Clockwork Accounting & Proactive Tax
We keep your finances organised without the headaches, helping you account for every penny spent, save tax and stay HRMC compliant.
If you're looking to the future to restructure your shareholdings, raise capital, or incentivise your people, Mushroombiz gives you the integrated advice to propel your plans.
Need a quick answer?
Call us on 0345 862 4123
Reliable Numbers & Strategic Advice
Accounting plans from £29 per month.
We have online accounting plans that get your business going. We cover your statutory accounts, corporation tax, VAT, payroll and bookkeeping, allowing you to focus on your growth.
Helping your business navigate complexity.
As your business and commercial situations change, we adapt to help you build your best business.
We help you get tax credits for innovation, raise capital, structure your shares and incentivise your employees or help you get an idea what your company is worth.

Experience embedded into our service.
Mushroombiz’ accounting & tax service builds on 10+ years’ experience in highly-regulated industries. With a focus on automation and efficiency, we use the latest tools and technology to give you the ultimate accounting solution that is streamlined, information rich, compliant, and as ambitious as you are.
We do:
- Statutory Accounts
- Tax Returns (Corporation Tax, Self Assessments, VAT Returns, PAYE etc.)
- Bookkeeping
- Payroll & Pensions Administration
- Tax Advice
- Corporate Finance
Building your best business with our Accountants

We help businesses get the most out of their finances, pay the tax they owe and plan for the future:
Your Needs | Accountancy | Tax | Accounting |
---|---|---|---|
Keeping my accounts in order | Statutory Accounts and Companies House Compliance | Corporation Tax returns, VAT returns, Employment Taxes | Bookkeeping & Payroll |
Raising capital | Valuations, Financial Modelling, Corporate Finance | Advice on Investment Schemes (EIS, SEIS, VCT, SIPPs) | |
Incentivising Employees | Corporate Finance | Advice on Employment Securities Schemes (EMI, SAYE, CSOP and SIP etc.) & ITEPA Compliance | Payroll |
Innovating | R&D Tax Credit Claims |
Keep more of your hard earned success.

At Mushroombiz, we like to look after our entrepreneurs. When you're starting out, the first Director's Self Assessment is included in many of our plans.
You work extremely hard for your earnings and in return you expect to make them go as far as possible.
Whether we need to get your dividend-salary mix right, avoid the "death zone", up your pension contributions, or plan your exit, Mushroombiz gives you peace of mind at home, while you focus on your business.
At Mushroombiz, we also partner with a number of specialist Private Client providers in Financial Planning, Investment Advice, Estate Planning, Mortgage Brokerages and International Tax.
If you'd like to know more, book a confidential consultation with one of our Accountants.
Specialist Support
Where our plans do not meet normal criteria, we tailor our service to specific investment activities, industries and side-hustles so that our service and your operations are as lean as possible.
Property
Property Accounting is not always simple and getting tax right on income and gains deriving from property is vital.
We help clients structure their property holdings in companies, or make sure your personally held rentals are properly accounted for.
E-Commerce
Whether you are drop shipping, selling private label, doing Amazon FBA or selling crafts on Etsy, Mushroombiz helps e-commerce sellers get the most out of their numbers.
We integrate with systems like Shopify, A2X (for Amazon) as well as industry specific systems to ensure revenue, shipping and tax is accounted for in every sale and you get rich information in your accounts.
Cryptoassets
The tax treatment on Crypto, NFTs and other activities in the Blockchain space is moving constantly on the frontier of global tax laws. We dive deep into the cryptoasset manual to ensure every transaction and activity is treated correctly.
We use the best crypto tax technologies to aggregate your exchanges, wallets, mining pools and private sale activity to track all of your gains and losses.
Crypto tax services are subject to enhanced due diligence and we will require more information than normal if you decide to use this service.
Choose your starter Accounting Plan:
Sole Trader
/ Month + VAT
- Free Expert Advice
- Xero Bookkeeping Software
- Self Assessment Tax Returnⓘ
We'll prepare and file your self-assesment tax return on your behalf. All we need from you is details of your income sources and we'll do the rest.
- Annual Confirmation Statement
- Annual Accounts & Preparation Filing
- Income Summary for Self Assesment
- Corporation Tax Return
- VAT Returns
- Payroll
- Monthly Bookkeeping
Limited Company Basics
/ Month + VAT
- Free Expert Advice
- Xero Bookkeeping Software
- Self Assesment Tax Returnⓘ
We'll prepare and file your self-assesment tax return on your behalf. All we need from you is details of your income sources and we'll do the rest.
- Annual Confirmation Statement
- Annual Accounts & Preparation Filingⓘ
We'll prepare your company accounts and file them with Companies House
- Corporation Tax Returnⓘ
We'll prepare your tax computations and Corporation Tax return and submit them to HMRC
- Registered Office Address
- VAT Returns
- Payroll
- Monthly Bookkeeping
Small Business
/ Month + VAT
- Free Expert Advice
- Xero Bookkeeping Software
- Self Assesment Tax Return
- Annual Confirmation Statement
- Annual Accounts & Preparation Filing
- Corporation Tax Returns
- Registered Office Address
- Monthly Bookkeepingⓘ
Staying on top of your accounts throughout the year helps you keep your finger on the pulse with your finances and makes year-ends a doddle.
Add 3 hours/month bookkeeping for £82.50 + VAT and we’ll help keep your records in tip-top shape. - VAT Returns
- Payroll (up to 3 staff)
Growth
/ Month + VAT
- Free Expert Advice
- Xero Bookkeeping Software
- Self Assesment Tax Returnⓘ
We'll prepare and file your self-assesment tax return on your behalf. All we need from you is details of your income sources and we'll do the rest.
- Annual Confirmation Statement
- Annual Accounts & Preparation Filing
- Corporation Tax Returns
- Registered Office Address
- Monthly Bookkeepingⓘ
Staying on top of your accounts throughout the year helps you keep your finger on the pulse with your finances and makes year-ends a doddle.
Add 4 hours/month bookkeeping for £110 + VAT and we’ll help keep your records in tip-top shape. - VAT Returns
- Payroll (up to 10 staff)