Most SaaS founders know their MRR. Fewer can state their gross profit margin without opening a spreadsheet. Almost none track how much of that margin is quietly eaten by payment processing fees buried inside cost of revenue, or how much expected revenue disappears through failed payments that never get recovered.

Gross profit and net profit answer two different questions. Gross profit asks: how efficiently is your product delivered? Net profit asks: is the entire business sustainable? Conflating them — or optimizing only for one — leads to decisions that look right on the surface but undermine the business at scale.

This article covers both formulas, what each number includes and excludes in a SaaS context, which one investors focus on at each stage, and where founders most commonly lose gross profit without realizing it.

For a full overview of the metrics that drive SaaS growth, see The Ultimate Guide to SaaS Metrics for Founders.

What is gross profit?

Gross profit is the revenue remaining after subtracting only the direct costs of delivering your product, known as Cost of Revenue (or COGS, Cost of Goods Sold).

Formula: Gross Profit = Revenue − Cost of Revenue (COGS)

Example. A SaaS company generates $200,000 in monthly revenue. Its cost of revenue — hosting, third-party APIs, payment processing fees, and customer support directly tied to delivery — totals $40,000.

• Gross Profit = $200,000 − $40,000 = $160,000
• Gross Margin = ($160,000 / $200,000) × 100 = 80%

Gross profit tells you how much revenue is left to fund the rest of the business before operating costs are deducted. In SaaS, a high gross margin is both expected and necessary — it is the financial foundation that makes the model attractive to investors.

What is net profit?

Net profit is what remains after subtracting every cost the business incurs: cost of revenue, operating expenses (sales, marketing, R&D, and general and administrative costs, or G&A), interest, and taxes.

Formula: Net Profit = Revenue − Total Expenses (COGS + Operating Expenses + Interest + Taxes)

Or, starting from gross profit: Net Profit = Gross Profit − Operating Expenses − Interest − Taxes

Example (continuing from above):

• Gross Profit: $160,000
• Operating Expenses: Sales & Marketing $80,000 + R&D $40,000 + G&A $25,000 = $145,000
• Interest + Taxes: $5,000
• Net Profit = $160,000 − $145,000 − $5,000 = $10,000
• Net Profit Margin = ($10,000 / $200,000) × 100 = 5%

Net profit is the bottom line. It tells you whether the business as a whole is profitable or loss-making after every obligation is met.

The key difference: what gets counted

✓ = included in the calculation (as starting point or deduction); — = not considered.

The gap between gross profit and net profit is everything it costs to run the business beyond product delivery: operating expenses, interest, and taxes. For most early-stage SaaS companies that gap is large, because these businesses invest heavily in sales and marketing before the revenue base can absorb those costs.

SaaS-specific COGS: what actually counts as cost of revenue

In a manufacturing business, COGS is clear: raw materials, direct labor, production overhead. In SaaS the lines are less obvious, and founders frequently miscategorize costs in ways that distort gross margin.

Costs that belong in SaaS COGS (Cost of Revenue):

• Cloud infrastructure and hosting — AWS, GCP, or Azure costs directly tied to running the product.
• Third-party API and software fees — any license or usage fee required to deliver the service (data providers, mapping APIs, identity verification).
• Payment processing fees — transaction fees charged on every successful payment.
• Customer support directly tied to delivery — staff handling onboarding, technical issues, and core product usage (not general customer success or sales).
• Managed service costs — if you have a services component, the staff time directly delivering it.

Costs that do not belong in SaaS COGS:

• Sales and marketing salaries
• Product development (R&D)
• Executive salaries
• Finance, legal, and HR (G&A)
• Customer success focused on expansion and retention (typically Sales & Marketing or G&A)

The most common miscategorization is including all engineering salaries in COGS rather than separating development (R&D) from infrastructure operations. Development belongs in R&D; only the cost of running and operating the product belongs in COGS. Conflating the two understates gross margin and makes the business look less scalable than it is.

Why SaaS companies have high gross margins but negative net margins

A 75–80% gross margin alongside a −30% net margin is not a contradiction. It is the typical financial profile of a high-growth SaaS company investing aggressively in customer acquisition.

The logic works like this:

1. A high gross margin means every incremental dollar of revenue costs very little to deliver.
2. The business reinvests most of that gross profit into sales, marketing, and R&D to capture customers before competitors do.
3. The result is a large operating expense line that pushes net profit negative — often intentionally.

The benchmarks shift as a company matures:

Source: Lighter Capital, SaaS industry benchmarks, 2025.

