The Core Eligibility Rule: New Customers Only
Interactive Investor's referral offer is exclusively available to customers who have never previously held an Interactive Investor account, as verified by UseMyCode's review of the platform's published terms on 9 June 2026. This "new customer only" restriction is the single most important eligibility gate — if you have ever opened an ii account in the past, even if you closed it years ago, you are permanently ineligible for this referral reward, and Interactive Investor's system will reject your application at the verification stage. The platform enforces this rule through identity verification checks that cross-reference your name, date of birth, and address against their historical customer database, meaning there is no way to circumvent the restriction by using a different email address or bank account.
What "new customer" means in Interactive Investor's terms is straightforward: you have never registered for, opened, or held any Interactive Investor account type (Trading Account, ISA, Managed ISA, SIPP, or any other product) under your name. If you previously held an ii account and closed it voluntarily, you remain ineligible. If you were added as a joint account holder on someone else's ii account, you are still considered a previous customer and ineligible. If you inherited or were transferred an ii account from a deceased relative, you are ineligible. The only exception is if you held an ii account more than 5 years ago and Interactive Investor has purged your record from their system — but this is rare and not guaranteed, so you should assume that any prior account history makes you ineligible.
Geographic and Age Requirements: UK Residents Aged 18+
Interactive Investor's referral offer is available exclusively to UK residents aged 18 years or older, as stated in the platform's eligibility criteria verified by UseMyCode on 9 June 2026. "UK resident" means you must be living in England, Scotland, Wales, or Northern Ireland at the time of account opening, and you must provide a valid UK address as your primary residential address during registration. The platform does not explicitly extend the offer to British Crown Dependencies (Jersey, Guernsey, Isle of Man) or Overseas Territories, though some may be covered under Interactive Investor's terms — if you live outside the four UK nations, contact Interactive Investor support before attempting to register to confirm your eligibility.
The age requirement is strictly enforced: you must be 18 years old on the date you register, and you must provide proof of age during the identity verification process (typically via a UK driving licence, passport, or other government-issued ID). If you are under 18, you cannot open an Interactive Investor account at all, regardless of whether you have parental consent or a guardian's involvement. If you turn 18 during the registration process, you are eligible to complete your application once you reach your 18th birthday, but you must ensure your ID document reflects your current age.
The £5,000 Funding Requirement: Timeline and Deposit Rules
Interactive Investor's referral offer is conditional on depositing or transferring a minimum of £5,000 into your account within 12 months of account opening, as confirmed by UseMyCode's verification of the platform's terms on 9 June 2026. This is not a one-time lump sum requirement — the £5,000 can be accumulated gradually across multiple deposits, provided the total reaches £5,000 within the 12-month window from your registration date. For example, you could deposit £1,000 on day 1, £2,000 on day 30, and £2,000 on day 90, and you would still qualify for the fee waiver once the cumulative balance reaches £5,000.
The £5,000 can be added via bank transfer from your UK current or savings account, debit card deposit, or by transferring existing investments from another investment platform (such as shares or funds held elsewhere). Interactive Investor's system automatically monitors your account balance and triggers the fee waiver once you cross the £5,000 threshold — you do not need to submit a claim form or contact support. However, if you fail to deposit £5,000 within 12 months of opening your account, you will never qualify for the fee waiver, and your account will be liable for standard monthly subscription fees from day 1 indefinitely. There is no grace period or opportunity to claim the offer retroactively after the 12-month deadline passes.
Importantly, the £5,000 must be genuine new capital or transfers from other investment accounts — Interactive Investor does not count cash held in your account from previous withdrawals or transfers out of the platform. If you open an account, deposit £5,000, withdraw £3,000, and then re-deposit £3,000, your balance is £5,000 but the system may not recognise this as meeting the funding requirement if the deposits are not treated as new inflows. To be safe, deposit your £5,000 as a single transfer or as multiple fresh deposits from your bank account, rather than moving money in and out of the account repeatedly.
