Sleek and Mazuma Money both offer online accounting for UK businesses, but differ significantly in pricing transparency, service scope, and support model.
Sleek provides fixed, all-inclusive packages with a dedicated accountant, company formation, and specialist services, while Mazuma uses a modular, add-on pricing approach.
Sleek is better suited to growing and complex businesses, whereas Mazuma Money may suit sole traders with simpler accounting needs.
When it comes to choosing accounting services, there’s no shortage of options. For businesses weighing Sleek vs Mazuma Money, making the right decision is crucial.
Both Sleek and Mazuma Money provide accounting services designed for small business owners seeking compliance without administrative overload.
However, their approaches differ significantly, from pricing models to how they deliver support.
We’ve conducted a detailed, side-by-side comparison to offer a clear and jargon-free look at what each platform provides, highlighting what sets them apart, and which one is best for you, so you can compare Sleek and Mazuma Money with confidence.
Sleek Accounting vs Mazuma Money: Side by side comparison
To make it easy for those short on time, here’s a detailed breakdown of what you get with each platform in table form. Keep reading for a more in-depth look at each platform.
| Feature/Service | Sleek | Mazuma Money |
| Online Accounting | Starting from £60/m* | Starting from £38 + VAT* |
| Dedicated Accountant | Starting from £60/m* | Starting from £38 + VAT* |
| E-Commerce Accounting | Starting from £60/m* | ⨯ |
| Bookkeeping Services | Starting from £60/m* | ✓ |
| Tax Filing | Starting from £60/m* | Starting from £200 |
| Payroll Services | Starting from £80/m* | Price on Application (POA) |
| Company Incorporation | FREE + Includes a 50% discount for Accountancy services | ⨯ |
| Pricing Model | Annual/monthly | Monthly with notice period* |
| Google Review Score | 4.8 | 3.8 |
| R&D Development Tax Credits | ✓ | ✓ |
| Crypto Accounting | Starting from £60/m* | ⨯ |
| SEIS/EIS advance assurance & compliance application | Starting from £250 + VAT* | ⨯ |
*All prices shown refer to the lowest available rates listed on each provider’s website at the time of writing, unless stated otherwise. Sleek’s 50% discount for company incorporation has been excluded from comparison in the interest of fairness—learn more here. Information about each competitor was gathered from publicly available sources on their website and quotation forms. We can’t guarantee accuracy if services or pricing have changed since publication.
Who is Sleek?
Sleek is a modern accounting and compliance provider that has supported international businesses since 2017.
Founded by entrepreneurs, our platform offers a digital-first way to manage company admin, from incorporation to tax filing. Some of our core services include:
- Company formation and corporate secretarial support
- Accounting and bookkeeping
- Payroll and compliance management
- Audit preparation and tax filing
By combining tech-first thinking with expert support, Sleek helps business owners handle routine financial admin more efficiently than ever. That means less time on paperwork and more time to focus on growth.
Sleek is a B-Corp certified company
Sleek is a B-Corp certified company, part of a global movement using business as a force for good. We’ve supported over 450,000 businesses across 110 countries, with 14,000+ active customers and sport 4.9 stars on Google. (Woohoo!)
Where we operate:
- Singapore (HQ)
- Hong Kong
- United Kingdom
- Australia
Who is Mazuma Money?
Mazuma Money is a UK-based accounting provider that’s been supporting small businesses and sole traders since 2006. Known for introducing the UK’s first subscription-based accounting service, Mazuma offers a fixed-fee model aimed at making business admin more predictable and accessible.
The company combines postal and digital document submission with its own app and online platform. It focuses on monthly accounting support tailored to smaller businesses.
Sleek vs Mazuma Money: Features, pricing, support and more compared
Sleek vs Mazuma accountants: pricing comparison
Sleek offers a clear and fixed price starting at £60/month*, billed annually which covers online accounting, bookkeeping, tax filing, and a dedicated accountant. There’s no fluff, no mystery pricing, and no paywalls to talk to your accountant. It’s structured from the get-go to give you everything you need.
We’ve got two transparent packages—Accounting Basic and Accounting Pro—designed around your revenue and business needs. Our accounting services packages are designed to be easy to understand, easy to scale, and you know exactly what you’re paying for.
