Does discover do a hard pull for credit limit increase

You Applied for a New Line of Credit: Applying for a new line of credit and requesting a credit limit increase can both result in a hard inquiry. Multiple hard inquiries may negatively impact your credit score and potentially show financial hardship.

You might also see a temporary dip in your credit score following a credit limit increase. That's because a hard credit inquiry could be triggered to ensure you meet the standards to receive a higher limit.

Discover may pull from any of three major credit bureaus: Experian, Equifax and TransUnion, but it appears based on consumer-reported data the bank leans heavily on Equifax to source many credit reports, followed by Experian and TransUnion.

If your income is too low by the credit card issuer's standards, your credit limit increase request may be denied. Already had a limit increase recently: Don't expect to get back-to-back credit limit increases. It's best to wait at least six months before requesting another credit limit increase.