# Funding your smart wallet

Now that you have USDC on xDAI, you must fund your smart wallet. 

APEX can only spend funds available on your smart wallet. If you create orders which require 1000 USDC as collateral, but only have 100 USDC on your smart wallet, your orders will fail. 

To fund your wallet click the deposit button on the top right. 

![](/files/-MXYmXVETUMKrLtwDCNs)

Once you have done so, a pop up will appear where you can decide on the sum you will deposit on the smart wallet. 

![](/files/-MXYkdvTuk6NR6oj5lnQ)

Once you decide on the amount, submit the transaction using your wallet. 

![](/files/-MXYl-qqK6aeZMDJtbVa)

Your balance should now be updated to the new amount. 


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