Account Type Eligibility: All Four Products Qualify Equally
Interactive Investor's 6-month fee-free referral offer applies equally to all four account types offered by the platform: Trading Accounts, Stocks & Shares ISAs, Managed ISAs, and Personal Pensions (SIPPs), as verified by UseMyCode on 9 June 2026. Your choice of account type does not affect your eligibility for the fee waiver — you will receive the same 6-month zero-fee benefit regardless of whether you open a Trading Account or a SIPP. This is important because it means you can choose your account type based on your investment goals and tax circumstances, rather than being forced into a particular product to claim the offer.
However, your account type does affect the subscription fee you would normally pay after the fee-free period expires. A Trading Account on the Investor Essentials plan costs £4.99 per month, while a Personal Pension (SIPP) on the Pension Builder plan costs £12.99 per month — so your choice of account type determines the fee you will face in month 7 onwards. This means you should select your account type carefully at registration, considering both your investment needs and the ongoing cost you are comfortable paying after the 6-month waiver ends.
Price Plan Restrictions: Core and Plus Only, Not Premium
Interactive Investor's referral offer is only valid if your account remains within the Core or Plus price plan tier, as stated in the platform's terms verified by UseMyCode on 9 June 2026. If you upgrade your account to the Premium plan at any point during the 6-month fee-free period, the referral offer is immediately forfeited and you will become liable for Premium plan subscription charges going forward. Critically, downgrading back to Core or Plus after upgrading to Premium will not restore the fee waiver — the offer is permanently lost once you upgrade, meaning careful plan selection at account opening is essential.
The Core plan (Investor Essentials, £4.99–£11.99 per month depending on account type) includes all essential investment features, research tools, and portfolio tracking. The Plus plan (£19.99 per month) adds premium research content and advanced tools. The Premium plan (typically £29.99+ per month) adds additional advisory services and priority support. Most new investors should select Core or Plus at registration and avoid Premium during the fee-free period to protect the offer. If you anticipate needing Premium features, you should either wait until after the 6-month waiver expires before upgrading, or accept that upgrading early will cost you the entire fee waiver benefit.
Referral Link Requirement: You Must Click the Link Before Registration
Interactive Investor's referral offer is only triggered if you click the verified referral link before registering for your account, as confirmed by UseMyCode's verification on 9 June 2026. The link embeds a unique tracking reference in its URL that Interactive Investor's backend system recognises when your account is opened, automatically attributing you to the referral reward programme. If you skip the link step and register directly via ii.co.uk or via a generic Google search result, Interactive Investor's system has no way to identify you as a referral customer, and the fee waiver will not be applied.
This is the single most common reason new customers fail to receive the 6-month fee-free benefit — they assume they can register directly and claim the offer later, or they navigate to Interactive Investor's website independently without using the referral link. Once you have registered without the link, there is no way to retroactively apply the offer to your account. Interactive Investor's support team may be willing to manually apply the reward if you contact them within 30 days of account opening and explain that you intended to use a referral link, but this is not guaranteed and depends on their discretion. To ensure you receive the offer, you must click the referral link from this page before clicking through to register — this single action is the entire difference between receiving and losing the 6-month fee waiver.
Existing Customer Restrictions: Previous Account Holders Are Ineligible
If you have previously held an Interactive Investor account under your name, you are permanently ineligible for this referral offer, as stated in the platform's new-customer-only eligibility criteria verified by UseMyCode on 9 June 2026. This restriction applies regardless of how long ago you closed your previous account, whether you closed it voluntarily or due to inactivity, or whether you had a positive or negative experience with the platform. Interactive Investor's system cross-references your identity details (name, date of birth, address) against their historical customer database during the verification process, and if a match is found, your application will be rejected with a message indicating you are not eligible for the new-customer offer.
There is no appeal process or exception to this rule — if you are flagged as a previous customer, you cannot claim the referral offer under any circumstances. Your only option is to contact Interactive Investor support and ask whether they would consider a manual exception, but this is rarely granted. If you are uncertain whether you previously held an ii account (for example, if you opened an account years ago and have forgotten), you should contact Interactive Investor support before attempting to register, as a failed application will flag your identity in their system and may make it harder to resolve the issue later.
Joint Accounts and Company Accounts: Not Eligible
Interactive Investor's referral offer is only available for individual accounts held in the name of a single person, as verified by UseMyCode on 9 June 2026. If you wish to open a joint account with a spouse or partner, or if you wish to open an account in the name of a company, trust, or other legal entity, you are ineligible for the 6-month fee-free referral offer. Interactive Investor does offer joint account options for married couples or civil partners, but these accounts do not qualify for new-customer referral bonuses.
