An NSF check is a check written on an account that has non-sufficient funds to cover the check. Banks may refuse to open a new account for you because they use a service called ChexSystems, which reports such activity. Lenders check with the Experian, Equifax and TransUnion credit bureaus, which do not directly report NSF checks, but your credit may still be affected indirectly. Credit Reports Your credit reports show all your current credit-related accounts and old accounts going back at least seven years. Entries include branded credit...