The Top 10 Things to Know Before Starting a SaaS Company

Thinking about starting a SaaS company? Nice. Welcome to the world where everyone says “recurring revenue” with a dreamy look in their eyes and quietly forgets to mention the 2 a.m. on-call rotations, churn charts, and the fact that it might take you a decade to feel “established.”

The good news: thousands of founders have already face-planted so you don’t have to. The SaaStr community and other SaaS veterans have shared a ton of hard-earned lessons about timelines, product-market fit, metrics, fundraising, and the emotional roller coaster that comes with building a subscription business. This guide pulls those lessons together and expands them into 10 things you really should know before you start a SaaS company.

If you’re ready to build something durablenot just launch a landing page and hopelet’s walk through what actually matters before you hit “deploy.”

1. It Will Take Longer Than You Think (Seriously)

Let’s rip off the Band-Aid: SaaS is a long game. SaaStr founder Jason Lemkin and other operators repeatedly emphasize that it can easily take 24 months just to get to real traction, and often 7–10 years to build something meaningful at scale.

That doesn’t mean you’ll be miserable for a decade. It means:

• The first 12–18 months are often spent searching for product–market fit, refining your ICP, and figuring out who actually wants this thing.
• Revenue feels painfully slow at first, then compoundsif you survive long enough to let compounding work.
• Your “three-year plan” is probably more like a five-to-seven-year journey.

Before you start, ask yourself:

• Can I commit at least 24 months to getting to strong product–market fit?
• Am I prepared mentally and financially to play a multi-year game?

If your plan is “I’ll try this for 9 months and see how it goes,” you’re basically planning to quit right as things might start working.

2. Product–Market Fit Is Your First (and Only) Job

Founders love features. Investors love decks. Customers love… having their painful problems solved. Your real job in the early days is to find and deepen product–market fit (PMF), not to build the world’s fanciest roadmap.

Modern PMF frameworks break fit into levels: nascent, developing, strong, and extreme. At the early stages, your goal is to move deliberately from “some people tolerate us” to “a clear segment desperately wants us and keeps using us.”

Practical PMF signals in SaaS include:

• High engagement: People log in often without you begging.
• Low logo churn among your ideal segment: The right customers stick around.
• Expansion revenue: Some customers upgrade, add seats, or buy more usage.
• Referrals: Users tell friends or colleagues about you without incentives.

Early on, obsess over:

• Talking to customers weekly (or daily).
• Shipping small, high-impact changes quickly.
• Removing friction instead of adding shiny features.

Growth hacks without PMF are like putting a turbo on a car with no engine. It looks exciting but doesn’t actually go anywhere.

3. You Need a Great CTO, Not Just a “Tech Person”

Many SaaS veterans will tell you the same thing: a mediocre technical co-founder or CTO will quietly kill your startup. You’re building a software company. The technology is not a side quest.

A strong CTO in an early-stage SaaS company:

• Owns the architecture so you don’t spend year three rewriting everything from scratch.
• Understands trade-offs between speed and qualityand communicates them clearly.
• Can talk to customers, not just code in a cave.

If you’re non-technical, don’t treat “I found someone who can code” as the finish line. Look for:

• A history of shipping real products, not just side projects.
• Ability to recruit and mentor other engineers.
• Alignment on values: security, reliability, and long-term ownership.

You can fix bad UI. You can fix pricing. You can pivot away from a weak market. Fixing a bad founding team is much harder.

4. Learn Your SaaS Metrics Before Investors Do

In SaaS, the scoreboard is your metrics. Before you raise a dollar of outside moneyor even if you’re bootstrappedyou need to understand what you’re optimizing for.

Core metrics most guides and finance leaders agree on include: monthly recurring revenue (MRR), churn, customer acquisition cost (CAC), customer lifetime value (LTV), and retention.

At a high level:

• MRR / ARR: How much predictable revenue you have.
• Churn: The percentage of customers or revenue you lose each month or year.
• CAC: How much it costs to acquire a paying customer.
• LTV: The total value you earn from a customer over their relationship with you.
• LTV:CAC: A key ratio; healthy SaaS companies often aim for at least 3:1.

You don’t need a full finance team on day one, but you do need:

• Consistent definitions (no changing how you calculate churn every month).
• A simple spreadsheet or dashboard you actually review.
• Enough data discipline to know whether your experiments are working.

Investors will eventually ask you for these numbers. The most confident founders are the ones who already live in them.

