Your credit score may take a dip in the process, but it can recover and it's normal. A temporary credit hit is likely to be outweighed by the financial gain of a home loan refinance. When you apply for a new loan lenders will check your credit history to see if you are a risky buyer. This is called a ‘hard inquiry’. It shows up on your credit report and too many hits can temporarily cause your credit score to drop. To avoid too many credit inquiries, shop around for the best deals before you apply for a home loan.