Accounting Services
Reliable day-to-day nonprofit accounting support that strengthens processes, improves reporting accuracy, and gives leadership and boards timely financial information for effective oversight.
Get nonprofit accounting support built for clear reporting, stronger controls, and confident decision-making. One Abacus Advisory helps Seattle organizations manage budgets, cash flow, and compliance with practical guidance that fits local funding cycles, board expectations, and the operational demands common across the Puget Sound nonprofit community.

From daily accounting support to strategic oversight, we help nonprofits build accurate, compliant, and decision-ready financial operations.
Reliable day-to-day nonprofit accounting support that strengthens processes, improves reporting accuracy, and gives leadership and boards timely financial information for effective oversight.
Oversight of budgeting, forecasting, cash flow monitoring, and financial statement preparation to keep nonprofit accounting operations consistent, compliant, and useful for strategic decisions.
A comprehensive review of accounting people, processes, and systems to identify risks, gaps, and inefficiencies, followed by practical recommendations for stronger controls.
Improvement of existing accounting platforms through configuration, workflow automation, reporting enhancements, and training so nonprofit finance teams can work more efficiently.
Practical budgeting frameworks and cash forecasting tools designed around nonprofit financial cycles, helping leadership make informed resource decisions throughout the year.
Experienced controller and finance director support that bridges daily accounting execution with stronger reporting integrity, internal controls, and leadership visibility.
One Abacus Advisory delivers nonprofit accounting services that improve accuracy, reporting clarity, and internal control without adding unnecessary overhead. We help Seattle organizations create dependable financial processes, support board-ready reporting, and strengthen systems for audits, grants, and growth. Whether your team needs steady day-to-day support or senior financial guidance, our approach stays practical, flexible, and aligned with your mission.

See how experienced financial leadership helps nonprofits improve reporting, stability, and operational confidence.
Nonprofits choose us for experienced, flexible financial leadership tailored to real operational needs.
Our work centers on nonprofit finance, reporting, compliance, and mission-aligned decision support.
Seattle nonprofits get right-sized accounting leadership without the cost of a full-time executive hire.
We turn complex financial data into clear reporting leaders and boards can act on.
From accounting workflows to platform optimization, we help Puget Sound organizations improve financial reliability.
Experienced nonprofit finance guidance, 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.
Nonprofit accounting services typically include transaction oversight, financial statement preparation, budgeting, cash flow monitoring, month-end close support, internal controls, and board-ready reporting. For many organizations, services also extend to accounting system reviews, audit preparation, grant tracking, and compliance support. The goal is to create accurate, timely financial information that helps leadership and boards make sound decisions.
Talk with our team about your nonprofit's accounting needs.
Deep finance and accounting leadership background.
Focused support for mission-driven organizations.
Senior guidance without full-time overhead.
Share your current accounting challenges, reporting needs, or transition goals, and we'll outline practical 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.