We're Not Just Accountants. Let Us Handle the Numbers.
Starting a business in London is exciting — but navigating tax,
company structure, compliance and cashflow from day one is
overwhelming. MazeKey gives startups the accountancy
foundation they need to grow with confidence.
60%
20+
£0
50%
- Did you know? Within 5 years, most businesses fail — due to cashflow problems, poor planning, and compliance issues. The right accountant from day one changes everything.
Why Most Startups Struggle
Starting Up Is Exciting.The Admin? Less So.
Start-up businesses are some of the most vulnerable when it comes to longevity. Within 5 years, most won’t survive — due to cashflow difficulties, lack of proper planning, profit erosion, and loss of market share.
But it doesn’t have to be that way. Having the right accountancy support from day one puts you in a far stronger position — freeing you to focus on what you’re actually good at: building your business.
“Having an accountant to guide you through the process of growing your company means you can focus on what matters most — your customers, your product, and your vision.”
At MazeKey, we’ve helped hundreds of startups across London and the UK get the right foundations in place from the very beginning. We don’t just do your numbers — we become your financial co-founder.
Everything a Startup Needs
From Day One
We provide hands-on support at every stage of your startup journey — from the first idea through to your first hire, your first VAT return, and your first year-end accounts.
Fast setup
Tax-efficient from the start
A partner, not just an accountant
Choose the Right Business Structure
Sole trader, partnership or limited company? We assess your situation and help you decide the structure that best protects you legally and minimises your tax liability from the outset.
Prepare a Solid Business Plan
A credible financial plan is essential for funding applications, investors, and keeping you on track. We help you build realistic financial projections and a plan that actually works.
Explore Funding Options
Set Up Accountancy Software
Ensure Full Legal Compliance
Ongoing Accounting Support
Bookkeeping, payroll, quarterly VAT returns, year-end accounts and tax returns — we handle your daily accounting needs so you can stay focused on growth.
A Complete Accounting
Package for Startups
Company Formation & Registration
We handle your Companies House registration, set up your HMRC records, and ensure your new company is correctly structured from the very beginning.
Bookkeeping & Records
We handle your Companies House registration, set up your HMRC records, and ensure your new company is correctly structured from the very beginning.
Tax Planning & Self Assessment
We structure your affairs tax-efficiently from day one — corporation tax, self-assessment, dividend planning and more. Most clients save up to 50% on their tax bill.
VAT Registration & Returns
We advise when and how to register for VAT, choose the right VAT scheme for your business, and handle all quarterly submissions accurately and on time.
Payroll & Auto-Enrolment
As soon as you take on your first employee, we manage payroll, RTI submissions, auto-enrolment pension setup and PAYE compliance every step of the way.
Cashflow Planning & Forecasting
Cashflow is the number-one killer of startups. We build and monitor cashflow forecasts so you can plan ahead, avoid nasty surprises, and make confident decisions.
Management Accounts & Reporting
Regular management reports give you a clear picture of profit, loss and performance — the kind of financial insight that helps you grow strategically.
R&D Tax Credits
If your startup is innovating — in tech, science, engineering or creative fields — you may qualify for R&D tax credits. We identify and claim every penny you’re entitled to.
How We Get You Started
From your very first call to ongoing monthly support, here’s what working with MazeKey looks like.
Free Consultation
Tailored Roadmap
Setup & Registration
We handle your company formation, HMRC registrations, and cloud accounting system setup.