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The Series A Finance Ops Org Chart Problem: Why Your Structure Is Already Broken

SG

Seth Girsky

January 18, 2026

# The Series A Finance Ops Org Chart Problem: Why Your Structure Is Already Broken

You just closed Series A. The money is in the bank. You're finally hiring—and the first instinct is to bring in a controller and a few accountants.

Then six months later, you realize your finance team can't talk to each other. Reconciliations take weeks. Your fundraising data contradicts your board reporting. Nobody owns revenue recognition. And your controller is drowning in firefighting while strategic planning doesn't exist.

The problem isn't your people. The problem is that you built your **series A financial operations** org chart backward. You designed it around headcount instead of function.

In our work with Series A startups, we've seen this pattern repeatedly. Founders hire for job titles instead of defining the workflows that need to exist. The result is an org structure that feels complete on paper but breaks under the weight of actual scaling.

Let's fix this.

## The Default Series A Org Chart (And Why It Fails)

Here's what most Series A startups do:

1. Hire a Controller
2. Hire an Accountant or AP/AR person
3. Maybe add a FP&A analyst later
4. Hope it all works

This looks reasonable. It has authority (controller), execution (accountant), and analysis (FP&A). But it's built on assumptions that don't hold post-Series A:

**Assumption 1: One person can own accounting AND financial planning.** Controllers are trained for historical accuracy. FP&A requires predictive modeling and scenario analysis. These aren't the same skill set. Your controller will prioritize month-end close because it has a deadline. Strategic forecasting gets deferred.

**Assumption 2: AP/AR is separate from cash management.** Once you hit Series A scale, payables and receivables are no longer administrative—they're treasury functions. Delaying a $50K vendor payment or speeding up customer collections moves your runway. This needs integration with forecasting, not siloed execution.

**Assumption 3: Accounting closes first, then reporting happens.** In a properly structured finance ops team, reconciliation and close happen in parallel with reporting preparation. Waiting to finalize statements before boards see data is a month-old by the time it's useful.

The default structure treats accounting as a back-office function. But post-Series A, accounting *is* operations intelligence. It needs to be connected to everything.

## The Function-First Org Structure (What Actually Works)

Instead of building around job titles, think about the four critical functions that need to exist in **financial operations at scale**:

### 1. Transaction Integrity (The Accounting Spine)

This is your foundation. Every dollar flowing through the company needs to be categorized, reconciled, and auditable. This includes:

- AP/AR execution and aging management
- Bank reconciliation
- General ledger maintenance
- Chart of accounts governance
- Expense policies and enforcement

**The mistake:** Founders often assume one accountant can own this. They can't, not at Series A scale. You need dedicated transaction processing (often 1-2 people) and a manager who owns quality control.

**The right structure:** One person for execution (AP/AR specialist or staff accountant), one person for oversight (usually your controller or a senior accountant who does quality review). The oversight person should spend 40% of their time on this function, not 100%.

### 2. Financial Reporting (The Decision-Making Layer)

Your investors, board, and leadership team need accurate financial statements. Monthly income statement and balance sheet. Quarterly analysis. Annual audits. This function includes:

- Monthly close and financial statement preparation
- Revenue recognition and accrual adjustments
- Reconciliation of subsidiary ledgers
- Board-ready reporting packages
- Investor reporting (including data room updates)

**The mistake:** Controllers often own this because they're the senior accounting person. But controllers should be strategic leaders, not statement jockeys. This work needs a dedicated person—often called a Senior Accountant or Accounting Manager.

**The right structure:** One person owns the month-end close process (with transaction integrity person supporting). They drive the timeline, coordinate reconciliations, and deliver statements by a fixed date (we recommend day 8 of the following month for Series A scale). Your controller reviews and interprets.

