Accounts Payable Assistant

Morgan McKinley (Milton Keynes); Milton Keynes; On-site; GBP 30,000 - 32,000; Full time

Benefits offered by this job

Company pension scheme with employer

25 days annual leave plus bank holiday

Job summary

Morgan McKinley Milton Keynes is seeking an Accounts Payable Assistant to join our finance team in the Milton Keynes office. The role focuses on accurate purchase ledger maintenance, supplier invoice processing, and timely payment runs within a controlled environment.

You will resolve supplier queries, support month-end processes, and collaborate with procurement and operations to ensure smooth financial operations.

Qualifications

• Proven track record in Accounts Payable / Purchase Ledger & general finance administration.
• Strong understanding of double-entry bookkeeping and basic accounting principles.
• Experience with major ERP/accounting software (e.g., SAP, Sage, Oracle, Xero, or MS Dynamics).
• Intermediate Excel skills (VLOOKUPs, Pivot Tables, basic formulas).

Responsibilities

• Process high volumes of purchase invoices against POs/delivery notes and code entries.
• Handle weekly/mid-month payment runs (BACS, CHAPS, international transfers) and reconciliations.
• Respond to supplier inquiries, maintain vendor master data, and support month-end close.

Skills

Accounts Payable

Purchase Ledger

Double-entry bookkeeping

Attention to detail

Time management

Communication

Tools

SAP

Sage

Oracle

Xero

MS Dynamics

Job description

Role Overview

The Accounts Payable Assistant is a core member of the finance team, responsible for ensuring the accurate, efficient, and timely processing of high-volume supplier invoices and employee expenses. Based in our Milton Keynes office, this permanent role focuses on maintaining a precise purchase ledger, resolving financial queries, and facilitating weekly payment runs while ensuring strict adherence to internal financial controls.

Key Responsibilities

• Invoice Processing & Ledger Management

  • Accurately log, match, batch, and code high volumes of purchase invoices against corresponding purchase orders (POs) and delivery notes.

  • Ensure all invoices are authorized by the appropriate department heads prior to payment.

  • Maintain a clean, up-to-date, and accurate purchase ledger.

  • Identify and investigate discrepancies between POs, delivery receipts, and supplier invoices.

• Payment Runs & Reconciliations

  • Prepare and process weekly and mid-month payment runs (BACS, CHAPS, and international transfers) accurately and on time.

  • Perform regular supplier statement reconciliations, actively chasing missing invoices or credit notes to ensure account balances align.

  • Process and reconcile employee out-of-pocket expenses and corporate credit card statements in line with company policy.

  • Assist with month-end and year-end closing procedures, ensuring all AP timelines are met.

• Query Resolution & Supplier Relations

  • Serve as the primary point of contact for external supplier inquiries via phone and email, resolving payment disputes and account holds professionally.

  • Liaise internally with procurement and operational teams to resolve unapproved invoices and PO discrepancies.

  • Set up new supplier accounts and maintain accurate vendor master data, ensuring bank details are verified to prevent fraud.

• Experience & Knowledge

  • Proven track record working within an Accounts Payable, Purchase Ledger, or general Finance Administration role.

  • Strong understanding of standard double-entry bookkeeping and basic accounting principles.

  • Familiarity with major ERP or accounting software (e.g., SAP, Sage, Oracle, Xero, or MS Dynamics).

  • Intermediate proficiency in Microsoft Excel (VLOOKUPs, Pivot Tables, and basic formulas).

• Skills & Attributes

  • Attention to Detail: Exceptional numerical accuracy and a meticulous approach to data entry.

  • Time Management: Ability to manage a fast-paced workload, prioritize effectively, and meet strict daily and monthly deadlines.

  • Communication: Clear, professional written and verbal communication skills for handling internal stakeholders and external suppliers.

  • Reliability: A strong sense of accountability and comfort working fully on-site in a structured 9-to-5 team environment.

Compensation & Benefits

• Salary: 30,000 - 32,000

• Pension: Company pension scheme with employer contributions

• Holiday: 25 days annual leave plus standard UK bank holidays