How Much Does It Cost to Build a SaaS Product?

Last spring a founder sent us three quotes for “the same SaaS.” One was $12k. One was $95k. One was $310k. All three vendors were reputable. None of them were lying.

They just weren’t building the same thing.

The $12k quote was a Bubble app with Stripe Checkout and a prayer. The $95k quote was a custom Next.js product with orgs, billing, and an admin you’d actually use. The $310k quote assumed SSO, two native apps, a usage-metering engine, and a SOC 2 checklist nobody had asked for yet. Same pitch deck language — “MVP,” “platform,” “scalable” — completely different invoices.

If you’ve been googling “how much does it cost to build a SaaS” and getting every number from $500 to half a million, that’s why. The word SaaS swallowed too many meanings. What follows is how we untangle it for clients in 2026, with ranges that match what we see in proposals and what keeps showing up in practitioner write-ups from Team Seven, TinyCTL, Continuum, and a lot of founder post-mortems on Medium.

Start with the path, not the feature list

Before you compare day rates, decide how the first version gets built. The path changes the number more than whether you use Postgres or Mongo.

That first row is not a meme anymore. People really do ship thin products with Cursor, Claude, and Stripe for under a thousand dollars in tooling. I’ve watched it happen. I’ve also watched those same founders spend the next three months firefighting webhook failures at 11pm because there was nobody else to call. If that’s not your idea of a good time, don’t budget like a solo technical founder when you aren’t one.

The band we see most often for a serious first B2B product — auth, one core workflow, subscription billing, a basic admin — sits around $30k–$60k with a small senior team. Below about $15k from a vendor, you’re usually buying a template with nicer fonts. Above $80k before anyone has paid you, someone probably stuffed native apps, “AI everywhere,” or compliance theater into a scope that didn’t need it yet.

What the money actually buys

People imagine the invoice as “frontend + backend.” In a real boutique build it looks closer to this, and it matches the breakdowns published teams keep sharing:

• Roughly 45% goes to the product users touch — screens, flows, empty states that don’t feel broken
• About 12% goes to admin and internal tools (founders forget this exists until week six, then panic)
• Around 10% is auth, billing, transactional email — the boring glue that has to work
• Another 8% is QA that isn’t “the founder clicks around on Friday afternoon”
• The rest is design, infra, project glue, and buffer for the integration that always takes longer than the slide said

Hosting almost never blows the budget at MVP scale. Most early products run fine on $30–$100 a month: Vercel or Railway, managed Postgres, Clerk or Supabase Auth, Resend, Sentry. The painful invoice is people — especially in the month after launch, when real users ask real questions and “can it also export to Excel?” stops being hypothetical.

We tell clients to plan 15–50% of the build cost in year one for maintenance, hardening, and the features the first ten customers actually begged for. Teams that budget “build once, done” still spend that money. They just spend it as emergency retainers with worse leverage.

The stuff that moves the number more than your tech stack

Scope dressed as “one more screen.” A ten-page marketing site with a login is cheap. A two-screen tool that reconciles usage against invoices, handles failed payments, and doesn’t leak tenant data is not. Count edge cases and failure modes, not Figma frames. I’ve seen “simple dashboards” that cost more than “complex apps” because the dashboard had to be correct.

Who shows up after the deck. A squad that already ships together will beat a pitch team of seniors and a delivery bench of whoever was free that sprint. You pay for calendar either way. One version of that calendar writes software. The other translates your product into tickets for people you’ll never meet.

Integrations. “We’ll connect Salesforce” is not a bullet point. It’s a product with auth, sync failures, rate limits, and a support surface. Spike it before it lands in the SOW. If the vendor smiles and says “no problem” without asking how your CRM is actually used, that’s a smell.

AI as a feature vs AI as the product. A prompt box is a weekend. Retrieval over their messy data, evals, and a sane fallback when the model is wrong is a quarter. If the feature has to be trusted — not just delightful in a demo — price it like platform work.

Compliance. Logging, audit trails, and SSO designed in from week two is a few sprints. Bolting them on after a Series A security review is a rewrite that somehow still gets called a “phase two.”

A story we keep seeing

A logistics founder came in wanting “Uber for freight, but for SMBs.” The first wishlist had driver apps, shipper apps, a marketplace, dynamic pricing, and a partner portal. We cut it to one job: a shipper posts a load, three vetted carriers get a notification, someone accepts. No apps — responsive web. No dynamic pricing — a simple quote. Eight weeks later they had paying users. The marketplace stuff showed up six months after that, funded by revenue instead of hope.

That’s the cost conversation nobody puts in a pricing table. The cheapest SaaS is often the one you refuse to overbuild.

A number you can take to a raise (or a spouse)

If you’re buying a custom B2B MVP — sign-up, one job done well, Stripe, a thin admin, staging from week one — a defensible 2026 range with a senior team is $30k–$80k over 10–14 weeks. Lean validation can sit under that. Multi-tenant org billing, heavy integrations, or regulated data pushes you toward $50k–$100k+ before you’ve earned the right to call it “v1.”

Anyone quoting a single confident number before you’ve named the job is selling certainty, not a forecast. Bring the workflow, the must-have integration, and who will sit with the first users. Then the range gets honest — and usually smaller than the scary quote, because half the scary quote was optional.

Related reading: SaaS MVP Development: Complete Guide · How to Choose a Software Development Company