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Payroll & HR

What Is Payroll Tax?

Payroll & HR 4 min read Updated Jun 2026

Payroll tax refers to the taxes withheld from an employee's salary and remitted to tax authorities, typically covering income tax and social security contributions. Employers are generally responsible for calculating, withholding, and paying these amounts on behalf of their employees as part of running payroll.

Quick Fact

Payroll tax is usually a combination of multiple components, income tax and social security contributions, not a single tax, and each component often has its own rates, thresholds, and rules.

Payroll Tax at a Glance

AttributeDescription
DefinitionTaxes withheld from salary and remitted to authorities
Typical ComponentsIncome tax and social security contributions
Withheld ByThe employer, as part of running payroll
Remitted ToNational or regional tax authorities
FrequencyUsually monthly or per pay period
Employer RoleLegally responsible for accurate calculation and timely remittance

Why Does It Matter?

Getting payroll tax wrong, whether through incorrect withholding, late remittance, or misapplying rates, creates compliance risk for employers and can result in penalties, back payments, or disputes with tax authorities. Because payroll tax structures differ significantly between countries, employers operating internationally need country-specific expertise or reliable local payroll support.

When Is It Used?

Payroll tax calculations apply whenever a company:

  • Runs payroll for any employee and needs to withhold the correct tax and social security amounts.
  • Registers as an employer in a new country and needs to set up payroll tax compliance from the start.
  • Reviews or audits its payroll process to confirm ongoing compliance with local tax rules.
Example

A company hiring its first employee in a new country registers with the relevant tax authority, sets up payroll to withhold both income tax and social security contributions from the employee's salary each pay period, and establishes a process for remitting those amounts and filing the required reports on time.

Common Misconceptions

“Payroll tax is a single flat tax.”

No. It typically combines multiple components, most commonly income tax and social security contributions, each with its own calculation method.

“Payroll tax only affects the employee.”

No. Employers also bear separate payroll-related costs, such as employer-side social security contributions, in addition to withholding the employee's portion.

“Payroll tax rules are consistent across countries.”

No. Rates, thresholds, filing frequency, and calculation methods vary considerably by country.

“Once payroll tax registration is complete, no further action is needed.”

No. Ongoing compliance requires ongoing accurate withholding, timely remittance, and regular filings, not just initial registration.

Bottom Line

Payroll tax covers the income tax and social security amounts an employer withholds from salary and remits to tax authorities on an employee's behalf. Because rules vary significantly by country, accurate payroll tax compliance requires either strong local expertise or a reliable payroll partner in each jurisdiction where a company hires.

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