Pricing & Planning5 min read
How Much Does It Cost to Build a SaaS Product?
SaaS budgets are driven by a handful of decisions you can control: scope, team, integrations, compliance and how much you build versus buy. A transparent way to estimate the build and the running costs before you talk to any agency.
Contents
'How much does it cost to build a SaaS?' is one of the first questions every founder asks, and the answers online range so widely that they are almost useless. The reason is simple: the price is not a property of 'SaaS'. It is the result of a handful of decisions you control. Understand those decisions and you can estimate your own budget, compare quotes fairly and spend where it matters.
The formula behind every quote
Almost every build estimate reduces to: cost = team size × duration × blended rate, plus third-party and running costs. Scope determines the duration. Location, seniority and engagement model determine the rate. The rest of this guide is about the things that change those numbers.
What every SaaS needs
Before your unique features, most SaaS products need the same foundation. Each item is cheaper to buy as a service than to build, but each still takes design and integration time:
- Accounts and authentication. Sign-up, login, password reset, passkeys or SSO, and team invitations.
- Organisations and roles. Workspaces, members and permissions: who can see and change what.
- Billing. Plans, trials, upgrades, invoices, taxes and failed-payment handling, usually through a provider such as Stripe Billing.
- Admin and support tools. A back office to look up customers, fix data and handle requests.
- Email and notifications. Transactional email, in-app notifications and preferences.
- Observability. Error tracking, logs, uptime monitoring and product analytics.
- Security basics. Encryption, backups, audit logs for sensitive actions, and secure deployment.
The cost drivers that surprise people
| Driver | Why it costs more than expected |
|---|---|
| Multi-tenancy | Keeping each customer's data isolated touches every query, report and export |
| Complex permissions | Roles, teams and record-level access multiply screens and test cases |
| Integrations | Each external system brings its own data model, limits, errors and maintenance |
| Billing edge cases | Proration, usage-based pricing, taxes, refunds and dunning |
| Reporting | Fast, accurate dashboards over growing data need careful design |
| Compliance | SOC 2, HIPAA or GDPR evidence adds process, logging and documentation |
| AI features | Evaluation, guardrails, cost control and model usage fees, not just an API call |
| Mobile apps | A second and third client surface to design, build, test and release |
Multi-tenancy deserves a note. AWS's guidance on SaaS tenant isolation describes a spectrum from a fully separate 'silo' per customer to a shared 'pool' isolated by mechanisms such as database row-level security. Silos isolate more strongly but cost more to run; pools are efficient but demand discipline. Most new products start pooled and add silos for customers who need them.
Build vs buy: the biggest lever
The quickest way to cut cost and time is to buy everything that does not differentiate you. Authentication, payments, email delivery, file storage, search and analytics are mature services. Your budget should go into the workflow that makes customers choose you. A good team will propose this split explicitly in its scope; if a quote includes building a login system from scratch, ask why.
Phases and where the budget goes
- 01Discovery (1 to 3 weeks). Users, workflows, risks and a written scope with architecture. The cheapest place to change your mind.
- 02Design. User flows and a clickable prototype of the core journey, tested with real users.
- 03Build. The foundation plus the core workflow, delivered in weekly increments.
- 04Launch. Production infrastructure, monitoring, billing go-live, onboarding and support tools.
- 05Iterate. Improvements driven by usage data and customer feedback. This never stops for a healthy SaaS.
Our MVP development guide covers how to cut the first release down to what proves value, and what determines app development cost goes deeper on estimating.
Running costs after launch
A new SaaS can run on modest infrastructure, but costs rise with customers and usage. Plan for these categories:
| Category | Examples | How it scales |
|---|---|---|
| Hosting | Vercel Pro is listed at $20 per seat per month plus usage | Traffic, compute and team size |
| Database and backend | Supabase Pro is listed from $25 per month plus compute and usage | Data volume and load |
| Payments | Stripe's standard US card pricing is 2.9% + 30¢ per transaction | Revenue |
| Email, monitoring, analytics | Transactional email, error tracking, product analytics | Users and events |
| AI usage | Model API tokens or GPU hosting | Requests and prompt size |
| Maintenance and improvement | Updates, security patches, fixes, new features | Product ambition |
Prices above are taken from the providers' published pricing at the time of writing; see Vercel, Supabase and Stripe for current rates in your region.
How to compare quotes
- Ask for the scope in writing, with what is included and excluded.
- Ask for the team and weeks behind the number, not just a total.
- Check who owns the code, designs and accounts. It should be you.
- Ask how changes to scope are handled and priced.
- Ask to see working software every week, not only at milestones.
Our guides on how to choose an app development company and freelancer vs agency vs in-house cover the hiring side in detail.
If you would like a fixed quote for your product, our custom software and SaaS development team starts with a short discovery and sends a written scope, team, timeline and price. You can also read how we work before getting in touch.
Sources and further reading
Frequently asked questions
How much does a SaaS MVP cost?
It depends on the team and scope, so the honest answer is a formula: team size × weeks × blended rate. A focused MVP with one core workflow, sign-up, billing and an admin view is typically a few months of work for a small senior team. Multiply that by the rates you are quoted to get a realistic range, then add running costs.
Why do SaaS quotes vary so much?
Agencies quote different scopes, different team locations and seniority, and different assumptions about what is bought versus built. Ask each one for a written scope, the team and weeks behind the price, and what is excluded. Comparable scopes produce comparable quotes.
What are the ongoing costs of running a SaaS?
Hosting and databases, third-party services such as email and monitoring, payment processing fees, AI model usage if you use it, domain and security tooling, and the people who maintain and improve the product. Plan for maintenance and improvement as a continuing budget, not a one-off.
Can I build a SaaS with no-code tools to save money?
For validating demand, often yes. No-code and low-code tools are excellent for prototypes and internal tools. When you need complex permissions, high performance, deep integrations or full ownership of your code, a custom build becomes the better long-term investment.
How can I reduce the cost of building a SaaS?
Narrow the first release to one workflow that proves value, buy commodity components, design before building so changes are cheap, and choose a team that can cover design, engineering and launch so nothing falls between vendors.
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Published by Navelo Software
An independent software and AI studio building AI systems, web platforms, mobile apps and SaaS for clients worldwide.
