Certified AAT accountants · Basildon, Essex

Your business, sorted.

Friendly, straight-talking accountants for sole traders, limited companies, contractors and landlords across Essex. We take the numbers off your hands so you can get back to running your business.

5.0 from 36 verified Google reviews

A Blenheim accountant reviewing a client's figures with a calculator and paperwork at a desk
5.0 Google rating from real client reviews
36 Verified Google reviews, all five star
12+ Services for growing businesses, under one roof
2020 Serving Essex businesses since

What we do

Everything your business numbers need, under one roof

No hand-offs, no jargon, no one-size-fits-all. Just a local team who know your business and keep the boring stuff properly boring.

Bookkeeping

Your books kept tidy month in, month out. Accurate records that give you a clear picture of your money whenever you need it.

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Corporation Tax

Corporation tax sorted on time, every time, with every allowance your company is entitled to claimed.

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Self Assessment

Personal tax returns done properly, so you never overpay and never miss a deadline. That includes contractors and landlords.

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VAT Returns

VAT submitted on time, with the right claims made and nothing missed. Making Tax Digital handled for you.

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CIS Returns

Construction industry returns handled from start to finish, from verification to submission, so your cash keeps flowing.

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Payroll

Wages paid right, every time. Payroll, RTI and auto-enrolment pensions taken care of with no month-end stress.

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Capital Gains Tax

Thinking of selling property or shares? We work out what you owe before you commit, so there are no surprises.

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Company Accounts

Statutory accounts filed to Companies House and HMRC, prepared by people who actually answer the phone.

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Partnership Returns

Partnership accounting that keeps every partner's position clear and the tax split fair.

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Cryptocurrency

Crypto gains reported correctly. The rules are fiddly, so we make sure your returns stand up to scrutiny.

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Machine Game Duty

Gaming duty handled properly for licensed premises, so HMRC stays off your back and you stay on the right side of the rules.

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Tax Investigations

If HMRC comes knocking, we handle the enquiry for you from start to finish and keep the worry to ourselves.

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Not sure what you need? Call 07436 558 449 and we will point you in the right direction.

Why Blenheim

People you can actually talk to

Since 2020 we have grown the old-fashioned way, by looking after Essex businesses properly. When you call, you get a real person who knows your file. When you ask a question, you get an answer you can act on.

No call centres. No handing you off to a junior. No mystery fees at the end of the year.

  • A direct line to your accountant, not a call centre
  • Plain English answers, with no jargon and no mystery fees
  • Proactive advice throughout the year, not just at tax time
Talk to a real person
A Blenheim advisor talking through figures with a client at a table
"Aidan is polite and easy to talk to. He takes the time to explain everything in a way you can understand."
Ryan Gooch, Google review

Meet the team

The people who answer the phone

You deal with the same faces every time you call. Small team, big care, no hand-offs.

Portrait of Aidan Fenn, founder and certified AAT accountant

Aidan Fenn

Founder & Certified AAT Accountant
Portrait of Oliver, trainee AAT accountant

Oliver

Trainee AAT Accountant
Portrait of Abigail, bookkeeper

Abigail

Bookkeeper
Portrait of Demi, administration assistant

Demi

Administration Assistant

What clients say

Real words from real Essex businesses

We do not write our own reviews. These come from our Google listing, in our clients' own words.

"Aiden took over my accounts after a previous accountant completely ruined my file. He went through absolutely everything, getting everything in order and untangling a huge mess. Not only did he correct several years worth of mess, he also restored my faith in my accountant. Thanks Aidan and team."

Ryan Gooch Google review

"Aiden was very efficient, friendly and helpful in sorting out my capital gains tax return. I would not hesitate to use his services again in the future if needed. Highly recommend."

Sarah Fall Google review

"Spoke over the phone and the accountant was friendly and gave advice quickly on the next steps and saved me a lot of money. Did not charge for advice over the phone. Would highly recommend and will go to him for future accounts!"

Thivakar Srikandakumar Google review

"Aiden and the team have been a great support function over the years and we are incredibly grateful for all the support and guidance they offer, as standard. Five stars all the way!"

AVISAN Business Support Google review

"We have been working with Blenheim Accountants for a few years now. They provide us with a very good service and have great knowledge. Aidan and the team are always available to speak to and are a pleasure to work with."

Chris Cottage Google review

"Aiden is always very helpful and a man of his word. A pleasure to do business with him."

Mohammed Riaz Google review

Rated 5.0 from 36 verified reviews on Google.

A Blenheim advisor going through numbers with a client, both smiling

For the long haul

We are in it for years, not just for tax season

The best compliment we get is the client who stays. We have clients who have been with us for years, who recommend us to their mates down the pub, and who call us when things go wrong before they call anyone else. That is how we measure success.

"Aidan and Gary are really very helpful and always return emails and phone calls very quickly. I have been using Blenheim Accountants for many years, high recommend."
Roberto Sanna, long-term client

Get in touch

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