Accounting Services
Reliable day-to-day nonprofit accounting support that improves accuracy, strengthens internal controls, and delivers timely financial information leadership and boards can use with confidence.
Get nonprofit-focused accounting and bookkeeping support designed for California organizations that need accurate reporting, stronger controls, and clearer financial visibility. From monthly close and board-ready statements to system optimization and cash forecasting, One Abacus Advisory helps mission-driven teams stay compliant, organized, and prepared for audits, grants, and growth across the state.

Comprehensive accounting, reporting, and financial systems support tailored to the needs of nonprofit organizations.
Reliable day-to-day nonprofit accounting support that improves accuracy, strengthens internal controls, and delivers timely financial information leadership and boards can use with confidence.
Oversight of budgeting, forecasting, cash flow monitoring, and financial statement preparation to keep nonprofit finance operations consistent, compliant, and decision-ready.
A structured review of accounting people, processes, and platforms to identify risks, gaps, and inefficiencies, followed by practical recommendations for improvement.
Enhancement of existing accounting and ERP platforms through configuration, workflow improvements, reporting upgrades, and training for stronger nonprofit finance performance.
Custom budgeting frameworks and cash forecasting tools that help nonprofit leaders manage fiscal cycles, monitor performance, and make informed resource decisions.
Hands-on senior finance leadership that bridges bookkeeping and executive oversight, improving reporting integrity, compliance, and day-to-day financial management.
One Abacus Advisory provides California nonprofits with dependable accounting and bookkeeping support that goes beyond basic transaction processing. The focus is on accurate monthly reporting, stronger internal controls, cleaner systems, and practical financial visibility for leadership and boards. Whether your organization is managing restricted funds, preparing for an audit, or navigating California's complex funding and compliance environment, the work is tailored to support stability and mission growth.

See how nonprofit organizations benefit from stronger reporting, systems, and financial leadership.
Nonprofits choose a partner that understands both accounting detail and mission-driven decision-making.
Specialized support built around nonprofit reporting, compliance, grants, and board oversight needs.
Right-sized accounting leadership for California organizations without the cost of full-time executive hires.
Clear, actionable financial reporting that helps leaders and boards make confident decisions statewide.
Backed by over 25 years of finance and accounting experience across complex nonprofit environments.
Experienced nonprofit finance leadership you can trust.

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.
Nonprofit accounting and bookkeeping services typically include transaction coding, account reconciliations, monthly close, financial statement preparation, budget tracking, cash flow monitoring, and support for board reporting. For nonprofits, the work also often includes fund tracking, grant-related reporting, internal control improvements, and preparation for audits or compliance reviews so leadership has accurate, timely financial information.
Talk with our team about your nonprofit's accounting needs.
Extensive finance and accounting leadership experience.
Focused expertise for mission-driven organizations.
Flexible executive-level financial support.
Share your organization's needs and we'll help you explore the right accounting and bookkeeping support.
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.