Accounting Services
Reliable day-to-day accounting support for nonprofits, including core financial functions, stronger processes, and timely reporting that helps leadership and boards make informed decisions with confidence.
Get nonprofit-focused back office support that strengthens accounting operations, reporting, systems, and IT workflows without adding full-time overhead. One Abacus Advisory helps mission-driven organizations improve financial clarity, streamline technology, and build reliable internal infrastructure so leaders can stay focused on programs, compliance, and long-term sustainability.

Comprehensive nonprofit accounting and IT support designed to improve accuracy, efficiency, reporting, and internal systems.
Reliable day-to-day accounting support for nonprofits, including core financial functions, stronger processes, and timely reporting that helps leadership and boards make informed decisions with confidence.
Oversight of budgeting, forecasting, cash flow monitoring, and financial statement preparation to keep nonprofit accounting operations accurate, compliant, and aligned with organizational priorities.
A structured review of accounting people, processes, and platforms to identify risks, inefficiencies, and control gaps, followed by practical recommendations for stronger financial operations.
Configuration, workflow improvements, reporting enhancements, and training for ERP and accounting platforms so nonprofit teams can work more efficiently and reduce manual errors.
Payroll system setup and optimization that improves accuracy, supports compliance, and connects payroll processes more effectively with HR and accounting functions.
Senior-level CFO, COO, controller, and finance leadership support that strengthens oversight, internal controls, and operational decision-making without a full-time executive hire.
Back office services should do more than keep tasks moving. One Abacus Advisory helps nonprofits build dependable accounting workflows, clearer reporting, and better-connected IT systems that reduce friction across the organization. From day-to-day finance support to system optimization and executive oversight, the focus is on creating practical infrastructure that improves compliance, visibility, and mission-aligned decision-making.

See how nonprofits strengthen reporting, systems, and leadership support with experienced back office guidance.
Nonprofits rely on us for practical financial leadership and operational support that fits real-world organizational needs.
Dedicated nonprofit expertise across accounting, reporting, operations, and mission-driven organizational planning.
Fractional, right-sized services help organizations access senior expertise without full-time overhead.
Board-ready financial insights improve transparency, governance, and confident leadership decision-making.
Hands-on experience optimizing accounting platforms and strengthening internal controls for smoother operations.
Experienced advisors serving nonprofit organizations nationwide.

Founder, Consulting CFO
Lorin Port is the Founder and Consulting CFO of One Abacus Advisory, bringing over 25 years of finance and accounting experience to the nonprofit sector. With a dedicated focus on nonprofit financial leadership for the past nine years, Lorin specializes in fractional CFO and COO services, nonprofit accounting, and NetSuite optimization. He has partnered with prominent organizations such as the San Diego Food Bank, Philadelphia Zoo, and Laguna Playhouse, delivering strategic financial guidance during periods of growth, transition, and complexity. Lorin is committed to empowering nonprofit leaders and boards with clear, actionable insights that drive stronger decisions and long-term organizational health. His flexible, right-sized approach ensures each client receives tailored support that aligns with their unique mission and operational needs.
Back office support handles the internal functions that keep an organization running smoothly, including accounting, financial reporting, payroll systems, internal controls, technology workflows, and administrative processes. For nonprofits, this often also includes budgeting, cash forecasting, board-ready reporting, compliance support, and system optimization so leadership can focus more time on programs, fundraising, and mission delivery.
Talk with our team about your nonprofit's accounting and IT needs.
Deep finance and accounting leadership background.
Specialized support for mission-driven organizations.
Experienced with nonprofit system improvements.
Tell us about your nonprofit's accounting, reporting, or systems challenges, and we'll help you identify the right next step.
For immediate assistance, feel free to give us a direct call at +1 760-845-3808. You can also send us a quick email at lorin@oneabacusadvisory.com.
For immediate assistance, feel free to give us a direct call at +1 760-845-3808. You can also send us a quick email at lorin@oneabacusadvisory.com.