The Real Numbers: What Executive Side Projects Cost in 2026
The honest answer to "how much does a side project cost?" is: it depends on what you are building, but it is less than you think. In 2026, a well-scoped SaaS MVP can be built for $25-50K through a focused development sprint. A marketplace platform costs $40-75K. A data-driven tool or API product costs $20-40K. These are not theoretical numbers—they reflect actual budgets from executive side projects launched through studios like Sizzle Ventures.
For context, these budgets buy you a production-ready application with user authentication, a core feature set, payment integration, a responsive frontend, an admin dashboard, and deployment to cloud infrastructure. They do not buy you a feature-complete platform—they buy you a product that is good enough to charge money for and learn from.
The most common budget mistake executives make is not underinvesting—it is overinvesting before validation. A CEO who spends $150K on a full-featured platform before confirming that anyone will pay for it has made a far worse financial decision than a CEO who spends $30K on an MVP, validates demand, and then invests the remaining $120K in features that customers have actually requested.
Budget Breakdown: Where Every Dollar Goes
A typical $40K MVP budget breaks down roughly as follows. Discovery and scoping consumes 5-8% of the budget ($2-3K)—this covers the initial workshops where your development partner translates your vision into a technical specification, user stories, and a prioritized feature list. This phase is short but essential, and skipping it inevitably leads to rework that costs far more.
Design consumes 15-20% ($6-8K)—this covers UX wireframes, UI design, and a component library that ensures visual consistency. For executive side projects, design is particularly important because your target customers are sophisticated buyers who judge product quality by its visual polish. A well-designed MVP signals professionalism and credibility.
Development consumes 60-70% ($24-28K)—this is the engineering work: frontend, backend, database, integrations, testing, and deployment. The majority of your budget should go here, and the majority of your development partner's team should be dedicated to this phase. The remaining 5-10% covers project management, quality assurance, and launch support.
Hidden Costs That Inflate Executive Side Projects
The development budget is not the only cost. Domain registration, cloud hosting, SSL certificates, and third-party service subscriptions add $100-300 per month in ongoing costs. Email services, analytics tools, and monitoring platforms add another $50-200 per month. Budget $500 per month for infrastructure and tooling in year one.
Legal costs are often overlooked. If your side project operates in a regulated industry, you may need legal review of your terms of service, privacy policy, and data handling practices. Budget $2-5K for initial legal setup. If your side project could create a conflict of interest with your current role, engage an employment attorney ($1-3K) to review your employment agreement and structure the side project appropriately.
Marketing and customer acquisition costs are the most variable hidden expense. If your network provides your first 20-30 customers, acquisition cost is effectively zero. If you need to invest in paid advertising, content marketing, or sales outreach, budget $2-5K per month for the first six months. Tools like UserFinder can help you identify and reach potential customers more efficiently, reducing your per-lead acquisition cost.
The Budget Decision Framework
Match your budget to your confidence level. If you have strong validation data—landing page conversions, pre-sales commitments, or concierge MVP revenue—invest in a full MVP build ($35-60K). If you have moderate validation—positive interview feedback but no purchase commitments—invest in a prototype sprint ($15-25K) to gather stronger signals.
If you have minimal validation—just a hunch and domain expertise—invest in code-free validation first ($1-3K). Run landing page tests, conduct interviews, and build a smoke test. Only escalate your investment when the data warrants it. This staged approach is not timid—it is disciplined capital allocation, and it is exactly how you evaluate investments in your day job.
The best investment you can make is in the right development partner. An experienced studio that specializes in executive side projects—like Sizzle—will save you money by preventing scope creep, avoiding technical over-engineering, and delivering on a fixed timeline. The cheapest developer is almost never the most cost-effective. Optimize for value delivered per dollar spent, not for the lowest hourly rate. Contact Sizzle for a transparent budget estimate tailored to your specific project.
Ready to Build Your Side Project?
Executives across every industry are turning side project ideas into real products—without pulling a single engineer off their core team. The key is working with a partner who understands both the technical execution and the strategic context of building alongside a day job.
Sizzle Ventures helps executives go from idea to launched product in as little as 90 days. Our MVP Sprint is built specifically for leaders who need speed without sacrificing quality—and without touching their internal dev team.
Ready to explore what's possible? Start a conversation with Sizzle about bringing your side project to life.