Verified AccountantsUK firms, verified against the public record
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Carbon Accountancy Limited

Accountant in London EC1A

Trust Score65/100Good

Companies House: 0505866780-83 Long Lane, London, EC1A 9ETData updated 07 Jul 2026

In the local market

Carbon Accountancy Limited is one of 4856 accountancy practices we verify in London. Incorporated in 2004, it is among the longest-established of them. It advertises a wider range of services than most firms we list in London.

Verified Accountants assessment

Carbon Accountancy Limited is a UK limited company based in London, incorporated in 2004 and trading for 22 years.

Public records confirm it is up to date with its accounts (last filed 31 Jul 2025) and running a confirmed website. Its most recent filed accounts, for the year to 31 Jul 2025, report net assets of £618,910, down from £625,716 the year before. Its website shows it handles Small business, Self Assessment, Payroll, and Bookkeeping and works with Xero.

How we verify →

Verification record and Trust Score

65/100

Trust Score

Good
Public record
AML supervisedpending
Active company
Filing compliant
Trading 22 years
Professional qualification
  • ICAEW
  • ACCA
  • AAT
Contact
Website
Phone
Email

The Trust Score is the share of the applicable public signals we have verified, scored out of 100 - fully deterministic, never subjective. How it is scored, and every signal's points →

Companies HouseActiveno. 05058667 (opens in new tab)incorporated 2004Companies House · checked 07 Jul
Registered activity
  • SIC 69201 - Accounting and auditing
The business activity the firm registered with Companies House (its Standard Industrial Classification).Companies House · checked 07 Jul
Filing complianceAccounts and confirmation statement filed on timelast accounts 31 Jul 2025 (opens in new tab)Companies House · checked 07 Jul
Statutory auditRegistered statutory auditorChartered Accountants Ireland · reg 3025732 (opens in new tab)Authorised to conduct statutory audits (the legally required independent audit of company accounts) under a Recognised Supervisory Body. Only firms on the official UK Audit Register may sign a statutory audit.audit-register · checked 28 Jul
Sources: Companies House (opens in new tab), audit-register
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Good fit for

  • Works in Xero
  • Handles Small business, Self Assessment, Payroll and Bookkeeping
  • Businesses that need a statutory audit

Specialisms and services

Certified
Xero Gold Partner - since 2017
Services
AccountantSmall businessSelf AssessmentPayrollBookkeepingLimited company accountsAuditR&D Tax Credits

Message this firm

Send an enquiry and we will pass it to Carbon Accountancy Limited. No account needed - just your contact details and what you need help with.

We share your message with this firm to answer your enquiry.

People at Carbon Accountancy Limited

Persons with significant control (1)

  • Mr John LeydenOwns 75-100% of shares, 75-100% of voting rights, Can appoint or remove directors

Source: Companies House register (opens in new tab).

Related companies

Companies sharing an active director with Carbon Accountancy Limited on the Companies House register.

Shared directorships from the Companies House register. A shared director can mean a family or group structure; it does not by itself indicate anything adverse.

Financials (as filed)

Companies House filing history (opens in new tab) | 2018 to 2025
Net assets
£619k
as at 31 Jul 2025-£6.8k vs 2024
Current assets
£1.0m
as at 31 Jul 2025+£134k vs 2024
Cash at bank
£69k
as at 31 Jul 2025-£42k vs 2024
Average employees
23
as at 31 Jul 2025+1 vs 2024
Current assets (cash, debtors, other) and net assets by year, in £. Latest year first.
20252024202320222021202020192018
CashDebtorsOtherNet assets
Full figures
As filed31 Jul 202531 Jul 202431 Jul 202331 Jul 202231 Jul 202131 Jul 202031 Jul 201931 Jul 2018
Average employees2322242418181717
Net assets£618,910£625,716£531,597£502,420£512,973£457,063£388,438£332,362
Cash at bank£68,937£110,959£56,824£241,179£133,039£351,984£99,144£299,321
Current assets£1,035,386£901,807£914,545£825,695£694,387£864,433£1,066,319£700,386
Fixed assets£47,307£96,401£141,035£195,213£200,889£19,053
Debtors£384,449£833,175£267,065
Shareholders equity£531,597£502,420£512,973

Figures as reported in this firm's accounts filed at Companies House. Net assets is total assets less what the company owes; a figure below zero means recorded liabilities exceed assets. Small companies may file abbreviated accounts that omit turnover and profit. Public record, reproduced as facts.

Timeline

  1. 2004Company incorporated
  2. 2025Latest accounts filed
  3. 2026Verified on this directory

Frequently asked questions

What services does Carbon Accountancy Limited offer?

Based on its own website, Carbon Accountancy Limited offers Small business, Self Assessment, Payroll, Bookkeeping, Limited company accounts, and Audit. Confirm current services and availability with the firm before engaging. Message this firm →

What accounting software does Carbon Accountancy Limited use?

Carbon Accountancy Limited is Xero (Gold partner), so it works with Xero. Certified partners are trained on the software and listed in the vendor's own advisor directory.

How long has Carbon Accountancy Limited been established?

Carbon Accountancy Limited was incorporated at Companies House in 2004, so it has been on the register for about 22 years. A longer trading history is one sign of an established, accountable firm, though a newer firm is not necessarily less capable.

Does Carbon Accountancy Limited file its accounts on time?

Yes. According to Companies House, Carbon Accountancy Limited's most recent statutory accounts were filed by their due date. On-time filing is a basic sign that a company is being administered properly.

How do you verify Carbon Accountancy Limited?

We build this record only from public, authoritative sources - for this firm, Companies House and audit-register, and stamp every claim with its source and the date we last checked it. We show only what we can verify and say so plainly when we cannot. How we verify →

How is the Trust Score calculated?

The Trust Score is fully deterministic: fixed points for public, verified signals - an active company, anti-money-laundering supervision, filing compliance, a confirmed website and trading history. Carbon Accountancy Limited scores 65/100. Nothing in the score is subjective, and every rule is listed on this page. How we verify →

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