Is transferring $ considered taxable income?

We have a credit line for the business, we typically use that and then we get to deduct the interest. However the rates are increasing so we wanted to know your thoughts on this:

If we transfer $ from a personal savings to the biz at the beginning of a month, as an example and then pay it back at the end of the month, is it considered taxable income when we return it to the personal account? We are sole proprietors. Just exploring other options than credit cards or credit lines and loans. Appreciate any feedback!