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IG UK Offers 2026: Free Shares and 5% Interest Compared

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IG UK runs two offers for new investors right now: a welcome bonus that pays free UK-listed shares for new money invested, and a June boost that pays 5.00% AER on uninvested cash. They reward different things, so this page lays out both side by side and points you to the full details on each.

	Free shares	5% interest
What you get	Up to £300 in free UK-listed shares when you invest £300	5.00% AER on uninvested cash, up to £75,000 for 12 months
Promo code	WELCOME300	JUNINTER375
Best for	Investing new money	Holding cash between trades
Accounts	GIA, ISA or SIPP	New Share Dealing Account (GIA)
Deadline	Open through 31 December 2026	Sign up and invest £2,000 by 30 June 2026

WELCOME300: free shares for new money

New clients who invest at least £300 receive a bundle of free UK-listed shares worth up to £300, using promo code WELCOME300. It runs through 31 December 2026 and works on a General Investment Account, Stocks and Shares ISA, or SIPP. Full breakdown in our IG free shares guide.

JUNINTER375: 5% interest on cash

New clients who open a Share Dealing Account during June 2026 with code JUNINTER375 earn a boosted 5.00% AER variable on uninvested cash, on balances up to £75,000 for 12 months, after investing at least £2,000 by 30 June 2026. Full terms in our IG 5% interest guide.

Why choose IG?

IG is one of the longest-established brokers in the UK, FCA regulated and listed on the London Stock Exchange, with access to thousands of markets. Outside these promotions it pays a standard variable rate on uninvested cash and offers share dealing, ISAs, SIPPs and more, so the offers sit on top of a broad, well-run platform rather than being the only reason to sign up.

Frequently Asked Questions

What IG offers are available right now?

Two: the WELCOME300 free shares bonus for new money invested, and the JUNINTER375 5% AER interest boost on uninvested cash. Each has its own promo code and conditions.

Can I benefit from both offers?

They reward different things, so depending on IG's terms you may qualify for both on a new Share Dealing Account, one for the new money you invest and one for the cash you leave uninvested. Check each offer's conditions before relying on stacking them.

Which account types qualify?

WELCOME300 free shares works on a GIA, Stocks and Shares ISA, or SIPP. The JUNINTER375 5% interest boost is for a new Share Dealing Account (GIA) only.

What are the deadlines?

WELCOME300 runs through 31 December 2026. JUNINTER375 needs you to open the account and invest at least £2,000 by 22:00 on 30 June 2026.

DisclaimerTrading involves significant risk and may not be suitable for all investors. The value of investments can go down as well as up, and you may lose some or all of your initial investment. Offer rates and terms are set by IG, are subject to change, and apply for limited periods. This article is information, not investment advice. Do your own research. We may earn a commission from some of the brokers mentioned if you open an account through our links, at no extra cost to you.