When to hire a full-time CFO vs when a fractional one is enough

The CFO question every growing startup faces

At some point between seed and Series B, every founder asks: do I need a full-time CFO? The honest answer is: probably later than you think — and a fractional CFO gets you 80% of the value at 20% of the cost for longer than most founders expect.

What a full-time CFO actually does

A good CFO at a growth-stage startup does five things: investor relations and board reporting, financial planning and modelling, banking and debt relationships, team leadership, and strategic input on major decisions. Of these five, the first three can be handled effectively by a fractional CFO who is deeply embedded in the business. The last two require full-time presence.

You need a full-time CFO when

• You have a finance team of 3+ people who need a senior leader on-site daily
• You are in active M&A discussions requiring 40+ hours per week
• Your board has explicitly required a full-time CFO as a condition of the round
• Revenue is above ₹100Cr and financial complexity has outgrown a part-time engagement

Fractional is enough when

• You are pre-Series B with a finance team of 1–2 people
• Your primary need is investor MIS, fundraise prep, and banking — not daily team management
• You want CFO-level thinking at ₹25–60K/month rather than ₹12–20L/year

The right question is not "do I need a CFO?" It is "what specifically do I need from a CFO right now?" Answer that first — and the decision becomes obvious.