Accounts Assistant

Accounts Assistant 3-Months | August - October 2026 Newbury Due to continued growth and an upcoming Sage 200 implementation, our client is seeking an Accounts Assistant to support the finance team during a busy period and assist with the transition from QuickBooks to Sage 200. Working closely with the Finance Manager, you will provide day-to-day finance support, assist with account reconciliations, help prepare data for migration into Sage 200, and support the wider finance function ahead of the October go-live. This is an excellent opportunity for someone with a solid finance background who enjoys working in a varied role and is keen to gain exposure to a systems implementation project. Key Responsibilities • Process and maintain Accounts Payable invoices within QuickBooks and support the transition to Sage 200 • Reconcile balance sheet and other control accounts • Prepare and consolidate financial data using Excel for migration into Sage 200 • Assist with the preparation of opening balances ahead of the October go-live • Support the transfer and reconciliation of finance data between systems • Assist with Sage 200 system testing and data validation • Help develop and maintain finance procedures and records • Provide day-to-day support to the Finance Manager and wider finance team • Liaise with internal stakeholders to ensure finance information is accurate and up to date Skills & Experience Required • Previous experience working in an Accounts Assistant, Finance Assistant, or Bookkeeping role • Experience processing invoices and reconciling accounts • Good understanding of balance sheet reconciliations • Intermediate Excel skills, including data consolidation and reconciliation • Strong attention to detail and accurate data entry skills • Ability to work independently and prioritise workload effectively • Good communication skills and a proactive approach Desirable • Experience using Sage 200 • Experience working with QuickBooks • Previous exposure to finance system migrations or data transfer projects • Experience supporting a busy finance team What's on Offer? • Immediate start • 3-month contract through to October • Opportunity to gain exposure to a Sage 200 implementation project • Varied role with a broad range of finance responsibilities • Supportive and collaborative working environment Apply Now If you're an organised finance professional looking for a varied Accounts Assistant position within a growing business, we'd love to hear from you. To apply, please submit your CV or contact Sophie or Ella on for a confidential discussion. Adecco acts as an employment agency for permanent recruitment and an employment business for the supply of temporary workers. The Adecco Group UK & Ireland is an Equal Opportunities Employer. By applying for this role your details will be submitted to Adecco. Our Candidate Privacy Information Statement explaining how we will use your information is available on our website.