Historically, the rule of thumb is that refinancing is a good idea if you can reduce your interest rate by at least 2%. However, many lenders say 1% savings is enough of an incentive to refinance. Using a mortgage calculator is a good resource to budget some of the costs.
Does refinancing hurt your credit?
Whenever you refinance a loan, your credit score will decline temporarily, not only because of the hard inquiry on your credit report, but also because you are taking on a new loan and haven't yet proven your ability to repay it.
Is it better to refinance sooner or later?
Why Should I Refinance My Mortgage? Refinancing can allow you to change the terms of your mortgage to secure a lower monthly payment, switch your loan terms, consolidate debt or even take some cash from your home's equity to put toward bills or renovations.