Payroll and Billing Administrator

Posted 05 January 2026
Salary £26.5k - 27.5k per year + Private medical, quarterly bonus
LocationPortsmouth
Job type Permanent - Full Time
Discipline Internal Vacancies
ReferenceWL/Framework

Job description

Payroll & Billing Administrator

£26,500 – £27,500 plus 5% quarterly bonus

Monday to Friday 8-5pm

Due to continued company growth, we are recruiting a Payroll & Billing Administrator to join our Credit Control team. This role is ideal for someone with strong attention to detail who enjoys working with high-volume data in a fast-paced environment.

You will be responsible for ensuring contractor payroll is processed accurately and on time, sales invoices are raised correctly, and client payments are allocated and reconciled efficiently.

Key Responsibilities

  • Accurately processing 1,000+ timesheets per week
  • Entering timesheet data for contractor payments
  • Raising sales invoices through the pay and bill system
  • Reviewing timesheets for errors, omissions and rate discrepancies
  • Responding to payroll, timesheet and invoice queries from contractors, clients and internal teams
  • Allocating and reconciling client payments using remittance advice
  • Monitoring and chasing overdue balances by phone and email
  • Investigating invoice discrepancies and resolving billing queries
  • Reporting on overdue invoices, actions taken and proposed resolutions
  • Working closely with Consultants, Managers and Directors to support debt collection
  • Supporting continuous improvement of finance systems and processes
  • Providing cover for other finance team members and supporting general admin tasks when required

Skills & Experience Required

  • GCSEs including English and Maths (Grade C / Level 4 or above)
  • A Levels or equivalent
  • Basic knowledge of Microsoft Excel
  • Excellent attention to detail and accuracy

Company Benefits

  • Flexible working after probation
  • 25 days holiday, increasing annually
  • Option to buy up to 5 additional holiday days
  • Private healthcare from day one
  • Pension scheme - 4% matched, increasing with seniority
  • Year-round paid social events
  • Offsite training and development days
  • Flexible benefits package
  • £50 birthday voucher
  • Free parking and free bus service from local train stations
  • 5-star office location with on-site restaurant
  • Team lunches and performance-related incentives

Why Apply?

This is an excellent opportunity to join a growing business where accuracy, collaboration and career development are genuinely valued. You’ll be supported with training, clear processes and a friendly team environment, with long-term progression opportunities available.

Apply today to take the next step in your finance career.