Payroll Assistant - Part Time

Company Costco
Location Walnut Creek, CA
Job Type Part Time
Posted On
Salary $25 - $31
Payroll Assistant - Part Time at Costco — Part Time in Walnut Creek, CA. Salary: $25 - $31.

Local Job Overview: Walnut Creek

Role Essentials

  • Company: Costco
  • Project-based work with clear objectives.
  • Worksite: Walnut Creek, CA
  • Core objectives involve your professional skills in Payroll Administration.
  • Benefits: A competitive compensation package is offered.
  • Salary: $25-$31/Hour (approx. $33.7k/Year)
  • Required Experience: Entry-Level.
  • Position: Payroll Assistant - Part Time (Flexible/Contract, Walnut Creek)
  • This Walnut Creek-based role is an excellent opportunity for professionals skilled in relevant skills.
  • Our Costco team in Walnut Creek, CA is growing.
  • Benefit from working in Walnut Creek, a key hub for the Payroll Administration industry.


Payroll Assistant - Part Time

About Costco

We operate over 800 warehouse clubs globally, supplying bulk goods directly to millions of active members every single week. Our organization consistently promotes from within, ensuring hourly staff can advance into corporate management roles. When you embark on a career in part time payroll assistant with Costco, you are joining you are joining a supportive team that values work-life balance and rewards dedication with clear internal promotions.

Job Summary

Join our payroll team on a part-time schedule designed to fit around your classes or second job. You will handle weekly wage calculations and benefit updates while building a long-term internal career path. You will serve as Part-Time, delivering the signature Detail-oriented that sets Costco apart in the payroll administration.

Comprehensive Responsibilities

  • Process Weekly Timesheets: Review 250 employee timecards weekly using ADP Enterprise.
  • Update Direct Deposits: Input 40 banking changes monthly into SAP software accurately.
  • Audit Wage Records: Verify zero discrepancies across 500 employee tax withholding files.
  • Resolve Payroll Inquiries: Answer 30 weekly staff questions via ticketing system.

Industry-Leading Benefits & Salary

We invest in our part-time employees with reliable perks and scheduling support.

  • Salary: $21.50–$26.00 per hour
  • Flexible Shifts: Choose morning or evening blocks fitting your personal commitments.
  • Retirement Plan: Contribute to a 401(k) program with company match options.
  • Free Membership: Receive a complimentary annual warehouse club membership card.

Requirements & Qualifications

  • Minimum 1 year of hands-on payroll processing experience
  • Proficiency in Microsoft Excel including vlookups and pivot tables
  • High school diploma or equivalent educational qualification
  • Ability to work 20 scheduled hours per week on-site

Frequently Asked Questions

How much does the Payroll Assistant position pay at Costco?

This role offers a pay range of $25 - $31. Actual compensation may vary based on experience, shift, and location within Walnut Creek.

Where is this Payroll Assistant job located?

This position is based in Walnut Creek, CA. Costco has facilities throughout the region, but this specific opening is in Walnut Creek.

Do I need prior experience to apply for this Payroll Assistant job?

No prior experience is required. Costco provides all necessary training for new hires. This is an entry-level opportunity open to candidates from all backgrounds.

How many hours per week is this part-time Payroll Assistant role?

Part-time positions at Costco generally range from 20 to 30 hours per week with flexible scheduling options. Exact hours depend on business needs and your availability.

What benefits does Costco offer for this position?

Costco provides comprehensive benefits starting Day 1, which may include medical, dental, and vision coverage, 401(k) with company match, paid time off, and employee assistance programs.

Does Costco offer tuition assistance or education benefits?

Yes, Costco offers fully funded tuition reimbursement programs. Eligible associates can pursue degrees and certifications at no cost through programs like Career Choice, covering tuition, books, and fees.

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