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How Pay Calculation Works

A guide to understanding hours, pay, deductions, overtime, and more

Written by Liam Dorpalen-Barry

Accurate pay calculation is the foundation of smooth payroll management. Our platform automates the entire process—from tracking hours and overtime to applying deductions—so you and your employees can focus on what matters. This guide explains the key components of pay calculation and how pay calculations work.

Table of Contents

  • What is Pay Calculation?

  • Hourly vs. Salaried Pay

  • Overtime, Bonuses, and Commissions

  • Deductions and Withholdings

  • FAQ


What is Pay Calculation?

Pay calculation is the process of determining how much an employee earns for a given pay period. It's more than just hours × hourly rate. It includes:

  • Base pay (salary or hourly wages)

  • Overtime and bonuses

  • Commissions (if applicable)

  • Deductions (taxes, benefits, garnishments)

  • Reimbursements (if applicable)

A correct pay calculation ensures employees are paid fairly, on time, and in compliance with federal and state labor laws. Mistakes can be costly—leading to underpayment, tax penalties, and damage to employee trust.

With proper automation and verification at each step, errors are caught before paychecks are issued.


Hourly vs. Salaried Pay

The method for calculating pay depends on employment classification:

Employee Type

Calculation

Example

Hourly

Hours worked × hourly rate (+ overtime if applicable)

40 hrs × $25/hr = $1,000

Salaried

Annual salary ÷ pay periods = consistent pay per cycle

$60,000 ÷ 26 periods = $2,307.69

Hourly employees: Paid based on actual hours worked. Overtime (typically 1.5× the regular rate) applies for hours over 40 in a week, depending on federal and state law.

Salaried employees: Receive the same amount each pay period regardless of hours worked. However, they may still need to track hours for benefits eligibility, workload management, or state compliance.


Overtime, Bonuses, and Commissions

These variable pay components are critical to accurate compensation and must be included in gross pay before tax calculations.

Component

What It Is

How It's Handled

Overtime

Paid at a higher rate (usually 1.5×) for hours exceeding 40 per week

Automatically calculates based on hours logged; flags if employee is classified incorrectly

Bonuses

One-time or recurring payments for performance, referrals, or milestones

Add via dashboard; automatically taxed and included in pay stub

Commissions

Payments tied to sales or performance metrics

Can be manually entered or synced from your CRM; processed in the designated pay period

All variable pay is considered taxable income and subject to federal and state withholding, Social Security, and Medicare taxes.


Deductions and Withholdings

Deductions reduce gross pay to calculate net pay (take-home). There are three main categories:

Deduction Type

Examples

Note

Tax Withholdings

Federal income tax, state income tax, Social Security, Medicare

Calculated automatically based on W-4 and employee location

Benefit Deductions

Health insurance, 401(k), FSA/HSA, life insurance

Pre-tax (reduces taxable income) or post-tax (taken from net pay)

Other Deductions

Child support garnishments, wage attachments

Processed according to court orders or legal requirements

Pre-tax and post-tax deductions are separated to ensure accurate tax calculations. All deductions appear on employee pay stubs for transparency.


FAQ

How are state and federal taxes calculated?

Current tax tables are automatically applied based on the employee's W-4 withholding elections and their work location (state/local). Tax rates update automatically when regulations change.

What if I need to make a correction after payroll is approved?

You can void or amend a processed payroll within your approval window. The system will recalculate the pay, taxes, and benefits accordingly. Amended pay stubs are generated automatically.

Are bonuses and commissions taxed differently?

No. All bonuses, commissions, and variable pay are subject to the same income, Social Security, and Medicare withholding as regular wages. The same tax rates apply across all compensation types.

What information do employees see on their pay stub?

Employees see their gross pay, all deductions (broken down by type), net pay, and year-to-date totals. They can also download their pay stub as a PDF for their records.

How are multi-state employees handled?

Taxes are calculated based on each employee's primary work location. If an employee works in multiple states, let us know—we can configure rules to ensure accurate withholding for each jurisdiction.

Can I audit past pay calculations?

Yes. A complete history of all processed payroll is maintained. You can view, export, and verify pay calculations for any pay period at any time.

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