Photo: Taiwania Justo / Wikimedia Commons, CC BY-SA 4.0, cropped

WordPress development side hustle: skills, tools and first clients explained

By FastBuySale Newsroom · 9 Nov 2026 · 10m ago

What WordPress development involves

WordPress development covers a wide range of work. Some developers install and configure sites using existing themes and plugins. Others customise themes, build child themes, create custom blocks or write plugins. Many side hustlers focus on fixing errors, improving speed, migrating sites, setting up online shops or maintaining sites with updates and backups. Choosing the type of work that suits your skills and time helps you offer clear services.

Skills to learn

Start with HTML and CSS, since they control structure and styling. Learn enough PHP to understand themes, templates and hooks, which let you change behaviour without editing core files. Basic JavaScript helps with interactive features and the block editor. Understand hosting, domains, databases, file permissions and email delivery basics.

Tools and setup

Use a local development environment to build and test sites on your computer. Learn version control to track changes and avoid losing work. Use staging sites before updating live sites. A good code editor, browser developer tools and a reliable backup plugin are essential.

Themes, plugins and custom code

Choose well-maintained themes and plugins with good reviews and recent updates. Avoid installing too many plugins, which can slow sites and create security risks. When customising, use child themes or custom plugins instead of editing parent themes, so updates do not erase changes.

Security and maintenance

WordPress sites need regular updates to core, themes and plugins, strong passwords, two-factor authentication, backups and security monitoring. Many clients pay monthly for maintenance, which creates recurring income.

Building a portfolio

Build several sample sites, such as a restaurant site, a portfolio site and a small online shop, and redesign a nonprofit or local business site with permission. Document the problem, your approach and results.

Worked example: side hustle earnings

Rina builds small business sites for 900 dollars each and completes one per month in about 18 hours, earning 50 dollars per hour. She also maintains six sites at 60 dollars per month each, earning 360 dollars monthly for about four hours of work, or 90 dollars per hour. Her monthly total is 1,260 dollars. The percentage calculator on this site helps compare service types.

Finding first clients

Start with people you know: friends with small businesses, local shops, community groups, clubs and nonprofits often need help updating old sites or fixing problems. Offer clearly defined services, such as a site health check, speed improvement, plugin cleanup or a simple five-page site. Freelance platforms can provide early projects, though competition is strong. Agencies sometimes subcontract WordPress tasks to freelancers, which offers steady work without finding every client yourself. Developer communities and local business groups are also useful for referrals.

Pricing your services

Many WordPress freelancers use fixed prices for defined projects, such as a basic site, a theme customisation or a migration, and hourly rates for ongoing fixes. Estimate hours carefully, add time for revisions and communication, and include costs such as premium plugins or themes. Maintenance plans priced monthly provide predictable income. Raise prices as your skills, portfolio and demand grow.

Contracts and scope

Write a short agreement for each project covering what is included, deadlines, number of revisions, payment schedule, who pays for hosting and licences, and what happens if the client requests extra work. Scope creep, where projects grow without extra payment, is a common problem. Ask for a deposit before starting, and transfer site ownership only after final payment.

Communicating with clients

Many clients are not technical. Explain options in plain language, send regular updates and confirm decisions in writing. Provide simple guides or short videos showing clients how to update content themselves. Good communication often matters more to clients than technical brilliance.

Common mistakes

Mistakes include editing live sites without backups, using nulled or pirated themes and plugins, installing too many plugins, ignoring security updates, underpricing projects, skipping contracts and promising unrealistic deadlines. Pirated software often contains malware and violates licences.

Performance and speed

Clients care about fast sites. Learn caching, image compression, lazy loading, choosing lightweight themes and reducing unnecessary plugins. Use free speed testing tools to measure improvements before and after your work, and report results to clients clearly.

Online shop work

Many small businesses want online shops built with WordPress ecommerce plugins. Learn product setup, payment gateways, shipping rules, tax settings and order emails. Shop projects pay more but require careful testing.

Growing steadily

Specialising, for example in speed optimisation, accessibility, membership sites or a particular industry, helps you stand out and charge more. The salary calculator on this site helps compare side income with employed roles. Avoid offers that ask you to pay upfront for access to development work.

Learning the block editor

The modern WordPress editor is built around blocks, and many clients now expect sites that are easy to edit with them. Learn how block themes, templates, patterns and global styles work, and how to create reusable patterns for clients. Developers with JavaScript and React knowledge can build custom blocks, which is a valuable specialism. Even without custom code, understanding the block editor helps you build sites that clients can update confidently, reducing support requests and improving satisfaction.

Hosting knowledge

Clients often ask which hosting to choose. Learn the differences between shared, managed and cloud hosting, and what affects speed, security and support. Understand how to set up domains, DNS records, SSL certificates and email forwarding. Being able to recommend and configure hosting adds value and helps prevent problems after launch.

Site migrations

Moving sites between hosts or domains is a common paid task. Learn to export and import databases, update URLs, move files, test thoroughly and keep backups at every stage. Plan migrations at quiet times and keep the old site running until the new one is confirmed working.

Accessibility basics

Accessible sites work for people using screen readers, keyboards or magnification. Learn heading structure, alternative text, colour contrast, form labels and keyboard navigation. Accessibility improves usability for everyone and is increasingly requested by clients.

Managing your time

Side hustles compete with jobs and family. Set fixed working hours, limit active projects, give realistic deadlines and avoid promising urgent fixes you cannot deliver. Use a simple task list or project board for each client.

Keeping records

Track invoices, payments, expenses such as software licences, and hours worked. Side income is usually taxable, so check official guidance.

Handling emergencies

Hacked sites, broken updates and expired domains often lead to urgent requests. Prepare a clear process: restore from backup, identify the cause, apply fixes and change passwords. Charge emergency rates for out-of-hours work and explain them in advance. Offering emergency support only to maintenance clients can keep your workload manageable while rewarding loyal customers. Keep notes on every incident, since patterns often reveal weak plugins or poor hosting that should be replaced.

Learning from documentation

The official WordPress developer documentation covers themes, plugins, blocks, hooks and coding standards in detail. Reading it regularly helps you write cleaner, safer code and keep up with changes. Developer forums and community events add practical tips and help you meet other developers who may refer work.

Writing clean code

Follow WordPress coding standards, sanitise and validate user input, escape output and use nonces for forms. Clean, secure code reduces bugs and protects client sites from attacks, and it makes future maintenance much easier for you or another developer.

Asking for referrals

Happy clients are your best marketing. After finishing a project, ask whether they know anyone who needs similar help, and request a short testimonial for your portfolio. Many WordPress freelancers find most of their steady work through referrals.

Handing over finished sites

At handover, give clients a short guide covering logins, editing pages, adding posts, updating plugins and who to contact for help. Confirm backups are running and that they own the domain and hosting accounts.

Reader questions

Questions about tech side hustles? Send them through the Ask page on this site.

Disclaimer

This article is for general information only. Rates and tools change; check official sources. No income is guaranteed.

💬 Join the discussion on this article →

📚 WordPress: all 2 stories →

More in News · Trending News · Browse local deals