Mark Onyango

Finance and Accounting Professional with over 10 years of progressive experience in financial operations, accounts receivable (AR), accounts payable (AP), credit administration, tax compliance, and audit management. Demonstrated track record at WPP Scangroup PLC managing multi-million shilling accounts receivable portfolios, reducing overdue balances, and driving operational efficiency. Highly skilled in KRA tax compliance, advanced Excel data analysis, financial reporting, and end-to-end audit readiness.

CPA holder with a Bachelor's degree in International Business Administration.

Finance and Accounting Consultant at INDEPENDENT PRACTICE (2024-06 – Present)

• Deliver independent accounting, bookkeeping, and financial advisory services to corporate clients to enhance operational cash flow and financial visibility.
• Prepare and manage tax compliance filings (KRA), statutory returns, and general ledger reconciliations for corporate entities.
• Structure audit-ready financial records and establish internal controls to support sound executive decision-making.

Senior Accountant at WPP SCANGROUP PLC (2020-12 – 2024-04)

Managed core financial and accounting functions, ensuring strict adherence to statutory standards and timely month-end/year-end reporting.

• Led end-to-end internal, external, and Kenya Revenue Authority (KRA) audit processes across multiple business units.
• Oversaw tax management and compliance schedules for a portfolio of 5 entities, consistently maintaining 100% on-time submission performance.
• Utilized advanced Excel data analytics to perform complex variance analysis, account reconciliations, and data cleanup.
• Facilitated internal, external, and KRA audits with full documentation compliance, successfully closing all audit queries within 7 working days.
• Identified and remediated recurring systemic reconciliation discrepancies, decreasing month-end adjustments by 15%.

Accounts Receivable Executive at WPP SCANGROUP PLC (2015-06 – 2020-11)

Controlled accounts receivable operations, including invoicing, credit administration, customer reconciliation, and payment disputes. Formulated cash flow forecasts and receivables analysis reports for senior management to enhance liquidity management. Partnered cross-functionally with commercial teams and external clients to resolve billing conflicts and optimize collection workflows.

• Oversaw an Accounts Receivable portfolio valued at approximately KES 200 Million, maintaining high accuracy in collection tracking.
• Reduced overdue receivables by 25% through targeted collection strategies and structured account review protocols.
• Improved Days Sales Outstanding (DSO) / average collection days from 90+ days down to 60 days.

Accounts Assistant at WPP SCANGROUP PLC (2012-08 – 2015-05)

• Supported day-to-day AP and AR transaction processing, ledger balancing, and supporting document verification.
• Assisted senior accountants with month-end reporting schedules, tax filings, and preliminary audit schedules.

Accounts Assistant – Coca-Cola Chaywa Operations at CONSUMER CONNECT (2011-01 – 2012-08)

• Managed daily transaction processing, bank reconciliations, and financial recordkeeping for Coca-Cola Chaywa operations.
• Maintained accurate financial documentation to support operational accounting and compliance reviews.

Management Trainee at CONSUMER CONNECT (2010-02 – 2011-01)

• Completed rotation in finance and business operations, building foundational competence in general ledger accounting and stakeholder coordination.

Certified Public Accountant (CPA) in Accounting – KASNEB (2014 – 2018)

Bachelor of Science in International Business Administration (IBA) – United States International University (USIU - Africa) (2005 – 2009)

Kenya Certificate of Secondary Education (KCSE) – St. Mary's School Yala (1999 – 2002)