---
title: "What Is Fixed Cost?"
term: "Fixed Cost"
description: "Fixed costs are expenses that stay relatively constant regardless of short-term sales volume—rent, core salaries, insurance—until the company structurally changes its operating plan."
date: 2026-07-25T00:00:00.000Z
updated: 2026-07-25T00:00:00.000Z
topics: ["venture-capital"]
source: https://venturecapitaltracker.com/glossary/fixed-cost
---

# What Is Fixed Cost?

> Fixed costs are expenses that stay relatively constant regardless of short-term sales volume—rent, core salaries, insurance—until the company structurally changes its operating plan.

**Fixed costs** are operating expenses that do not fluctuate proportionally with revenue in the near term—committed spending a company bears whether it sells ten units or ten thousand, until management restructuring changes the baseline.

### How it works

Examples include office rent, platform infrastructure baseline, executive compensation, and core R&D headcount. **Variable costs**—hosting tied to usage, sales commissions, payment processing—scale with activity. Startups with heavy fixed layers exhibit high **operating leverage**: small revenue beats drive outsized profit improvements, but misses deepen losses fast.

Investors map fixed vs variable when stress-testing [burn rate](/glossary/burn-rate) and path to profitability. [Capex](/glossary/capex) purchases long-lived assets; their depreciation becomes fixed non-cash charge. Down rounds often trigger fixed cost cuts—layoffs and office exits—because variable trims alone insufficient.

Unit economics slides sometimes mislabel semi-variable costs (customer success at step functions) as purely variable—diligence reconciles to cash.

### Why it matters

- **Founders:** Add fixed cost deliberately after repeatable revenue; keep flexibility with contractors and cloud scaling where possible early.
- **Investors:** High fixed cost structures need larger rounds and longer runway; compare efficiency to peers at similar scale.

### Common mistake

Calling all payroll fixed. Sales and success headcount tied to quotas behave variably—segment costs honestly in board decks.

### Related ideas

See [burn rate](/glossary/burn-rate), [capex](/glossary/capex), operating leverage, and contribution margin.

## FAQ

### What is fixed cost in simple terms?

Costs you pay whether you sell a lot or a little this month— like office lease and base engineering payroll— as opposed to costs that rise directly with each sale.

### Why does fixed cost matter?

High fixed costs mean you need more revenue to break even and burn cash faster if growth stalls. Investors prefer models where variable costs scale and fixed layers grow deliberately.


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Source: https://venturecapitaltracker.com/glossary/fixed-cost