Consistent daily recording keeps income and expenses accurate, organised and clear for financial tracking.

VAT-ready records

Well-structured records maintain clarity and compliance, supporting smooth and accurate preparation of VAT information.

Bank reconciliation

Regular reconciliation matches bank transactions with records, preventing errors and strengthening transparency in reporting.

Support for account preparation

Clean, organised records kept year-round make year-end account preparation easier, accurate and consistently dependable.

Tailored to you

Bookkeeping shaped around your business type

At Mandair & Co we shape our bookkeeping services around your business type to support organised records and straightforward financial reporting.

Sole traders

Bookkeeping helps sole traders maintain clear, organised records.

Limited companies

Structured records give limited companies the data they need for reporting.

Partnerships

Bookkeeping keeps partnerships aligned through clear, shared records.

Areas we serve

Bookkeeping across Hampshire and the surrounding areas

Businesses across the UK can manage their finances more easily, whenever they want, without being limited by location. At Mandair & Co we provide bookkeeping services that keep your records updated daily and your financial activity clear. Our systems fit smoothly into existing workflows, helping you stay organised without disruption, and secure document sharing protects sensitive information.

We maintain consistent bookkeeping throughout the year by recording every transaction in a structured format. This keeps income and expenses current, reduces errors and supports better financial awareness. VAT-ready records are maintained as part of our routine processes, helping accountants prepare submissions efficiently and without unnecessary delays.

Also covering

  • Southsea
  • Gosport
  • Portchester
  • Hayling Island
  • Lee-on-Solent
  • Fareham
  • Havant
  • Waterlooville
  • Stubbington
  • Leigh Park
Find your nearest office

More from Mandair & Co

Other services

Why choose Mandair & Co

Why clients choose us for this

Talk to an accountant

Personal client manager

Although we are a small practice we take a great interest in all of our clients. Each client is allocated a client manager to assist with all your business queries, so we understand your business and its needs.

Software support

Help and guidance on an accounting package to suit your business, its needs and your budget. Our trained staff know packages ranging in specification and price, so the software you use actually works for you.

Complete peace of mind

Trading since 1999, with trained staff and the reassurance that your accounting is in good hands. As a firm we are members of, and regulated by, the Institute of Chartered Accountants.

Regulated & accredited

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Frequently asked questions

Bookkeeping

Still not sure? Call the office nearest to you — we will give you a straight answer before you commit to anything.

Ask us a question
What is bookkeeping?
Bookkeeping is the recording of daily financial activity, including income, expenses and payments, while maintaining organised, accurate records. Good records give you financial control and support better decision-making.
How often should bookkeeping be done?
Regularly — ideally daily or weekly, depending on your transaction volume. Keeping on top of it prevents errors, avoids backlogs, maintains accuracy, supports cash flow awareness and makes VAT and year-end preparation much smoother.
What records are required for bookkeeping?
Income, expenses, invoices, receipts, bank statements and documentation of payments. Organised records make verification easy, support compliance and maintain a reliable picture of the business.
Is bookkeeping legally required?
UK regulations require records to be kept for tax purposes and for inspection. Proper bookkeeping meets that legal obligation, supports HMRC compliance and makes sure the information is available if the authorities ask for it.
How does bookkeeping support year-end accounts?
Regular entries throughout the year reduce errors, save preparation time and mean the figures are ready for review — which makes the final accounts easier to produce and more reliable.

Client reviews

What our clients say

Google Reviews from Google

Richard, Tawny, Ayesha and the team have looked after our company and personal accounts for around the last 20 years. Richard is very approachable and will always help, as does Tawny. Their pricing is reasonable and, although possibly not the cheapest, is well worth the cost for the services they provide. I wouldn't hesitate to recommend Mandair & Co.

LPLynnette PackClient of 20 years

I can't recommend Mandair & Co enough! They've been my absolute guardian angels since becoming self employed and I love working with them. Amazing value for money, very responsive with a can-do attitude, always putting their clients first! 100% recommended.

ATAgata TomaszewskaSelf-employed

Amri and the team have made my first 2 years of self-employment super easy and stress free! They are great at explaining things I'm not sure about, they are quick at responding to emails and always provide me with great advice on how to be more efficient with books etc. I would highly recommend to anyone, top quality service!

PPPollyanna PhillipsSole trader

I have used Mandair accountants for over 10 years and they have always been very friendly and helpful when I have needed their help with my accounts. The team are always very attentive with my affairs which gives me great peace of mind. Cannot recommend them enough.

DGDaniel GlassClient of 10+ years

We have used Mandair & Co as our accountants for over 10 years. We did try another company who promised the earth for a short while, but soon found that we were paying twice the price for no extra value and returned to Richard and his team.

BABEST Autocentres LtdLimited company

Helped me with business set up. Gave me excellent advice.

GJGuy JonesBusiness start-up

Free initial consultation

Talk to us about bookkeeping

Tell us what you need and we will tell you what it involves and what it costs — before you commit to anything.

  • A free initial consultationBook your free initial consultation with our team.
  • A personal client managerEach of our clients is allocated a client manager to assist you with all your business queries.
  • Fees agreed up frontThere are no hidden costs and all fees are agreed, so there are no nasty surprises. Pay by the hour or on a fixed-fee basis.
  • Regulated by the ICAEWAs a firm we are members of, and regulated by, the Institute of Chartered Accountants.

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Est. 1999 · Over 25 years in practice

Book your free initial consultation

Tell us where your business is now and we will tell you, plainly, what we would do about it — before you commit to anything.