An example credit line adjustment system includes: at least one processor; and memory encoding instructions that, when executed by the at least one processor, causes the at least one processor to generate a graphical user interface including: a first section identifying a first credit line owned by a user, the first section providing a first credit limit amount for the first credit line, and the first section including a first control that receives input from the user to manipulate the first credit line; a second section identifying a second credit line, the second section including a second control that receives input to transfer at least a portion of the first credit line to the second credit line.