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List of Cryptocurrency Referral Codes and Invitation Codes! Recommended Crypto Exchange Rankings and Benefit Comparisons

2026年5月1日 09:47

If you are opening a cryptocurrency (crypto asset) account, you can get Bitcoin or cash for free just by using a referral code or invitation code.

Some exchanges do not require deposits or trading, allowing you to start with zero risk.
If you register directly from the official website, you will not be eligible for the benefits, so please be sure to proceed using the links in this article.

Conclusion | List of Referral and Invitation Codes You Can Get Right Now

To prevent input errors, please be sure to use copy and paste to enter the code.
The most common cause of failure is confusing the letter 'O' with the number '0'.

bitFlyer | Benefit: 1,500 JPY worth of BTC | Condition: Identity verification completion only, no deposit required

▶ Register for bitFlyer (invitation code applied automatically)
*Valid for registration via the smartphone app. If it is not entered automatically, please copy and paste the code below.

2i52wyah

Coincheck | Benefit: Usually 1,500 JPY worth, 2,500 JPY worth during campaigns (as of research) | Condition: Identity verification completion only, no deposit required

▶ Register for Coincheck (benefits applied automatically)
*Benefits are applied automatically just by registering via the link above. There is no code entry field.

BitTrade | Benefit: Up to 2,000 JPY worth of BTC (1,000 JPY for account opening + 1,000 JPY for meeting exchange trading conditions) | Condition: Identity verification completion + trade 50,000 JPY or more at the exchange within 30 days

▶ Register for BitTrade (referral code applied automatically)
*If it is not entered automatically, please copy and paste the code below into the 'Invitation Code' field.

nh56B

OKJ (OKCoin Japan) | Benefit: Granted upon meeting conditions (please check the official page) | Condition: Account opening + 20,000 JPY or more in trades within 90 days

▶ Register for OKJ (referral code applied automatically)
*If it is not entered automatically, please copy and paste the code below into the 'Invitation Code' field.

67D9E87

CoinTrade | Benefit: ETH (Ethereum) granted (please check the official page for details) | Condition: New registration via link

▶ Register for CoinTrade (link applied automatically)
*There is no referral code; benefits are applied solely by registering via the link.

SBI VC Trade | Benefit: 1,000 JPY in cash | Condition: Referral code entry + account opening completion

▶ Go to the SBI VC Trade account opening page (eligible for 1,000 JPY cash benefit)
*Proceed with registration from the URL above and enter 'g4p1h' in the referral code entry field. *If it is not entered automatically, please enter it manually.

GMO Coin | Referral code/friend referral program is not currently being implemented (as of research)

[Comparison] Recommended Cryptocurrency Exchange Referral and Invitation Code Rankings

We compared 'which one is the most advantageous after all' based on four criteria: beginner-friendly, no trading required, cash rewards, and maximum benefits (as of research).

1st Place: bitFlyer | Guaranteed to receive without deposit or trading

Just by registering and completing identity verificationeveryone receives 1,500 yen worth of BTC.
Since no deposit or trading is required at all,this is most recommended for those new to cryptocurrencyas well.

2nd Place: Coincheck | Crypto assets received without needing to enter a code

By registering via a referrallinkonly, you receive 1,500 yen worth of crypto assets normally, or 2,500 yen worth during campaigns (as of the time of research).
Since there is no code entry field, another advantage is thatthere is no worry about input errors.

3rd Place: SBI VC Trade | 1,000 yen in cash instead of crypto assets

Because the benefit isJapanese yen that can be used as is, there is no hassle of converting it.
However, you need to receive the referral code directly from an acquaintance, so the hurdle for obtaining it is slightly higher.

4th Place: BitTrade | Up to 2,000 yen worth including trading conditions

You get 1,000 yen worth just for opening an account, and if youtrade 50,000 yen or more at the exchange, an additional 1,000 yen worth is added.
This is one of the largest benefits for those planning to trade.

5th Place: OKJ | Benefits earned with a contract of 20,000 yen or more

While there is a sense of security as a Financial Services Agency-registered operator,a trade of 20,000 yen or more is a condition, so the difficulty is higher than bitFlyer or Coincheck.

6th Place: CoinTrade | Link-type where you receive ETH

No referral code is needed; ETH is granted just by registering from the link.
Please check the official page for details on the benefits.

