How to get a good interest for HELOC

[Raymond Macasaet]

Hi! BP community! I was wondering how to get a good interest on HELOC? I am debating if I apply now or wait for a few more months to get a better interest rate. I currently have 3.75 on my mortgage rate but If I would get a on HELOC on this Bank my APR would go up to 4.1 percent. Does your credit score make a difference when getting a good APR? Would this be worth buying another property for a higher APR rate on my house? My intent is to use this money purchase a rental property in Las Vegas( either buying a turn key home or even fixer upper). Thank you in advance for your help!