Tax Account Registration Specialist

Justworks · New York, New York

  • Junior
  • Full-time
  • Posted 2026-09-11
  • Confirmed live on 25 September 2026

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Job description

Who We Are

At Justworks, you’ll enjoy a welcoming and casual environment, great benefits, wellness program offerings, company retreats, and the ability to interact with and learn from leaders in the startup community. We work hard and care about our most prized asset - our people.

We’re helping businesses get off the ground by enabling them to focus on running their business. We solve HR issues. We’re data-driven and never stop iterating. If you’d like to work in a supportive, entrepreneurial environment, are interested in building something meaningful and having fun while doing it, we’d love to hear from you.

We're united by shared goals and shared motivations at Justworks. These are best summed up in our company values, which are reflected in our product and in our team.

Our Values

If this sounds like you, you’ll fit right in.

Who You Are

You are a proactive, detail-oriented professional who brings structure to complexity. You excel at identifying opportunities to streamline processes and consistently drive toward greater efficiency through a mix of subject matter expertise and tech fluency. As the Tax Account Registration Specialist, you own the end-to-end health of our customers' tax profiles. You are a research-driven self-starter who loves breaking down complicated concepts into simple terms and solving problems with an automation-forward mindset.

The Tax Account Registration Specialist, is responsible for the complete lifecycle management of tax registrations and third-party access (TPA) for our customers. This role involves cross-functional collaboration with the Onboarding, Payroll Tax Operation, Payroll Tax Notice and Customer Success Organization teams to gather necessary information, ensuring successful relationships with all stakeholders. A crucial function of this position is State Agency relationship management. The Specialist will combine operational expertise and problem-solving skills to efficiently resolve inquiries and issues while ensuring every tax profile is accurate, compliant, and prepared for seamless filing.

Your Success Profile

What You Will Work On

• Own the end-to-end tax registration process for new and existing customers expanding into new states. This includes:

• Completing and filing all necessary Power of Attorney forms.

• End-to-end implementation of new customer profiles, including registering accounts for state-level unemployment, withholding tax, paid family and medical leave, and worker’s compensation agencies, as well as all applicable local-level wage and business taxes.

• Partner with state agency representatives to ensure proper account setup.

• Execute and complete TPA confirmation workflows, ensuring Justworks is properly linked to customer accounts for all required state agencies.

• Manage the queue of open issues to deliver timely and effective solutions regarding a customer's unemployment tax account.

• Collect and disperse registration confirmations, tax rates, and account IDs internally across systems, teams, and workflows to ensure tax filing readiness.

• Daily responsibilities include accurately inputting new customer and relevant tax data into the tax reporting and filing software, confirming its accuracy, and escalating any issues to senior team.

• Craft outbound emails to customers regarding required account information, following up via phone as needed to meet service level agreements (SLAs).

• Proactively identify opportunities to automate manual tasks, establishing new standard operating procedures to maximize efficiency.

• Contribute recommendations for improving the collection and tax remittance process as applicable.

• Act as a research owner by staying informed on state regulations affecting new registrations and documenting state-specific requirements to maintain compliance.

• Update state requirements and setup instructions as changes occur, ensuring all information is current, streamlined, and easy to follow.

• Remain informed regarding state regulations affecting new business registrations and account maintenance.

• Track trends identified within each state and proactively develop relevant responses.

• Conduct regular audits of account data and Third-Party Administrator (TPA) connections to identify unfiled returns or outstanding penalties before filing deadlines.

• Partner with Onboarding, Customer Success, and Payroll Tax Filing teams to resolve complex inquiries and integrate regulatory changes into documentation.

• Partner with the State unemployment claims team to ensure timely account updates for correct claim routing.

• Perform other related duties as assigned.

How You Will Do Your Work

As a Tax Account Registration Specialist, how results are achieved is paramount for your success and ultimately result in our success as an organization. In this role, your foundational knowledge, skills, abilities and personal attributes are anchored in the following competencies:

• Detail-oriented: Bring rigor and prec

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