NEW YORK — Wells Fargo plans to test a $3 monthly fee for its debit cards starting this fall. The San Francisco-based bank said the fee will be applied to checking accounts opened in five states starting in October. The fee would be in addition to monthly service fees ranging from $5 to $30 that Wells Fargo already charges.

Although it’s unusual, Wells Fargo isn’t the first major bank to test whether customers will be willing to pay to use their debit cards. Chase last year also began testing a $3 monthly debit card fee in northern Wisconsin.