Accounting Services
Reliable day-to-day nonprofit accounting support that strengthens processes, improves reporting accuracy, and gives leadership timely, compliant financial information for better oversight and decision-making.
Get nonprofit accounting support built for clear reporting, stronger controls, and confident decision-making. One Abacus Advisory helps Chicago organizations manage budgets, cash flow, and board-ready financials with flexible senior-level guidance that fits local funding cycles, audit demands, and the pace of mission-driven work across Illinois.

Flexible accounting and financial leadership services tailored to nonprofit reporting, compliance, systems, and planning needs.
Reliable day-to-day nonprofit accounting support that strengthens processes, improves reporting accuracy, and gives leadership timely, compliant financial information for better oversight and decision-making.
Oversight of budgeting, forecasting, cash flow monitoring, and financial statement preparation to keep nonprofit accounting operations accurate, consistent, and aligned with organizational goals.
A comprehensive review of accounting people, processes, and systems to identify risks, gaps, and inefficiencies, followed by practical recommendations to improve controls and reporting.
Enhancement of nonprofit accounting platforms through configuration, workflow automation, reporting improvements, and training to increase efficiency, accuracy, and team confidence.
Practical budgeting frameworks and cash forecasting tools designed around nonprofit financial cycles, helping leaders make informed resource decisions throughout the fiscal year.
Experienced controller and finance director support that bridges daily accounting execution with stronger reporting, internal controls, and board-level financial management.
One Abacus Advisory delivers nonprofit accounting services that improve accuracy, visibility, and financial confidence without requiring a full-time executive hire. From monthly reporting and cash forecasting to system optimization and internal controls, the work is tailored to mission-driven organizations. For Chicago nonprofits managing grant restrictions, board expectations, and Illinois reporting demands, that means practical support that keeps finances organized and leadership informed.

See how nonprofit leaders gain clarity, stability, and stronger financial operations with experienced advisory support.
Nonprofits choose One Abacus Advisory for experienced, flexible financial leadership tailored to mission-driven organizations.
Specialized nonprofit accounting expertise supports compliant reporting, restricted funds tracking, and mission-aligned financial decisions.
Right-sized engagement models help Chicago nonprofits access senior guidance without adding full-time overhead.
Clear, actionable reporting helps executives and boards make confident decisions during audits, growth, and transitions.
Experience with accounting systems and workflows helps Illinois organizations improve controls, efficiency, and reporting consistency.
Experienced nonprofit finance leadership, tailored to your mission.

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 system for a nonprofit is one that supports fund accounting, grant tracking, budget-to-actual reporting, audit readiness, and clear financial statements for leadership and boards. Platforms like QuickBooks Online, Sage Intacct, and NetSuite are common choices, but the right fit depends on transaction volume, reporting complexity, and internal workflows. A system assessment helps identify the strongest option.
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 guidance without full-time overhead.
Share your current accounting challenges, reporting needs, or system concerns, and we’ll outline practical next steps for your organization.
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.