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title: Karr Barth Administrators - Blog | SERP
description: SERP | Form W-4R applies to those specifying a withholding amount from nonperiodic payments, such as distributions  from nonqualified deferred compensation plans.
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# Karr Barth Insights

Fully customized & white glove executive benefits solutions

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## [Blog: Insurance Terms & Non-Qualified Account Definitions](https://blog.kbadmin.com/blog-insurance-terms-non-qualified-account-definitions)

[Karr Barth Administrators](https://blog.kbadmin.com/author/karr-barth-administrators)

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