What Does It Cost to Build an MVP in 2026?

Ask five suppliers to quote the same MVP and you will get five numbers spanning more than an order of magnitude. That is not because four of them are lying. It is because "MVP" describes an intention, not a scope, and each supplier is quoting a different interpretation of what you said.

So rather than another vague range, here is what actually moves the number.

The real cost drivers

Authentication and permissions

"Users can log in" is cheap. "Organisations have members, members have roles, roles determine what they can see, and admins can invite people" is a different product. Role-based permissions are one of the most consistently underestimated pieces of scope in the industry — they touch every screen and every query, and they cannot be retrofitted cheaply.

Payments

Taking a single payment is a day's work. Subscriptions are not: plan changes, proration, failed payments, dunning, cancellations, refunds and reconciliation are each individually simple and collectively substantial. Budget properly for it or defer billing entirely and invoice your first customers by hand — which, for genuine early validation, is often the correct answer.

Integrations

Every third-party system you connect to is an unknown until someone has read its documentation. Well-documented modern APIs are quick. Legacy enterprise systems, anything requiring certification, and anything without a sandbox environment can consume weeks. This is the single most common source of overrun.

Whether it has to look designed

A clean, competent interface built on an existing component library is inexpensive. A distinctive designed product with custom interaction is a separate discipline with a separate cost. Both are legitimate; conflating them in a brief is how quotes end up incomparable.

What the options actually cost

AI builders — £0 to a few hundred

Lovable, Bolt, v0 and similar. Genuinely excellent for proving that someone wants the thing. The limits are real and consistent: database design, security model and maintainability. Use them to validate, not to run a business on. If you have already built this way and outgrown it, that is a specific and solvable problem — see AI app migration.

Freelancers — £8,000 to £30,000

Can be outstanding value with a strong individual. The risks are concentration and continuity: one person's availability, one person's judgement, and no cover when they take a contract elsewhere mid-build.

Offshore agencies — £10,000 to £40,000

The headline rate is genuinely lower. The costs that do not appear in the quote are specification overhead and review burden — you are effectively taking on the product management yourself. Works well with a technically competent founder, poorly without one.

UK and US agencies — £25,000 to £150,000

Wide range because it covers both small specialists and large firms. At the top of the range you are paying for account management, process and insurance as much as engineering. For an MVP, that overhead is frequently not what you need.

Fixed-price specialists — £8,000 to £30,000

Suppliers who constrain scope deliberately in order to quote a fixed number. The trade-off is explicit: you accept a tighter scope in exchange for a price and date that do not move. For a first version this is usually the right trade, because the scope you cut is nearly always scope you did not need to test the idea.

How to read a quote that looks too cheap

A significantly lower number is not automatically a bad sign — but it always means something. Usually one of:

• A different scope was assumed. The most common explanation by far. Ask what they excluded.
• The change-request model. The build is quoted low and the margin comes from everything discovered afterwards.
• Quality is the variable. No tests, no migrations, no documentation. Real work, deferred to you at a worse time.
• They genuinely are cheaper. Lower overhead, no sales team, no office. This does exist.

The question that separates these: "what is explicitly not included in this price?" A supplier who has thought properly about scope will answer immediately and specifically. A supplier who has not will answer vaguely — and that vagueness is the thing you are actually buying.

The cheapest MVP is the one you do not build

Before any of this: the least expensive way to test an idea is usually not software. A landing page with a real payment button, a manually operated service behind a form, a spreadsheet and some phone calls — these answer the only question that matters at this stage, which is whether anyone will pay, and they answer it in days rather than months.

Build the MVP once you know the answer is yes. It will be a better MVP, because by then you will know what it needs to do.