5. Founder-Led Sales Is Not Optional at the Start

In the early days, there is no magical VP of Sales who will “figure it out” for you. Multiple SaaStr playbooks emphasize that founders must lead sales, especially for B2B SaaS.

Why founder-led sales works:

• You hear objections in real time and can adjust the product and messaging.
• You learn who your real buyer is (not just who you hoped it would be).
• You signal seriousness to early customersthey’re dealing with the person who can actually change the product.

Practical tips:

• Start with a clear hypothesis: “We solve X problem for Y type of company.”
• Do outbound yourselfLinkedIn, email, conferences, your own network.
• Record calls (with permission) and review them like game tape.

You can hire sales leaders later. But if you skip founder-led sales entirely, you’re outsourcing one of the most important learning loops in your company.

6. Narrow Your ICP and Go-To-Market Strategy

One of the most common early mistakes is trying to sell to “everyone with a browser.” Successful SaaS companies usually start with a painfully specific ideal customer profile (ICP) and a focused go-to-market (GTM) motion.

Sales and growth frameworks consistently emphasize: define your target customer, understand their buying journey, and align your pricing, messaging, and channels to that reality.

Ask:

• What size of company gets the most value from usfreelancers, SMBs, mid-market, enterprise?
• Who feels the problem acutely enough to pay soon, not “someday”?
• Where do they already hang outconferences, communities, specific tools?

Then pick a primary motion:

• Self-serve / PLG: Free trial, freemium, strong in-product onboarding.
• Sales-led: Demos, outbound, account executives, and customer success.
• Hybrid: Self-serve start with upgrade paths to sales-assisted plans.

Focus doesn’t mean you’ll never sell outside your ICP. It means you concentrate your limited energy where the odds are stacked in your favor.

7. Capital Is a Tool, Not a Strategy

Here’s an uncomfortable truth: most startups will never raise venture capital, and even among those that do, only a fraction become iconic. Experienced investors and SaaStr content repeatedly stress that VC is hard to access and reserved for a small minority of companies.

More capital doesn’t magically fix:

• Lack of product–market fit.
• A confused ICP.
• Weak retention or poor unit economics.

What capital can do:

• Let you hire key roles earlier (engineering, sales, support).
• Accelerate go-to-market once you know it works.
• Provide runway to experiment more aggressively.

Whether you’re bootstrapped, revenue-funded, or venture-backed, your goal is the same: build a business where customers stick around and the money they bring in exceeds the money you spend to get and keep them. No term sheet changes that underlying math.

8. Retention and Customer Success Are Your Real Growth Engine

In SaaS, acquisition gets the headlines; retention pays the bills. Modern benchmarks suggest that early-stage SaaS companies should aim for monthly churn below ~5%, tightening over time, and that strong businesses often target high net revenue retention (NRR), sometimes 110–120%+.

Translation: if you’re constantly refilling a leaky bucket, you’re not really growing.

Practical retention levers:

• Onboarding that gets customers to “first value” fast.
• Proactive customer success for higher-value accounts.
• Regular check-ins and QBRs for B2B products.
• Predictive churn signals (declining logins, lower usage, unpaid invoices).

The magic of SaaS is compounding revenue. Retention and expansion are what make that compounding actually happen.

9. Treat Pricing and Packaging as a Strategic Weapon

Many founders treat pricing like a one-time chore: “We’ll just copy Competitor X and move on.” But SaaS operators and growth experts repeatedly highlight pricing and packaging as one of the most powerfuland underusedlevers you have.

Key principles:

• Align price to value: Charge based on something that scales with usage or value (seats, usage volume, projects, etc.).
• Avoid overcomplicated tiers: Usually 3–4 well-defined tiers is enough.
• Leave room for expansion: Add-ons, higher tiers, or usage-based components.

Don’t be afraid to:

• Raise prices once you have strong retention and clear ROI.
• Experiment with annual plans to improve cash flow.
• Offer discounts strategically, not as your default move.

You can’t “growth hack” your way out of bad pricing. Get this roughly right early, then keep iterating.

10. Your Role as Founder Will Keep Changing

In year one, you’re the salesperson, customer success rep, product manager, support agent, and part-time QA department. As you grow, your job shifts toward hiring, alignment, culture, and making a few big calls with incomplete information.

Common transitions:

• 0 → $1M ARR: Founder-led sales, deep customer discovery, lots of hands-on work.
• $1M → $5M ARR: Hiring functional leaders; putting in basic processes and metrics.
• $5M+ ARR: More time on strategy, capital, executive team quality, and culture.

