Chartered accountants for Southampton businesses, on fixed monthly fees
ICAEW Chartered Accountants in nearby Winchester, working with businesses across Southampton, from the waterfront and city centre to Portswood, Shirley and Totton. Personal, plain-English accountancy from start-up to £10m turnover. Everything is handled online through Xero, email and video calls; when a face-to-face meeting helps, we host it at our Winchester office.
Years of accountancy experience
Chartered Accountants — member no. C011009337
Per month, Xero included
Up the M3 to our Winchester office, or meet by video
Do you have a Southampton office?
No — Lumi is based in nearby Winchester, and that's deliberate: most Southampton clients work through Xero, email and video calls, meeting in person when it helps. We support businesses from SO14 to SO19 and Totton, from start-up to around £10m turnover.
Correct for the 2026/27 tax year · last reviewed September 2026 · Chris Sullivan ACA
Senior, jargon-free accountancy for Southampton, from just up the M3
Southampton is the region's commercial engine: port and maritime, retail, two universities and a deep base of growing SMEs. We give the city's ambitious businesses senior, jargon-free advice without big-firm fees or big-firm distance.
Senior attention, Southampton-wide
You deal directly with a Chartered Accountant, not a call centre. We're just up the M3 in Winchester, and most Southampton clients run everything smoothly online via Xero.
Twenty minutes from the city centre
Abbey Mill is about twenty minutes up the M3 from Southampton, and fast trains from Southampton Central and Parkway reach Winchester quickly. Day to day, Southampton clients work with us online through Xero, email and video calls.
A small firm for a big city
Southampton has plenty of large accountancy practices. If you'd rather deal with one Chartered Accountant who knows your business than a department, that's the difference with Lumi.
Full-service support, in person or online
Whatever your line of work — from marine, logistics and import/export firms around the docks to retail, hospitality and student-economy businesses across the city — we offer the full range of accountancy services to Southampton businesses: accounts, tax, VAT and payroll. Work with us online via Xero, or meet in person whenever it helps.
Sector specialists too: hospitality, and construction & CIS businesses across Southampton get packages built around their industry.
What we see most in Southampton
Southampton is a port city first: cruise terminals, container shipping and a long maritime supply chain, alongside two universities, a big hospitality scene from Oxford Street to Bedford Place, and a growing technology community. Each brings its own accounting quirks.
- Restaurants, bars and cafés Tronc and tips, VAT on food and drink and payroll for large, changing teams.
- Marine, logistics and engineering suppliers Foreign currency invoices, VAT on imports and exports, and job costing.
- Landlords and property companies Rental accounts, company versus personal ownership and Making Tax Digital for Income Tax.
- Tech and creative start-ups Incorporation, director pay and getting set up on Xero properly from day one.
With so much of the city tied to the port and to term-time trade, cash flow can swing month to month. We build that into your forecasts so VAT and corporation tax bills never catch you out.
Straightforward pricing for Southampton businesses
Southampton clients range from Lite for new companies to Complete for established hospitality and trading businesses that want their finance function run for them. Xero is included unless agreed otherwise, and the fee is fixed.
- Xero subscription included (unless agreed otherwise)
- Statutory accounts submission
- Corporation tax calculation & submission
- Director's payroll (1 employee)
- Director's Self Assessment
- Monthly bank reconciliation (up to 50 transactions)
- Email support
- Everything in Lite, plus advanced Xero
- Monthly bank reconciliation (up to 150 transactions)
- Quarterly VAT returns
- Payroll for up to 5 employees
- Email support
- Everything in Core
- Full bookkeeping & transaction processing (unlimited)
- Monthly management accounts
- Quarterly strategy & tax review meetings
- Unlimited phone support
All prices exclude VAT.
Also serving nearby: Eastleigh · Romsey · all Hampshire areas.
Serving Southampton and the wider city
We work with businesses across SO14 to SO19 and out to Totton (SO40), from the waterfront to the suburbs, and with clients who prefer to work entirely online via Xero.
Not on the list? We work with businesses across Hampshire, so get in touch and we'll let you know how we can help.
Accountants for Southampton's hospitality, marine and professional businesses
Southampton is the largest economy on the south coast: a working port city with maritime and logistics at its core, two universities feeding a young workforce, and a diverse base of retail, hospitality, marine and professional firms. Businesses here are often bigger and faster-moving.
An import/export or marine business wrestling with VAT, a multi-site retailer or hospitality group, a growing company that needs proper management accounts: we scale our support to match, and keep the advice refreshingly clear.
Can you handle VAT for marine and import/export firms around the port?
Yes. Southampton's trade, marine and logistics businesses bring us VAT returns with overseas and import VAT considerations as standard, and we keep the bookkeeping behind them tidy in Xero so nothing gets missed at the quarter end.
Do you work with hospitality and city-centre businesses in Southampton?
We do. Cafés, bars, restaurants and multi-site retailers across SO14 to SO19 and out to Totton are a natural fit for our hospitality packages, which start from £220 a month. Larger companies, up to around £10m turnover, usually sit on our Complete package with monthly management accounts.
Do you have a Southampton office?
Not in the city itself. Lumi is based at Abbey Mill in Winchester, around 20 minutes up the M3. Most Southampton clients work with us through Xero, email and video calls, and we meet in person when it helps.
How much does Lumi charge Southampton businesses?
The same fixed monthly fees as everywhere else we work: prices start at £195 a month for Lite, £275 for Core and £395 for Complete, with Xero included unless we agree otherwise. Hospitality packages start from £220 and construction from £275. All prices exclude VAT.
How does switching accountants work?
Simply. Once you've decided to move, we request professional clearance from your current accountant, gather the records and HMRC authorisations, and move your bookkeeping into Xero if it isn't there already. You don't need to chase anyone, and nothing falls between the two firms.
Ready to talk to a Southampton accountant who actually listens?
Book a free 30-minute call by video. We'll go through your Southampton business, what's working and what isn't, and you'll have a fixed fee in writing within 24 hours.
Book your free call →Send us a message
Prefer to write first? Send a note and Chris will reply within one business day. Southampton clients usually meet by video, with Winchester an easy train ride when a face-to-face meeting helps.
Winchester, SO23 9LH
We work with most clients remotely, via Xero, email and video calls — or meet in the city centre, at Ocean Village or out at Totton when in person helps.
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