The Coin is the main currency of Club Penguin. You get 500 coins when you create an account on Club Penguin. Fluffy the Fish is engraved on each coin, as well as the numeral one. They can be obtained through mini-games, competitions, codes, and salaries. Coins, along with tickets and EPF Medals, are the only currencies in Club Penguin. The maximum amount allowed is 1 million coins.
 Games and real-life items
Coins are earned by playing single or multiplayer games. Almost every game provides you with coins after playing it. You can also earn coins by unlocking books or codes or digging at the Cave Mine. In Club Penguin: Elite Penguin Force and its sequel, you can use Nintendo W-Fi Connection to upload your coins that you made playing one of the mini-games, clicking on an animated object or doing missions. You can upload up to 2000 coins each time. You can use the real life Club Penguin Books to not only unlock the book but also to give you coins. The first time you use it and it gives you 1500 coins and the book. However, use it more times and it gives you 2000 coins.
 Salary for special roles
See main page: Salary
Being a tour guide or an EPF Agent will earn you 250 coins or 350 coins (respectively) automatically (for each "job") every month. The 'paycheck' is sent to these penguins via postcard monthly. This started on May 1, 2009.
Players can use coins to buy colors, puffles, puffle supplies, clothing, Igloo Upgrades, furniture, and player card backgrounds. Coins can also be used to send postcards. However, non members are only allowed limited use of their coins:
- Buying colors for their penguin.
- Buying player card backgrounds.
- Buying Red & Blue Puffles.
- Sending postcards.
- Food & bathing supplies for puffles.
- Donation for the certain events, such as Coins for Change or Lighthouse Donation.
 "Ten" coin
A "ten" coin is shaped like a normal Club Penguin coin but is worth 10 coins. It is also larger than a normal coin. It is found only in the game Jet Pack Adventure and when you dig for coins in the Cave Mine. It may be a feasible hypothesis to make judgement that "Ten" coins are merely an item which can be traded for ten coins rather than a currency in itself.
 Coins for Change
In December 2007, 2008, 2009, 2010, 2011 and 2012 there was a Coins for Change program. In the end, more than 2.5 million penguins donated in excess of 2 billion virtual coins they earned playing games on Club Penguin to support the environment, children's health or children in developing countries. Through their virtual donations, the kids directed how much of a $1 million cash donation went to three charitable organizations.
- When starting an account on Club Penguin, players used to get 100 coins, but when the Major Interface & Communications update was released it was changed to 500 coins.
- During the Club Penguin Improvement Project, players would start out with 20,000 coins.
- In one of the newspapers, Aunt Arctic says that the coins in Jetpack Adventure stay afloat with a coated alloy made by Gary.
- If you buy Club Penguin: Elite Penguin Force, it will give you code that you can enter in the online Club Penguin. It gives you 1500 coins, and it used to give a Spy Phone (if you're not already an agent) and allowed you to enter the Command Room.
- In the St. Patrick's Day Party 2009, there was a pin, which was a coin with a four leaf clover on it, or, a "lucky coin".
- If your comment you placed in the Reviewed by You section of the What's New Blog was chosen, you would receive 10,000 coins.
- Many penguins have money makers to use unfair ways to gain coins, however, this is against the Club Penguin rules and may get you banned.
- If you have obtained all of the stamps in a game, you get double coins.
- If you go to "Unlock Items Online" and put the code DECNLR10, you will get 500 coins. This coin code was released in December 2010 in the Parent Newsletter.
- JUNNLR11 is also a code that will allow you to get 500 coins. This coin code was released in June 2011 in the Parent Newsletter.
- You could get 10,000 coins if you called or emailed Club Penguin during the Domain Failure.
- One penguin got 100000 coins by winning the Craaazy Igloo Contest in April 2012.