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Incorporation

Start your company

Formation Packages

Company Formation for UK residents

Your foundation to run and grow with ease.

Essential Formation Package

Register your company with address privacy.

Business Compliance Package

Start up with Accounting, Tax and Privacy built in.

Full Compliance Package

Incorporate with end to end admin managed.

Related Guides

How to Register a Company in the UK: Step-by-Step Guide

The Ultimate Startup Business Plan Template

Accounting

Run & Grow your business

Who We Help

Accounting

Full-service accounting for accurate and compliant financials.

Self Assessment Tax Returns

Compliant and Efficient UK Self Assessment.

Bookkeeping

Expert Bookkeeping and Monthly Reports.

Limited Company

Dedicated Accountant for LTD companies.

Sole Trader

Expert accounting, bookkeeping and filing.

Contractor

Specialist Support with IR35 Expertise.

Startup

Scale smarter with a dedicated startup accountant.

Related Guides

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Advisory Services

Stay compliant

Specialist advice for key business and tax decisions.

Research and Development

R&D Tax Credits Service.

SEIS/EIS Advance Assurance

Expert advance assurance application.

Related Guides

SEIS vs EIS: Key Differences and How Each Scheme Works

How to Use SEIS to Raise Money for Your Startup

Pricing

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Run & Grow your Business

Company formation prices

Flexible plans from setup to growth.

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Pricing that scales with your business needs.

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Knowledge base

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FAQs

Find answers to our most popular questions.

Community

Join a community of entrepreneurs and business builders.

Related Guides

Full Guide to UK Business Compliance Penalties

How to Claim Tax Relief in the UK: A Clear Guide for Individuals & Small Businesses

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205 Regent St., London W1B 3HH, United Kingdom

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Trusted by over 450,000 businesses worldwide

Ricky Hill

Co-Founder , SYNCR

“They always submit our filings in on time, and their tax advice is spot on. Seriously, they’ve made things so much easier for us. I’d totally recommend Sleek to anyone looking for awesome accounting help!”

Neil Smedley

Founder, King Koby Ltd

“I truly wouldn’t be able to run my business without Sleek. Whilst I’m great at marketing and the sales side of running a business, I’m just not a numbers guy! Sleek has changed the way I look at an accountant.”

Sam Ducker

Founder, Vibe Engineer

“Highly recommend the guys at Accounts Lab, particularly if you need EIS or SEIS support. The team are knowledgeable, professional and friendly, making them a great accountant for startups.”

Seb Francis

Co-Founder & Director, Titus Learning Ltd

“We’ve been with Sleek since the very beginning of our business. They helped with Seed EIS, R&D and implementing an online cloud bookkeeping system through Xero. Sleek has undoubtedly helped us grow our business.”

Sarah Quinn

Director, Dead Cat Audio Ltd

“I’ve been with Sleek for years and as they have expanded their team their attention to providing a good service has continued. Bryony is brilliant with my accounts; great communication and always there to help. I would definitely recommend their service.”

Victoria Haynes

CEO & Founder, Neon Hop

“I met Ed from Sleek when he was visiting our coworking space in London. After a quick chat, Ed explained how I could move my accounts online and also discussed R&D tax credits. His advice has been invaluable!”