IT certifications are worth it when a hiring filter, a contract or a regulation asks for them, and when you are early enough in your career that a structured syllabus teaches you something real. They are worth much less once you have years of shipped work to point to, because at that point hiring teams care about what you built and fixed, not which exams you passed.
That is the short version. The rest of this guide covers where certifications clearly pay off, where they mostly don't, and how to pick one without wasting money.
Where certifications clearly help
Breaking into IT with no track record
When you have no experience, a certification is one of the few signals a recruiter can check in seconds. The Bureau of Labor Statistics profile of computer support specialists says candidates may qualify with a high school diploma plus relevant IT certifications, which makes support one of the clearest cases where a certificate can stand in for a degree at the screening stage.
Certifications also give self-taught people a curriculum. A good entry-level exam forces you through networking, operating systems, security basics and troubleshooting, the topics people skip when they learn only what interests them. See our IT support specialist page for what the job involves.
Defense and government cyber roles (DoD 8140)
This is the one area where certifications can be a formal job requirement rather than a preference. On February 15, 2023, the DoD Chief Information Officer issued DoD Manual 8140.03, which replaced the older DoD 8570 manual, according to the DoD announcement on DVIDS. The release describes the new framework as a role-based approach covering roughly 225,000 members of the DoD cyber workforce, including civilians, military personnel and contractors, across IT, cybersecurity, cyber effects, cyber intelligence and cyber enablers.
The practical change from 8570 is flexibility. CompTIA, one of the certification bodies involved, summarizes 8140.03 as focusing on demonstrated capability rather than a compliance checklist, and says it lets workers choose between certification and training options. CompTIA's 8140 page lists seven of its certifications as approved under the manual, including A+, Network+ and Security+.
What this means for you: if you are targeting a defense contractor or a DoD civilian post, read the specific job posting and ask the hiring manager which DoD Cyber Workforce Framework work role and proficiency level the position maps to. Qualification requirements are set by work role, and an approved certification is often the fastest way to meet them, but it is not the only route under 8140. Don't buy an exam based on an old 8570 chart.
Managed service providers and consulting
Consultancies and managed service providers often sell their staff's credentials. Vendor partner programs can require a certain number of certified employees, and clients in regulated industries sometimes ask for named certifications in contracts. At these firms a certification can directly affect what you are billed out at and which projects you are staffed on. The BLS profile of systems administrators makes a related point: employers may require administrators to be certified in the products they use.
Cloud platforms
Cloud certifications are the most useful vendor credentials for many working engineers, for a simple reason: the platforms are large, change constantly, and most people only touch the services their current employer uses. Studying for an associate-level architecture or operations exam pushes you through identity, networking, storage and cost management on that platform, which fills real gaps. Employers using that platform also tend to recognize the credential.
Where they matter much less
Senior software and infrastructure engineering. For experienced software developers and senior platform engineers, interviews focus on system design, debugging and past work. A certification rarely moves an offer at this level. Time spent on a meaningful project, an open source contribution or a write-up of a hard production problem usually does more.
Roles where portfolios carry the weight. Web development, data work and design hiring typically lean on what you can show. A certificate won't compensate for a thin portfolio.
Stacking credentials without experience. A résumé with many entry-level certifications and no hands-on work can read as a candidate who studies but hasn't done the job. After your first one or two, practical experience is the better investment.
Experience-gated certifications taken too early. Some advanced credentials require real experience. The ISC2 CISSP requirements call for at least five years of cumulative, full-time work in two or more of the eight exam domains. A relevant degree or an approved credential can count for one of those years. If you pass without the experience you become an Associate of ISC2 and have six years to earn it. That route exists, but for most people the experience is the harder and more valuable part.
How to choose one
Work backward from the job, not forward from a list of popular exams.
- Collect real postings. Pull fifteen to twenty listings for the role you want, in the sector you want. Count which certifications appear and whether they are required or "nice to have."
- Check whether it is a filter or a bonus. A certification listed as required (common in government, defense and MSP work) is worth a lot more than one mentioned in passing.
- Prefer vendor-neutral early, vendor-specific later. Vendor-neutral fundamentals travel between employers. Platform-specific credentials pay off once you know which platform you will actually work on.
- Look at the syllabus, not just the name. Read the official exam objectives. If most of it is new to you, the study time will teach you something. If you already do all of it at work, the credential is mostly paperwork.
- Ask your employer to pay. Many employers cover exam fees and training, particularly at MSPs and contractors where the credential benefits them directly. Ask before paying yourself.
One more test: ask two or three people already doing the job which credential, if any, they would get again. Practitioners are blunt about which exams taught them something and which were box-ticking, and their answers are often more current than any ranking.
Our certifications hub lists the credentials we track, so you can compare options against the postings you collected.
Cost, time and renewal
The sticker price of an exam is only part of the cost. Check the official page for current pricing, and budget for these as well:
| Cost | What to plan for |
|---|---|
| Exam fee | Set by the certifying body; can vary by region and exam version |
| Study materials and labs | Books, video courses, practice exams, cloud lab usage |
| Retakes | First attempts don't always pass; know the retake policy before you book |
| Study time | Usually the largest cost, measured in evenings and weekends |
| Renewal | Continuing education, fees or re-examination on a fixed cycle |
Renewal is the cost people forget. Two common examples, from the official pages:
- CompTIA. Certifications such as A+, Network+ and Security+ expire three years after you earn them, according to CompTIA's renewal guide. Renewing requires earning continuing education units and paying CE fees before expiry, unless you renew by another route such as earning a higher-level certification.
- AWS. AWS certifications are valid for three years, and AWS offers renewal options that vary by certification level.
If you hold several credentials, these cycles add up. Before adding a new one, ask if you will still want it in three years, because keeping it will cost time or money. It is also fine to let a credential lapse once it no longer matches your work. Expired certifications can still go on a résumé with their dates, and an honest "(expired)" note is better than letting a recruiter find out on a verification check.
A sensible plan
If you are entering IT, pick one foundational certification that appears in the postings you want, pass it, then put your effort into a home lab or real project that uses the same skills. If you are targeting defense work, confirm the work role and the requirement in the posting before you study. If you are already experienced, pursue a certification only when a specific employer, contract or platform move calls for it.