Finance & Business Support/Office Administrator

Insight Select Ltd; City Of London; Hybrid; GBP 38,000 - 45,000; Full time

Job summary

Insight Select Ltd in City of London is seeking a Finance & Business Support Administrator to manage day-to-day finance tasks and provide office administration support. The role combines accounts administration, supplier invoices, and busy office coordination.

You will handle purchase and sales ledgers, VAT/compliance with HMRC rules, and assist with staff onboarding, records, and facilities. Hybrid working with one day from home is available.

Qualifications

• Experience in finance administration, accounts, bookkeeping, or finance support.
• AAT qualification or current study path.
• Strong Excel skills including LOOKUP, SUMIF/SUMIFS, PivotTables.

Responsibilities

• Process invoices and manage purchase ledger.
• Support sales ledger, invoicing, and debtor management.
• Manage CIS submissions and domestic reverse charge VAT compliance.
• Act as first point of contact for office facilities and admin support.
• Coordinate staff onboarding, records management, training logs, and office equipment.

Skills

Purchase ledger

Sales ledger

Reconciliations

Invoicing

Credit control

Sage 50

Excel

Communication

Organisation

Education

AAT qualification or studying

Tools

Sage 50

Excel

Job description

Finance & Business Support Administrator £38,000 - £45,000 City of London (1-day WFH)

A growing and well-established business based in the City of London, is seeking an experienced Finance & Business Support/Office Administrator to support day-to-day finance operations while ensuring the smooth running of a busy office environment. This is an excellent opportunity for someone who enjoys a varied role combining accounts administration, office management, staff support, and operational coordination.

Role & Responsibilities

• Manage purchase ledger activities, including processing invoices, maintaining supplier records, reconciliations, and weekly payment runs
• Support sales ledger and credit control processes, including invoicing, receipt allocation, and debtor management
• Experience managing CIS submissions and domestic reverse charge VAT requirements, ensuring accurate processing, compliance, and reporting in line with HMRC regulations
• Act as the first point of contact for the office, managing facilities, suppliers, contractors, office services, and administrative support
• Coordinate staff administration, onboarding, records management, training logs, and office equipment requirements

Essential Skills & Experience

• Previous experience in finance administration, accounts, bookkeeping, or a similar finance support role
• AAT qualified or studying towards
• Strong understanding of purchase ledger, sales ledger, reconciliations, payments, and credit control processes
• Good working knowledge of Microsoft Excel, including lookups, SUMIF/SUMIFS, filtering, and PivotTables
• Experience using accounting systems, with Sage 50 knowledge highly desirable
• Highly organised with excellent communication, administration, and stakeholder management skills

Package

• £38,000 - £45,000 salary depending on experience
• Permanent opportunity with broad responsibilities across finance and office operations
• Supportive and collaborative working environment