An early-stage founder with a −50% net margin should not treat that as a problem if gross margin is healthy and the operating losses are investments in growth rather than structural inefficiency. The question is always whether gross profit is high enough to eventually absorb the operating cost base as revenue scales.

Gross profit vs. net profit: which one do investors look at first?

For early-stage and growth-stage SaaS, gross margin is the primary profitability signal investors examine. Net profit is considered less relevant because growth-stage companies are expected to operate at a loss.

What investors are actually testing with gross margin:

• Are the unit economics viable? A 60% gross margin in a business targeting 80%+ benchmarks signals either a structural pricing problem or uncontrolled infrastructure costs.
• Will the model become profitable at scale? A business with 80% gross margin can mathematically fund a profitable operating structure as revenue grows. A business at 50% gross margin has a much harder path.
• How does CAC payback work? Gross margin feeds directly into Lifetime Value (LTV). Lower gross margin means lower LTV, longer Customer Acquisition Cost (CAC) payback periods, and less efficient capital deployment.

Net profit becomes more relevant at Series B and beyond, where investors apply the Rule of 40: combined growth rate plus profitability margin should exceed 40%. For private SaaS, EBITDA margin is the standard profitability input, though net profit margin is also used. A company growing at 25% YoY needs a profitability margin above 15% to satisfy the rule. At that stage, gross profit alone is no longer sufficient.

How payment costs and failed payments affect your gross profit

Payment processing fees sit inside cost of revenue. For a SaaS company on a standard payment stack, these fees typically range from 1.5% to 3.5% of revenue processed, depending on card type, geography, and processor.

At low revenue this is a rounding error. At scale it adds up fast:

A $300,000 annual line item in cost of revenue is not noise. Every reduction in processing fees — even a fraction of a percent — improves gross margin directly. This is also why fee transparency matters when you model COGS: Waffo Pancake, for instance, charges a flat 3.9% + $0.50 per successful transaction with no monthly fees and no setup costs, so the cost line you put into your COGS is the cost line you actually pay, with no undisclosed FX markup or hidden reserve baked into the rate.

Beyond processing fees, there is a second, less visible drag on gross profit: failed payment recovery. When a renewal payment fails and is not recovered, the customer loses access and the business loses the revenue it expected to earn for that period. A business at $500K MRR with a 3% involuntary churn rate from failed payments loses $15,000/month in expected revenue that never reaches the gross profit line — without showing up anywhere in the expense ledger.

The industry-average first-attempt authorization rate for subscription SaaS is approximately 57% globally (Cashfree, 2024). For every 100 renewal attempts, 43 fail on the first try. Without automatic retry logic on past-due invoices, a meaningful share of those failed attempts end in involuntary churn — revenue that never gets recognized, and gross profit that never gets earned.

As a Merchant of Record, Waffo Pancake collects on Visa and Mastercard, Apple Pay, and Google Pay across 173 countries, and automatically retries failed renewals (the past_due dunning flow) to recover revenue a standard billing stack would write off. Across the Waffo platform, merchants have recorded up to a 45% improvement in payment success rate and recovered about 18% of previously failed orders (based on Waffo platform data). For a business at $500K MRR, that recovery earns back gross profit a standard stack never captures.

Gross profit and net profit benchmarks for SaaS

Gross margin benchmarks (by ARR stage):

Source: OpenView Partners, Bessemer Venture Partners, SaaS industry benchmarks, 2025.

Profitability benchmarks (by maturity):

The Rule of 40 is the clearest combined growth-and-profitability benchmark for SaaS. A company growing at 30% YoY at a −5% profitability margin (score: 25) is underperforming a company growing at 20% with a 25% profitability margin (score: 45) — even though the first company is growing faster.

The bottom line

Gross profit and net profit are not interchangeable. They answer different questions at different stages of a SaaS business.

Gross profit tells you whether the product itself is economically sound. Net profit tells you whether the full business is sustainable. Most early-stage SaaS companies will show strong gross margins and negative net margins — by design, not by mistake, as long as the operating losses are deployed into growth rather than absorbed by structural inefficiency.

The number most founders underestimate is how much of their gross profit is quietly eroded by payment infrastructure: processing fees that add up fast as revenue scales, and failed payments that reduce recognized revenue without showing up anywhere in the expense ledger. Improving authorization rates and recovering failed renewals does not show up as a marketing win or a product release. It shows up where it matters most — in gross profit, and eventually in net margin.

This article is general information, not tax, legal, or financial advice. Tax rates and rules change; verify current requirements with the relevant authority or a qualified advisor before acting.

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