About Surplus Lines API

Our Mission

Surplus Lines API was created to solve a common problem in the insurance industry: the complexity of calculating surplus lines taxes across multiple states. Each state has its own tax rates, stamping fees, fire marshal taxes, and regulatory charges that change regularly.

We built a simple, accurate API that insurance professionals can integrate into their workflows, eliminating manual lookups and reducing errors in tax calculations.

Who We Are

Surplus Lines API is a product of Underwriters Technologies, a company focused on building practical software solutions for the insurance industry. We understand the challenges of surplus lines compliance because we've worked in the industry ourselves.

What We Offer

• Accurate Tax Data - We maintain a comprehensive database of surplus lines tax rates for all 50 states, DC, Puerto Rico, and the US Virgin Islands.
• Real-Time Updates - When states change their rates, we update our database promptly so you always calculate with current data.
• Simple API - Our REST API is designed to be easy to integrate. Send a state and premium, get back a complete tax breakdown.
• Compliance Support - Every calculation includes references to legislative sources so you can verify rates and document compliance.

Our Commitment

We're committed to providing accurate, reliable data at a fair price. Our pay-as-you-go pricing means you only pay for what you use, with no long-term contracts or hidden fees.

Have questions? Contact us - we're happy to help.