Where are credit notes for prompt payment discounts recorded?

Credit notes for prompt payment discounts are recorded in the discounts allowed daybook. This is because the discounts allowed daybook is specifically used to track any trade discounts or cash discounts that have been granted to customers when they settle their invoices promptly. Recording these transactions here helps businesses accurately reflect the reductions in revenue that occur when discounts are applied, ensuring that financial records give a true representation of sales income.

By using the discounts allowed daybook, businesses can also gather information for financial reporting purposes, allowing for better management of cash flow and profitability analysis. The other options do not serve the same specific purpose, as the invoice book records issued invoices, the sales ledger contains accounts receivable details, and cash flow statements summarize the inflows and outflows of cash rather than specific transaction adjustments for discounts.