How to Calculate What “Just Keep Using It” Really Costs
Here’s a simple example: if slowdowns, freezes, and restarts cost an employee 15 minutes a workday, that’s 62.5 hours over 250 workdays. At a labor cost of $30 per hour, that time is valued at $1,875 a year, before any additional IT support costs. These are illustrative figures, not a guaranteed saving; the real question is how much of that time a replacement would recover.
The impact may be greater in roles where delays affect billable or revenue-generating work: sales staff waiting on CRM software, designers waiting for large files to open, or anyone whose computer slows down the next task.
The Hidden Costs Nobody Puts on a Spreadsheet
Lost productivity is a major consideration. Older computers can slow down as software demands change and components wear. Small delays add up across the tasks an employee does each day. A computer that takes two extra minutes to boot, three extra seconds to open an application, and occasionally freezes isn’t necessarily saving money just because you haven’t replaced it.
Then there’s support cost. Aging machines may need more troubleshooting or repairs, especially as components wear out. Each issue can interrupt the employee’s work and take time from whoever is fixing the problem.
Security matters, too. Some older computers can’t meet the requirements for supported operating systems or newer security features. Standard Windows 10 support ended on October 14, 2025. Businesses still using it should review upgrade or Extended Security Updates options. A computer can keep running even when its software is no longer receiving routine security updates.
How Long Should a Business Computer Actually Last?
For standard office use, three to five years is a useful planning window for reviewing a business laptop or desktop, not a fixed replacement deadline. A computer may remain useful longer if it performs well, runs supported software, and meets the needs of the role. Specialized workstations for design, engineering, or CAD should be reviewed against their software and performance requirements rather than a set age.
It also matters what kind of machine you bought in the first place. Consumer-grade laptops bought on sale may not offer the same durability, repair options, or support as business-class machines. If your business buys solely on upfront price, repairs and earlier replacements can reduce those initial savings.
Signs It’s Actually Time to Replace
Startup or application loading is consistently slow enough to interrupt work
The fans run loudly during simple tasks, even after routine maintenance
It can’t run a supported operating system or required software
Employees avoid certain tasks because the computer is too slow
It’s needed repeated hardware repairs in the past year
Budgeting for Replacement Without the Sticker Shock
A rolling replacement cycle can make budgeting easier: refresh a portion of your computers each year instead of waiting until several need attention at once. This spreads costs across budget cycles and gives you time to prioritize machines with the most performance, support, or compatibility issues.
Not sure which computers are worth keeping? Start with the ones causing recurring delays, repairs, or software support issues. If you want help fitting those decisions into your broader IT plans, let’s talk.
Frequently Asked Questions
How often should a business replace computers?
Three to five years is a reasonable planning window for reviewing standard office computers, but replacement should depend on performance, condition, and software support. Specialized workstations may need attention sooner if their workloads demand it.
Isn’t it cheaper to keep using an old computer until it breaks?
Not always. An older computer may still be cost-effective if it performs well and remains supported. Compare its lost work time, repair costs, and software compatibility with the full cost of replacing it.
How can I tell if a slow computer is actually costing us money?
Track how much time is lost to slow startups, freezes, and applications, then use your labor cost and annual workdays to estimate the impact. Compare that estimate with repair and replacement costs. Not every lost minute will necessarily be recovered by buying a new computer.
Should we replace all our computers at once or stagger it?
A staggered replacement schedule often makes budgeting easier. But replacing several computers at once may make sense if they share a major security, compatibility, or reliability problem.
Does upgrading RAM or storage help instead of replacing the whole computer?
Sometimes. Adding memory or moving to faster storage can extend a computer’s useful life if its other components and software support are still adequate. Compare the upgrade cost with the performance you need and the likely remaining lifespan.
What should we do with old computers once we replace them?
Before computers are reused or recycled, make sure the storage is properly sanitized using an appropriate method. NIST’s media sanitization guidance explains how to approach data removal. For recycling, the EPA recommends certified electronics recyclers, such as those certified to R2 or e-Stewards standards.
Is leasing computers a better option than buying?
It depends on cash flow, refresh needs, and contract terms. Leasing may make regular replacements easier to budget for, while buying may cost less over time. Compare the total cost of each option before deciding.