Founders often ask why a SaaS product costs two to three times what a custom build with the same screens would cost. The answer is that the screens are not the product. The product is everything that lets a thousand different customers use the same system safely, pay for it automatically, and be supported without a developer.
What makes SaaS more expensive than a one off build
Multi tenancy
Every piece of data belongs to a customer, and customer A must never see customer B’s records under any circumstance. That has to be enforced at the database level, tested deliberately, and preserved every time a new feature is added. It is the single largest architectural difference and it touches everything.
Self service onboarding
In a custom build you set up the client yourself. In SaaS a stranger signs up at 2am and must reach a working state without you. That means signup, email verification, workspace creation, sensible defaults, an empty state that teaches, and an invite flow for their team.
Subscription billing
Not just taking a payment. Plans, trials, upgrades, downgrades with proration, failed payment retries, dunning emails, cancellations, refunds, and invoices that a customer’s accountant accepts. This is routinely underestimated by an order of magnitude.
Roles and permissions
Owner, admin, member, viewer, at minimum. Every screen and every API endpoint has to respect them. Retrofitting permissions into a system that did not plan for them is one of the most expensive rewrites in software.
An admin panel you can support from
Your team needs to look at a customer’s account, extend a trial, fix a bad record and understand a complaint without opening the database. Without this, every support ticket costs a developer.
Realistic cost and timeline by stage
Validation build: 600,000 to 1,500,000 PKR, 2 to 3 months
One core workflow, single user accounts, manual billing (you send an invoice yourself), no self service signup. The goal is to find out whether anyone wants it. Most founders should start here and most do not.
Launchable SaaS: 2,000,000 to 5,000,000 PKR, 4 to 7 months
Multi tenant, self service signup, subscription billing, two or three roles, an admin panel, and email notifications. This is a real product a stranger can buy at midnight.
Scaling SaaS: 5,000,000 to 15,000,000 PKR, 8 to 14 months
Integrations with other tools, an API for customers, audit logs, single sign on, usage analytics, and the infrastructure work that keeps it fast as data grows. Enterprise buyers ask for these before they sign.
Where the budget actually goes
For a launchable SaaS, the rough split:
- Discovery and product definition: 8 to 12 percent. Deciding what is out of scope is the highest value work in the project.
- Design: 10 to 15 percent.
- Core application: 30 to 35 percent. The part founders think is all of it.
- Multi tenancy, auth and permissions: 12 to 18 percent.
- Billing and subscriptions: 8 to 12 percent.
- Admin panel: 8 to 10 percent.
- QA, security and launch: 10 to 15 percent.
The running costs nobody budgets
- Infrastructure: 40,000 to 400,000 PKR per month depending on customers and data. Small at first, and it grows with success rather than with time.
- Third party services: email delivery, error monitoring, analytics, file storage, payment fees. Individually small, collectively 30,000 to 150,000 per month.
- Maintenance and support: 15 to 20 percent of build cost per year, minimum. A SaaS product is never finished; it either improves or it churns.
- Customer support time. Not a software cost, and it is the one that surprises founders most.
Six ways to reduce the number honestly
- Bill manually until you have twenty customers. Send invoices yourself. Subscription billing is expensive to build and pointless before you know people will pay.
- One user role in version one. Add the permission model when a customer asks for it, and price that release accordingly.
- Buy authentication. Use an existing identity provider rather than building signup, password reset, sessions and two factor from scratch.
- Make the admin panel a list and a button. You need to see and change records, not a dashboard with charts.
- Launch on web only. Mobile apps can wait until customers ask by name.
- Say no to the enterprise feature until an enterprise customer has signed a contract that pays for it.
The question to ask a development partner
“If we cut this to a three month build, what would you remove, and what would we still learn?” A team that answers with a specific list is thinking about your outcome. A team that says everything is essential has not thought about it, and their estimate will not hold.
Before commissioning anything, it is worth settling the build versus buy question first: see custom software versus off the shelf and how long an MVP actually takes.
Frequently asked questions
How much does it cost to build a SaaS product?
Roughly 2,000,000 to 5,000,000 PKR for a launchable multi tenant product with self service signup and billing. A validation build to test demand is 600,000 to 1,500,000.
How long does SaaS development take?
Two to three months for a validation build, four to seven for a launchable product, eight to fourteen for a scaling product with integrations and enterprise features.
Should I build the mobile app at the same time?
Almost never. Web first, and add mobile when customers request it specifically. Building both at once roughly doubles the timeline for a product you have not validated.
What is the most underestimated part of a SaaS build?
Subscription billing, followed by the admin panel. Both are invisible to the customer and both cost more than founders expect.
Ezitech builds SaaS products end to end, from validation build through to scaling infrastructure. See our SaaS development work or get a scoped estimate.
Related: What software actually costs in Pakistan — every Ezitech cost guide in one place.