HMRC-Ready CSOP Valuation Services for UK Companies

Get independent CSOP share valuations establishing Unrestricted Market Value (UMV), led by MRICS, ASA, ABV and CVA credentialed professionals, with reference to RICS Valuation Global Standards and HMRC requirements.

Globally Certified (CVA • ASA • ABV® • MRICS)

15+ Years

Valuation Experience

2500+

Valuations Completed

50+

Industries Served

3-5 Days

Turnaround Time

Why Accurate CSOP Share Valuation Matters for HMRC

For a qualifying CSOP, the exercise price of an option must not be manifestly less than the market value of the underlying shares at the relevant time. For shares subject to restrictions, HMRC considers market value for CSOP purposes as if those restrictions did not apply: the Unrestricted Market Value (UMV).

A professionally prepared CSOP valuation provides the analysis and supporting evidence needed to establish a defensible share value and, where required, seek advance agreement with HMRC Shares and Assets Valuation (SAV).

Transaction Capital prepares CSOP valuation reports specifically for this purpose, led by an MRICS valuation professional and prepared with reference to recognised business valuation principles and methodologies.

Our CSOP Valuation Services

Transaction Capital provides independent CSOP valuation reports at every stage of a CSOP scheme, from the first option grant through HMRC advance agreement and follow-on grants.
Initial CSOP Valuation

HMRC Advance Agreement Support

Post-Funding Round CSOP Valuation
Follow-On CSOP Valuation

£60,000 Limit Compliance Valuation

Get an Independent CSOP Valuation for Your Company Today.

CSOP Valuation Methods We Use

A CSOP valuation is not simply a calculation of enterprise value divided by the number of shares. The valuation needs to consider the company's financial position, recent share transactions, funding history, share rights, capital structure, market evidence and the specific shares being placed under option.

TXN Capital's CSOP valuations are led by an MRICS valuation professional and prepared with reference to the RICS Valuation - Global Standards (Red Book) and applicable UK valuation requirements. The appropriate methodology depends on the company's stage, financial performance and available market evidence.

ApproachBest ForKey Metrics and Methods
Market ApproachCompanies with recent transactions or comparable public companiesRecent arm's-length share transactions and funding rounds, comparable public companies and market multiples, comparable company transactions
Income ApproachCompanies with maintainable earnings or reliable revenueMaintainable earnings or revenue, income-based valuation methods where appropriate
Asset ApproachEarly-stage, holding, or asset-based companiesNet assets and underlying asset value

Share Rights and Capital Structure

The analysis considers rights attaching to different classes of shares, preference rights and capital structure, and relevant minority shareholding considerations.

Unrestricted Market Value (UMV) Determination

Restrictions affecting the shares are analysed against the company's actual circumstances to determine the Unrestricted Market Value used for CSOP purposes.

When Do You Need a CSOP Valuation?

Independent CSOP valuations support first-time option grants, HMRC advance agreement, follow-on grants, and updated share values following material company changes.
  • Initial CSOP Option Grant - Establish UMV before the company grants its first CSOP options.
  • HMRC Advance Agreement Submission - Provide independent valuation analysis supporting the proposed UMV submitted to HMRC Shares and Assets Valuation.
  • Company No Longer Qualifies for EMI - Companies that have outgrown EMI eligibility, or otherwise cannot use EMI, often turn to CSOP as an alternative tax-advantaged structure.
  • Material Change in Circumstances - A significant change affecting company or share value may require the valuation to be reconsidered.
  • Follow-On CSOP Option Grant - Update UMV before issuing additional options under an existing CSOP scheme.
  • Approaching or exceeding the £60,000 Limit - Confirm the UMV-based value counted toward an employee's individual CSOP limit before granting further options.
  • Recent Share Transaction or Funding Round - New arm's-length transactions can provide relevant evidence that should be incorporated into the valuation.

Not Sure If You Need a CSOP Valuation?

Unrestricted Market Value (UMV) in CSOP Valuation: What Determines It?

CSOP valuations use a single value concept. Unlike EMI, which requires both UMV and AMV, HMRC considers market value for CSOP purposes as if the shares' relevant restrictions did not apply: the Unrestricted Market Value (UMV) alone. 

