Family-run · Sidcup, Kent · Est. 1985
Accountants you can actually talk to.
Family-run since 1985. Trusted by individuals, businesses and organisations across the UK and internationally.
Who we help
- Sole traders
- Limited companies
- Landlords
- Directors
- Contractors
- International clients
- People facing HMRC enquiries
About MKS
Over 40 years of honest accountancy.
MKS Accountants is a family-run firm based in Sidcup, with a history stretching back to 1985. Founded by Mehmet Kemal, FFA, FTA, the firm was built on a straightforward principle: give clients the kind of clear, honest advice that actually helps.
Today the firm is led by Selin Osman, Mehmet's daughter and a Fellow of the Association of Chartered Certified Accountants (FCCA), who trained under his guidance and continues that same approach. Over 18 years of experience, a genuine understanding of what clients need, and a commitment to being approachable and direct — that is what MKS Accountants offers.
We work with sole traders, company directors, landlords, small businesses and larger organisations. Whether you need help with day-to-day bookkeeping or navigating a complex tax matter, you'll deal with experienced people who take the time to understand your situation.
Director
Meet Selin Osman, FCCA, Director
Selin is a Fellow of the Association of Chartered Certified Accountants with over 18 years of experience across accountancy, tax and business advisory work. She trained under the firm's founder, Mehmet Kemal, and took over leadership of MKS Accountants to carry forward the values the firm was built on.
“Every client deserves an accountant who actually knows their name and their numbers. That is the whole reason this firm exists — and it always will be.”
What we do
Eight services. One firm.
Bookkeeping
Day-to-day records, kept clean.
Read more 02Taxation
VAT, Corporation, Capital Gains, Inheritance & Self-Assessment — one team.
Read more 03Year-End Accounts
For sole traders, partnerships and limited companies.
Read more 04Payroll & Pensions
PAYE, RTI and auto-enrolment.
Read more 05Construction Industry Scheme
CIS verification, deductions and monthly returns.
Read more 06Business Plans
Start-ups, growth and funding applications.
Read more 07Tax Investigations
HMRC enquiries, compliance checks, resolved.
Read more 08International Clients
Cross-border tax and overseas business, handled with care.
Read moreWhy MKS
Why choose MKS.
Finance can be complex — with MKS beside you, it doesn't have to feel that way.
40 years of experience
We have been supporting clients since 1985. That depth of experience means we have seen most situations before and know how to deal with them effectively.
Personal service
You will always deal with someone who knows your file. No call centres, no passing you around — just straightforward, attentive service from an experienced team.
Tailored advice
Every client is different. We take the time to understand your circumstances and give you advice that is specific to your situation, not a generic template.
Full range of services
From bookkeeping and payroll to tax investigations and business plans, we cover the full range of accountancy and tax services under one roof.
I have been with MKS for years. Selin and the team always take the time to explain things clearly and I never feel like just another number. Genuinely the most approachable accountants I have dealt with.
Ready when you are