Verified AccountantsUK firms, verified against the public record
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Seatax Limited

Tax adviser in South Yorkshire DN1

Verified & RegulatedTrust Score100/100Excellent

Companies House: 01439837Elgin House, 83 Thorne Rd, Doncaster, DN1 2ESData updated 07 Jul 2026

In the local market

Seatax Limited is one of 15 accountancy practices we verify in South Yorkshire. Incorporated in 1979, it is among the longest-established of them.

Verified Accountants assessment

Seatax Limited is a UK limited company based in South Yorkshire, incorporated in 1979 and trading for 47 years.

Public records confirm it is anti-money-laundering supervised by HMRC, up to date with its accounts (last filed 30 Jun 2025), and running a confirmed website. Its most recent filed accounts, for the year to 30 Jun 2025, report net assets of £3.9m, up from £3.6m the year before. Its website shows it handles Self Assessment.

How we verify →

Verification record and Trust Score

100/100

Trust Score

Excellent
Public record
AML supervised · HMRC
Active company
Filing compliant
Trading 47 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. 01439837 (opens in new tab)incorporated 1979Companies House · checked 07 Jul
Registered activity
  • SIC 69203 - Tax consultancy
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 30 Jun 2025 (opens in new tab)Companies House · checked 07 Jul
Anti-money-launderingSupervised by HMRCMLR XRML00000147846By law, every UK accountant must be supervised for anti-money-laundering, by HMRC or an approved professional body. Being on the HMRC supervised register means this firm is monitored and operating legitimately.HMRC AML register · checked 20 Jul
Sources: Companies House (opens in new tab), HMRC AML register (opens in new tab)
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Good fit for

  • Handles Self Assessment

Specialisms and services

Services
Self Assessment

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Financials (as filed)

Companies House filing history (opens in new tab) | 2016 to 2025
Net assets
£3.9m
as at 30 Jun 2025+£273k vs 2024
Current assets
£4.3m
as at 30 Jun 2025+£452k vs 2024
Cash at bank
£4.3m
as at 30 Jun 2025+£451k vs 2024
Average employees
12
as at 30 Jun 2025-2 vs 2024
Current assets (cash, debtors, other) and net assets by year, in £. Latest year first.
202520242023202220212020201920182017201720162016
CashDebtorsOtherNet assets
Full figures
As filed30 Jun 202530 Jun 202430 Jun 202330 Jun 202230 Jun 202130 Jun 202030 Jun 201930 Jun 20181 Jul 201730 Jun 20171 Jul 201630 Jun 2016
Average employees12141414141315
Net assets£3,870,102£3,597,467£3,368,850£2,841,057£2,700,164£2,504,570£2,205,737£1,936,600£1,669,767£1,376,193
Cash at bank£4,262,402£3,810,983£3,704,454£2,188,149£2,031,317£1,831,307£1,585,174£1,305,838£1,241,677£1,313,221
Current assets£4,303,643£3,851,719£3,756,862£2,851,559£2,694,583£2,512,018£2,265,072£1,984,410£1,914,339£1,785,241
Fixed assets£548,938£378,838£178,198
Debtors£6,798£6,293£17,965£628,867£628,723£646,168£645,355£644,029£638,119£437,577
Shareholders equity£3,870,102£3,597,467£3,368,850£2,841,057£2,700,164£2,504,570£2,205,737£1,936,600£1,669,767£1,376,193

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. 1979Company incorporated
  2. 2025Latest accounts filed
  3. 2026Verified on this directory

Frequently asked questions

Is Seatax Limited a regulated accountant?

Yes. Seatax Limited is supervised for anti-money-laundering by HMRC (registration XRML00000147846). Every UK accountant must be supervised for anti-money-laundering, by HMRC or an approved professional body, so this confirms the firm is authorised to practise and monitored for compliance.

What services does Seatax Limited offer?

Based on its own website, Seatax Limited offers Self Assessment. Confirm current services and availability with the firm before engaging. Message this firm →

How long has Seatax Limited been established?

Seatax Limited was incorporated at Companies House in 1979, so it has been on the register for about 47 years. A longer trading history is one sign of an established, accountable firm, though a newer firm is not necessarily less capable.

Does Seatax Limited file its accounts on time?

Yes. According to Companies House, Seatax 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 Seatax Limited?

We build this record only from public, authoritative sources - for this firm, Companies House and HMRC AML 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. Seatax Limited scores 100/100. Nothing in the score is subjective, and every rule is listed on this page. How we verify →

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