Unrestricted Market Value (UMV)

UMV represents the market value of the shares assuming relevant restrictions affecting their value are removed. It is the basis both for setting the exercise price and for measuring the value counted toward the £60,000 individual limit.

Share Rights and Preference Terms

Rights attaching to different classes of shares, preference rights, and capital structure all affect the analysis behind the UMV conclusion.

Minority Shareholding Considerations

Where the shares under option represent a minority interest, relevant minority shareholding considerations are factored into the analysis.

Restrictions Affecting the Shares

Restrictions contained in the company's Articles of Association and other governing documents are identified and assessed as part of determining UMV.

Who Needs CSOP Valuation Services?

Founders and Company Directors

Independent share values for establishing and managing employee CSOP option grants.

CFOs and Finance
Teams

UMV analysis supported by company financials, cap tables, and funding history.

UK Tax Advisers and Accountants

HMRC-ready valuation analysis for review and submission on behalf of clients.

Corporate and Legal Advisers

Analysis of articles, share rights, restrictions, and capital structure.

CSOP Valuation by Company and Grant Scenario

The valuation approach and supporting analysis vary depending on company stage, funding history, share rights, and the circumstances surrounding the CSOP grant.
Company / Grant ScenarioTypical Valuation FocusKey Consideration
Initial CSOP Option GrantEnterprise value and UMV determinationEstablish the initial UMV for the shares under option
HMRC Advance Agreement SubmissionDocumented UMV with supporting evidenceReport structured for a written SAV submission with up to 3 years of accounts
Approaching the £60,000 LimitUMV-based limit calculationValue must be measured at grant or an applicable earlier agreed time
Follow-On CSOP GrantUpdated company and share valuationChanges since the previous valuation should be reflected
Revenue-Generating CompanyMarket approach and relevant multiplesRecent transactions, comparable companies, and multiples may be considered
Asset-Based or Holding CompanyAsset approachNet assets may provide the most appropriate starting point
Complex Capital StructureShare-class analysisPreference rights and capital structure affect the ordinary share value
Multiple Share Classes (Post-2023)Share rights and restrictions reviewRemoval of the share class restriction may open CSOP eligibility

Benefits of a Professional CSOP Valuation

Defensible Exercise Price
Properly Assessed UMV
Accurate £60,000 Limit Calculation
Support for Adviser Review
HMRC Query Support
HMRC Advance Agreement Support

CSOP Valuation vs EMI Valuation: What's the Difference?

Both EMI and CSOP are UK tax-advantaged employee share option arrangements, but their eligibility requirements and valuation considerations differ.

EMI

Generally designed for qualifying smaller and growth companies and permits substantially larger individual option awards.

CSOP

Can be available to companies that do not satisfy the EMI requirements and is not subject to the same company-size restrictions.

For companies that have outgrown EMI eligibility or otherwise cannot use EMI, a CSOP can provide an alternative tax-advantaged employee option structure. 
 

Find the Right Value for Your CSOP Share Options
with Transaction Capital LLC.

Get an independent, defensible Unrestricted Market Value (UMV) to support your CSOP option grant and HMRC Shares and Assets Valuation review.

Information Required for a CSOP Valuation

Depending on the company, the exact information required will vary. TXN Capital typically requests: 

CategoryDocuments / Information RequiredDetails
Corporate DocumentsLatest Articles of AssociationCurrent capitalisation table
Financial InformationRecent financial statements, including up to three years of accounts where availableRecent management accounts and financial forecasts, where relevant
Funding and TransactionsDetails of recent share transactions or funding roundsInformation on recent arm's-length transactions and funding activity

Information about any planned financing, sale, or other significant corporate event 

How Our CSOP Valuation Process Works

Our process is built around the documentation HMRC expects to see, without unnecessary delay.
1
Discovery

Free Consultation

Discuss your CSOP plans, company stage, and timeline with your assigned appraiser.

2
Gathering

Document Collection

We provide a tailored checklist covering your Articles of Association, cap table, and financial information.

3
Analysis

Analysis & Modeling

Apply the appropriate approach based on your company's funding history, financials, and capital structure.

4
Valuation

Draft Report Delivery

Receive your complete draft, methodology, analysis, and UMV conclusion, before any payment is due. This is our Pay After Draft Review guarantee.

