You have a SaaS idea, a budget in mind and three quotes that disagree by a factor of four. Before you compare vendors, write one sentence describing the paid workflow your first customers need, because every number below scales with how clearly that sentence is defined.
This guide gives you a cost formula, a way to read a quote, the costs that rarely appear on one, and a short checklist to run before you sign. It avoids vendor rate cards on purpose. Hourly rates change every quarter and the published ones come mostly from agencies selling to you, so I use public labour-cost data for scale and let you plug in the real quotes you collect.
How much does it cost to outsource software development?
Outsourcing cost is the quoted price plus your own coordination time and a rework reserve, so the same SaaS MVP can land anywhere in a wide band depending on vendor and scope clarity.
Start with the formula, then replace my assumptions with your quotes:
- Engineering cost = rate per hour × productive hours per week × weeks.
- Add your own time: every contractor hour creates review, decisions and unblocking on your side. Price it at what your time is worth elsewhere.
- Add a rework reserve for work that misses the spec. I use 15% as a planning assumption, not a measured industry figure.
- Add the running costs that start before you have revenue (hosting, database, email, monitoring, payments).
Consider a hypothetical founder quoted €80 per hour (an assumed rate, not a market benchmark). The contractor delivers 30 productive hours a week over 26 weeks. That is €80 × 30 × 26 = €62,400. With a 15% reserve the planning number is €71,760, before your own time and before running costs. Change any of the three inputs and the total moves in proportion, which is why a vague scope is the most expensive line item on any quote.
For scale, public labour-cost data shows how wide the spread between countries is. Eurostat estimated 2025 average hourly labour costs at €34.9 in the EU, from €12.0 in Bulgaria to €56.8 in Luxembourg. These cover all employees, not software developers, so read them as a sense of the gap rather than as a developer rate. On the high end, the US Bureau of Labor Statistics reports a median annual wage of $135,980 for software developers in May 2025, which is salary only, before an employer or agency adds overhead and margin.
| Benchmark (2025) | Value | What it tells you |
|---|---|---|
| EU average hourly labour cost (Eurostat) | €34.9 | All employees, not developers |
| Lowest: Bulgaria (Eurostat) | €12.0 | Geography moves cost a lot |
| Highest: Luxembourg (Eurostat) | €56.8 | Geography moves cost a lot |
| US software developer median pay, May 2025 (BLS) | $135,980 per year | Salary only, no overhead or margin |
For a full-scope view of what an MVP contains, see the line-by-line MVP cost breakdown and the broader software development cost and pricing guide.
How do you read a quote line by line?
Ask the vendor to split the quote into the same five blocks so you can compare like with like: discovery and specification, design, engineering, testing and deployment, and handover. Then check three things. Is engineering shown as hours or as a fixed deliverable? Does the quote name what is excluded, such as third-party subscriptions, app-store fees or post-launch support? And does it state how many revision rounds design includes? A quote that is short and confident usually hides one of these. A quote with a clear exclusions list is easier to trust, even when the total is higher, because you know where the surprises would have been.
Also ask how long the quote stays valid and whether the rate changes if the start date slips. Keep the comparison honest by giving every vendor the same written brief. If one vendor received a two-page brief and another received a call, the gap between their numbers measures the briefs, not the vendors. The MVP cost estimator gives you a neutral starting range to hold a quote up against.
Which outsourcing model should you compare quotes across?
Compare quotes by engagement model first, because hourly, fixed-scope and retainer contracts put the scope risk on different people, and that matters more than a small difference in headline rate.
| Model | You pay for | Who carries scope risk | Fits when |
|---|---|---|---|
| Hourly (time and materials) | Hours worked | You | The spec will change weekly |
| Fixed scope | A defined deliverable | Mostly the vendor, until a change order | The spec is written and stable |
| Monthly retainer | Reserved capacity | Shared | You have an ongoing backlog after launch |
| Dedicated team | A named team full-time | You | You are scaling past an MVP |
This table is my own framing of common contract structures, not a survey result. Two checks apply to every row. First, ask what a change order costs and how it is approved, because that clause decides whether a fixed price stays fixed. Second, ask who you will talk to day to day. For the agency side of that question, how to vet a SaaS development agency lists the evidence to request, and in-house vs outsource SaaS development covers when outsourcing is the right call at all.
On my side, I work as an AI-augmented full-stack engineer and quote SaaS MVPs as fixed-scope projects rather than by the hour. Per my published pricing, an MVP takes roughly 6 to 12 weeks and the price is a written quote after we define the scope. I do not publish a number here because a number without your scope would mislead you.
What costs do quotes leave out?
Quotes usually omit the recurring service bills, security and legal work, your own review time and the maintenance that starts on launch day, so budget for them separately instead of hoping the contractor absorbs them.
Third-party services. The contractor sets these up and you pay the invoices. Two published examples show the shape. Supabase lists a free plan and a Pro plan from $25 per month (8 GB disk included, 100,000 auth users included), and Stripe charges 2.9% + 30¢ per successful domestic card transaction on standard pricing. Both are checked against the vendors' pages as of September 2026 and both change, so confirm before you budget. Add hosting, email delivery and error monitoring to the list.
Security and compliance. If your first customers are businesses, expect a security questionnaire before the first large deal. I am not quoting audit prices here because the published ones come from audit vendors and vary by scope. Ask the vendor which parts of your stack they have handled before.
Legal. A privacy policy, terms of service and a signed IP assignment from every contractor. Ownership rules differ between countries, so have a lawyer review the assignment rather than trusting a template.
Maintenance. Dependency updates, bug reports and infrastructure tuning begin on day one of production. Agree in advance whether that is covered by a retainer or billed separately.
Your time. A contractor needs decisions. If you cannot give a few hours every week, the schedule slips and the invoice grows. This is the cost founders underestimate most.
For a stage-by-stage view of how these costs stack, the MVP development cost guide walks through the same categories.
How do you protect the budget before you sign?
Protect the budget with a written spec, a paid trial sprint, milestone payments tied to acceptance criteria and a signed IP assignment, because each one removes a specific way costs grow after signing.
- Write the spec first. A product hypothesis, a feature list with user stories, the main data entities, wireframes for the core screens and acceptance criteria for each feature. Two days spent here costs far less than changing direction after the build starts. CB Insights analysed 431 venture-backed shutdowns since 2023 and found poor product-market fit cited in 43% of them, so pay for clarity about the problem before you pay for code.
- Run a paid trial sprint. One or two weeks on a defined slice, at the full rate. Both sides learn whether communication and code quality hold up.
- Pay by milestone. Tie each payment to delivered, accepted work. Avoid paying everything upfront and avoid paying nothing upfront. The split is a negotiation, not a standard.
- Sign the IP assignment before any code is written. A vendor who resists this is telling you something.
- Keep a technical reviewer on your side. If you are not technical, a few hours of independent code review at each milestone costs little compared with the rework it can catch.
A fixed price only protects you if the acceptance criteria are attached to the contract. Ask that each deliverable names how it will be tested, who signs it off and how many days you have to report defects after delivery. Also ask what happens if the vendor's lead developer leaves mid-project, and what documentation and infrastructure access you receive at handover. These answers cost nothing to request, and a vendor who answers them clearly is usually easier to work with than one who promises speed and skips the detail.
If you want a second opinion on a quote or a spec, send me the document and the question you are unsure about at info@duskolicanin.com, and I will tell you which line items I would challenge first.