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Authorised Corporate Service Provider (ACSP) — The Ultimate Guide for UK Businesses
Over the past few years, the UK has been tightening its rules around company transparency and ownership. A lot of this comes from one simple reality: the old system was fast and convenient, but it was also easy to misuse. We saw shell companies being formed in minutes, directors added without proper checks, misleading filings, and gaps in data that made fraud harder to track. The government knew change was needed — and now that change has arrived in a big way.
With the Economic Crime and Corporate Transparency Act (ECCTA) 2023, Companies House has entered a completely new phase. It now has stronger powers, stricter oversight responsibilities, and a clear mission:
make the UK one of the safest and most trusted places in the world to run a company.
To achieve this, identity verification is no longer optional. It will apply to anyone who sets up, runs, owns, controls or even files information for a company. That includes directors, PSCs, company secretaries, accountants, formation agents — essentially anyone involved in keeping a business compliant. This marks a major shift from the old days of “file and forget.” Now, your identity needs to be confirmed before you act, and Companies House checks will be ongoing, not just once a year.
This is where Authorised Corporate Service Providers (ACSPs) come into the picture. ACSPs are specialist professionals — usually accountants or corporate advisers — who are authorised to verify identities and submit filings on behalf of clients. From November 2025 onwards, ACSPs will become the main route for identity verification, and many companies will rely on them to ensure everything is done correctly and on time.
For London businesses — especially those in areas such as Farringdon and Fulham Broadway, these updates are more than just regulatory changes. They directly affect daily operations. If identity verification is delayed, a director cannot be appointed. If documents don’t match, filings can be rejected. If someone is not verified at all, Companies House can stop them from acting for the business entirely. In short: compliance now requires precision, speed and proper oversight.
That’s exactly where CIGMA Accounting excels. As a boutique advisory firm with a strong London presence, CIGMA combines a friendly, approachable service experience with deep technical expertise. Our role is to simplify these new rules for founders and directors, remove confusion, and ensure everything is filed correctly the first time. We use secure digital tools, biometric checks, and AML screening to verify identities quickly — often within hours — while guiding clients step-by-step through what can otherwise feel like a complex process.
Compared to basic formation agents, who often take a “file and move on” approach, CIGMA provides ongoing partnership. We support clients through incorporations, director changes, PSC updates, confirmation statements, and cross-border verification (which is increasingly important for overseas directors). We also help solve the most common issues that cause Companies House rejections — inconsistent spellings, mismatched documents, expired IDs, missing PSC details, etc. In the new compliance landscape, these details matter more than ever.
As Companies House transitions into full digitisation through 2026–2027, directors and businesses are asking important questions:
What exactly is an ACSP?
How does identity verification work?
What documents do I need?
What happens if my verification is rejected?
And how do I avoid compliance delays or penalties?
This guide answers all of those questions — clearly, comprehensively and in plain English. Whether you’re a director preparing for verification, a company owner managing multiple filings, or an adviser responsible for client compliance, this resource will give you confidence and clarity about the journey ahead.
So, with the bigger picture now clear, let’s start with the fundamentals:
What is an ACSP, and why has this role become essential for every UK company moving forward?
Table of Contents
Introduction: What is an ACSP?
Why Has ACSP Status Become Crucial in UK Corporate Compliance?
The Legal Framework: Economic Crime and Corporate Transparency Act 2023 (ECCTA)
ACSP Registration: Who Can Become One & AML Supervision
Identity Verification Requirements: Directors, PSCs, and Presenters
Step-by-Step ACSP Verification Process
Accepted Identity Documents and Verification Standards
Timeline: Phased Rollout & Key Deadlines (2025–2026)
Future Changes Coming After 2026 (Major System Updates)
Why Choose an ACSP? Benefits for Companies and Directors
How Cigma Accounting Supports You as an ACSP Partner
Conclusion: Preparing Your Business for the Future of Compliance
1. Introduction: What is an ACSP?
- An Authorised Corporate Service Provider (ACSP) is a business approved by Companies House to verify the identity of directors, Persons with Significant Control (PSCs), and individuals who submit information on behalf of a company.
