Fractional CFO Services in White Plains, NY

Get executive-level financial leadership without the cost of a full-time hire. One Abacus Advisory helps White Plains nonprofits improve forecasting, reporting, compliance, and board communication with flexible CFO support tailored to funding cycles, audits, and growth planning common across Westchester County organizations.

Fractional CFO meeting with nonprofit leadership

Our Fractional CFO Services

Strategic finance support for nonprofits needing stronger reporting, planning, compliance, and leadership without a full-time CFO hire.

Financial Oversight

Executive-level financial oversight covering budgeting, forecasting, cash flow management, and timely reporting so nonprofit leaders can make informed decisions with greater confidence and clarity.

Board Reporting

Board-ready financial analysis and executive collaboration that turns complex numbers into clear insights for governance, planning, and stronger stakeholder communication.

Compliance Controls

Support for audit preparation, internal controls, regulatory compliance, and risk management to strengthen accountability and reduce operational and reporting vulnerabilities.

Budget Forecasting

Practical budgeting frameworks and cash forecasting tools designed around nonprofit funding cycles to improve visibility, resource allocation, and financial stability.

Interim CFO Support

Seamless financial leadership during transitions, staffing gaps, or organizational change to maintain continuity across reporting, close cycles, and strategic priorities.

Financial Operations

Hands-on oversight of day-to-day finance functions, including reporting consistency, cash monitoring, and operational alignment between accounting execution and leadership strategy.

Flexible Executive Support

Strategic Financial Leadership Without Full-Time Overhead

One Abacus Advisory delivers senior financial guidance for nonprofits that need sharper reporting, stronger controls, and better planning without adding a permanent executive salary. For organizations in White Plains and across the broader Westchester area, this means practical support for board reporting, audit readiness, cash visibility, and mission-aligned decision-making that fits real operating demands.

Nonprofit financial strategy session
Trusted Nonprofit Partner

Success Stories

See how nonprofit leaders gain clarity, stability, and stronger financial decision-making with experienced fractional support.

"We chose One Abacus Advisory to provide support to our accounting team while we recruited after our Finance Director departed our organization. Lorin met with me to efficiently assess how best to help our organization. Marjorie, from One Abacus Advisory, was able to step in as our interim Director seamlessly..."

Allyson Tutor
The One Abacus Difference

Why Choose One Abacus Advisory?

Nonprofits rely on us for experienced, flexible financial leadership built around real operational needs.

Nonprofit Focus

Dedicated nonprofit expertise supports funding complexity, governance needs, and mission-driven financial decision-making.

Flexible Support

Right-sized CFO guidance helps White Plains organizations access executive insight without full-time overhead.

Board Clarity

Clear, actionable reporting strengthens board communication, planning discussions, and stakeholder confidence.

Transition Ready

Experienced leadership helps Westchester nonprofits stay steady during audits, growth phases, and staffing changes.

Meet The White Plains Team

Experienced nonprofit finance leadership you can trust.

Portrait of Lorin Port, Founder and Consulting CFO of One Abacus Advisory

Lorin Port

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.

Frequently Asked Questions

How much does an outsourced CFO cost?

Outsourced CFO costs are typically far lower than hiring a full-time executive because you pay only for the level of support you need. Pricing usually depends on scope, reporting complexity, board involvement, audit support, and meeting cadence. For nonprofits, a fractional model is often the most cost-effective way to access budgeting, forecasting, compliance, and strategic financial leadership.

What is an outsourced CFO service?

What does a fractional CFO do for a nonprofit?

When should a nonprofit hire a fractional CFO?

How is a fractional CFO different from a controller or accountant?

Can a fractional CFO help with board reporting and strategic planning?

Do fractional CFO services include audit and compliance support?

How quickly can fractional CFO support start?

Still Have Questions About CFO Support?

Talk with our team about your nonprofit's financial needs.

Trusted & Experienced

Awards and Recognition

25 plus years experience trust badge

25+ Years Experience

Deep finance and accounting leadership experience.

Nonprofit finance specialist trust badge

Nonprofit Finance Specialist

Focused expertise for mission-driven organizations.

Fractional leadership advisory trust badge

Fractional Leadership Advisory

Flexible executive support across transitions.

Talk With a Fractional CFO

Share your nonprofit's goals, challenges, or reporting needs, and we'll outline the right level of financial leadership support.

Contact Us Today

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.