### 3. Forward Planning (The Strategic Layer)

This is cash forecasting, unit economics analysis, and scenario modeling. It's where [finance ops](/blog/series-a-financial-operations-the-integration-roadmap-nobody-plans/) meets growth strategy. Functions include:

- 13-week rolling cash forecast
- Monthly variance analysis (actual vs. forecast)
- Unit economics tracking ([SaaS metrics](/blog/saas-unit-economics-the-negative-ltv-blind-spot-founders-miss/), CAC, LTV)
- Scenario modeling (raises, hiring plans, growth assumptions)
- Board financial analysis and KPI tracking

**The mistake:** This gets handed to a FP&A analyst reporting to the CFO or founder. But FP&A people often lack accounting knowledge, so they build models on faulty assumptions. They don't understand what's actually hitting the balance sheet, so their forecasts drift from reality.

**The right structure:** Your FP&A person needs to *report to* the controller or accounting manager, not the founder. They need accounting ground truth as their input. Weekly cadence with the accounting team to validate assumptions. This prevents the "finance team speaks two different languages" problem we see at most Series A companies.

### 4. Compliance & Risk (The Guardian Function)

Post-Series A, compliance becomes real. Tax planning, audit preparation, investor reporting accuracy, financial controls. Functions include:

- Tax planning and quarterly estimated tax management
- Audit preparation and communication with external auditors
- [R&D tax credit](/blog/rd-tax-credits-for-startups-the-payroll-integration-strategy/) identification and documentation
- Financial control procedures and documentation
- Cap table accuracy and option grants

**The mistake:** Founders delegate this to their accountant or assume their CPA firm handles it. But your CPA firm works with historical data after the year ends. Compliance needs to be woven into operations in real time.

**The right structure:** This is usually 20-30% of a controller's time (or accounting manager's time at smaller teams). It's not a full-time role at Series A, but it needs dedicated ownership. Many companies contract this to a part-time CFO or outside accounting firm while building internal capacity.

## The Real Series A Finance Ops Org Chart

Here's what a functional Series A structure actually looks like:

**The Team:**
- **Controller** (1.0 FTE) - Owns financial strategy, reporting interpretation, audit, tax planning. Reports to CEO or CFO.
- **Senior Accountant / Accounting Manager** (1.0 FTE) - Owns month-end close, revenue recognition, financial statement accuracy. Manages transaction team.
- **AP/AR Specialist** (0.5-1.0 FTE) - Executes payables, receivables, bank reconciliation. Handles cash flow mechanics.
- **FP&A Analyst** (0.5-1.0 FTE) - Builds forecasts, tracks unit economics, owns cash analysis. Reports to controller or accounting manager.
- **Finance Operations Coordinator** (0.25-0.5 FTE) - Calendar management, vendor onboarding, policy enforcement, board book compilation. This can often be shared with ops.

**The key structural principle:** The transaction layer and reporting layer feed into planning, which is reviewed by the controller. Compliance is embedded in each layer, not siloed. Information flows up; decisions flow down.

**The headcount reality:** This is roughly 3-4 FTE at full buildout. Many Series A companies start with 2.5 FTE (a controller, a senior accountant, a part-time AP/AR person) and add FP&A and the coordinator as they scale past $5M ARR.

## Common Mistakes in Series A Finance Ops Org Charts

### Mistake 1: Hiring for growth, not structure

Founders often say, "We want to hire someone really strong for this role." So they hire an experienced controller who's used to managing teams, only to realize they don't have a team structure to manage yet. The controller spends 80% of their time in execution instead of strategy.

**Fix:** Define your functions first. Then hire for the specific role, not the pedigree. A strong Senior Accountant who owns close is more valuable than a seasoned controller managing chaos.

### Mistake 2: Skipping FP&A entirely

Many Series A founders think FP&A is a luxury. "We have a spreadsheet. We know our burn." But [cash flow prioritization](/blog/the-cash-flow-priority-trap-why-founders-optimize-the-wrong-metrics/) without proper analysis leads to wrong decisions.

