OverSuite is a compliance-focused software service that helps accountants and bookkeepers create and manage client engagement letters. Its Smart Engagement Letters are designed to evolve with regulatory changes and update automatically, helping firms reduce risk and maintain high compliance standards. A guided setup enables users to build a suite of letters in around 10 minutes, while built-in guidance and more than 60 service schedules support the preparation of engagements for different services. The letters help firms set clear expectations with clients and support professional, transparent relationships.

OverSuite offers monthly subscription plans with allowances of 15, 30 or unlimited Smart Engagement Letters, and customers can upgrade, downgrade or cancel at any time. The company also provides product demonstrations, a free trial, help and support resources, and integration options including GoCardless, Senta, Intuit Accountancy Manager and Karbon. Its website features compliance reviews and practical articles on engagement letters, regulatory updates and common mistakes, giving accounting businesses additional guidance alongside the software.