The State of New Jersey is seeking a Software as a Service (SaaS) solution for web-based payroll tax collection and reporting. The selected vendor will provide an online platform that enables both taxpayers and tax collections staff to register, with options for entering data from printed or mailed forms. The system must adhere to strict payment application rules, ensuring payments are first applied to interest due, then to the principal tax amount.

Key requirements include comprehensive reporting capabilities, allowing users to generate and download reports detailing payments over various time periods and by taxpayer. The software should offer outputs in formats such as Excel spreadsheets and PDFs, provide analytics on financial trends, and facilitate comparisons of payment data over time. Additionally, the solution must support the creation and distribution of a variety of official mailings, including reminders for unpaid taxes, notices for unpaid interest, information requests, and audit notifications.

The platform must feature robust audit trail functionality, tracking all user activities such as data entry, edits, deletions, and payment processing by user ID. Audit trail reporting should be available for both internal staff and external taxpayer users, ensuring transparency and accountability throughout the system.