Legal Thunder

Easy to Use Family Law Software

Whether you are a seasoned legal professional or have no legal background, our software is designed for you.

Features

Child Support Calculator

Our user-friendly child support calculator for Colorado is available now.
Updates to the calculation to reflect the change in law scheduled for March 2026 will be available soon!

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Spousal Support Calculator

Our user-friendly spousal support calculator for Colorado is available now.

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Case Dashboard

Keep track of multiple calculations, notes, dates, and deadlines on a dedicated dashboard for each case, whether you’re working on your own case or on your clients’.

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PDF Exports

Export child support worksheets and spousal support worksheets in PDF format with case and court details filled into the case caption. Export your interest calculations in PDF format for submission as exhibits.

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Knowledge Base

Our Knowledge Base provides a glossary of common legal terms, informational articles about family law, calculation guides, and other legal resources to assist in the navigation of family cases in Colorado’s court system.

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Free Calculators

Try our introductory calculators for interest on back child support or back spousal support.

Child Support Interest Calculator

Interest on past-due child support can grow quickly and significantly. Our free child support interest calculator helps you add up how much child support is past due and applies Colorado’s statutory interest rate for child support debts to those past due payments. See total amounts due, total amounts paid, interest accrued, and total arrears with and without interest. Subscribe to save and export your interest calculations.

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Spousal Maintenance Interest Calculator

Our free spousal maintenance interest calculator applies Colorado’s statutory interest rate for spousal support or spousal maintenance debts. Enter payments due and payments made, individually or in groups, to quickly determine total amounts due, total amounts paid, interest accrued, and total arrears with and without interest. Register to save and export your interest calculations.

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Representing yourself?

Our PREMIUM subscription is designed for anyone representing themselves in family court.

Access child support and spousal support calculators.
Export calculations in PDF format with case captions.
Track case details, notes, court dates, & deadlines.
Access our cloud-based system from any device.
Our knowledge base includes a selection of Colorado Revised Statues, legal glossary, how-to guides, and other helpful articles.

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Legal Thunder is not a law firm and cannot provide legal advice. The information, instructions, and applications Legal Thunder offers are for informational purposes only and function only at your self-direction. These services are not a substitute for an attorney and do not constitute legal advice about your case. Legal Thunder’s services works best if used in collaboration with an attorney licensed in your state which you obtain independently.