If you are one half of a married couple or civil partnership, you and your spouse can each open individual accounts and each claim the referral offer separately, provided you both meet all other eligibility criteria (i.e., you are both new customers, both aged 18+, both UK residents, and both deposit £5,000 within 12 months). However, you cannot open a single joint account and claim the offer — you must open two separate individual accounts. Similarly, if you are opening an account for a business, trust, or other legal entity, you are ineligible for the referral offer, and you should contact Interactive Investor to discuss alternative new-customer offers that may apply to business accounts.
Verification and Identity Checks: What to Expect
When you register for an Interactive Investor account via the referral link, you will be required to complete identity verification checks as part of the account opening process, as stated in the platform's terms verified by UseMyCode on 9 June 2026. These checks are mandatory under UK anti-money laundering (AML) and know-your-customer (KYC) regulations and are designed to prevent fraud and ensure that only eligible customers can open accounts. Interactive Investor will ask you to provide personal information including your full name, date of birth, UK residential address, email address, phone number, and bank account details (for deposit processing).
You will also be asked to provide proof of identity, typically via a UK driving licence, passport, or other government-issued ID document. Interactive Investor's verification system will cross-reference your provided information against your official ID to ensure accuracy and consistency. If there are discrepancies (for example, your middle name is spelled differently on your application form versus your ID, or your address is outdated), Interactive Investor may flag your account for manual review, which can delay activation by 1–2 weeks. To speed up the verification process, ensure that all information you provide during registration matches your official ID exactly, including spelling of names, middle initials, and current address.
Once your identity is verified and your account is activated (typically within 1–3 business days), you will receive a confirmation email from Interactive Investor. At this point, you can log into your account and proceed to deposit your £5,000. The verification process will also check whether you have previously held an Interactive Investor account — if a match is found in their historical database, your application will be rejected and you will be notified that you are not eligible for the new-customer offer.
Checking Your Eligibility Before You Apply
Before you click the referral link and begin the registration process, you should confirm that you meet all of the core eligibility criteria, as outlined by Interactive Investor's terms verified by UseMyCode on 9 June 2026. Ask yourself the following questions: (1) Am I a UK resident aged 18 or over? (2) Have I never previously held an Interactive Investor account? (3) Do I have at least £5,000 available to deposit within 12 months of opening my account? (4) Am I willing to keep my account within the Core or Plus price plan tier for the first 6 months? (5) Am I opening an individual account (not a joint account or company account)?
If you answer "yes" to all five questions, you are eligible to claim the referral offer. If you answer "no" to any question, you are ineligible, and you should not attempt to register, as doing so may result in a rejected application and could complicate any future attempt to open an Interactive Investor account. If you are uncertain about any of these criteria (for example, you are unsure whether you previously held an ii account), check your eligibility by contacting Interactive Investor support before applying.
What Happens If You Don't Meet the Eligibility Criteria
If you do not meet Interactive Investor's eligibility criteria for the referral offer, you have two options: (1) you can still open an Interactive Investor account and pay the standard monthly subscription fees from day 1 (typically £4.99–£19.99 per month depending on your chosen plan), or (2) you can explore alternative investment platforms that may offer different new-customer incentives or lower ongoing fees. Interactive Investor does not offer alternative new-customer bonuses for ineligible customers — the 6-month fee-free referral offer is their only new-customer acquisition incentive as of 9 June 2026.
If you are a previous Interactive Investor customer, you may be eligible for other promotions or loyalty offers that Interactive Investor runs from time to time — contact their support team to ask about any current offers for returning customers. If you are a non-UK resident or under 18, you are not eligible to open an Interactive Investor account at all, and you should explore investment platforms that serve your jurisdiction or age group. If you cannot deposit £5,000 within 12 months, you can still open an account and invest smaller amounts, but you will pay full monthly subscription fees from day 1 with no fee waiver.
About This Article
This article was written by the UseMyCode editorial team and last reviewed on 9 June 2026. UseMyCode independently verifies every referral link and discount code before publication. This page may contain affiliate links — see our editorial policy for details.
