Company Share Purchase vs Property Asset Deal: SDLT Guide
Buying shares in a property-holding company attracts only 0.5% stamp duty on the share consideration. Buying the property directly as a company attracts 17% SDLT on residential property above £500,000. The difference on a £2 million purchase is £330,000 — but anti-avoidance rules under s123A FA2003 mean HMRC will challenge arrangements designed to exploit this gap.
Last verified: March 2026
Key Takeaways
- •Share deals attract 0.5% stamp duty on shares — not 17% SDLT on the property value
- •Companies buying residential property above £500,000 pay 17% SDLT (increased from 15% in October 2024)
- •Section 123A FA2003 targets arrangements where property is "wrapped" into a company solely to avoid SDLT
- •Genuine commercial reliefs exist: property rental business, property developer, and employee-occupied property
- •SDLT surcharges can stack: 17% rate applies alongside the 2% non-resident surcharge for overseas companies
In this article
Share Deal vs Asset Deal: The Core Difference
When a property is held by a company, there are two ways to acquire it. In an asset deal, the buyer purchases the property directly from the company. SDLT is payable on the property consideration at the relevant residential or commercial rates. In a share deal, the buyer purchases the shares in the company that owns the property. Stamp duty (not SDLT) is payable on the share consideration at a flat 0.5% rate.
This distinction has profound tax consequences. Stamp duty on shares is one of the simplest taxes in the UK: 0.5% on the chargeable consideration, rounded up to the nearest £5. There are no thresholds, no surcharges, and no banding. SDLT on residential property is far more complex — with progressive bands, surcharges for companies and non-residents, and anti-avoidance provisions.
| Feature | Asset Deal (SDLT) | Share Deal (Stamp Duty) |
|---|---|---|
| Tax base | Property consideration | Share consideration |
| Rate (residential >£500k) | 17% | 0.5% |
| Rate (commercial) | 0%/2%/5% bands | 0.5% |
| Surcharges | Yes (company, non-resident) | None |
| HMRC return required | Yes, within 14 days | Via CREST/stock transfer |
| Anti-avoidance risk | Lower | High if wrapped for tax |
| ATED obligation | Potentially (post-purchase) | Inherits from company |
Stamp Duty Comparison: 0.5% vs 17%
The 17% rate for companies buying residential property worth over £500,000 was introduced in the Autumn Budget 2024, increasing from the previous 15% rate. It applies to the entire purchase price (not just the amount above £500,000) and is a flat rate — the company pays 17% on £1 of consideration if the total exceeds £500,000.
How the 17% rate works
The 17% rate under s55 FA2003 applies to "higher rates transactions" where the purchaser is a company. It is a single flat rate applied to the entire consideration, not a banded calculation. A company paying £500,001 for a residential property pays £85,000.17 in SDLT — compared with a private buyer paying approximately £12,500. The rate applies to all companies regardless of whether they are UK or overseas incorporated (overseas companies additionally face the 2% non-resident surcharge).
| Purchase Price | Private Buyer (standard) | Company Buyer (17%) | Share Deal (0.5%) |
|---|---|---|---|
| £500,000 | £15,000 | £85,000 | £2,500 |
| £750,000 | £27,500 | £127,500 | £3,750 |
| £1,000,000 | £43,750 | £170,000 | £5,000 |
| £2,000,000 | £153,750 | £340,000 | £10,000 |
| £5,000,000 | £513,750 | £850,000 | £25,000 |
Share deal cost is 0.5% stamp duty on shares. Private buyer uses standard residential bands (post April 2025). Company rate is 17% flat on total price above £500k.
Worked Example: £2M Property
Consider a £2 million London residential property held by a special purpose vehicle (SPV) company. A commercial investor is acquiring the property.
Asset Deal (buy the property)
SDLT return due within 14 days of completion. Also triggers ATED review obligation.
Share Deal (buy the company)
Subject to s123A anti-avoidance review if company was recently incorporated or "wrapped" for this purpose.
This saving is real in genuine commercial transactions where the company has an independent trading or investment history. However, if the company was specifically incorporated to hold this one property and then sold with it to avoid SDLT, s123A will disregard the company structure and impose SDLT as if a direct asset purchase had taken place.
Anti-Avoidance: Section 123A FA2003
Section 123A Finance Act 2003 (inserted by FA2013) targets arrangements where property is transferred into a company and then the company shares are sold in a transaction that would have been a higher-rate SDLT transaction had the property been sold directly. HMRC can look through the share deal and charge SDLT as if the property had been conveyed directly.