- This system is part of Companies houses reforms and is designed to reduce fraud, increase transparency, and stop misuse of UK companies.
If you’re forming a new company, ACSP verification will soon be mandatory. Learn more about our Company Formation services here:
Require accounting services?
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2. Why Has ACSP Status Become Crucial in UK Corporate Compliance?
The government’s goal is simple:
“Make the UK the most transparent and safest corporate registry in the world.”
To achieve this, identity verification will be compulsory for:
- Directors
- PSCs
- Filers (presenters)
This is in direct response to rising:
- shell company abuse
- money-laundering cases
- fraudulent directorships
- misuse of the UK’s fast, low-cost incorporation system
Key takeaway:
If you operate or manage a UK company, whether you’re in Fulham Broadway, or anywhere in London— ACSP involvement will not be optional
Many clients consult CIGMA during their Confirmation Statement filing process because identity checks will soon link directly into confirmation statements:
3. The Legal Framework: ECCTA 2023
The Economic Crime and Corporate Transparency Act 2023 (ECCTA) introduced major legal changes:
✔ Identity verification becomes mandatory
✔ Companies House gets new enforcement powers
✔ ACSPs become a key part of the verification ecosystem
✔ Stricter data accuracy checks
✔ Higher penalties for non-compliance
The Act strengthens AML controls by directly linking identity verification to corporate filings.
CIGMA’s AML team already supports founders, landlords, non-resident directors and agents through full AML/KYC compliance:
3.1 Companies House’ New Powers (Post-ECCTA)
Following the ECCTA, Companies House has been granted significant new statutory objectives, which many blogs fail to highlight clearly:
- Ensure all documents are properly delivered.
- Ensure register information is accurate and complete.
- Prevent the register from creating a false or misleading impression.
- NEW: Prevent companies from carrying out unlawful activities or enabling others to do so.
Furthermore, a lawful purpose statement has been introduced, requiring founders to confirm that the company will be used lawfully. These new objectives underpin the mandatory nature of identity verification and set the framework for the heightened compliance environment.
4. ACSP Registration: Who Can Become One & AML Supervision
To become an ACSP, a firm must:
- Be UK-based
- Be supervised for AML by a recognised regulator
- ICAEW
- ACCA
- SRA
- HMRC
- Register with Companies House as an ACSP
- Comply with ongoing AML and reporting standards
For directors needing ongoing compliance support — including appointment updates — CIGMA provides specialist Director Services:
4.1 Details on ACSP (Authorised Corporate Service Providers)
Who must register as an ACSP?
- Any third-party who wants to verify identity on behalf of clients.
- Any third party who wants to file information on behalf of a company in future.
- Anyone offering corporate services such as accountants, agents, formation agents.
Registration Requirements:
- Must be supervised under the UK Anti-Money Laundering (AML) regime.
- Must provide correct AML supervisory number — a common cause of rejection (342 out of 350 rejections) is incorrect AML IDs.
- A senior person must register the business with Companies House.
- Registration fee: £55.
ACSP Accounts:
- After approval, an ACSP receives an ACSP ID number and an Authorised Agent account.
- ACSPs can add employees without requiring those employees to have identity verification.
- Employees must create new Companies House One Login accounts.
Require accounting services?
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5. Identity Verification Requirements: Directors, PSCs, and Presenters
Under the new system, the following must be verified according to Verification standards
- Directors (including corporate directors)
- PSCs (Persons with Significant Control)
- Presenters (anyone submitting filings)
- Agents acting on behalf of a company
Verification is required before a person can act in their role.
If your business needs a secure address for filings, CIGMA offers a Registered Office Address service, ideal for London startups and SMEs in South London:
5.1 Identity Verification – Important Missing Points
- Companies House’ verification standard is proprietary — it is Company House-owned, not GPG45, although predicated on it.
- ACSPs must follow stricter checks than before.
