In the Marine Corps, we had a saying about equipment: free gear is never free. Somebody is always paying for it, whether that is the taxpayer, the supply chain, or the Marine who has to maintain it in the field. WordPress operates on the same principle. The software costs nothing to download. Everything after that costs you money, time, or both.
WordPress powers roughly 43% of all websites and holds over 60% of the content management system market [1]. That dominance is earned. For bloggers and hobby sites, it remains a reasonable starting point. But for businesses generating revenue through their websites, the total cost of ownership tells a story the download page does not.
The Plugin Dependency Problem
WordPress core is lean by design. It handles content publishing and not much else. Everything beyond that, contact forms, SEO tools, security monitoring, performance optimization, e-commerce, analytics, backup systems, requires plugins. The official directory lists over 65,000 of them, and 80% of WordPress websites use at least one [2].
The average business site does not use one. It uses a stack. A typical commercial WordPress installation runs a form plugin, an SEO plugin, a caching plugin, a security plugin, a backup plugin, an analytics plugin, and whatever else the business needs to function. Premium versions of these plugins cost anywhere from $5 to $100 per month each [3]. Those subscription fees accumulate quietly.
But the financial cost is only part of the problem. Every plugin is a separate piece of software maintained by a separate developer or team, operating on a separate update cycle, with a separate potential for introducing vulnerabilities. In 2024, researchers documented 7,966 new security vulnerabilities in the WordPress ecosystem, a 34% increase over the prior year. Of those, 96% originated in plugins [4]. That is not a bug in the system. That is the system.
The Maintenance Treadmill
WordPress maintenance is not optional. Core updates, plugin updates, theme updates, PHP version compatibility checks, database optimization, backup verification, security scanning, and performance monitoring all require regular attention. Professional WordPress maintenance services run $30 to $500 per month, with annual costs ranging from $1,000 to $5,000 depending on site complexity [5].
Skip that maintenance and the math gets worse. Approximately 35% of all WordPress vulnerabilities disclosed in 2024 remained unpatched in 2025, meaning the plugin developer never released a fix [6]. For those plugins, deletion is the only safe option. But if your site depends on that plugin's functionality, deletion means rebuilding that feature from scratch or finding an alternative, which introduces its own compatibility risks.
The maintenance treadmill also creates a speed problem. Each plugin loads its own scripts, stylesheets, and database queries. As plugins accumulate, page load times increase. As of July 2025, only 44% of WordPress sites on mobile devices pass all three of Google's Core Web Vitals tests [7]. That means more than half of all WordPress sites are delivering a measurably poor user experience on the devices most people actually use.
What the Cleanup Costs
When WordPress maintenance fails, and statistically it does for a significant number of sites, the recovery costs are steep. Basic malware removal starts at $3,000. Serious breaches cost small businesses between $25,000 and $75,000, excluding long-term brand damage [8]. The average data breach across all business sizes reached $4.88 million in 2024 [9].
Sixty percent of small businesses that suffer a cyberattack go out of business within six months [8]. That is not a technology problem. That is a survival problem disguised as a technology choice.
Proactive annual security maintenance costs roughly $750. The gap between $750 in prevention and $3,000 to $75,000 in recovery is the WordPress Tax in its purest form.
What the Alternative Looks Like
A custom-built website on a modern framework like Next.js eliminates the plugin dependency model entirely. Features are built into the codebase, not bolted on through third-party software with independent update cycles and unknown security postures. There is no plugin compatibility matrix to manage, no subscription stack to maintain, no monthly treadmill of updates across dozens of independent software packages.
Custom builds cost more upfront. That is the honest trade. But the total cost of ownership over three to five years, when you factor in hosting, maintenance, security, performance optimization, and the opportunity cost of downtime, often comes in lower than a WordPress site that has been properly maintained. The sites that have not been properly maintained cost far more.
The real question is not whether WordPress is free. It is whether your business can afford what "free" actually costs.
References
[1] W3Techs, "Usage Statistics and Market Share of WordPress," February 2026. Available: https://w3techs.com/technologies/details/cm-wordpress
[2] MageComp, "150+ Amazing WordPress Statistics You Must Know in 2025," February 2025. Available: https://magecomp.com/blog/wordpress-statistics/
[3] Splendid Web, "The Hidden Costs of WordPress: What Small Businesses Need to Know," 2025. Available: https://splendidweb.co.uk/blog/the-hidden-costs-of-wordpress
[4] Patchstack, "State of WordPress Security in 2025," September 2025. Available: https://patchstack.com/whitepaper/state-of-wordpress-security-in-2025/
[5] WebyKing, "WordPress Maintenance Cost in 2026: Plans, Pricing, and What's Included," February 2026. Available: https://www.webyking.com/blog/wordpress-maintenance-cost-plans-pricing/
[6] Security Boulevard, "WordPress Vulnerability Scanner Reveals How Exposed Your Website Really Is," December 2025. Available: https://securityboulevard.com/2025/12/wordpress-vulnerability-scanner-reveals-how-exposed-your-website-really-is/
[7] MonsterInsights, "What Are Core Web Vitals & How to Improve Them for Better Rankings," December 2025. Available: https://www.monsterinsights.com/what-are-core-web-vitals/
[8] Webwize, "Why WordPress Security Updates Actually Matter in 2026," January 2026. Available: https://www.webwize.com/update-wordpress-plugins-themes/
[9] WP Security Ninja, "WordPress Vulnerabilities Database 2026: Complete Security Intelligence Guide," January 2026. Available: https://wpsecurityninja.com/wordpress-vulnerabilities-database/