There is no Bank account for the SEP; you don't track the SEP in the business accounting. The SEP is a Personal account.

A business establishes the Plan, which means, intends to comply with the Regulations. The Funds are contributed to the Brokerage account owned by the Employee.

You do not track the SEP in the Business. You would already be entering the payroll and banking events as the Spending. You don't track changes in the SEP account in the business, because that does not belong to the business.