Accounting Services
Reliable day-to-day nonprofit accounting support that improves accuracy, strengthens processes, and gives leadership timely financial information for stronger oversight, cleaner reporting, and better operational decisions.
Get senior-level nonprofit accounting guidance tailored to your organization’s reporting, compliance, and planning needs. One Abacus Advisory helps Ashburn VA nonprofits strengthen financial systems, improve board-ready reporting, and navigate funding, audits, and growth with practical advice that fits Northern Virginia’s fast-moving nonprofit and grant environment.

Strategic nonprofit accounting, reporting, systems, and financial leadership support tailored to strengthen oversight and decision-making.
Reliable day-to-day nonprofit accounting support that improves accuracy, strengthens processes, and gives leadership timely financial information for stronger oversight, cleaner reporting, and better operational decisions.
Executive-level financial leadership for nonprofits that need budgeting, forecasting, cash flow oversight, audit readiness, and strategic guidance without the cost of a full-time CFO.
Comprehensive financial oversight and reporting support that helps nonprofit leaders and boards understand performance, maintain compliance, and make mission-aligned decisions with confidence.
A detailed review of accounting people, processes, and systems to identify risks, inefficiencies, and control gaps, followed by practical recommendations for improvement.
Optimization of nonprofit accounting platforms and workflows to improve reporting speed, internal controls, automation, and staff confidence across the finance function.
Budgeting and cash forecasting tools designed around nonprofit funding cycles, helping organizations plan responsibly, monitor performance, and manage resources throughout the fiscal year.
One Abacus Advisory provides nonprofit CPA and accounting consultation that helps organizations improve reporting, strengthen controls, and plan with confidence. Whether your team needs day-to-day accounting guidance, board-ready financial insight, or system improvements, the support is tailored to your mission and stage of growth. For Ashburn VA nonprofits operating in the broader Northern Virginia funding landscape, that means practical advice grounded in compliance, transparency, and sustainable operations.

See how nonprofit leaders gain stronger reporting, systems, and financial confidence through tailored advisory support.
Nonprofits rely on experienced, flexible guidance that strengthens finance operations without unnecessary overhead.
Specialized nonprofit finance guidance built around grants, boards, compliance, and mission-driven decision-making.
Led by a founder with over 25 years of finance and accounting experience.
Right-sized advisory services for Ashburn VA nonprofits needing executive insight without a full-time hire.
Practical financial insight that helps Northern Virginia-area leaders improve oversight and board communication.
Experienced nonprofit financial 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.
A nonprofit CPA and accounting consultation typically reviews your current financial reporting, accounting processes, internal controls, budgeting practices, and compliance needs. At One Abacus Advisory, consultations are designed to identify gaps, clarify priorities, and recommend practical next steps for stronger reporting, cleaner month-end processes, better board visibility, and improved financial decision-making.
Talk with an experienced advisor about your organization’s financial needs.
Deep finance and accounting leadership background.
Focused expertise for mission-driven organizations.
Flexible executive support without full-time overhead.
Share your organization’s goals, reporting challenges, or compliance concerns, and we’ll help you understand the best next steps.
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.