Job Title

One Day Agency is an integrated advertising and marketing agency with offices in Manchester, London, and Warsaw. In just five years, weve 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 Were looking for a highly organised and detail-oriented Accounts Assistant to 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. Youll 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 Were Looking For AAT Level 4 qualification (minimum requirement) 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 30,000 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.