Mazuma Money starts at £38 + VAT per month. It might look cheaper at first glance, but a closer look tells a different story. For example, you don’t get a dedicated accountant until you reach their top-tier service, which starts at £60/month.
And even then, access to the most experienced accountants is done via a tiering system. Expect to pay premium prices for a Lead Accountant with a few years’ experience.
On top of that, you’re limited in how often you can call or email unless you pay more. Then come the optional add-ons, including:
- VAT Returns with MTD (+£20/month)
- Freepost for sending paperwork (+£20/month)
- Payroll services (+£15/month)
- Up to 500 transactions per month (+£40/month)
- Business advice reports (+£20/month)
- Oversight from a senior accountant (+£50/month)
As a sole trader, it’s easy to hit £210+ per month once everything is factored in. And for limited companies, the starting price is £98/month, regardless of how small your business is.
If you want a fully modular setup with a lot of customisation over individual services you may or may not need, Mazuma Money might be the wise choice.
If you prefer a simpler, hassle-free fixed pricing model with everything baked in at no added cost, Sleek is definitely the way forward.
Mazuma vs Sleek: company incorporation
If you’re setting up a new limited company, it’s worth noting a key difference between the two providers. Sleek offers company incorporation as part of its service, while Mazuma Money focuses solely on accounting and tax support for businesses that are already up and running.
Sleek’s incorporation service is fully online, with three flexible plans depending on the level of support you need:
- Starter (Free + £50 Companies House fee): Covers essentials like company formation and legal documents
- Business Ready (£49.99 + VAT): Adds support with VAT registration, a dedicated account manager, and registered office services
- Peace of Mind (£99.99 + VAT): Includes PAYE registration, full secretarial service, and your first confirmation statement
It’s a straightforward way to get started, and there’s the added benefit of 50% off Sleek’s accounting packages if you incorporate through the platform.
Mazuma Money doesn’t currently provide incorporation services. So if you haven’t registered your business yet, you may need to use a separate provider before signing up with them.
Why Sleek has more support for specialist & scaling businesses
Fast-moving SMEs often need support beyond the usual bookkeeping and filings. That’s why Sleek also offers SEIS/EIS advance assurance and compliance, support for R&D tax credit claims, and more. These specialist services are built-in and managed in-house, so you don’t have to bounce between providers.
Mazuma Money, from what we could find, doesn’t appear to offer these services. That might not matter for every business, but it’s worth noting if you’re in tech, raising funds, or building something ambitious.
Sleek online accountants vs Mazuma Money: accounting services & essentials
Now for the nitty gritty. Business particulars such as bookkeeping and reporting are incredibly important when choosing a provider, and both Sleek and Mazuma Money have separate approaches.
Let’s break them down for you.
| Accounting feature | Sleek | Mazuma Money |
| Bookkeeping services | Sleek provides flexible bookkeeping tailored to your business size and reporting needs. Services include invoice preparation, account reconciliation, and unaudited financial statements, with options for weekly, monthly, or annual support. | Monthly bookkeeping included with all plans. Clients send documents each month, and Mazuma handles reconciliations, VAT, payroll, and basic reporting. |
| Audit and tax filing | Our team supports full audit and tax filing, including management accounts, tax computations, and statutory submissions. For businesses with overseas operations, we also offer guidance on offshore tax exemption filing where applicable. | Includes Self-Assessment and company tax returns as part of monthly plans. Mazuma handles submissions to HMRC and supports general tax compliance. |
| Dedicated accountant | Every client is matched with a dedicated accountant who knows your business and can offer ongoing, personalised advice. | Organised via a tiering system on price. Dedicated accountant is £60/m+, Meaning you’ll pay extra for more experienced accountants. |
| Flexible document submission | Send your expenses and invoices through WhatsApp, email, or directly via the Sleek platform. It’s quick, secure, and designed around how you work. | Clients can upload documents via the online platform or app, or send paperwork by post using Mazuma’s Purple Envelope system. |
