How Much Does Custom Software Development Cost?

A transparent breakdown of pricing models, scope tiers and what actually drives the budget of a custom build.

Aftab Memon

June 22, 2026

Custom software pricing is opaque on purpose — every agency frames it differently. This guide breaks down the real cost drivers behind a custom software development engagement so you can plan a budget that survives contact with reality.

The three pricing models

Most engagements fall into fixed-bid, time-and-materials, or retainer. Each works for a different stage of clarity — and the right model often depends on whether you’re shipping a focused web application or a multi-surface platform.

Fixed bid

Retainer

Best for well-defined scope

Best for evolving scope

Change orders required

Continuous discovery

Lower flexibility

High flexibility

Predictable invoice

Predictable monthly burn

Pro Tip

Start fixed-bid for the MVP, then move to retainer for iteration. You get a launchable v1 without locking yourself out of learning.

Typical scope tiers

$15–40k

Internal tool MVP

$40–120k

SaaS v1

$120k+

Platform / marketplace

A focused internal tool is very different from a SaaS product build or a customer-facing mobile app. Map the tier to the audience before you map it to the price.

Common Mistake

Budgeting only for build. Hosting, monitoring, support and feature work add 20–35% per year on top of the initial build.

What actually drives the budget

Number of user roles and permissions
Third-party integrations (Stripe, CRMs, ERPs) — see API & automation
Realtime / collaborative features
Compliance (SOC2, HIPAA, GDPR)
Custom design vs. reuse of an existing UI/UX design system

            1
            // Rough estimator
        
            2
            const base = scope === 'mvp' ? 40_000 : 120_000;
        
            3
            const integrations = integrationCount * 6_000;
        
            4
            const compliance = needsSoc2 ? 25_000 : 0;
        
            5
            const total = base + integrations + compliance;

Frequently asked questions

Do you do fixed-bid projects?

Yes — once scope is locked in a discovery sprint. We rarely fixed-bid blind.

What does a discovery sprint cost?

Typically $5–10k for a two-week engagement that produces a scoped, estimated build plan.

Can you work with our in-house team?

Absolutely. Many engagements pair our seniors with your team under a co-dev model.

Written by

Aftab Memon

Aftab Memon is a Senior WordPress Developer at ConicPlex, working across everything from plugin conflicts and theme customization to full site builds on Elementor and WooCommerce. He spends most of his time in the parts of WordPress that don’t show up in a features list: hosting quirks, hook priority, the difference between a plugin that works in isolation and one that survives a real production stack. He writes here about what actually holds up once a WordPress site is live and being run by a non-technical client, not just what works in a demo.