Accounting Services
Reliable day-to-day nonprofit accounting support that improves accuracy, strengthens processes, and gives leadership timely, compliant financial information for oversight and decision-making.
Get nonprofit-focused accounting support built for New York City organizations that need accurate reporting, stronger controls, and clearer financial visibility. From board-ready statements to budgeting and system optimization, One Abacus Advisory helps mission-driven teams stay compliant, make confident decisions, and manage the pace and complexity common across NYC funding, grant, and oversight environments.

Specialized accounting, reporting, and finance support designed for nonprofit organizations with evolving operational and compliance needs.
Reliable day-to-day nonprofit accounting support that improves accuracy, strengthens processes, and gives leadership timely, compliant financial information for oversight and decision-making.
Strategic oversight for budgeting, forecasting, cash flow management, and board-ready reporting so nonprofit leaders can make informed, mission-aligned financial decisions.
Comprehensive review of accounting people, processes, and systems to identify risks, gaps, and inefficiencies, followed by actionable recommendations to improve controls.
Enhancement of ERP and accounting platforms through configuration, workflow improvements, reporting upgrades, and training to increase efficiency and reporting confidence.
Practical budgeting frameworks and cash forecasting tools that help nonprofits monitor performance, plan responsibly, and maintain financial stability throughout the fiscal year.
Executive-level financial leadership without a full-time hire, supporting compliance, audit readiness, strategic planning, and sustainable resource allocation for nonprofits.
One Abacus Advisory delivers nonprofit accounting services that help organizations improve reporting accuracy, strengthen internal controls, and support better leadership decisions. For New York City nonprofits balancing grant requirements, board expectations, and fast-moving operating demands, the firm provides practical financial guidance, scalable systems support, and experienced oversight that keeps accounting functions organized, compliant, and aligned with mission goals.

See how nonprofit organizations benefit from stronger reporting, systems, and financial leadership support.
Nonprofits rely on experienced guidance that supports both compliance and long-term stability.
Specialized experience supporting nonprofit accounting, reporting, compliance, and board-level financial decision-making.
Right-sized accounting leadership for New York City nonprofits without the cost of full-time executive hires.
Board-ready financial insights that help leadership act confidently in complex NYC funding environments.
Improves processes, controls, and accounting platforms to reduce risk and increase operational efficiency.
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.
The best accounting software for a small nonprofit depends on reporting needs, grant complexity, and internal capacity. QuickBooks Online can work well for simpler operations, while Sage Intacct or NetSuite may be better for organizations needing stronger fund tracking, multi-entity reporting, or board-level dashboards. A proper assessment should review chart of accounts structure, grant restrictions, approval workflows, and reporting requirements before choosing a platform.
Talk with an experienced advisor about your organization’s financial needs.
Deep finance and accounting leadership background.
Focused support for mission-driven organizations.
Senior-level support without full-time overhead.
Share your organization’s accounting challenges, goals, and timeline, and we’ll outline the right next steps for 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.