5
Completion

Final Report & HMRC Support

Signed, expert-reviewed report delivered for your SAV submission, with support for reasonable HMRC questions.

What Your CSOP Valuation Report Includes

Each engagement is tailored to the company and proposed option grant. The valuation package typically includes:
  • Company and Industry Analysis - Review of the company's operations, financial position, development stage and relevant market environment
  • Capitalisation and Share Rights Review - Analysis of the company's share classes, Articles of Association, funding history and rights attaching to the option shares
  • Valuation Methodology - Selection and application of the appropriate market, income or asset-based valuation methodology
  • Unrestricted Market Value (UMV) Determination - Determination of the market value of the relevant shares without taking restrictions into account, consistent with the CSOP valuation requirement
  • HMRC Supporting Analysis - Clear documentation of the assumptions, calculations, methodology and evidence supporting the proposed share value
  • Independent Valuation Report - A professionally prepared report suitable for supporting a submission to HMRC Shares and Assets Valuation

HMRC-Ready CSOP Valuation Reports, Not Template-Driven

A CSOP valuation is not simply a calculation of enterprise value divided by the number of shares. 

It should clearly demonstrate: 

  • What is the company worth? 
  • What is the appropriate Unrestricted Market Value? 
  • What evidence supports the conclusion? 
  • How do share rights and capital structure affect value? 
  • What restrictions apply to the shares under option? 
  • How was the value counted toward the £60,000 limit determined? 
  • Is the valuation ready for HMRC Shares and Assets Valuation review? 

TXN Capital prepares each CSOP valuation around the company's actual financial position, capital structure and share rights. The result is a concise, professionally supported report designed for HMRC review. 

CSOP Valuation Requirements: What You Need to Know

An unsupported CSOP share value can leave the exercise price open to challenge, putting the scheme's tax-advantaged status at risk.

HMRC Advance Agreement

Companies can seek HMRC agreement of the proposed share value before granting CSOP options.

Unrestricted Market Value (UMV)

UMV reflects the share value assuming relevant restrictions affecting value have been removed.

Updated Valuation After Material Change

Funding rounds or material changes may require an updated valuation before further CSOP grants.

The £60,000 Individual Limit

Employees may generally hold CSOP options over shares worth up to £60,000 based on UMV.

Share Rights and Restrictions

Articles, share class rights, and relevant restrictions should be considered in the valuation analysis.

Valuation Validity

For unlisted companies, an agreed value may generally be relied upon for up to 90 days.

CSOP Valuation Standards and HMRC Guidance We Follow

RICS Valuation - Global Standards (Red Book)

CSOP valuations are prepared by an MRICS-qualified professional with reference to Red Book Global Standards.

International Valuation Standards (IVS)

Global valuation framework applied to business and share valuation analysis, supporting a consistent and structured approach.

HMRC Shares and Assets Valuation Guidance

The valuation report is prepared with reference to HMRC's published guidance on CSOP share valuation.

USPAP

Uniform Standards of Professional Appraisal Practice, the foundational appraisal standard our ASA and ABV credentialed professionals follow.

NACVA Professional Standards

Professional standards followed by our CVA-credentialed analysts across applicable valuation engagements.

Insights From Real Valuation Engagements

2,500+ Valuations. 50+ Industries. Deep Expertise in Each.

Our Appraisers Understand Industry-Specific Risk Factors and Reporting Unit Dynamics.
Technology & SaaS

Fintech & Financial

Agriculture & Agribusiness

Manufacturing & Industrial
Real Estate

Energy, Oil & Gas

Consumer Goods & Retail

E-commerce & Digital Businesses
Education Technology

Telecommunications

Logistics & Transportation

Startups & Venture-Backed Companies
Professional Services

Healthcare & Medical

Media & Entertainment

Construction & Infrastructure

Why Choose Transaction Capital LLC?
Big 4 Quality. Boutique Speed. Zero Compromise.

