Invoice payments showing as account receivable

Hi

i have a client who is cash basis and sent a client an invoice, and received a check for the invoices. When marking the invoices as paid and matching the check deposit to the invoice, it automatically shows as account receivable on the profit and loss statement. I understand why it’s going to accounts receivable but I’m not sure why it’s staying there and how to move it to service income. Because the client is cash based they technically are supposed to have the accounts receivable but because they sent invoices it automatically routes the payments there and I’m not sure how to change it. When matching the deposit to the invoice the client list his bank account and service income but for some reason it just stays under accounts receivable