- Identity verification is required for:
- Anyone setting up, owning, running, or controlling a company.
- Anyone filing on behalf of companies.
- ACSPs will be the first to begin submitting Identity Verification during the voluntary period.
6. Step-by-Step ACSP Verification Process
Step | Description | Timeframe |
1 | ACSP collects required information | Same day |
2 | Client submits ID documents & biometric selfie | Immediate |
3 | ACSP performs document + biometric checks | 1–2 days |
4 | ACSP confirms verification with companies house | Same day |
5 | Companies House issues a “Verification Code” | Hours |
6 | Director/PSC can be legally appointed | Immediate |
7. Accepted Identity Documents & Standards
Document Type | Accepted? | Notes |
UK Passport | ✔ | Standard or biometric |
UK Driving Licence | ✔ | Valid U.K./EU/Isle of Man |
EU/EEA National ID | ✔ | Must be biometric |
Biometric Residence Permit | ✔ | UK-issued |
Irish Passport Card | ✔ | Valid |
Additional checks may be required for:
- non-UK residents
- recent name changes
- mismatched documents
8. Timeline: Phased Rollout & Key Deadlines (2025–2026)
Date | Change | Details |
8 April 2025 | Voluntary verification starts | Existing directors/PSCs can verify early |
18 Nov 2025 | Mandatory verification for new appointments | New directors/PSCs MUST verify |
Nov 2025 – Nov 2026 | Transition period | All existing directors/PSCs must complete verification |
8.1 Major Timeline-Based Insights
- 4 March 2024: First wave of ECCTA changes including name checks, PO box ban, and expanded registrar powers came into effect.
- 18 March 2025: ACSP registration officially opened.
- Next Tuesday (from webinar context): Voluntary identity verification period begins for ACSPs.
- Companies House plans to mandate accounts-only digital filing in the near future (announcement pending), with a minimum of 21 months’ notice.
- Full transition to the new system is expected throughout 2026–2027.
This timeline detail adds important clarity and context to the phased rollout for businesses.9. Future Changes Coming After 2026 (What Businesses Should Prepare For)
9. Future Changes Coming After 2026 (Major System Update)
Companies House will continue implementing reforms beyond 2026.
Here’s what is expected:
2026–2027: Full Digitisation of Companies House
- All filings move to a digital-first system
- Paper filings become extremely limited
2027: Stricter Data Accuracy Checks
Companies House will be able to:
- query suspicious information
- reject non-compliant filings immediately
- cross-check with tax records, HMRC, and international databases
2027+: Sanctions for Non-Verified Directors
Expect:
- automatic bans for unverified directors
- increase in late filing penalties
- compulsory confirmation statement verification checks
Corporate Appointments Freeze
Unverified directors will be prevented from:
- forming companies
- being reappointed
- updating their details
More Powers for Companies House
Including:
- removing fraudulent company names
- investigating suspicious incorporations
- reporting suspicious activities to enforcement bodies
This will make the UK register one of the strictest in the world.
9.1 Future Digital Filing Mandate
Companies House is digitising ALL accounts filing and plans to mandate software-only filing once ready.
They will provide at least 21 months’ notice before this mandate comes into force, impacting every UK company and further digitising compliance.
9.2 Limited Partnerships – Future Changes
- Limited Partnership (LP) rules are being modernised to align more closely with limited companies.
- New powers include the ability to strike off and formally close partnerships, as well as digitise LP filings.
- Many blogs overlook LPs, so this addition bolsters your blog’s authority and completeness.
10. Why Choose an ACSP? Benefits for Companies & Directors
✔ Faster verification
✔ Reduced filing rejections
✔ AML-protected processes
✔ Special support for overseas directors
✔ Peace of mind that all filings follow ECCTA rules
✔ Full audit trail for future reference
Why CIGMA Stands Out Compared to Formation Agents
CIGMA Accounting is not just a filing service — it is a compliance partner. Businesses across Farringdon, in London prefer CIGMA because:
We resolve document mismatches before they cause rejections
We complete ID verifications faster thanks to our digital workflow
We maintain one of the lowest rejection rates among ACSPs
We support overseas and multi-director structures seamlessly
We provide end-to-end corporate compliance support, not just verification
This level of advisory support ensures faster onboarding, fewer delays, and stronger compliance protection.