The CSOP valuation market has two extremes: generic valuation tools that may overlook company-specific share rights and capital structures, and large advisory firms with lengthy processes. Transaction Capital LLC delivers independent, credentialed CSOP valuations for UK companies, with defensible Unrestricted Market Value (UMV) analysis to support CSOP option grants and HMRC Shares and Assets Valuation review.
Capability / FeatureTransaction Capital LLCBig 4 / National FirmsAutomated Valuation Tools
Credentialed Valuation Professionals
CSOP-Specific UMV AnalysisLimited
Share Rights & Capital Structure ReviewLimited
HMRC / SAV Submission SupportIncludedAvailable
Pay After Draft ReviewTypically No
Human Expert Sign-OffVaries
Post-Valuation HMRC SupportIncludedOften Extra
Turnaround3–5 Business DaysTypically LongerFast / Automated

Review Your HMRC-Ready Draft Before Payment

Review the complete CSOP valuation report and proposed Unrestricted Market Value (UMV) conclusion before finalising payment and preparing your submission to HMRC Shares and Assets Valuation (SAV).

CSOP Valuation Support for Founders, CFOs, Tax Advisers and Legal Counsel

We provide clear, defensible CSOP valuation analysis to support option grants, HMRC advance agreement, adviser review, and future valuation queries.
  • Founders and Company Directors

    Independent UMV analysis for initial, follow-on, and refreshed CSOP option grants.
  • UK Tax Advisers and Accountants

    HMRC-ready valuation support with documented methodology, assumptions, and share-value conclusions.
  • Corporate and Legal Advisers

    Clear analysis of Articles of Association, share restrictions, rights, and complex capital structures.
  • Finance Teams and CFOs

    Expert-reviewed valuations reflecting funding rounds, cap tables, forecasts, and current company circumstances.

Thousands of Estates Protected. One Standard of Quality.

Join thousands of families, business owners, and estate professionals who rely on Transaction Capital LLC for gift and estate tax valuations that hold up when it matters most - in IRS examinations, in court, and in front of the attorneys reviewing your plan.

Do Not Take Our Word for It.

Transaction Capital LLC is rated on G2, Trustpilot, and Clutch by CFOs, controllers, and finance professionals across the United States.
★★★★★

Transaction Capital LLC delivered a high-quality Fair Market Value (FMV) analysis with exceptional responsiveness, professionalism, and depth. The team communicated clearly throughout the process and provided strong transparency around their methodology, allowing stakeholders to understand not just the conclusions, but the rationale behind them.

★★★★★

The work delivered by TXN Capital LLC on the IVS 105 valuation for our deeptech startup demonstrates great quality. Their clarity in documenting assumptions and methodologies ensures transparency and ease of understanding.

★★★★★

Working with Gaurav at Transaction Capital LLC for our 409A valuation was seamless and professional. He delivered a thorough, defensible report quickly and explained every detail clearly. Highly recommend for any startup seeking a reliable and efficient valuation partner.

★★★★★

Transaction Capital LLC, led by Dr. Gaurav, is truly the best in the business valuation space. I’ve seen the results firsthand — working with anyone else would be a waste of money. Believe me, they are the best.

★★★★★

Gaurav is very knowledgable in his field and was super helpful in his response and explanations. He finished the contract well before the deadline! Highly recommended. Thanks Gaurav

★★★★★

We got the Financial Model made by Gaurav which included all the standard things. Gaurav was helpful in explaining all the complex lingos and make it simple for us to understand. Strongly recommend him for getting FM made

US-Based CSOP Valuation Experts Supporting UK Companies

TXN Capital provides independent CSOP valuation services to private companies across the United Kingdom preparing to grant CSOP options, seek HMRC advance agreement, or update an existing share valuation.

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    Get an HMRC-Ready CSOP Valuation

    Establish a defensible Unrestricted Market Value (UMV) before granting CSOP options.
    Transaction Capital provides independent, MRICS-led CSOP valuations supported by clear methodology, private-company valuation analysis and professional reporting for HMRC Shares and Assets Valuation purposes.

    CSOP Valuation Frequently Asked Questions

    What is a CSOP valuation?

    Does HMRC Require a Valuation for CSOP Options?

    What is Unrestricted Market Value (UMV)?

    How much can an employee receive under a CSOP?

    How does HMRC agree a CSOP valuation?

    Is VAL230 required for a CSOP valuation?

    How long is an HMRC-agreed CSOP valuation valid?

    What documents are normally required?

    Is a CSOP valuation the same as an EMI valuation?

    Is the valuation prepared under RICS standards?

    Is HMRC Advance Agreement Mandatory for a CSOP Valuation?

    How Long Does a CSOP Valuation Take?