Best Practices and Mistakes When Buying an ATS: Your Complete Do's and Don'ts Guide
Choosing the right Applicant Tracking System (ATS) is one of the most consequential decisions an HR team can make. Get it right, and you'll streamline your entire hiring pipeline, save thousands of hours, and consistently attract top-tier candidates. Get it wrong, and you'll be dealing with expensive migrations, frustrated stakeholders, and missed hires for months — or even years. Whether you're a growing startup or a mid-sized enterprise, this guide walks you through the most important best practices and the most common mistakes HR professionals make when purchasing an ATS.
Do's: Best Practices When Buying an ATS
Do Ask for a Proper Budget
One of the first and most important steps in the ATS buying process is securing a realistic budget. Many HR teams make the mistake of underinvesting or accepting whatever minimal budget they're handed — but that approach can backfire quickly. An ATS has the potential to generate a significant return on investment by reducing time-to-hire, eliminating manual tasks, and ensuring no strong candidate slips through the cracks.
Before approaching your finance department, build a compelling business case. Calculate the hours your team currently spends on manual screening, interview scheduling, and candidate communication. Translate those hours into dollar amounts. Show how a robust ATS can reduce cost-per-hire and decrease the administrative burden on your team. With solid data, you're far more likely to walk away with a budget that gives you access to a genuinely capable tool.
While there are free ATS options available, these are generally built for small teams with minimal hiring needs. If your organization is growing or has complex recruitment workflows, a free tool will quickly become a bottleneck rather than a solution.
Do Think Long Term
An ATS isn't a short-term fix — if you choose the right one, your team will be using it for years. That means you need to resist the urge to rush the decision. Give yourself and your team enough time to research multiple vendors, attend product demos, and speak with current users of each platform you're evaluating.
Long-term thinking also means looking beyond your current needs. Will the system scale with you as your company grows? Does it support international hiring if you plan to expand globally? Can it integrate with your existing HR tech stack, including payroll, onboarding tools, and HRIS platforms? These are the questions that separate a smart ATS investment from a costly mistake.
Migrating from one ATS to another is not only time-consuming but also expensive. You risk losing valuable candidate data, disrupting ongoing recruitment processes, and spending significant resources on retraining your team. Taking the time upfront to find the right fit is always more efficient than fixing a poor choice later.
Do Secure Internal Buy-In
Even the best ATS on the market will fail if your team doesn't adopt it. That's why securing internal buy-in before making a purchase is absolutely critical. Start by engaging with key stakeholders — hiring managers, department heads, and anyone else who plays a role in your recruiting process. Make sure they understand the problem you're solving and how the new system will make their lives easier.
Resistance to change is natural, especially when it comes to new software. By involving stakeholders early in the evaluation process, you create a sense of ownership. When people feel heard during the selection process, they're far more likely to embrace the tool once it's implemented. Consider creating a small internal committee to evaluate shortlisted vendors, and gather feedback from the people who will use the platform day-to-day.
Don'ts: Common Mistakes to Avoid When Buying an ATS
Don't Skip the Demo Phase
A sleek product website and a convincing sales pitch are not enough to make a purchasing decision. Always request live product demonstrations from each vendor you're seriously considering. Use these sessions to test real-world scenarios — how does the system handle high-volume applications? How intuitive is the candidate pipeline view? How easy is it to collaborate with hiring managers on feedback?
If possible, request a free trial or pilot period so your team can interact with the software before committing. First-hand experience reveals things that no brochure ever will.
Don't Focus Only on Features
It's tempting to compare ATS platforms based purely on their feature lists. More features can feel like better value, but this logic often leads to overpaying for functionality you'll never use — or choosing a bloated system that's harder to learn and implement. Instead, map out your actual hiring workflow and identify which features are truly essential for your team. Focus on solving your specific problems rather than being dazzled by an exhaustive feature set.
Don't Ignore Vendor Support and Training
Post-purchase support is frequently overlooked during the buying process, yet it's one of the most important factors in long-term satisfaction. Ask each vendor about their onboarding process, the availability of customer support, and what training resources they provide. A vendor that offers responsive, knowledgeable support can make the difference between a smooth rollout and a frustrating implementation experience.
Don't Neglect Compliance and Data Security
Your ATS will handle sensitive candidate data, which means compliance with regulations like GDPR or CCPA isn't optional. Before signing any contract, verify that the vendor takes data privacy seriously and can demonstrate compliance with relevant regulations in your region. Ask about data encryption, access controls, and what happens to candidate data if you decide to switch providers down the road.
Final Thoughts
Buying an ATS is a significant investment in your organization's future hiring success. By securing the right budget, thinking long term, building internal alignment, and avoiding common pitfalls like skipping demos or ignoring vendor support, you put yourself in the best possible position to make a decision you and your team will be happy with for years to come. Take the time, do the research, and treat this decision with the strategic importance it deserves.