---
title: How should founders think about SaaS development costs?
url: https://varstatt.com/jurij/p/how-should-founders-think-about-saas-development-costs
author: Jurij Tokarski
date: 2026-03-07
description: SaaS development isn't a one-time build. It's a weekly investment. The real question is how much per week you're willing to invest.
section: Blog (https://varstatt.com/jurij/archive)
tags: principles-faq (https://varstatt.com/jurij/c/principles-faq)
---

SaaS development isn't a one-time build. It's a weekly investment. Most founders think "[build the MVP](/jurij/p/what-a-6-week-mvp-build-looks-like), then launch, then we're done." But successful SaaS products never stop evolving. The real question isn't "how much to build my SaaS?" It's "how much per week am I willing to invest in continuous development?"

Agencies sell you a "finished product." But SaaS products aren't finished — they evolve. Founders who understand this from day one make better decisions. They budget for ongoing development, not a big launch event. Launching is the beginning, not the end.

[No Split](/principles/diligence/no-split) makes this explicit: development and maintenance aren't separate phases. Features ship, users hit edge cases, the developer fixes them, the client asks for improvements, performance degrades, the developer optimizes. All of this is the same work.

[Pause, Not End](/principles/diligence/pause-not-end) acknowledges that work surges, then slows. Weekly billing makes pausing natural — context survives the gap, billing matches activity. The relationship continues; work resumes when needed.

[Weekly Accountability](/principles/partnership/weekly-accountability) and [Pricing Conversation](/principles/partnership/pricing-conversation) make the cost explicit and predictable. No renegotiation, no scope creep arguments.

If you want to size the weekly cost against your specific feature set before committing, [Build Cost](/discovery/build-cost) shapes scope to budget and surfaces the post-launch operational line — the one founders forget when they price the build.

Before starting SaaS development, ask: "Can I afford weekly development costs after launch?" If not, your business model might not be viable yet. SaaS is a subscription business. Your development should be too.