Professional Career
Angelo Aguot Deng Piol
Acting Commissioner, Domestic Tax Revenue Division
Career Overview
Angelo Aguot Deng Piol has built more than two decades of professional experience across revenue administration, taxation, public financial management, audit, policy, strategic planning, and institutional leadership.
His career has progressed through state and national revenue institutions as well as the Ministry of Finance and Economic Planning, with increasing responsibility for revenue mobilization, compliance, financial accountability, policy development, and institutional performance.
Current Position
Acting Commissioner, Domestic Tax Revenue Division
South Sudan Revenue Authority (SSRA) | August 2026 – Present
Angelo currently serves as Commissioner of the Domestic Tax Revenue Division, providing senior leadership and strategic direction in domestic tax administration, compliance, and revenue mobilization.
- Lead the development and implementation of institutional strategy, research frameworks, and corporate planning processes within the South Sudan Revenue Authority
- Coordinate the preparation of strategic plans, annual work plans, and performance monitoring frameworks aligned with national revenue objectives
- Oversee research and policy analysis to support evidence-based decision-making in tax administration and revenue mobilization
- Guide data-driven planning processes to enhance institutional efficiency, effectiveness, and revenue performance
- Collaborate with internal departments and external stakeholders to align strategic priorities with national fiscal policies and reforms
- Monitor and evaluate implementation of strategic initiatives and provide periodic performance reports to senior leadership
- Provide technical leadership in policy formulation, institutional reforms, and long- term revenue development strategies
- Strengthened strategic planning systems within SSRA, improving alignment between institutional objectives and national revenue priorities
- Enhanced research and data utilization in decision-making, contributing to more evidence-based policy development
- Supported the design of improved performance monitoring frameworks that increased accountability and institutional efficiency
- Contributed to the development of long-term revenue mobilization strategies aimed at improving fiscal sustainability
- Coordinate inter-departmental functions to align internal operations with the authority's revenue collection and compliance mandates
- Provide strategic oversight for internal audit, accountability, and administrative governance frameworks
- Liaise with senior leadership to implement institutional reforms and strengthen internal control systems
- Oversee internal affairs operations within the South Sudan Revenue Authority, ensuring compliance with institutional policies, procedures, and governance standards
- Monitor and evaluate staff performance across internal affairs divisions to ensure delivery of operational targets
- Supervise compliance with regulatory and legal frameworks governing revenue authority operations
- Support capacity-building initiatives for staff across internal affairs functions
- Strengthened internal governance structures, contributing to improved institutional accountability within the authority
- Successfully coordinated cross-departmental compliance efforts, reducing procedural gaps in internal operations
- Contributed to the development and rollout of revised internal policy frameworks aligned with regional best practices
- Supported institutional reform processes that enhanced the authority's operational efficiency
- Led the coordination of states affairs and non-tax domestic revenue streams, ensuring alignment between federal and state-level revenue operations
- Developed and implemented strategies to diversify and grow non-tax domestic revenue sources across South Sudan's states
- Supervised revenue officers and divisional staff, providing technical guidance on revenue collection procedures and compliance
- Engaged state governments and revenue authorities to strengthen intergovernmental fiscal coordination
- Monitored revenue performance data and prepared analytical reports for senior leadership and policymakers
- Ensured accurate reconciliation of non-tax revenue streams between state and federal accounts
- Represented the division in inter-agency meetings, policy forums, and government budget planning processes
- Drove measurable growth in non-tax domestic revenue through the development and execution of targeted mobilization strategies
- Improved state-federal revenue coordination mechanisms, reducing reporting discrepancies and strengthening fiscal accountability
- Built institutional capacity within the division by mentoring revenue officers and establishing structured operational protocols
- Contributed to policy recommendations that informed government decisions on non-tax revenue diversification
- Assumed full oversight of the Domestic Tax Revenue Division during the acting assignment, providing executive-level leadership and operational continuity
- Directed divisional staff and supervised daily tax revenue collection, compliance, and reporting operations
- Coordinated with the Commissioner General's office on strategic priorities and performance targets
- Represented the division in senior management forums, budget discussions, and inter-agency engagements
- Ensured the continued implementation of domestic tax policy and procedural frameworks during the transition period
- Maintained divisional operational continuity and revenue performance targets throughout the acting period
- Facilitated the smooth handover of divisional leadership, ensuring no disruption to ongoing revenue collection operations
- Identified and escalated key operational priorities to senior management, supporting informed executive decision-making
- Managed the data processing and revenue reconciliation function within the Domestic Tax Revenue Division, ensuring accuracy and integrity of revenue data
- Oversaw the collection, processing, and verification of domestic tax revenue data from multiple collection points across South Sudan
- Developed and maintained reconciliation frameworks to align tax assessments, collections, and remittances with government treasury records
- Supervised a team of data processing officers, providing technical support and performance oversight
- Produced analytical reports on revenue trends, variances, and data integrity issues for divisional and senior management review
- Collaborated with IT and systems teams to improve data capture and processing workflows
- Ensured compliance with data management standards and revenue reporting requirements