At a glance | Summary of benefits and conditions for each crypto exchange

Since tables cannot be used in notes, I have organized them into bullet points for easier comparison.

bitFlyer
Benefit: 1,500 yen worth of BTC / Deposit: Not required / Trade: Not required / Reflection: Within 24 hours after identity verification is complete (as of research) / Format: Invitation code (automatically entered via link)

Coincheck
Benefit: Normally 1,500 yen worth, 2,500 yen worth during increases (as of research) / Deposit: Not required / Trade: Not required / Reflection: Immediately to several days after identity verification is complete (as of research) / Format: Referral link (no code entry field)

BitTrade
Benefit: Up to 2,000 yen worth of BTC / Deposit: Not required / Trade: 50,000 yen or more required at the exchange / Reflection: The afternoon of the day after condition confirmation (as of research) / Format: Referral code (automatically entered via link)

OKJ
Benefit: Granted upon meeting conditions / Deposit: Not required (trading is required) / Trade: A contract of 20,000 yen or more is required / Reflection: By around 16:00 the day after condition confirmation / Format: Hybrid of referral code and referral URL

SBI VC Trade
Benefit: 1,000 yen in cash / Deposit: Not required / Trade: Not required / Reflection: By the end of the month following the month of account opening completion / Format: Referral code (manual entry, non-public)

CoinTrade
Benefit: ETH granted (check official page for details) / Deposit: Not required / Trade: Not required / Reflection: Check official page / Format: Referral link only (no code)

What are cryptocurrency referral codes and invitation codes?

A referral code or invitation code is a code distributed to new registrants by someone who is already using that exchange.

When you enter this code during new registration, or register via a link containing the code, the referred party is granted benefits such as Bitcoin or cash.

Why is it given away for free?

Exchanges spend advertising money to acquire new users.
The referral program is a mechanism that returns a portion of advertising costs to both the referrer and the referee.
Therefore, compared to registering directly from the official website, registering via a referral code simply means getting extra benefits for the same amount of effort.

A mechanism where the referrer also receives a reward

At many exchanges, the person who made the referral is also paid a reward in cash or cryptocurrency.
Because there are benefits for both parties, referral codes are widely shared on social media and blogs.

It is not a suspicious system

The referral program is a campaign officially provided by the exchange itself.
Even if you enter the code, your personal information such as your name, address, or transaction details will not be shared with the referrer.

Difference between referral codes and referral links

I will clarify this point as it is frequently searched.

Code Entry Type
This is a type where you manually enter an alphanumeric code into the "invitation code" field in an app or application form.
bitFlyer, BitTrade, SBI VC Trade, etc., fall into this category.

Link Type (Automatic Application Type)
This is a type where benefits are automatically linked without entering a code just by registering from a dedicated URL.
Coincheck, CoinTrade, etc., fall into this category.

Hybrid Type
This is a type where the code is automatically entered via a link, but can also be handled by manual entry if it is not reflected.
BitTrade, OKJ, etc., are close to this format; they recommend accessing via a link while also supporting code entry.

Regardless of the format, the referral code itself and the referral link itself are the same. It is fine to think of it as just a difference in the entry method.

Are referral codes suspicious? Are they safe?

This is the point that concerns those starting with cryptocurrency for the first time the most.

Only introducing businesses registered with the Financial Services Agency
bitFlyer, Coincheck, BitTrade, OKJ, and SBI VC Trade introduced in this article are all registered with the Financial Services Agency as crypto asset exchange businesses.

Campaigns prepared by the official
Referral codes and invitation codes are campaigns officially operated by each exchange and are not unofficial, fraudulent schemes.

No personal information is shared at all
Even if you use a referral code, the only thing communicated to the referrer is a notification that "a benefit has been granted."
Personal information such as your name, address, or transaction history is never shared.

There is no cost at all
There is no cost burden on the user for entering a code or registering via a link.

Registering directly from the official website will make you ineligible for bonuses.

This is the most important point to note.

If you register directly from the official website without using a referral code or referral link, you will not receive any bonuses.
The effort required to open an account is exactly the same, so please be sure to register via a referral link or by entering a code.

Check before registering | 5 cases where you cannot receive crypto exchange referral bonuses

If you make the following mistakes, you will not be able to receive bonuses even if you register.

Case 1: Tried to enter the code after opening the account
For many exchanges such as bitFlyer, Coincheck, and BitTrade, referral codes and invitation codes can only be entered at the time of account opening. It is too late if you notice it after opening the account.

Case 2: Registered for bitFlyer from a PC web browser
For bitFlyer, only registration via the smartphone app is eligible for the invitation program. Please download the iOS or Android app before registering.