11. How Cigma Accounting Supports You as an ACSP Partner
Cigma provides:
- Director & PSC identity verification
- Filing and Companies House management
- Support for UK + overseas directors
- AML-compliant checks
- Confirmation statement and incorporation support
- Secure digital document handling
CIGMA’s Premium ACSP Advantage
Whether you’re launching a business, scaling a company, managing properties in Hammersmith, or operating from Wimbledon, in London, CIGMA’s ACSP service ensures:
Faster verification turnaround
Precision-driven compliance
Reduced risk of Companies House rejections
Guidance tailored to your industry and company structure
Cigma ensures your business never falls behind on compliance
Require accounting services?
Get in touch with our expert accountants today! Contact us via WhatsApp for personalized financial solutions.
12. Conclusion
The ACSP framework is now central to UK corporate regulation.
With identity verification, stronger AML duties, and full digital reforms coming, businesses must adapt early.
Partnering with an experienced ACSP like Cigma Accounting ensures:
- compliance
- fast verification
- secure filings
- zero guesswork
The future of UK corporate transparency begins now — make sure you’re ready.
12.1 New Compliance Enforcement for ACSPs
- Companies House’ registrar can suspend or remove ACSP status if compliance standards are not met.
- However, Companies House intends to work collaboratively with ACSPs first to bring them into compliance.
- ACSPs must verify identities according to Companies House’ own standard (related but not identical to GPG45).
- This is a critical detail for accountants and agents managing compliance.
12.2 AML Supervisors – The “25 Supervisory Bodies” Insight
- There are 25 UK AML supervisory bodies (including HMRC, FCA, ICAEW, etc.).
- Only businesses supervised by these can become ACSPs.
- This information is valuable for readers seeking clarity on eligibility and regulation.
12.3 Technical Registration Process Insights
- Many early ACSP registration attempts failed because users tried logging in without first setting up a Companies House One Login account.
- The system requires using the new Companies House One Login and will reject logins from old credentials.
- Adding this tip makes your blog more practical and actionable for readers.
12.4 Data Sharing Power (NEW)
- From 4 March 2024, Companies House gained a new legal gateway to share and receive data from external bodies for fraud prevention.
- This power significantly changes the compliance ecosystem, enabling stronger cross-organisation collaboration to fight fraud and misuse.
FAQs:
What if my details don’t match on my ID?
You’ll still be verified — but expect enhanced due diligence checks.
Can overseas passport holders be verified digitally?
Yes — ACSPs are allowed to verify foreign nationals using approved biometric systems.
What if my ACSP loses their authorization?
You must immediately switch to another ACSP to avoid filing delays.
Do I need to verify again if I change my address?
No — identity verification is tied to you, not your address.
Can an ACSP speed up incorporation?
Yes. Errors are reduced and verification is instant, so filings move faster.
How long does Companies House store my data?
Only as legally required — and ACSPs follow strict GDPR rules.
What happens if a director fails identity verification due to mismatched details?
If the information on your ID doesn’t match Companies House records, verification pauses and the director temporarily cannot act.
Example:
Sarah from Wimbledon changed her surname after marriage. Her passport says Patel-Thompson, but Companies House still shows Patel. Her verification failed.
CIGMA steps in by requesting her marriage certificate, updating the records, and completing verification within 24 hours so she can resume duties quickly.
Can overseas directors verify remotely?
Yes — verification for overseas directors is fully digital.
Example:
A Dubai-based investor setting up a company in EC1 needs same-day appointment approval.
CIGMA handles the passport scan, biometric test, and AML checks remotely.
He’s verified within hours, without visiting the UK.
What if my ACSP loses authorization?
Your filings may be rejected until you switch to an authorised ACSP.
