Estate Valuation for Inheritance Tax (IHT) Purposes

Valuing an estate correctly is the cornerstone of strategic inheritance tax (IHT) planning. For executors, beneficiaries, and high-net-worth families alike, understanding how HMRC expects estates to be valued is critical for ensuring compliance, securing reliefs, and preserving family wealth.

Why Accurate Estate Valuation Matters

Before probate begins, the executor must estimate the estate’s total value, including property, financial assets, belongings, debts, and lifetime gifts. Even if no IHT is ultimately due, you must report accurate figures to HMRC.

Failing to value an estate correctly can result in:

• Loss of Nil-Rate Band (NRB) or Residence Nil-Rate Band (RNRB) benefits
• Interest or penalties from HMRC
• Delays in probate or disputes among beneficiaries

 Nil-Rate Band and Residence Nil-Rate Band (RNRB)

Each individual is entitled to a £325,000 NRB. An additional RNRB of up to £175,000 is available if the deceased owned a qualifying residence left to direct descendants.

Married couples or civil partners can combine allowances, potentially transferring up to £1 million tax-free. But this transfer is not automatic — executors must apply to HMRC for the unused portion.

Estates exceeding £2 million face a tapering of RNRB at £1 for every £2 over the threshold. This makes strategic lifetime gifting and valuation essential for high-value estates.

What HMRC Expects in an Estate Valuation

The Shares and Assets Valuation (SAV) team at HMRC may:

• Accept your submitted valuation
• Request further evidence
• Propose their own Open Market Value (OMV)

Executors should prepare:

• 3 years of financial statements
• Property valuations
• Details of business assets, unlisted shares, and goodwill
• Contracts of sale or inheritance
• Gift records from the last 7 years

Fixtures vs Chattels: Why It Matters

Certain discovered items – like antiques, heirlooms, or historical artefacts – are treated as chattels (movable items) for CGT and IHT. This remains true even if found on the deceased’s land unless they were permanently affixed.

Understanding this distinction ensures proper asset categorisation during valuation and prevents future disputes or HMRC challenges.

Special Valuation Cases

Business Property Relief (BPR) and Agricultural Property Relief (APR)

BPR and APR can offer up to 100% IHT relief on qualifying assets — but only with clear documentation and appropriate valuation methods (e.g. earnings multiple, super profits).

Under draft Finance Bill 2025-26 changes, from April 2026:

• A £1m cap will apply to 100% relief claims
• Excess will only get 50% relief
• AIM shares may only qualify for 50% relief

This highlights the need for regular valuations, restructuring of ownership, and early planning.

Shared Ownership Properties

Valuing shared ownership homes involves assessing both the owned share and any rent paid to the housing provider. Lease terms, staircasing rights, and regional valuations must be considered.

Goodwill and Intangible Assets

If the estate includes a business, intangible assets like goodwill are often overlooked but taxable. HMRC may challenge undervaluation. Exit planning and succession strategies should factor in goodwill valuation methods and documentation.

 Common Mistakes to Avoid

• Ignoring taper relief thresholds
• Failing to apply for unused NRB/RNRB
• Undervaluing business assets or omitting goodwill
• Not recording gifts from the last 7 years
• Overlooking chattels or shared property elements

How CIGMA Accounting Can Help

At CIGMA Accounting, we support executors, families, and solicitors across the UK in:

• Preparing HMRC-compliant estate valuations
• Applying for NRB/RNRB transfers
• Structuring estates to preserve IHT reliefs
• Navigating complex assets: trusts, overseas property, BPR/APR, shared ownership, and goodwill

Our tax advisors in London work closely with high-net-worth individuals, family offices, and SME owners to protect legacy and ensure smooth probate administration.

Speak to an Accountant About IHT Estate Planning

Accurately valuing an estate is essential for Inheritance Tax planning, as errors can lead to unexpected liabilities or missed reliefs. Proper valuations provide clarity for HMRC reporting and support strategic estate management. At Cigma Accounting, we assist individuals and families across Farringdon, Kings Cross, and Islington in calculating estate values with guidance from a trusted tax accountant in London.

Whether you are assessing property, investments, or other assets, professional advice ensures valuations are precise and compliant with HMRC requirements. Cigma Accounting provides tailored inheritance tax planning London to help clients manage estate valuations effectively and minimise IHT exposure, with physical offices across London.