When s123A applies
- •Bespoke wrapping: Property is transferred into a company (triggering SDLT) solely to enable a subsequent share sale
- •No independent business: The company has no real business activity beyond holding the single property
- •Scheme arrangements: A pre-arranged plan involving connected parties where the main purpose is to avoid the higher SDLT rate
- •Circular schemes: Arrangements where cash is paid for shares but the economic effect is the same as buying the property directly
The General Anti-Abuse Rule (GAAR) also applies to stamp taxes from 2013 onwards. HMRC has actively litigated a number of share-purchase arrangements designed to avoid SDLT and has generally succeeded where the structure was artificial. The disclosure of tax avoidance schemes (DOTAS) regime requires notification of SDLT avoidance schemes within 5 days of making them available.
Safe harbour: genuine pre-existing company structures
Where a property has been held by a company for several years, the company has genuine business operations, filed corporation tax returns, and the share sale reflects a commercial negotiation between unconnected parties, s123A is very unlikely to apply. The purchaser is not acquiring a "wrapper" — they are acquiring a going-concern company that happens to own property.
Reliefs from the 17% SDLT Rate
Schedule 4A FA2003 provides three reliefs from the 17% corporate rate for residential property asset deals. Each relief has strict conditions and can be withdrawn (clawed back) if the qualifying conditions are breached within three years.
1. Property Rental Business Relief
Available where the company intends to exploit the property as a source of rents in the course of a property rental business. The property must not be occupied by a participator (shareholder) or an associate. Clawback applies if the property ceases to be held for rental within 3 years. This is the most commonly used relief for institutional landlords and property investment companies.
2. Property Developer Relief
Available where the company is carrying on a property development trade and acquires the property for the purposes of that trade. The property must be developed and sold in the normal course of the trade. Developer companies cannot retain the developed properties as rental stock and claim this relief — they must genuinely sell them.
3. Employee-Occupied Property Relief
Available where the property is acquired for occupation by employees of the company (not participators) who must occupy it for the purpose of their employment. This relief is narrow and typically applies to employer-provided accommodation in genuine employment contexts — not to buy-to-let or director accommodation.
Surcharge Stacking for Companies
When a company buys UK residential property directly (asset deal), multiple SDLT surcharges can stack. A UK company pays 17%. An overseas company adds the 2% non-resident surcharge on top, producing a combined rate that exceeds the headline figures.
How surcharges combine
The 17% rate already incorporates the standard SDLT bands plus the 5% additional dwelling surcharge (applied at 12% top-band on the full price). The 2% non-resident surcharge is then added on top of the 17% rate for overseas companies, producing a 19% effective rate on the total consideration. See our Foreign Company UK Property guide for the full surcharge stacking analysis including ATED.
Frequently Asked Questions
Is it cheaper to buy shares in a property company than the property itself?
On the face of it, yes: 0.5% stamp duty versus 17% SDLT. On a £2 million property this is a saving of £330,000. However, the buyer inherits all the company's liabilities, latent CGT, potential ATED arrears, and deferred tax — so the net saving is usually far smaller after due diligence adjustments to the share price. Additionally, HMRC's s123A anti-avoidance rule can disregard artificial share wrappers.
What is the 17% stamp duty rate for companies?
The 17% rate applies under Schedule 4A FA2003 when a company (or corporate body) acquires a residential dwelling worth over £500,000. It increased from 15% on 31 October 2024 (Autumn Budget). Below £500,000, companies pay the same additional rates as private buyers (standard bands plus the 5% additional dwelling surcharge). The rate is a flat 17% on the total consideration, not a banded calculation.
Can a company claim relief from the 17% SDLT rate?
Yes. Three reliefs are available under Schedule 4A: property rental business relief (for letting the property commercially), property developer relief (for development and resale), and employee-occupied property relief (for genuine employee accommodation). Each has strict qualifying conditions and a 3-year clawback provision. Reliefs must be claimed in the SDLT return at the time of purchase.
Will HMRC challenge a share deal to avoid stamp duty?
HMRC actively challenges share deals that appear to have been structured primarily to avoid SDLT. Section 123A FA2003 allows HMRC to look through a company and treat a share purchase as a direct property acquisition for SDLT purposes if the arrangement is not genuine. The General Anti-Abuse Rule (GAAR) also applies. Genuine commercial share deals — where the company has substance, history, and the sale is between arm's-length parties — are not affected.
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Emma Richardson, MRICS
Chartered Surveyor & Property Tax Specialist
Emma Richardson is a RICS-qualified Chartered Surveyor with over 12 years of experience in UK property taxation. She founded Stamp Duty Calculator to help buyers understand the complex world of property transaction taxes.