Accounting Services
Reliable day-to-day accounting support for small nonprofits, including core financial tasks, stronger processes, and timely reporting that helps leadership and boards make informed decisions.
Get nonprofit-focused accounting support designed for small organizations that need accurate books, stronger reporting, and practical financial guidance without adding a full-time hire. One Abacus Advisory helps mission-driven teams improve compliance, cash visibility, and board-ready reporting with flexible CPA-level support tailored to nonprofit operations.

Flexible nonprofit accounting and financial oversight services built for accuracy, compliance, and stronger decision-making.
Reliable day-to-day accounting support for small nonprofits, including core financial tasks, stronger processes, and timely reporting that helps leadership and boards make informed decisions.
Strategic financial oversight with budgeting, forecasting, cash flow monitoring, and clear reporting designed to improve governance, transparency, and mission-aligned planning.
Comprehensive review of accounting people, processes, and systems to identify risks, control gaps, and inefficiencies, followed by practical recommendations for improvement.
Enhancement of existing accounting platforms through better configuration, workflow improvements, reporting upgrades, and training to increase efficiency and accuracy.
Budgeting frameworks and cash forecasting tools tailored to nonprofit funding cycles, helping organizations plan responsibly and maintain financial stability throughout the year.
Hands-on senior finance leadership that strengthens reporting integrity, internal controls, and day-to-day accounting management without the cost of a full-time executive.
Small nonprofits need more than basic bookkeeping—they need dependable financial information that supports grants, board oversight, and everyday decisions. One Abacus Advisory provides CPA-level accounting guidance tailored to nonprofit operations, helping organizations improve reporting accuracy, strengthen internal controls, and build systems that support sustainable growth without the overhead of a full-time finance department.

See how nonprofits benefit from clearer reporting, stronger systems, and experienced financial leadership.
Nonprofits choose One Abacus Advisory for experienced, flexible financial leadership built around mission needs.
Dedicated nonprofit accounting expertise supports compliance, reporting, and mission-driven financial decision-making.
Right-sized services give small nonprofits senior financial guidance without full-time overhead.
Clear, actionable reporting helps executives and boards make confident governance decisions.
Over 25 years of finance and accounting experience strengthens systems, controls, and reporting.
Experienced nonprofit finance guidance 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.
Small nonprofits usually need core accounting support such as transaction management, monthly reconciliations, financial statement preparation, budget tracking, cash flow monitoring, and board-ready reporting. Many also need help with internal controls, grant tracking, audit preparation, and accounting system improvements. The right setup gives leadership timely, accurate financial information without requiring a full in-house finance department.
Talk with an experienced advisor about your organization’s financial needs.
Seasoned finance and accounting leadership
Focused expertise for mission-driven organizations
Executive guidance without full-time overhead
Share your organization’s needs and we’ll discuss the right accounting, reporting, or advisory support for your team.
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.