How much does it cost to build a SaaS MVP?

A SaaS MVP typically costs £15,000–£60,000 depending on complexity. A simple MVP with 3 core features, authentication, and Stripe billing can be built for £15k–£30k. A more complex MVP with integrations, advanced UI, and custom workflows costs £30k–£60k.

What are the ongoing monthly costs for running a SaaS product?

Monthly infrastructure costs for a small SaaS start at £200–£500/month for cloud hosting, database, email, and monitoring. As you grow to thousands of users, expect £1,000–£5,000/month. Stripe charges 1.4–2.9% + 30p per transaction on top of this.

Is it cheaper to use a SaaS boilerplate than build from scratch?

A SaaS boilerplate (Shipfast, SaaS Pegasus, etc.) costs £200–£500 but can save 4–6 weeks of development time (£8k–£20k worth of work). For most standard B2B SaaS products, using a boilerplate is cost-effective if the product's differentiation is in features, not infrastructure.

How Much Does It Cost to Build a SaaS Product in 2026?

Real cost breakdowns for SaaS development in 2026 — MVP budgets, full product builds, infrastructure costs, billing fees, and what actually drives the price up or down.

By SpiderHunts Technologies · 23 May 2026 · 10 min read

TL;DR — Quick Answer

SaaS MVP (8–12 weeks): £15,000–£60,000
Full SaaS product (4–9 months): £60,000–£250,000+
Monthly infrastructure (small-scale): £200–£500/month
Stripe transaction fees: 1.4–2.9% + 30p per payment
The biggest cost variable is number of integrations and complexity of billing logic

SaaS Cost By Build Type

Build Type	Timeline	Cost Range	What's Included
Proof of Concept	2–4 weeks	£5k–£15k	Core feature demo, no billing/auth
Simple SaaS MVP	8–12 weeks	£15k–£30k	3 features, auth, Stripe, basic UI
Complex SaaS MVP	12–20 weeks	£30k–£60k	Multiple integrations, complex workflows, roles
Full SaaS Product V1	4–7 months	£60k–£150k	Full feature set, analytics, admin panel
Enterprise SaaS Platform	6–12 months	£150k–£350k+	SSO, compliance, white-labelling, enterprise API

What Drives SaaS Development Costs Up?

Third-Party Integrations

Each integration (CRM, ERP, payment gateway, email platform, webhook system) adds 2–4 weeks of work. Five integrations can add £20k–£40k to the budget. Plan which integrations are truly necessary for MVP vs nice-to-have for V2.

Complex Billing Logic

Usage-based billing, tiered pricing, seat-based models, add-ons, free trials with credit card, and annual/monthly switching all require custom implementation. Complex billing can add £8k–£25k vs a simple fixed-monthly subscription.

Advanced Permission Systems

A simple admin/member role system takes 1 week. A granular RBAC system with custom roles, resource-level permissions, and team hierarchies can take 3–6 weeks — adding £6k–£15k.

Compliance Requirements

GDPR compliance adds data retention, export, and deletion features. HIPAA adds encryption, audit logging, and BAA agreements. SOC 2 adds extensive logging and controls. Budget an additional £10k–£40k depending on the standard.

AI/ML Features

Embedding AI features (GPT integration, RAG, recommendations, predictions) adds £8k–£30k+ depending on complexity. AI SaaS products — where AI is the core feature — often cost 30–50% more than equivalent non-AI products.

Development Cost by Component

Component	Time	Cost (Agency)
Auth (sign up, login, MFA, SSO)	1–2 weeks	£2k–£6k
Stripe billing + webhooks + portal	1–3 weeks	£3k–£10k
Multi-tenancy + RBAC	1–3 weeks	£3k–£10k
Core features (per feature)	2–4 weeks each	£5k–£15k each
Dashboard + data visualisation	2–4 weeks	£5k–£15k
Admin panel (super-admin)	1–2 weeks	£3k–£7k
Email notifications + onboarding	1–2 weeks	£2k–£6k
CI/CD, testing, deployment	1–2 weeks	£2k–£5k

Ongoing Monthly Infrastructure Costs

Service	Early Stage (0–1k users)	Growth (1k–20k users)
Cloud Hosting (AWS/GCP)	£50–£150/mo	£300–£1,500/mo
Database (RDS/Supabase)	£30–£80/mo	£150–£600/mo
Auth (Auth0/Clerk)	Free–£20/mo	£50–£300/mo
Email (Resend/SendGrid)	£10–£30/mo	£30–£150/mo
Monitoring (Sentry/Datadog)	£20–£50/mo	£100–£400/mo
CDN (Cloudflare)	Free–£20/mo	£20–£100/mo
Total Infrastructure	~£200–£500/mo	~£700–£3,000/mo

UK Agency vs Freelancer vs Offshore: Cost Comparison

Option	Hourly Rate	SaaS MVP Cost	Risk
UK Agency	£100–£200/hr	£40k–£80k	Low
UK Freelancer	£60–£120/hr	£25k–£50k	Medium (availability)
Eastern Europe Agency	£40–£80/hr	£18k–£40k	Medium (communication)
UK-Managed Pakistan Team	£35–£65/hr	£15k–£35k	Low (best value)

UK-managed offshore teams (like SpiderHunts — UK-registered, Pakistan-based engineers) offer the best cost-to-quality ratio for SaaS development. You get Western-standard project management and accountability with the cost efficiency of a skilled offshore team.

How to Reduce SaaS Build Cost Without Sacrificing Quality

Use a SaaS boilerplate — saves 4–6 weeks of auth and billing infrastructure work

Scope the MVP ruthlessly — 3 features maximum; everything else is post-launch

Use managed services — Supabase, Railway, Vercel eliminate DevOps overhead early on

Buy before you build — use off-the-shelf tools for email, analytics, support; build only what's core

Fixed-price engagements — get a fixed scope and price to avoid budget overruns from T&M billing

Get an Accurate Quote for Your SaaS Product

Tell us what you are building and we will give you a fixed-price estimate within 48 hours — broken down by component so you know exactly what you are paying for.

Request a Free Estimate