- Significantly improved the accuracy and timeliness of domestic tax revenue reconciliation, reducing discrepancies in reported revenue figures
- Introduced enhanced data processing workflows that increased efficiency and reduced manual reconciliation errors
- Developed standardized reporting templates that improved the quality and consistency of revenue data submitted to senior management
- Supported the integration of improved data systems, contributing to a more robust revenue information infrastructure
- Directed the development, review, and implementation of audit policies and procedural frameworks within the Ministry of Finance and Economic Planning
- Led audit operations across government financial units, ensuring compliance with established financial management standards
- Developed and revised audit procedure manuals and policy guidelines in line with international best practices
- Coordinated with internal and external auditors, providing technical guidance and oversight on audit engagements
- Monitored the implementation of audit recommendations and reported on compliance progress to senior ministry leadership
- Represented the ministry in inter-agency meetings on financial governance, accountability, and public sector audit reform
- Provided technical advisory support to government departments on financial policy compliance and audit preparedness
- Led the development and institutionalization of revised audit policy frameworks that strengthened financial accountability across the ministry
- Improved audit compliance rates across government departments by implementing structured follow-up mechanisms on audit findings
- Contributed to public financial management reform initiatives, aligning ministry audit practices with regional and international standards
- Mentored and built the capacity of audit staff, enhancing the division's technical competence and operational effectiveness
- Managed revenue generation operations for the Northern Bahr El Ghazal State Revenue Authority, overseeing tax and non-tax revenue collection at the state level
- Supervised field revenue officers and collection teams across Aweil and surrounding districts, ensuring compliance with state revenue procedures
- Developed and implemented state-level revenue collection strategies to maximize domestic resource mobilization
- Conducted taxpayer education and outreach programs to improve voluntary compliance among businesses and individuals
- Maintained revenue records and prepared periodic reports on state revenue performance for submission to state government leadership
- Liaised with federal revenue authorities to ensure alignment between state and national revenue frameworks
- Monitored and enforced compliance with state tax regulations, including assessments, audits, and enforcement actions
- Delivered consistent revenue growth over a nine-year tenure, contributing to improved fiscal self-sufficiency for Northern Bahr El Ghazal State
- Established structured revenue collection procedures that improved operational consistency and accountability across state collection points
- Built and mentored a high-performing team of revenue officers, strengthening the state authority's institutional capacity
- Played a key role in formalizing the state revenue framework during South Sudan's early post-independence period, supporting fiscal institution-building
- Supervised field activities and coordinated community engagement and project implementation.
- Worked with local communities and stakeholders to support improved Water, Sanitation and Hygiene (WASH) services.
- Supported the implementation of community-based development activities and coordinated field-level project operations.
- Supervised census field teams and monitored data-collection activities.
- Coordinated field operations and ensured proper coverage of assigned areas.
- Supported community mobilization and provided guidance to census enumerators.
- Assisted in ensuring the effective implementation of census activities at the field level.
Career History
1. Revenue Administration and Public Finance
Mar 2026 - August 2026, Deputy Commissioner, Strategy, Research and Planning.
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Jan 2025 - Mar 2026, Deputy Commissioner, Internal Affairs (SSRA)
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2020 - 2024, Deputy Commissioner, States Affairs and Non-Tax Domestic Revenue Division (SSRA)
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2021, 3 months. Acting Commissioner, Domestic Tax Revenue Division
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2019 - 2020, Assistant Commissioner, Data Processing and Revenue Reconciliation (SSRA)
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2015 - 2017, Director, Audit, Policy and Procedure (SSRA)
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2008 - 2014, Assistant Director, Revenue Generation (State Revenue Authority, Awiel)
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2. Early Career and Community Development
2006–2007, Project Coordinator – WASH Projects
Barh el Ghazal Youth Development Association (BYDA) | Nyamlel, Aweil West County, South Sudan
Coordinated Water, Sanitation and Hygiene (WASH) projects implemented by the Barh el Ghazal Youth Development Association (BYDA) in collaboration with Cordaid.
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2007, Field Supervisor – Sudan Population Census
Sudan Population Census, Aweil, Sudan (present-day South Sudan)
Served as a Field Supervisor during the 2007 Sudan Population Census in Aweil.
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Career Development
Angelo's professional progression reflects increasing responsibility in revenue administration, tax policy, financial management, audit, strategic planning, and institutional leadership.
His experience at state, national, and central government levels has provided a broad understanding of revenue systems, fiscal coordination, public financial management, and the operational requirements of effective public institutions.
Professional Contribution
Across his career, Angelo has contributed to revenue mobilization, improved reconciliation and reporting systems, strengthened compliance and accountability mechanisms, and supported institutional reform.
His professional responsibilities have also included multidisciplinary team leadership, stakeholder engagement, policy development, staff mentoring, and technical support to government institutions.
Leadership and Achievements
Explore the leadership responsibilities and professional achievements that have shaped Angelo Aguot Deng Piol's career.
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