Instant Billing is an add-in product for Instant Quote Professional. Instant Billing is a billing tool for quickly generating recurring invoices (bills). Supports finance charges, late fees and flexible billing cycles by customer. Instant Billing is an add-in product for Instant Quote Professional. Instant Billing is a billing tool for quickly generating recurring invoices (bills). Instant Billing attaches to your existing customer data from Instant Quote Professional. You can then create billing records for your customers and then simply run a batch billing process that will automatically generate the invoices that are due. You can add finance charges for past due balances and late fees for late payments. You can choose to e-mail or print your invoice for each customer. Billing Templates allow you to setup recurring billing for items such as internet service, weekly property maintenance, monthly service contracts, or any items that are billed on a recurring basis.