Many SaaS veterans warn about two traps:

• Trying to do everything forever: You become the bottleneck.
• Letting go too quickly: You delegate critical functions before they’re stable.

The founders who stick around are the ones willing to reinvent themselves every 12–18 months as the company evolves.

Bonus: Real-World Experiences and Lessons from the Trenches

Advice is great; stories are better. To make this more concrete, let’s walk through some realistic experiences that mirror what many SaaS founders and operators share.

Month 1–6: The “Everyone Is Our Customer” Phase
You and your co-founder launch a product that “helps teams collaborate better.” That’s it. That’s the pitch. You talk to agencies, startups, e-commerce stores, and a non-profit. Everyone says, “Looks cool.” Nobody pays.

The turning point comes when you notice a pattern: small marketing teams at B2B startups keep complaining about the same content-approval bottleneck. You narrow your ICP to B2B marketing teams with 5–50 employees, refocus messaging, and suddenly your demos feel less like guesses and more like conversations.

Month 6–18: The “Founders Do Sales” Era
You’re hopping between product calls and sales demos like a caffeinated squirrel. You send cold emails. You run LinkedIn outreach. You attend one small conference where you stand at a booth that looks suspiciously like a glorified Ikea shelf.

But you learn:

• Most deals die not because the prospect hates you, but because they don’t have a clear internal owner.
• “Looks interesting, maybe next quarter” is code for “You haven’t convinced me this is urgent.”
• Trial users who don’t hit value in the first week rarely convert later.

You tighten onboarding, add a simple checklist in the product, and personally jump on calls with new customers. Conversion improves, not because your product magically changed, but because your activation did.

Year 2–3: Metrics, Reality Checks, and Pricing Guts
At some point, your spreadsheet gets real. You realize:

• Your monthly logo churn is ~6%too high.
• Your CAC payback period is creeping past 24 months.
• Your cheapest plan is full of demanding customers who churn quickly.

This is where many founders either panic or grow up. The ones who grow up:

• Raise prices to reflect real value.
• Retire a too-cheap plan that attracts the wrong segment.
• Invest in customer success instead of just more top-of-funnel marketing.

It’s uncomfortable to email customers about a price increase. But when you can clearly show ROI and communicate well in advance, many will accept itor even stick around on grandfathered terms while new customers pay more.

Fundraising Reality vs. Twitter Fantasy
Maybe you decide to raise capital. On social media, it looks like everyone is closing a seed round in 12 days based on a Notion doc and a dream. In reality, you talk to 40+ investors, get a dozen polite “not now” responses, and three serious conversations.

The investors who lean in don’t just ask, “How big is your market?” They drill into:

• Your churn and retention by cohort.
• Whether your LTV:CAC is trending in the right direction.
• How concentrated your revenue is across customers.

Even if you don’t close a round, this process forces you to understand your own business in a deeper way. You refine your narrative, clean up your metrics, and clarify what “good” looks like for your next 12–18 months.

Leadership Growing Pains
As ARR grows, you hire your first managers. Suddenly, your day is full of 1:1s, strategy reviews, and message threads titled “Quick question” that are never quick.

You make classic mistakes:

• Hiring a senior leader too early without clear expectations.
• Not setting written goals, then being surprised when teams misalign.
• Assuming culture will “just happen” if you hire nice people.

Over time, you learn:

• To say “no” more oftento features, partnerships, and even customers.
• To communicate the same priorities repeatedly until you’re personally bored (right about when the company finally understands them).
• To design systems instead of heroically fixing everything yourself.

None of this feels glamorous in the moment. But looking back, these are the quiet, compounding decisions that separate enduring SaaS companies from the ones that burn bright and disappear.

The overarching experience shared by many founders is this: SaaS rewards the stubbornly patient. If you’re willing to iterate, listen, and keep going when it’s hardnot just when it’s excitingyou give yourself a real chance to build something that lasts.

Final Thoughts

Starting a SaaS company isn’t about finding a perfect idea and gliding to $100M ARR. It’s about committing to a long journey, learning faster than your competitors, and caring deeply about the people who trust your product to do something important for them.

If you remember nothing else, remember this:

• Give yourself enough timeat least 24 months to get real traction.
• Chase product–market fit, not vanity metrics.
• Obsess over retention and value, not just signups.
• Know your numbers better than anyone else in the room.
• Be ready to reinvent yourself as a founder as your company grows.

Do that, and you won’t just be “starting a SaaS company.” You’ll be building a durable, compounding engine of valuefor your customers, your team, and yourself.