Our accountants work with UK businesses to help you scale smarter, manage cashflow and build systems that grow with you; all from £60/m*.
Switch to Sleek and save 20% on annual accounting, with reliable support and full compliance.
Startup accounting is more than tick-box compliance. It gives you the clarity to manage cash flow, plan smarter, and stay investor-ready from day one.
Get expert advice & smart systems in place from day one
We handle the numbers so you can focus on building your business.
Clean, accurate finances help you raise funding with confidence when the time is right.
Stephen Hendry
Oluwatosin Omotola
Entrepreneur, Founder, Omotola Ajayi Travelts Ltd
Maximilian Cater
Seb Francis
Kira
Victoria Haynes
Build a solid financial foundation with support and tools designed for fast-moving teams.
Connect your sales channels, payment platforms and tools for real-time visibility.
One dedicated expert who understands burn rate, runway and what investors want to see.
Get fast answers from real people who understand early-stage challenges.
Plan ahead with better forecasting, cashflow insights and tailored financial advice.
From pre-seed to Series A, our platform and support flex with your growth.
Tax Manager
United Kingdom
Head of Accounting
United Kingdom
James has over 20 years of accounting experience, specialising in SME advisory and digital transformation. He helps businesses adopt Xero and make accounting faster, clearer and more useful.
Operations Accounting Manager
United Kingdom
With nearly 10 years of experience, Nathan supports startups with year-end accounts and management reporting. He is known for his hands-on approach and clear financial guidance.
We’ll manage the full switch from your old accountant, including HMRC admin, so your startup accounting runs smoothly from day one.
If you need help with a company registration, our startup accountants can help you get started.
From payroll and VAT returns to R&D tax claims and strategic advice, our accounting for startups scales with your business needs.
Switching to Sleek is easy. We’ve got you covered every step of the way with our smooth, hassle-free onboarding process
Accounting gives you a clear view of your finances. It helps you make better business decisions, stay compliant with HMRC, and attract investors with accurate records.
Yes. Our startup accountants handle tax filing, planning and reliefs such as R&D Tax Credits and EMI schemes. We keep your business compliant while helping you save money.
It depends on your needs. Many startups use cloud-based accounting software like Xero or QuickBooks. At Sleek, we use Xero alongside our accountant support so you get software plus expert guidance.
If you run a limited company, you must file annual accounts and a Corporation Tax return with HMRC and Companies House. You also need to keep accurate financial records and register for VAT if you pass the threshold.
Startup accountant fees vary, but with Sleek you can expect clear, fixed pricing starting from £60/m*, billed annually. This covers bookkeeping, tax returns and a dedicated accountant, so there are no hidden surprises.
Choose an accountant who understands startup businesses, offers fixed fees, and uses digital tools. The best accountants for startups go beyond compliance by providing insights, support and scalable services as your business grows.
Sleek was built by entrepreneurs, so we know exactly what challenges you’ll face and how to overcome them. If you’re ready for that support, contact us today.
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