Bells (ベル Beru?) are the currency used in the Animal Crossing series. Their main use is to purchase items from Nook's and Crazy Redd's as well as from villagers, Gracie, the Able Sisters, and Brewster. Bells also serve as payment for services from Harriet, Katrina and Tom Nook's house renovations among other things.
Bells are stored separately from other items in the player's wallet, though bells from trees, shiny spots, and Money Rocks initially appear as and must be picked up and moved to the wallet manually. Inventory bells can be picked up and stacked as long as the combined value does not exceed 99,000 bells. However, bell denominations under 1,000 cannot be stacked on denominations over 1,000 (for instance, 500 cannot be combined with 2,000).
In Animal Crossing: New Leaf, hitting the rock with the Silver Shovel will rarely cause the bell rock to produce ores instead of bells, which can be used to refurbish furniture at Re-Tail or sold for a large sum of bells. Another technique employed by players to obtain bells in Animal Crossing: New Leaf, is to go to the island during night. The player may catch bugs worth 8,000 - 12,000 bells to sell on the Re-Tail.
At animal's birthday parties in the new version of Animal Crossing: New Leaf, the animal may ask for a present, preferably wrapped. If the player gives them bells, they will say something like, "What?! A bunch of bells!? Oh no, I can't accept this. I will feel this will make our friendship weird. Please, take it back." If wrapped, the bells will stay wrapped in the pockets when the animal gives back his/her present. If the animal is talked to again, they may ask again if a gift was brought. Although if the party left, the villager will assume the player is leaving the party forever, and say such as "What? You're leaving the party already. Well, I'll always remember this birthday forever." even though the party may be re-entered anytime.