| Bank integrations | We support direct feeds from selected UK banks including HSBC and Airwallex. This makes it easier to keep your records accurate and up to date. | Connects via Open Banking to sync transactions through MazApp. Also integrates with Crezco for payments and Swoop for funding insights. |
| Accountant calls on demand | You can schedule a call with your accountant whenever needed. Support is available year-round with no hidden limits. | Clients get direct contact details for their accountant. Calls are by request, and if the accountant is unavailable, they will schedule a callback at a suitable time. |
| Guided onboarding | All new clients are invited to a live onboarding session that walks you through the platform, setup, and how to get the most value from your plan. | No details on onboarding provided. |
| Dividend declaration support | If you need to declare dividends, Sleek can help. Monthly bookkeeping plans can include one-off dividend declaration support. | No specific dividend declaration service is mentioned on Mazuma Money’s site. |
| Expense and transaction tracking | Our accounting packages support full tracking of both expenses and transactions to give you a more complete view of your business finances. | Mazuma’s MazApp allows clients to photograph or upload receipts and invoices, forward email attachments, or use Open Banking to sync transactions, making it easier to stay on top of your records. |
| Tailored accounting solutions | If your business handles high volumes of expenses or complex transactions, we can customise your accounting setup accordingly. | Mazuma provides accounting support through subscription plans that include VAT, payroll, and tax management. While customisation isn’t highlighted, their services cater more to the needs of small businesses and sole traders. |
| Compliance built in | Compliance is part of the process, not an add-on. We help you stay on top of key requirements, with reminders and guidance built into the platform. | While Mazuma emphasises support with VAT, payroll, and tax services, their website does not explicitly detail automated compliance reminders or embedded compliance features. Compliance appears integrated into the broader service rather than highlighted as a separate automation feature. |
| Local presence | UK-based team offering local accounting, tax, and compliance support, with services tailored to UK-registered businesses. | Founded and based in the UK, with deep experience supporting sole traders and small businesses across the UK market. |
Sleek vs Mazuma: company secretarial services
If you’re running a limited company, staying on top of your legal responsibilities isn’t optional. It’s part of keeping your business compliant.
Sleek includes a range of company secretarial services that make it easier to manage your statutory obligations, from confirmation statements to director changes. These services are available as part of our incorporation support. You can learn more about what’s included by visiting our company formation services page.
| Company secretary feature | Sleek | Mazuma Money |
| Core company secretarial services | Sleek provides core company secretary support to help directors meet their legal obligations without the admin stress. | No publicly available information about these services. |
| Statutory records maintained | We update and manage your statutory registers, including shareholders, directors, and persons of significant control. | Not offered. |
| Changes to directors | Whether you need to appoint a new director or update existing details, we manage the process and submit the paperwork on your behalf. | Not listed on the website. |
| Dormancy declarations | If your business is not trading, we’ll guide you through the process of declaring your company dormant. | Not offered. |
| Company updates and changes | We assist with changes to your business name, structure, or nature of trade, ensuring all updates are correctly filed. | No information on the website. |
| Clear and upfront pricing | All company secretarial services and optional add-ons are listed transparently in the platform. No surprises. | No pricing on the website for company secretarial services. |
| Registered office and service address | Need to update your registered address? We take care of the changes so your records stay compliant. | Not offered on the site. |
| Dividends and share updates | From issuing dividends to transferring or allotting shares, Sleek manages the admin so you don’t have to. | No information available. |
Mazuma integrations vs Sleek integrations
Sleek and Mazuma take very different approaches to integrations, depending on the type of business you run and how much flexibility you need.
