Portfolio Clarity Foundations

Bed and ISA

Definition

The process of selling a holding in a taxable account and repurchasing it inside a tax-sheltered account to move it into a more efficient wrapper.

Why it matters

It allows investors to shift existing holdings into a tax-efficient structure without permanently selling out of the position.

What most investors miss

The gap between what the term means and how it is usually applied.

They assume transferring holdings in kind between account types is possible. In most jurisdictions it is not. The sale and repurchase must happen in the market.

How to read it

Plan the timing carefully. The gap between sale and repurchase creates market exposure. The tax cost of the sale must be weighed against the future tax saving.

Multi-account lens

How this term reads differently across brokers and accounts.

For investors with holdings across multiple account types this strategy requires careful coordination to avoid unintended capital gains or wash sale issues.

Concrete example

What this looks like with real numbers.

Scenario

An investor holds 4,000 shares of a UK investment trust in a GIA, bought at 42p — now trading at 97p. Selling in the GIA triggers CGT on 55p/share × 4,000 = £2,200 gain. Using the annual £3,000 CGT allowance, they sell up to 5,454 shares tax-free and immediately repurchase inside an ISA, sheltering all future growth.

What it reveals

Bed and ISA is deliberate use of the annual CGT allowance to migrate high-gain positions into a tax-efficient wrapper before gains compound further outside it.

Diagnosis first, then workflow, then fit.

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