Quick answer: An applicant tracking system (ATS) manages candidates, from the moment they apply until they accept an offer. A human resources information system (HRIS) manages employees, from their first day until they leave. The accepted offer is the handoff. Small teams that are growing usually feel the hiring pain first, so they start with an ATS and add an HRIS when payroll, contracts and time off get messy.
What does an ATS do?
An ATS runs the hiring process for open roles.
- Publishes jobs to your careers page and job boards
- Collects applications in one place
- Screens and ranks CVs
- Moves candidates through stages
- Schedules interviews and stores feedback
- Sends candidate emails and rejections
- Reports time to hire and which sources produce hires
The people in an ATS are mostly not your employees and most never will be. If you get 200 applications and hire one person, 199 records are for people who’ll never join. For a deeper intro, read what an applicant tracking system is.
What does an HRIS do?
An HRIS is the system of record for employees.
- Personal and contract details
- Job title, team, manager, salary history
- Time off and absence tracking
- Documents like contracts and policies
- Often payroll, benefits and tax forms, or a connection to a payroll provider
- Org charts and headcount reports
Related terms you’ll see: HRMS (human resource management system) and HCM (human capital management). Vendors use them loosely. HCM usually means a bigger suite that adds performance, learning and workforce planning.
ATS vs HRIS: side by side
| ATS | HRIS | |
|---|---|---|
| Who’s in it | Candidates | Employees |
| Starts | Application | First day (or accepted offer) |
| Ends | Hire or rejection | Employee leaves |
| Main users | Recruiters, hiring managers, interviewers | HR, payroll, managers, employees |
| Typical features | Job posting, screening, interviews, candidate email | Records, time off, payroll, documents |
| Data volume | Many people, short time | Fewer people, long time |
| Data protection focus | Retention limits for rejected applicants | Employment records, payroll, tax |
That last row trips people up. Rejected candidates’ data should usually be deleted after a set period. Employee records often have legal minimum retention periods. Mixing the two in one system without clear rules causes problems. See how long to keep job applications under GDPR and RODO.
Can one system do both?
Yes, partly. Many HR suites include a recruiting module, and some recruiting tools add light onboarding.
The tradeoff is depth. A recruiting module inside an HR suite is often enough for occasional hiring. If you hire regularly, it tends to be thinner on the things that decide hiring speed: screening, scheduling, candidate communication and pipeline reporting.
Our comparisons go into this for specific vendors: Canvider vs BambooHR looks at an HR suite against a dedicated ATS, and Canvider vs UltiPro does the same for an enterprise HCM.
Which one should a small business buy first?
Buy the one that fixes the problem you have today.
Start with an ATS if:
- Candidates wait days or weeks for replies
- Applications arrive in several inboxes and a spreadsheet
- You’re hiring more than one role at a time
- You can’t say where your hires came from
Start with an HRIS if:
- Payroll is error-prone or done by hand
- Contracts and documents live in personal folders
- Time off is tracked in chat messages
- You’re worried about employment record compliance
Many small teams also find that payroll is handled well enough by an accountant or payroll provider for a while, so the HRIS can wait while hiring can’t.
How do the two connect?
The handoff happens at the accepted offer. The new hire’s name, contact details, role, start date and salary move from the ATS to the HRIS.
At small scale, doing this by hand is fine. It’s one form per hire. At larger scale, look for a direct integration or an export so nobody retypes data.
Where Canvider fits: Canvider is an ATS. It doesn’t include payroll, time off or employee records, and there’s no built-in HRIS sync today. You can export analytics data to Excel, and Canvider offers MCP API access that lets AI assistants query your hiring data. For the first week after the offer, our onboarding checklist after the ATS covers what to hand over and when.
What does each cost?
Pricing varies too much to give one number, but the models differ.
- HRIS is usually priced per employee per month, so cost grows with headcount.
- ATS pricing is usually by plan, open jobs or users, so cost grows with hiring volume. See ATS pricing in 2026.
For reference, Canvider’s Simple plan is free (up to 2 listings a year, 1 user), Pro is €80 a month (up to 10 listings a month, 5 users), and Enterprise starts at €200 a month.
The short version
Candidates in one system, employees in another, a clean handoff at the offer. If hiring is what’s growing, fix that first.
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Frequently asked questions
What is the difference between an ATS and an HRIS?
An applicant tracking system (ATS) manages people who applied for a job, from application to offer. A human resources information system (HRIS) manages employees once they're hired: personal records, contracts, time off, and often payroll and benefits. The handoff point is the accepted offer.
Does an HRIS include an ATS?
Some do. Many HR suites include a basic recruiting module. These modules are usually lighter than a dedicated ATS, with fewer screening, scheduling and candidate communication features. If hiring is a big part of your year, a dedicated ATS often does that part better.
Which should a small business buy first, an ATS or an HRIS?
It depends where the pain is. If you're losing candidates, slow to hire, or screening in an inbox, start with an ATS. If payroll, contracts and time off are the mess, start with an HRIS or payroll provider. Many small teams need the ATS first because hiring is what's growing.