Sleek integrations:
- Uses Xero, trusted by over 3 million businesses worldwide
- Easily connects with popular e-commerce platforms like Shopify, Stripe, PayPal, and others
- Compatible with HMRC’s Making Tax Digital requirements
- Ideal for growing businesses and e-commerce setups needing automation and real-time reporting
Mazuma integrations:
- Uses a proprietary system called MazApp, with basic tools for invoicing, reconciliation, and document uploads
- Suitable for sole traders or small businesses with straightforward needs
- Limited third-party integrations, which may be restrictive for businesses needing advanced workflows
- Custom solutions are possible, but may involve slower or more manual workarounds
Sleek vs Mazuma Money: onboarding and switching accountants
Switching accountants can feel like a headache, but it doesn’t have to be. Whether you’re just getting started or moving from another provider, here’s how Sleek and Mazuma Money compare on onboarding and setup:
Sleek onboarding:
- Free company formation, plus 50% off accounting packages when you incorporate with us
- Fully digital onboarding process with 24/7 support via email, phone, and chat
- We manage the full handover from your previous accountant, with minimal input needed from you
- MTD-compliant from day one, no extra setup required
- Built for speed and simplicity — onboarding takes just a few steps
Mazuma Money onboarding:
- Offers onboarding through their online portal or by post using the Purple Envelope, if preferred
- Good fit for sole traders or businesses comfortable with a slower, more manual setup
- Customer reviews say the process is generally smooth, though timelines and responsiveness may vary
- Not built around automation or real-time syncing, which may affect setup time for more complex businesses
If you’re looking to switch accountants without the admin stress, Sleek makes it straightforward and cloud-ready from day one.
Sleek vs Mazuma: certifications and awards
Awards and certifications aren’t everything, but they can offer a useful glimpse into how a company is viewed by the industry. Here’s how Sleek and Mazuma Money stack up when it comes to recognition for innovation, growth, and impact.
| Type | Sleek | Mazuma Money |
| Awards | Recognised in fintech and startup lists including:
| Multiple UK accounting industry awards, including:
Co-founder recognised for leadership and contributions to the profession |
| Certifications | Certified B Corporation, meeting high standards of social and environmental performance since (2023). | No formal certifications listed. |
Mazuma Money vs Sleek UK: customer reviews
Online reviews give a useful snapshot of customer satisfaction, especially when it comes to support and reliability. Here’s how Sleek and Mazuma Money compare across Google and Trustpilot:
| Platform | Sleek | Mazuma Money |
| 4.9 / 5 – praised for clarity, speed, and proactive support | 3.8 / 5 – Mixed feedback on service consistency | |
| Trustpilot | Great – Sleek’s Trustpilot highlights include helpful support and simple, swift onboarding | Great – Mazuma Money’s Trustpilot reviews mention ease of use and friendly team |
When comparing providers, it’s worth checking recent reviews to see how each service measures up in areas that matter most to your business.
Sleek vs Mazuma: Which provider is right for you?
Both Sleek and Mazuma Money offer useful tools for UK business owners, especially if you’re looking to outsource your accounting and stay compliant without the hassle.
If you’re after flexibility, clear pricing, and built-in support for company formation and compliance, Sleek could be a strong fit. For sole traders or smaller setups with simpler needs, Mazuma may be worth considering.
Looking at your options for Mazuma Money alternatives? Or weighing up the best online accountants the UK has to offer in 2025? Take a closer look at what your business really needs, and choose the service that saves you time and keeps you moving forward.
Thousands of UK businesses have already made the switch to Sleek.
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Disclaimer: The preceding information is not legal advice. This content is aimed to provide general guidance. For more formal or legal advice, contact Sleek directly.
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FAQs on Sleek vs Mazuma Money
Is it hard to switch from another accountant to Sleek?
Not in the slightest. We’ll handle the transition, work with your previous provider if needed, and ensure your deadlines stay on track without any stress.
Can I register a company with Sleek if I haven’t started trading yet?
Yes, you can set up your limited company with us before you start trading. Our free Starter package includes all the legal documents and Companies House registration.
Absolutely. You can move your existing company over to Sleek any time. And if you’re just starting out, we’ll help you form your company for free with no strings attached!
What if I need more specialist support later?
We’ve got you covered. From R&D tax credits to SEIS/EIS and crypto compliance, our services are tailored for modern UK businesses that want to grow without red tape.
Is Sleek suitable for e-commerce businesses?
Yep! We integrate with Shopify, Stripe, PayPal, and other tools via Xero. Our e-commerce accountancy services are seamless, secure, and fully MTD-compliant.
How much does it cost to get started with Sleek?
Our accounting plans start at £60/month, and company formation is free (you’ll just pay the £50 Companies House fee). We keep it all upfront with no hidden extras.