Case 3: Stopped the identity verification process halfway
Bonuses will not be granted unless identity verification is completed. For many exchanges, the condition is to complete identity verification within 90 days of registration.

Case 4: Made a mistake by manually typing the code on the keyboard
Codes containing a mix of letters and numbers, such as `2i52wyah`, are easy to confuse between 'O' and '0'. Please copy and paste the code.

Case 5: Tried to meet the BitTrade transaction conditions at the 'Exchange'
Additional bonuses for BitTrade are only eligible for transactions at the 'Sales Office' (Marketplace). Purchases at the 'Exchange' (board trading) do not count toward the conditions.

Details and registration procedures for each exchange

bitFlyer | Invitation code to get 1,500 yen worth of BTC without a deposit

Operating Company & Reliability
Operated by bitFlyer, Inc., and registered with the Financial Services Agency as a crypto asset exchange operator. It has a track record of
being No. 1 in Bitcoin trading volume for 6 consecutive years (as of the survey time), and the fact that there has never been a hacking incident since its founding is also a reassuring factor.

Features
Everyone who opens an account using an invitation code and completes identity verification will receive 1,500 yen worth of Bitcoin. No deposit or trading is required at all.

Pros
・Zero risk as no deposit or trading is required
・High liquidity with one of the largest trading volumes in Japan
・Simple app operation, suitable for beginners

Cons
・Only registration via the smartphone app is eligible (PC web is not eligible)
・Invitation code can only be entered at the time of account opening and cannot be added later
・Since the received bonus is in BTC, there is a risk of price fluctuation

Recommended for
Those who are new to cryptocurrency and those who want to receive bonuses without any risk first

STEP 1: Download the smartphone app

▶ Register for bitFlyer (Invitation code applied automatically)
*If it is not entered automatically, please copy and paste the code below into the 'Invitation Code' field

2i52wyah

STEP 2: Register your email address
Open the app, tap 'Create Account', and register your email address. Just enter the confirmation code you received, and follow the instructions; there is no special work required.

STEP 3: Check the referral code
A "Referral Code" input field will appear on the password setup screen. It is often filled in automatically, but please be sure to check it.

STEP 4: Complete identity verification
Simply proceed with the quick identity verification on your smartphone. Bitcoin will be automatically granted within 24 hours (around 9:00 AM) of completion (as of the time of research).

Coincheck | A major exchange where you can get crypto assets with a referral code

Operating Company & Reliability
Operated by Coincheck, Inc., a subsidiary of Monex Group, Inc., and is a crypto asset exchange registered with the Financial Services Agency.
Boasts one of the largest numbers of listed assets in Japan (as of the time of research).

Features
By registering as a new user via a referral link and completing identity verification, you can receive crypto assets worth 1,500 yen normally, or 2,500 yen during campaigns (as of the time of research). There is no code input field; it is applied automatically via the link.

Pros
・Abundant number of listed assets, suitable for altcoin investment
・App is reputed to be easy to use
・Well-equipped with features like staking and lending

Cons
・Benefit amount varies depending on the campaign period
・Benefits may not be linked unless you use the dedicated URL
・Identity verification is mandatory, though no deposit or trading is required

Recommended for
Those who want to try many different assets, or those who want to use staking and lending

▶ Register for Coincheck (Benefits applied automatically)
* Benefits are applied automatically just by registering via the link above. There is no code input field.

BitTrade | Up to 2,000 yen worth of BTC with a referral code

Operating Company & Reliability
Operated by BitTrade Co., Ltd., and is a crypto asset exchange registered with the Financial Services Agency.
Boasts one of the largest numbers of listed assets in Japan, and is also characterized by the ease of purchasing from as little as 2 yen.

Features (Two-stage benefits)
1,000 yen worth of BTC is granted upon completion of account opening, and an additional 1,000 yen worth is added if you trade a total of 50,000 yen or more at the sales office within 30 days. The total is up to 2,000 yen worth (as of the time of research).

Pros
・Exchange fees are free
・Abundant selection of altcoins
・You can receive 1,000 yen worth just by opening an account

Cons
・The trading condition for the additional benefit applies only to the "Sales Office" (Exchange is excluded)
・The referral code can only be entered at the time of account opening and cannot be added later
・There is a spread cost for trading 50,000 yen worth

Recommended for
Those who want to trade many altcoins, or those planning to trade 50,000 yen or more at the sales office

▶ Register for BitTrade (Referral code applied automatically)
* If it is not entered automatically, please copy and paste the code below into the "Referral Code" field

nh56B

SBI VC Trade | Receive 1,000 yen in cash directly as Japanese yen

Operating Company/Reliability
Operated by SBI VC Trade Co., Ltd., this is a crypto asset exchange backed by the major securities group, SBI Group.

