Missouri DOR Publishes Updated Employer’s Withholding Tax Guide

The Missouri Department of Revenue (DOR) published an updated employer’s withholding tax guide, providing instructions to employers on Missouri income tax withholding requirements for 2026. The guide covers topics such as employer registration, determining who are employees subject to withholding, calculating withholding amounts using the percentage formula method, filing frequencies for returns, compensation deductions for timely filings, paperless filing of W-2s for employers with over 250 employees, closing withholding accounts, and penalties for non-compliance. [Mo. Dep’t of Revenue, Employer’s Tax Guide, 12/01/25]

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