Stamp Duty on Paper Share Transfers

Key facts

Stamp Duty on shares is charged at 0.5% of the consideration, rounded up to the nearest £5.
It applies to paper-based transfers using a stock transfer form.
No Stamp Duty is payable if the consideration is £1,000 or less.
The stock transfer form must be stamped by HMRC before the transfer can be registered by the company.
Stamp Duty on shares is a separate tax from SDLT (land) and SDRT (electronic shares).

What Is Stamp Duty on Shares?

Stamp Duty on shares is one of the oldest taxes in the UK, with origins in the Stamp Act 1891. It is a tax on instruments (physical documents) that transfer shares or securities for consideration. In modern practice, it primarily applies to private company share transfers that are executed on paper stock transfer forms.^[1]

For most investors buying listed shares through a broker, the equivalent tax is SDRT (Stamp Duty Reserve Tax), which is collected automatically on electronic transactions. Paper Stamp Duty is relevant when shares are transferred using a physical stock transfer form.

Rate and Threshold

Stamp Duty on shares is charged at 0.5% of the consideration paid, rounded up to the nearest £5:^[2]

Consideration	Stamp Duty (0.5%, rounded to nearest £5)
£1,000 or less	£0 (exempt)
£5,000	£25
£20,000	£100
£100,000	£500
£500,000	£2,500

Transfers where the consideration is £1,000 or less are exempt from Stamp Duty, provided a certificate of value is included on the stock transfer form.

The Stock Transfer Form

A stock transfer form is the standard document used to transfer shares in UK companies. The form records:^[1]

The transferor’s details (the person selling or giving the shares)
The transferee’s details (the person acquiring the shares)
The number and class of shares being transferred
The consideration paid (or a statement that it is a gift)
A certificate of value (if relevant) or exemption declaration

The form must be signed by the transferor and, in some cases, the transferee.

The Stamping Process

Before a company can register a share transfer, the stock transfer form must be stamped by HMRC (if Stamp Duty is payable). The process is:^[2]

Complete the stock transfer form with all required details
Calculate the Stamp Duty at 0.5% (rounded to the nearest £5)
Submit the form to HMRC’s Stamp Office — either by post or online via Stamp Taxes Online
Pay the Stamp Duty
HMRC stamps the form and returns it (or issues an electronic stamp certificate)
Present the stamped form to the company for registration

Deadline: Stamp Duty should be paid within 30 days of the date the stock transfer form is executed. Late payment can result in interest charges and penalties.

Exemptions and Reliefs

Several exemptions reduce or eliminate the Stamp Duty charge:^[1]

Exemption	Details
£1,000 threshold	No duty where consideration is £1,000 or less (certificate of value required)
Gifts	Transfers for no consideration (include gift certificate on form)
Charities	Transfers to qualifying charities
Group relief	Transfers between companies in the same 75% group
Divorce/dissolution	Transfers under a court order on divorce or civil partnership dissolution
AIM shares	Shares on recognised growth markets (including AIM)

Private Company Transfers

Stamp Duty on shares is most commonly encountered in private company share transactions, such as:

A shareholder selling their shares to another individual or company
Management buyouts or buy-ins involving share purchases
Investment rounds where new or existing shares are transferred
Company acquisitions (purchase of the target company’s shares)

Tip: If you are buying shares in a private company, ensure the Stamp Duty is paid and the form is stamped before requesting registration. Most companies will refuse to register a transfer without a properly stamped form (or evidence that no duty is payable).

Penalties for Late Payment

If Stamp Duty is not paid within 30 days of the stock transfer form being signed:^[2]

Interest is charged on the unpaid duty from the due date
A penalty may be charged, which can be up to the amount of the duty itself for significant delays
The stock transfer form cannot be registered until the duty (plus any interest and penalties) is paid

An unstamped form is not legally effective as a transfer of title, so the buyer does not become the registered shareholder until stamping is complete.

Frequently Asked Questions

When do I need to pay Stamp Duty on shares?

You pay Stamp Duty when you acquire shares through a paper-based transfer (using a stock transfer form) and the consideration exceeds £1,000. This typically applies to private company share transfers, as listed share transactions are usually electronic and subject to SDRT instead.

How do I get a stock transfer form stamped?

You submit the completed stock transfer form to HMRC’s Stamp Office (by post or online via the Stamp Taxes Online service) along with the Stamp Duty payment. HMRC stamps the form and returns it to you. The stamped form is then presented to the company registrar to update the register of members.

What if no money changes hands (e.g. a gift)?

If shares are transferred as a gift for no consideration, no Stamp Duty is payable. However, you may still need to complete a stock transfer form and submit it to HMRC with a “certificate of value” or an exemption declaration, particularly if the shares are in a private company.

Is there a deadline for paying Stamp Duty on shares?

Stamp Duty should be paid within 30 days of the stock transfer form being executed (signed). If paid late, HMRC may charge interest and penalties on the overdue amount.

Sources

Tax on shares: Stamp Duty on paper share transfers — GOV.UK
Stamp Duty on shares: detailed guidance — HMRC
Stamp Act 1891 — legislation.gov.uk