Most startups do not have a budget process. They have a spreadsheet the CEO updated once, a hiring plan the head of engineering keeps in their head, and a board deck that gets rebuilt from scratch every quarter. That works until it does not — usually right around the time the company crosses 30 employees or $5M in revenue, when the lack of a plan starts showing up as missed hires, blown targets, and surprised board members.
A real budget process solves this. It is not complicated. It is just discipline.
Start with each function owner. Every VP or team lead submits a plan that includes: headcount by month (name and role, not just a number), fully-loaded cost per hire (salary + benefits + taxes + equipment, typically 1.3x base), tools and software spend, program spend (marketing campaigns, events, contractors), and any one-time costs.
The CFO or founder consolidates. First-time founders are usually shocked at the total. That is normal — bottoms-up always comes in 20 to 40 percent over what the top-down number should be.
Apply the constraint. If the target is $X in ending ARR and $Y in runway, what does spend need to be? Rule of 40 (growth rate plus EBITDA margin above 40) is a useful benchmark for later-stage companies. For earlier stage, burn multiple (net burn / net new ARR) under 2 is the discipline.
The gap between bottoms-up and top-down is the negotiation. Every function owner defends their line. The CEO makes the cuts. This is the hardest part of the process and the reason most founders avoid it.
One slide, three scenarios: base, upside, downside. Base is the number the team commits to. Upside shows what happens if a specific lever exceeds plan. Downside shows what gets cut if revenue misses by 30 percent — and, crucially, when the founder would raise the next round in that scenario.
Boards do not approve budgets. They approve the trajectory the budget implies. If a board member is uncomfortable with the plan, better to know in December than in March.
A budget with no variance review is a wish. Every month, one meeting, 45 minutes: actuals vs. plan by function, explanation of every line item off by more than 10 percent, and adjustments to forecast if the miss is structural rather than timing.
The pattern that separates disciplined companies from undisciplined ones: variance reviews are attended by the function owners, not just finance. If sales missed the number, the head of sales explains it. If R&D over-hired, the CTO explains it. Accountability is the entire point.
