IG UK Offers: Free Shares and Cash Interest
IG UK runs a welcome offer that pays free UK-listed shares for new money invested, and it pays interest on the uninvested cash in your account, with boosted rates from time to time. They reward different things.
| Free shares | Cash interest | |
|---|---|---|
| What you get | Up to £300 in free UK-listed shares when you invest £300 | Interest on uninvested cash, standard variable rate with boosted rates at times |
| Promo code | WELCOME300 | No code needed for standard interest |
| Best for | Investing new money | Holding cash between trades |
| Accounts | GIA, ISA or SIPP | Share Dealing, ISA or SIPP |
| Deadline | Open through 31 December 2026 | Standard rate is ongoing; boosts are time-limited |
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.
Interest on uninvested cash
IG pays interest on the GBP cash you hold but have not invested, at a standard variable rate it sets and can change, credited monthly. On top of that it runs boosted rates for new clients from time to time, such as the 5.00% AER offer it ran in June. Those boosts are time-limited, so check whether one is live before you fund an account. Full detail in our IG cash 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 offers it runs share dealing, ISAs, SIPPs and more, so the promotions 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?
The main one is the WELCOME300 free shares bonus for new money invested. Alongside it, IG pays interest on uninvested cash and periodically runs boosted rates on that cash. Check the sections above for the current detail on each.
Can I get free shares and earn interest on cash?
They reward different things, so on a new account you can invest new money to claim the free shares and still earn interest on any cash you leave uninvested. Check each offer's conditions before relying on combining them.
Which account types qualify?
WELCOME300 free shares works on a GIA, Stocks and Shares ISA, or SIPP. IG pays interest on eligible uninvested cash across its accounts, with boosted promotions typically limited to a new Share Dealing Account for new customers.
What are the deadlines?
WELCOME300 runs through 31 December 2026. The standard interest rate is ongoing, while any boosted rate runs only for its promotional window.
