Indiana Code Title 26. Commercial Law § 26-1-1-108.1

Sec. 108.1. (a) The secretary of state may provide that a document required to be filed under this article with the secretary of state may be filed by electronic transmission meeting the requirements established by the secretary of state.

(b) The secretary of state may accept payment of a filing fee for a document filed by electronic transmission by credit card, debit card, charge card, or similar method.  However, if the filing fee is paid by credit card, debit card, charge card, or similar method, the liability is not finally discharged until the secretary of state receives payment or credit from the institution responsible for making the payment or credit.

(c) The secretary of state may contract with a bank or credit card vendor for acceptance of bank or credit cards.  However, if there is a vendor transaction charge or discount fee, whether billed to the secretary of state or charged directly to the secretary of state's account, the secretary of state or the credit card vendor may collect from the person using the bank or credit card a fee that may not exceed the highest transaction charge or discount fee charged to the secretary of state by the bank or credit card vendor during the most recent collection period.  The fee may be collected regardless of any agreement between the bank and a credit card vendor or regardless of any internal policy of the credit card vendor that may prohibit this type of fee.  The fee is a permitted additional charge under IC 24-4.5-3-202.