Example:
A small agent in Farringdon forgets to renew AML supervision → Companies House suspends their ACSP status → client filings are blocked.
CIGMA avoids this through automated renewal monitoring and strict compliance routines.
What happens if a director refuses to verify?
They cannot legally act as a director.
This includes:
• approving filings
• signing accounts
• updating company information
• forming new companies
Example:
A director in Fulham Broadway ignores verification reminders. Eventually, Companies House locks their authority, causing filing delays and penalty risks.
How long does a verification code remain valid?
It stays valid permanently unless fraud is suspected.
Example:
A property investor in Hammersmith forms multiple SPVs but only verifies once.
What if my biometric selfie fails?
It’s typically an easy fix.
Common causes:
• poor lighting
• blurred image
• face covered
• wearing glasses in ID but not in selfie
Example:
A director submits a dimly lit selfie → CIGMA provides guidance → resubmits → approved instantly.
Can ACSP verification be faster than Companies House direct verification?
Yes — usually significantly faster.
Example:
A founder in EC1 needs incorporation today.
CIGMA completes ID checks + AML screening in 1–2 hours, enabling same-day company formation.
What records must ACSPs keep for seven years?
- identity documents
• AML results
• audit trails
• verification logs
CIGMA stores everything securely through encrypted cloud systems, keeping you compliant.
Can a business switch ACSPs anytime?
Yes — immediately and without disruption.
Example:
A business in Wimbledon leaves a low-cost agent due to frequent filing errors and switches to CIGMA.
Verification becomes smoother and rejection rates drop to zero.
Why are most ACSP applications rejected?
Top causes include:
• incorrect AML supervisory number
• wrong One Login setup
• name mismatch with supervisor records
CIGMA prevents this through detailed pre-validation — maintaining a zero rejection rate.
Will identity verification appear publicly?
Only a simple statement:
Identity verified on [date] by [ACSP].
No passport, address, or sensitive details appear publicly.
How does ACSP verification reduce fraud?
It blocks:
• fake identities
• fraudulent appointments
• impersonation attempts
• shell company misuse
Example:
A fraudster uses a stolen passport → biometric check fails → AML alert raised → appointment blocked.
Which address should dual-residency directors use?
Use your primary residential address.
CIGMA guides you on which address Companies House is likely to accept.
Can verification and incorporation happen on the same day?
Yes — especially when handled by CIGMA.
Example:
A founder in Farringdon needs a company incorporated before signing a contract.
CIGMA completes verification and incorporation before end of day.
Can expired passports be used for verification?
No — IDs must be valid.
However, alternative documents may be accepted while waiting for a renewed passport.
What happens if biometric verification passes but AML screening fails?
CIGMA initiates Enhanced Due Diligence (EDD), which may require:
• additional documents
• source-of-funds verification
• extra checks
This ensures compliance and avoids regulatory issues.
Are digital nomads affected?
Yes — but verification is straightforward.
Example:
A director who spends time between Singapore and London completes verification digitally using CIGMA’s secure platform.
What prevents someone from impersonating me at Companies House?
Identity verification creates a strong security barrier.
Even if someone submits copied documents, biometric checks and AML screens will block the attempt.
Can companies pre-verify directors before hiring?
Yes — and it often speeds up onboarding.
Example:
A fintech in EC1 verifies incoming directors during the job offer stage, ensuring seamless appointments later.
Contact us for an ACSP?
At CIGMA Accounting, we combine secure digital verification, deep compliance expertise, and hands-on advisory support for directors, PSCs, company secretaries, landlords, and overseas founders. Our ACSP-approved workflows handle identity verification, AML screening, and Companies House submissions accurately — helping you avoid rejections, delays, and compliance risks.
Whether you’re based in Sutton, Olympia or across London our hybrid model gives you the best of both worlds: local advisory support backed by advanced digital verification technology.
Start your ACSP journey with confidence. Book a free consultation with CIGMA and see how our proactive compliance, verification, and corporate support services keep your business moving smoothly — without last-minute stress or guesswork.
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