HMRC-Ready CSOP Valuation Services for UK Companies
Globally Certified (CVA • ASA • ABV® • MRICS)
Valuation Experience
Valuations Completed
Industries Served
3-5 Days
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
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.
| Approach | Best For | Key Metrics and Methods |
|---|---|---|
| Market Approach | Companies with recent transactions or comparable public companies | Recent arm's-length share transactions and funding rounds, comparable public companies and market multiples, comparable company transactions |
| Income Approach | Companies with maintainable earnings or reliable revenue | Maintainable earnings or revenue, income-based valuation methods where appropriate |
| Asset Approach | Early-stage, holding, or asset-based companies | Net assets and underlying asset value |
Share Rights and Capital Structure
Unrestricted Market Value (UMV) Determination
When Do You Need a CSOP Valuation?
- 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)
Share Rights and Preference Terms
Minority Shareholding Considerations
Restrictions Affecting the Shares
Who Needs CSOP Valuation Services?
CSOP Valuation by Company and Grant Scenario
| Company / Grant Scenario | Typical Valuation Focus | Key Consideration |
|---|---|---|
| Initial CSOP Option Grant | Enterprise value and UMV determination | Establish the initial UMV for the shares under option |
| HMRC Advance Agreement Submission | Documented UMV with supporting evidence | Report structured for a written SAV submission with up to 3 years of accounts |
| Approaching the £60,000 Limit | UMV-based limit calculation | Value must be measured at grant or an applicable earlier agreed time |
| Follow-On CSOP Grant | Updated company and share valuation | Changes since the previous valuation should be reflected |
| Revenue-Generating Company | Market approach and relevant multiples | Recent transactions, comparable companies, and multiples may be considered |
| Asset-Based or Holding Company | Asset approach | Net assets may provide the most appropriate starting point |
| Complex Capital Structure | Share-class analysis | Preference rights and capital structure affect the ordinary share value |
| Multiple Share Classes (Post-2023) | Share rights and restrictions review | Removal of the share class restriction may open CSOP eligibility |
Benefits of a Professional CSOP Valuation
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
CSOP
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.
Information Required for a CSOP Valuation
Depending on the company, the exact information required will vary. TXN Capital typically requests:
| Category | Documents / Information Required | Details |
|---|---|---|
| Corporate Documents | Latest Articles of Association | Current capitalisation table |
| Financial Information | Recent financial statements, including up to three years of accounts where available | Recent management accounts and financial forecasts, where relevant |
| Funding and Transactions | Details of recent share transactions or funding rounds | Information 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
Free Consultation
Discuss your CSOP plans, company stage, and timeline with your assigned appraiser.
Document Collection
We provide a tailored checklist covering your Articles of Association, cap table, and financial information.
Analysis & Modeling
Apply the appropriate approach based on your company's funding history, financials, and capital structure.
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.
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
- 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
HMRC Advance Agreement
Unrestricted Market Value (UMV)
Updated Valuation After Material Change
The £60,000 Individual Limit
Share Rights and Restrictions
Valuation Validity
CSOP Valuation Standards and HMRC Guidance We Follow
RICS Valuation - Global Standards (Red Book)
International Valuation Standards (IVS)
HMRC Shares and Assets Valuation Guidance
USPAP
NACVA Professional Standards
Insights From Real Valuation Engagements
2,500+ Valuations. 50+ Industries. Deep Expertise in Each.
Why Choose Transaction Capital LLC?
Big 4 Quality. Boutique Speed. Zero Compromise.
| Capability / Feature | Transaction Capital LLC | Big 4 / National Firms | Automated Valuation Tools |
|---|---|---|---|
| Credentialed Valuation Professionals | ✓ | ✓ | ✗ |
| CSOP-Specific UMV Analysis | ✓ | ✓ | Limited |
| Share Rights & Capital Structure Review | ✓ | ✓ | Limited |
| HMRC / SAV Submission Support | Included | Available | ✗ |
| Pay After Draft Review | ✓ | Typically No | ✗ |
| Human Expert Sign-Off | ✓ | ✓ | Varies |
| Post-Valuation HMRC Support | Included | Often Extra | ✗ |
| Turnaround | 3–5 Business Days | Typically Longer | Fast / Automated |

Review Your HMRC-Ready Draft Before Payment
CSOP Valuation Support for Founders, CFOs, Tax Advisers and Legal Counsel
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 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
Get an HMRC-Ready CSOP Valuation
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.