Features
Once you enter a referral code and complete your account opening, 1,000 JPY in cash is deposited directly into your account. Since it is not a crypto asset, there is no need to convert it.

Pros
・The benefit is in Japanese Yen from the start, so no conversion is needed
・Reliability unique to the SBI Group
・Supports lending (lending service)

Cons
・Publicly sharing referral codes on social media or the web is prohibited by official terms
・You must receive the code directly from an acquaintance, making it harder to obtain
・It may take up to the end of the following month for the benefit to be granted

Recommended for
Those who value the reliability of a major group and those who want to increase their assets through lending

▶ Go to the SBI VC Trade account opening page (eligible for the 1,000 JPY cash benefit)
*Please proceed with registration via the URL above and enter "g4p1h" in the referral code field

OKJ (OKCoin Japan) | Receive benefits by meeting trading conditions

Operating Company/Reliability
Operated by OKCoin Japan K.K., this is a crypto asset exchange registered with the Financial Services Agency as Kanto Local Finance Bureau No. 00020.

Features
After opening an account via a referral link, the benefit is granted once you complete a trade of 20,000 JPY or more within 90 days (via exchange, sales office, or recurring buy).

Pros
・Peace of mind as a legitimate exchange registered with the Financial Services Agency
・Flexibility to meet conditions via exchange, sales office, or recurring buy

Cons
・Requires a trade of 20,000 JPY or more, making it more difficult than bitFlyer or Coincheck
・Progress status is not visible to the referrer
・If you close your account before meeting the conditions, you will be ineligible

Recommended for
Those planning to trade 20,000 JPY or more and want to receive the benefit in one go

▶ Register for OKJ (referral code applied automatically)
*If it is not entered automatically, please copy and paste the code below into the "Invitation Code" field

67D9E87

CoinTrade | Receive ETH just by using the link

There is no referral code; ETH (Ethereum) is granted just by registering via a dedicated link. Please check the official page for details and conditions of the benefit (as of the time of research).

▶ Register for CoinTrade (link applied automatically)
*There is no referral code; the benefit is applied simply by registering via the link

GMO Coin | No referral code

GMO Coin does not have a friend referral program (as of the time of research). If you are considering opening an account, it is recommended to compare it with the referral links for bitFlyer or BitTrade.

Which exchange should you start with?

First, it is recommended to start with exchanges that require no deposit or trading and have zero risk for you.

・bitFlyer → 1,500 JPY worth of BTC (ID verification only, no deposit required, app registration mandatory)
・Coincheck → Usually 1,500 JPY worth, 2,500 JPY worth during campaigns (ID verification only, no deposit required, as of the time of research)

After that, it is efficient to aim for the conditional benefits of BitTrade or OKJ once you start trading.
The 1,000 JPY cash from SBI VC Trade can be received as Japanese Yen, so there is no hassle of converting it.

▶ Register for bitFlyer (Referral code applied automatically)
*If it is not entered automatically, please copy and paste the code below into the "Referral Code" field.

2i52wyah

Common questions about cryptocurrency referral codes

Q. If I use a referral or invitation code, will my personal information be shared with the referrer?
No, it will not. The only notification the referrer receives is that "a benefit has been granted," and they are not informed of your name, address, or trading details at all.

Q. Can I enter the code after opening an account?
Most exchanges do not support this. For bitFlyer, Coincheck, and BitTrade, only entry at the time of registration is valid, so please have the code ready before registering.

Q. Does registering via a referral link automatically make me eligible for the benefits?
For Coincheck and CoinTrade, registration via the link alone makes you eligible. For bitFlyer, BitTrade, and OKJ, it is safer to check the code entry status in addition to the link.

Q. Can I use referral or invitation codes for multiple exchanges at the same time?
Yes, you can. Since you can register with different codes for each exchange, there are no restrictions on having multiple accounts.

Summary | Checklist for receiving benefits with cryptocurrency exchange referral codes

Before registration
・Copy the referral link/code for the exchange you want to use in advance
・Confirm that you will use the smartphone app for bitFlyer

During registration
・Check if the invitation code is automatically entered in the code field
・If it is not entered automatically, copy and paste it manually

After registration
・Complete ID verification within 90 days
・Fulfill additional trading conditions for BitTrade or OKJ within the deadline

Invitation codes cannot be entered after opening an account.
Please have the necessary code copied and ready before launching the app.