FP&A doesn't need to be a full-time hire initially. It can be 0.5 FTE (your controller spending time on modeling) or outsourced to a fractional CFO partner. But it needs to exist as a function, connected to your accounting truth.

### Mistake 3: Reporting lines that break information flow

When FP&A reports to the founder and accounting reports to the controller, they operate in different universes. Forecasts don't match actuals. Board reporting contradicts operational metrics.

**Fix:** FP&A reports to your accounting leader (controller or senior accountant). Same team. Daily sync on assumptions and actuals.

### Mistake 4: No one owns cash management

At $2M ARR, AP/AR is just invoices. At $20M ARR, it's runway extension. Delaying a $100K vendor payment for 30 days in a tight month can be the difference between fundraising momentum and crisis.

But if AP/AR is a transaction role with no connection to strategy, nobody is actively optimizing cash timing. It's reactive, not strategic.

**Fix:** Your FP&A and accounting manager need visibility into aging reports and payment schedules. Weekly cash sync, not monthly reporting.

## Building Your Org Chart for Real Growth

Here's how to build this the right way:

**Phase 1 (Immediate post-Series A):**
Controller + Senior Accountant + 0.5 FTE AP/AR (shared with ops if needed) + Controller moonlighting as FP&A. This works at $2-5M ARR.

**Phase 2 ($5-10M ARR):**
Add dedicated 0.5 FTE FP&A analyst. Add full-time AP/AR. Add Finance Operations Coordinator.

**Phase 3 ($10M+ ARR):**
Consider adding a Staff Accountant or second Senior Accountant. Upgrade FP&A to full-time. Consider adding a Finance Manager to handle the coordinator + part of AP/AR supervision.

Each phase should be driven by workload, not ego or titles. If your controller is drowning in monthly close, you need that Senior Accountant before you hire FP&A.

## The Integration Piece Nobody Mentions

Hiring the right people in the right roles only works if the processes connect them. You need:

- **Weekly cash sync:** Controller, accounting manager, and FP&A align on cash position, forecast, and next week's needs.
- **Monthly close timeline:** Clear dates for transaction cutoff, reconciliation complete, reporting draft, controller review, board-ready delivery.
- **Quarterly financial analysis:** Actual vs. forecast, variance explanation, assumption updates.
- **Audit readiness:** Continuous documentation, not a year-end scramble.

Without these processes, even the perfect org chart becomes dysfunctional. (This is where most companies fail at [finance ops integration](/blog/the-fractional-cfo-integration-problem-why-hiring-isnt-implementation/).)

## The Bottom Line

Your Series A finance ops org chart isn't about filling headcount. It's about defining the four critical functions that keep a scaling company operational and strategic:

1. **Transaction integrity** - Clear, accurate, auditable data
2. **Financial reporting** - Decision-ready statements and analysis
3. **Forward planning** - Cash forecasting and scenario modeling
4. **Compliance & risk** - Tax, audit, and control readiness

Map your people to these functions, not the other way around. Keep transaction and reporting close together. Connect FP&A to accounting, not floating independently. Embed compliance across the team.

Do this right, and you'll have a finance ops foundation that scales from $5M to $100M ARR without constant restructuring. Get it wrong, and you'll be rebuilding every 18 months.

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## Ready to Audit Your Finance Ops Structure?

If you're post-Series A and wondering whether your finance team is actually built to scale, we can help. Inflection CFO offers a free financial operations audit—we'll review your current structure, processes, and reporting to identify gaps and fix them before they become crises.

[Schedule your free audit today.](/contact)

Topics:

Startup Finance FP&A financial operations Series A Finance Org Structure
SG

About Seth Girsky

Seth is the founder of Inflection CFO, providing fractional CFO services to growing companies. With experience at Deutsche Bank, Citigroup, and as a founder himself, he brings Wall Street rigor and founder empathy to every engagement.

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