This guide breaks down exactly where to find the referral code field on the IBKR signup page, how to apply it, and what happens if you forget to enter it before hitting submit.
About this guide: I'm Lawrence, the writer behind supa.is. Between February and May 2026 I've published 150+ articles on supa.is across crypto and brokerage tooling — including 30+ IBKR-specific guides (recent examples: IBKR Account Setup, IBKR Referral Program, IBKR $1,000 Bonus). The most-repeated reader question across that IBKR archive is exactly where to type the referral code during signup, which is why I'm publishing this standardized guide instead of answering one-off.
Why You Need an IBKR Referral Code
Here's the deal: Interactive Brokers doesn't offer a massive, front-and-center welcome bonus for every single new user. Instead, their referral program is designed to reward both the referrer and the referee based on specific actions.
Using a code links your account to a referrer, which triggers the bonus. Depending on the active program, you can get:
* Cash bonuses for depositing a certain amount of funds. * Stock bonuses (up to $1,000 in IBKR stock) based on your deposit tier. * Fee discounts or waived commissions for your first few trades.If you skip the referral code field, your account is created as a standard organic acquisition. You will still get the full IBKR trading experience, but you will miss out on the bonus triggers. Once your account is created, you cannot retroactively add a referral code. The field is only visible during the initial application.
Where to Find the Referral Code Field
The location of the referral code field depends on how you start the signup process. Here is the breakdown of the current IBKR signup flow as of mid-2026.
Method 1: Using a Direct Referral Link (Easiest)
The absolute easiest way to ensure the referral code is applied is to start your signup through a direct referral link. When you click a link like the one below, the code is automatically embedded in the URL.
Sign up on Interactive BrokersWhen you click this link, IBKR's website recognizes the referral parameter in the URL and automatically populates the referral code field in the background. You don't even have to look for the field.
If you use this method, you can proceed to the next section to see what happens on the actual form.
Method 2: Finding the Field on the Signup Form
If you navigate to the Interactive Brokers homepage directly and click "Sign Up," you will be taken to the standard application form. Here is where the referral code field is located:
- Start the Application: Click the "Sign Up" button on the IBKR homepage.
- Personal Information Step: You will be asked for your name, address, and contact details. Fill in the required fields.
- Account Type Selection: You will choose between Individual, Joint, or Corporate accounts.
- The Referral Code Box: Right after you select your account type, and before you enter your initial deposit preferences, there is a section labeled "Account Preferences" or "Referral Information." The field is usually a simple text box labeled "Referral Code" or "Referral ID."
Step-by-Step: How to Apply the IBKR Referral Code
To make sure you don't miss the step, follow this exact sequence:
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Sign up on Interactive Brokers →What Happens If You Forget the Referral Code?
This is the most common question I get. Can you add it later?
The short answer is no. Interactive Brokers does not allow you to edit the referral code after the account has been created. The referral code is bound to the account at the moment of creation.
If you realize you forgot the code after submitting your application, you have a few options:
Option 1: Cancel and Start Over If your application has not yet been approved by IBKR's compliance team, you can sometimes cancel the application from your IBKR portal. You would then have to start the entire process over, which means re-entering all your personal and financial information. This is time-consuming and not recommended unless you are absolutely sure you will hit a high deposit tier. Option 2: Contact Support (Unlikely to Work) You can try reaching out to IBKR customer support via chat or email to ask them to add the referral code retroactively. In my experience, support will tell you that the system does not allow this. They will politely decline the request. Option 3: Open a Second Account Interactive Brokers allows you to have multiple accounts (e.g., an Individual account and a Margin account). You could create a new account specifically to utilize the referral code. However, you would need to transfer funds between your accounts, and you would still have the original account without the bonus.Understanding the IBKR Referral Bonus Tiers
Once you have successfully applied the referral code, check the current official IBKR Refer a Friend terms before depositing. The program rules and eligibility can change by jurisdiction and account type.
The current official terms describe the reward this way:
| Item | Current published terms |
|---|---|
| Referred client reward | $1 of IBKR stock for each $300 deposited, up to $1,000, subject to eligibility and the current award period. |
| Referrer requirement | The referrer-side reward requires the referred client to open through the unique link, deposit at least $10,000 within 30 days, and maintain that amount for one year. |
| Availability | Terms, jurisdictions, account types, and award periods can change; verify the official terms before relying on a reward. |
Additionally, the bonus is paid out in IBKR stock (NASDAQ: IBKR), not cash. This means the value of your bonus will fluctuate based on the stock market. If you receive $1,000 worth of IBKR stock, and the stock drops 10% the next day, your bonus is now worth $900.
Common Mistakes When Applying the Code
Over the years, I have seen many traders make simple mistakes that cost them their bonus. Here are the most common pitfalls:
1. Using an Expired Code Referral codes are not always permanent. Some codes are tied to specific campaigns or time-limited promotions. If you find a referral code on an old forum post from 2022, it might no longer be active. Always use a code from a current, verified source. 2. Typographical Errors The referral code field is case-sensitive and does not allow spaces. If the code isliu460, typing Liu 460 or liu460 (with a space at the end) will result in an invalid code. Double-check your spelling before submitting.
3. Depositing After 30 Days
This is the biggest mistake. For the current referrer-side requirement, the $10,000 deposit must arrive within the 30-day window and remain there for the required period. Check the official terms for the exact rule that applies to your account.
4. Assuming All Accounts Qualify
Some account types, such as certain corporate or trust accounts, may not be eligible for the standard retail referral bonus. If you are opening a specialized account type, read the terms and conditions carefully.
Is the IBKR Referral Bonus Worth It?
For most traders, the answer is yes, but with realistic expectations.
If you are planning to deposit $10,000 or more anyway, there is absolutely no reason not to use a referral code. It's free money (in the form of stock) for doing something you were going to do anyway.
If you deposit less than $10,000, do not assume that you qualify for the maximum reward. The stock amount and eligibility depend on the current program terms and the applicable award period; verify them before making a deposit.
Let's be real: the bonus isn't why you'll keep an IBKR account. You'll stay for the global market access and low margin rates. The bonus is just a nice cherry on top.
FAQ
Can I add an IBKR referral code after I have already opened my account?
No. The referral code field is only available during the initial account application process. Once the account is created, you cannot retroactively add a referral code.How long do I have to deposit funds to get the IBKR referral bonus?
The current 30-day deposit requirement applies to the referrer-side reward described in the official terms. The referred-client award can have separate conditions, so verify the current program page for your jurisdiction.What happens if I deposit less than $10,000?
A deposit below $10,000 does not qualify for the maximum reward described in the current terms. The amount and eligibility for any smaller stock award depend on the current program rules and award period.Does the referral code cost me anything extra?
No. Using a referral code does not increase your trading fees or account maintenance fees. The referrer receives a commission, but this is paid out of IBKR's marketing budget, not your account.Can I use multiple referral codes on one account?
No. You can only use one referral code per account. The code is tied to the account at the moment of creation and cannot be changed.Risk Warning
Risk Warning: Trading stocks, options, futures, and forex involves substantial risk of loss and is not suitable for all investors. The value of your investments can fluctuate, and you may lose more than your initial deposit. The IBKR referral bonus is paid in IBKR stock, which is subject to market risk. Never invest more than you can afford to lose. This is not financial advice.