Payroll Guides

Local Taxes

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Local Taxes: Navigating the Most Complex Layer of Payroll

With over 5,000 local taxing jurisdictions across the U.S., understanding differences between local earned income tax codes is critical for accuracy. This guide simplifies the local tax landscape, helping payroll and HR technology providers understand how geography, reciprocity, and nexus determine tax obligations—and how automation can eliminate human error.

Inside the Local Payroll Tax Compliance Guide:

  • State vs. local vs. municipal taxes—and how nexus affects withholding

  • Ohio’s local tax system: JEDDs, JEDZs, and revenue-sharing zones

  • Pennsylvania’s Act 32 and PSD codes for earned income tax

  • City-level taxes like Philadelphia’s and their multi-state impact

  • How automation and geocoding ensure accurate local tax results

What are local taxes?

Local taxes are income or wage taxes imposed by cities, counties, school districts, or other local jurisdictions in addition to federal and state taxes. They vary widely across the U.S., which makes understanding and applying the right ones critical for accurate payroll processing.

Why do local taxes matter for payroll and withholding?

Even if a company is compliant at the federal and state levels, overlooking local taxes can lead to under-withholding, compliance violations, and costly penalties. Local taxes determine how much should be withheld based on where employees live and work, so accuracy directly affects both employer liability and employee paychecks.

What are common challenges companies face with local taxes?

The biggest challenges include identifying which jurisdiction applies to each employee, staying current with frequent rule changes, and reconciling work-location and residence-based taxes. Manual processes often result in errors or missed withholdings, which can trigger compliance issues during audits or filing

How can employers simplify local tax compliance?

Employers can simplify compliance by using automated payroll tax systems that apply the correct local rates, keep up with rule changes, and integrate directly with HR Tech or payroll platforms. Automation eliminates guesswork, reduces administrative burden, and ensures employees are taxed correctly for their location.

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