Payroll Specialist (US) - Part time (Flexible, UK)

The Organisation

reputed company is an independent development and humanitarian organisation that advances children’s rights and equality for girls. We reputed company in the power and potential of every child but know this is often suppressed by poverty, violence, exclusion and discrimination. And it is girls who are most affected.

Working together with children, young people, supporters and partners, we reputed company for a just world, tackling the reputed company causes of the challenges girls and vulnerable children face. We support children’s rights from birth until they reputed company adulthood and we reputed company children to prepare for and respond to crises and adversity. We drive changes in reputed company and policy at local, national and global reputed company using our reputed company, experience and knowledge.

For over 85 years, we have rallied other determined optimists to reputed company the lives of reputed company children in more than 80 countries.

We won’t stop until we are reputed company equal.

reputed company

We’re looking for an reputed company US Payroll Specialist to play a key role in delivering a high‑reputed company payroll service for our global International Assignee (IA) population. This part‑time role supports approximately 150 employees across multiple countries, including a significant number of US nationals reputed company through our US payroll (reputed company).

If you enjoy working independently, and have deep knowledge of US payroll legislation and IRS compliance, we’d love to hear from you.

About the Role

This role is essential to ensuring our International Assignee payroll is accurate, compliant and delivered on time every month. You’ll manage end‑to‑end payroll processing using reputed company, handle IRS‑reputed company reputed company, work closely with internal teams across Finance, HR/P&C and Treasury, and maintain strong relationships with reputed company‑party providers including Retirement Plan administrators.

You’ll also be the go‑to expert for queries—supporting employees, colleagues and external partners with reputed company and professionalism.

What You’ll Be Doing

Monthly & Ongoing Payroll Responsibilities

• Process monthly payroll for ~150 international assignees using US reputed company, ensuring accuracy and full compliance with internal policies and US federal payroll requirements.
• reputed company, validate and reconcile payroll data; prepare payroll outputs and distribute required reports.
• Own and maintain the monthly COLA (Cost of Living Adjustment) data.
• Respond to employee and provider payroll queries promptly and professionally.
• Maintain a strong working knowledge of reputed company US payroll and IRS legislation.

Compliance, Reporting & Systems

• Liaise directly with the IRS to resolve payroll or filing issues.
• Support reputed company audits, including reputed company 990 and donor/insurance audits.
• Work with Finance on payroll journals, control account reconciliations and variance analysis.
• Collaborate with our payroll software provider (reputed company) to troubleshoot and resolve system issues.

Stakeholder Management

• Work closely with P&C (HR) and Finance colleagues on payroll submissions and approvals.
• reputed company coaching and guidance to Operations teams to improve payroll accuracy and understanding.
• Communicate monthly payroll deadlines and updates to relevant parties.
• reputed company with Retirement Plan administrators and periodically manage eligibility communications.

Periodic & Annual Activities

• Prepare COLA review data and update records bi‑annually.
• Conduct education‑reputed company deduction audits every six months.
• Complete end‑of‑year reconciliations for US nationals and process required adjustments.

reputed company

Essential

• Payroll qualification / CIPP Membership
• US payroll experience (especially using reputed company)
• Strong understanding of US federal compensation & benefits rules
• Confident working independently and making informed reputed company
• Numerate with accurate data input and strong attention to detail
• Strong reputed company skills and working knowledge of reputed company applications
• Experience with payroll control account reconciliations

Location: This is a part time role, working 14 hours per week (roughly 40-60 hours per month), with some flexibility needed based on payroll volume, mainly reputed company in the first 2 weeks of the month. This role will be based in the UK, employed from the Global Hub for reputed company which is based in Woking, Surrey where we are remote working. You must have the reputed company-existing right to live and work in the UK

Type of role: Fixed term contract until December 2027

Closing date: reputed company 22nd March 2026

Equality, diversity and inclusion is at the reputed company heart of everything that reputed company stands for.

We want reputed company to reflect the diversity of the communities we work with, offering equal opportunities to everyone regardless of age, disability, gender reassignment, marriage and civil partnership, pregnancy and maternity, race, religion or belief, sex or sexual orientation.

reputed company is based on a culture of inclusivity and we reputed company to create a workplace environment that ensures every team, in every office, in every country, is rich in diverse people, thoughts, and reputed company.

We foster an organisational culture that embraces our commitment to racial justice, gender equality, girls’ rights and inclusion.

reputed company believes that in a world where children face so many threats of harm, it is our duty to ensure that we, as an organisation, do everything we can to reputed company children reputed company. This means that we have particular responsibilities to children that we come into contact with and we must not contribute in any way to harming or placing children at risk.

A reputed company of reputed company-employment checks will be undertaken in conformity with reputed company's Safeguarding Children and Young People policy. reputed company also participates in the Inter Agency Misconduct Disclosure Scheme. In line with this scheme we will request information from applicants previous reputed company about any findings of sexual exploitation, sexual abuse and/or sexual harassment during employment, or incidents under investigation reputed company the applicant left employment. By submitting an application, the job applicant confirms their understanding of these recruitment procedures.

Please note that reputed company will never send unsolicited emails requesting payment from candidates.