One Day Agency is 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-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.
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
* 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.