Accounts Assistant

JR United Kingdom; Basildon; On-site; GBP 25,000 - 35,000; Full time

Job summary

A leading integrated advertising and marketing agency is seeking an organised and detail-oriented Accounts Assistant. The successful candidate will manage day-to-day financial operations including accounts payable, payroll, and reconciliations, with a preference for background in media or advertising. Employees enjoy flexible work options and a supportive environment for professional growth, making it a great opportunity for those looking to advance their careers.

Benefits

Flexible Work: WFH every Friday + 20 additional WFH days per year

Up to 30 days Annual Leave

Unlimited training and development budget

Top-tier office setup with high-end equipment

Additional perks on the Careers page

Qualifications

• Experience with handling accruals and prepayments.
• Competency in reconciliation of management accounts.
• Comfortable working independently and managing tasks.

Responsibilities

• Manage accounts payable and receivable processes.
• Issue client invoices and ensure timely follow-up on payments.
• Prepare financial reports for internal stakeholders.

Skills

Attention to detail

Organisational skills

Strong Excel/Sheets skills

General IT skills

Education

Previous experience in finance/accounts assistant role

Tools

Xero

CRM systems

Job description

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One Day Agencyis an integrated advertising and marketing agency with offices in Manchester, London, and Warsaw. In just five years, we’ve built a team of 12 dynamic professionals working with brands of all sizes, from small e-commerce businesses to F1 teams.

We specialise in delivering high-impact advertising campaigns across OOH, TV, Radio, and digital channels, helping brands grow through strategic media planning and buying.

The Role

We’re looking for a highly organised and detail-orientedAccounts Assistantto support the financial operations of the business. This is a pivotal role working closely with our leadership and operations teams to manage day-to-day finance functions including accounts payable, payroll, reconciliations, and management reporting.

You’ll need to be confident working independently, proactively managing month-end processes and reporting, with a solid understanding of core accounting principles. Experience in the media/advertising industry is highly desirable.

Key Responsibilities

• Manage accounts payable and receivable processes
• Reconcile management accounts, P&L, balance sheets, and cash flow
• Process payroll and manage pension contributions
• Handle accruals and prepayments accurately
• Issue client invoices and ensure timely follow-up on payments
• Maintain accurate financial records and documentation
• Prepare financial reports for internal stakeholders
• Assist with budgeting and forecasting
• Ensure compliance with internal financial controls and HMRC regulations
• Liaise with external accountants, suppliers, and internal teams

What We’re Looking For

• Proven experience working with Xero and CRM systems
• Demonstrated competency in:
• Accruals and prepayments
• Reconciliation of management accounts
• P&L, balance sheet, and cash flow reporting
• Payroll processing
• Invoicing and payables
• Previous experience in a finance/accounts assistant role
• Strong Excel/Sheets and general IT skills
• Excellent attention to detail and organisational skills
• Comfortable working independently and prioritising tasks
• Media/advertising industry experience preferred

Salary & Benefits

? Salary: Up to £35,000

? Flexible Work: WFH every Friday + 20 additional WFH days per year

? Annual Leave: Up to 30 days

? Professional Growth: Unlimited training and development budget

? Top-tier office setup with high-end equipment

? Additional perks listed on our Careers page.