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14 Essential HR Functions (and How They’re Evolving with AI)
HR’s core functions haven’t gone away. But AI is changing how work gets done, which skills matter most, and how quickly HR is expected to make decisions.
· 22 min read
If you are here, you’re likely familiar with the core functions of HR: recruitment, workforce planning, performance management, L&D, total comp…these functions still make up the core of what HR does.
But what’s changing is the operating model behind them: AI is taking on more of the admin work HR does and giving teams faster access to workforce signals.
That raises the bar for the human side of the job. Since AI cuts down the time HR has to spend gathering information, HR teams are increasingly expected to turn that intel into action and finally hold a seat at the decision-making table.
This, of course, doesn’t erase the core functions of HR, but it does evolve them. And that’s why you’re here. In this guide, we’ll look at the 14 essential HR functions, what each is responsible for, and how AI is changing the work happening inside.
What is the role of HR in an organization?
The Human Resources (HR) department manages the employee lifecycle and the systems, policies, and decisions that support a company’s workforce.
They’re responsible for:
Recruitment and onboarding
Comp and benefits planning
Training and development
Employee relations and culture initiatives
Compliance and safety measures
HR is also the department behind strategic workforce planning and the company’s broader people strategy.
Now, with AI, HR functions are evolving alongside the workforce itself. As in other domains, AI is automating HR’s more transactional work, and it’s changing which skills companies need to hire for and how roles are structured.
How is strategy tied to the HR business function?
HR strategy is what translates the broader business goals into the workforce decisions that help meet them.
Let’s look at an example: A company goal is to enter a new market next quarter. The HR strategy would answer questions regarding which roles and skills are needed, where capacity should shift, how to address talent gaps, and whether to hire, redeploy, reskill, or redesign work across the org, all within the constraints of the company budget and timeline.
How do HR teams accomplish this? A useful way to think about how HR’s functions support the broader business strategy is through the lens of Understand, Plan, Activate:
14 must-have HR functions in every enterprise-scale organization
Large orgs need more than a few core HR processes. As the workforce grows, HR’s functions grow along with it, encompassing a wider set of responsibilities across talent, workforce planning, employee experience, compliance, and data.
What's different now? AI is changing each of these elements at breakneck speed. At the most fundamental level, integrating AI into HR systems makes the collection and processing layer (e.g., screening resumes, flagging compliance gaps, assembling headcount reports, drafting job descriptions, surfacing attrition signals) easier and faster than ever.
Critically, the judgment layer stays human, but the skill mix is shifting from processing work to interpretation, scenario modeling, and stakeholder influence. What’s more, it may mean a wider scope per person, with teams now able to cover more ground.
With that in mind, here are the 14 HR functions that matter for enterprise-level organizations today, and how they are changing at the speed of AI.
1. Talent acquisition and talent management
Do we have the people and skills we need, and can we attract or retain them as those needs change?
Talent acquisition and talent management cover how your company attracts, hires, develops, moves, and retains its people. Those in charge of this HR function ensure the business has the people and skills it needs now and in the future as priorities change.
What it covers:
Workforce and hiring needs
Talent sourcing and recruiting
Candidate selection
Internal mobility
Succession planning
Engagement and retention
Employee development
The data behind it:
Time to fill
Quality of hire
Offer acceptance rate
Internal mobility rate
Voluntary turnover rate
Vacancy rates for critical roles
What’s changing?
Talent decisions are getting more granular. Visier’s 2026 State of Workforce Transformation research found that overall hiring rates fell from 29% in 2022 to 22% in 2026, while demand shifted sharply between roles and experience levels. For instance, in Data & Analytics, AI engineer hiring grew by 251% while data scientist hiring fell by 32%.
This makes static hiring plans less useful. HR increasingly needs real-time signals to decide whether to hire, reskill, or move talent internally as demand changes.
2. Employee engagement, culture, and experience
What makes people want to stay, contribute, and do their best work?
You want to create an environment where employees can and want to perform at their best. You want to build an environment where they feel connected to the work they do, while also reinforcing the values that matter to the company. That’s what this aspect of HR is for. It covers how employees feel about their work, their workplace, and their relationship with the organization.
What it covers:
Company culture
Employee feedback
Recognition programs
Manager effectiveness
Retention and employee experience
The data behind it:
Employee engagement score
Employee Net Promoter Score (eNPS)
Voluntary turnover rate
Retention rate
Absenteeism rate
Employee relations case volume
What’s changing?
As AI reshapes roles and workflows, “employee experience” is more closely tied to change management.
Visier’s 2026 workforce data reveals a 176% increase in the share of Employee & Labor Relations specialists hired within HR, which tells us orgs now devote more attention to managing their existing workforce, workplace conflict, and compliance during workforce transformation.
AI-powered workforce intelligence tools can surface sentiment, turnover, and other workforce signals and even create predictive models for things like turnover risk. But experience and culture are very human, which means it’s up to the HR team to understand why people are struggling, communicate changes clearly, and decide where intervention is actually needed.
3. Performance management
Do employees know what strong performance looks like, and are managers helping them achieve it?
Performance management is the ongoing process of setting expectations, measuring employee contributions, discussing progress, and helping people develop in line with business priorities. Managers and employees work together here to plan, monitor, and periodically review progress toward their job goals and overall performance with the company.
What it covers:
Individual and team objectives
Regular check-ins, feedback, and coaching
Formal performance reviews and ratings
Employee recognition and development
Addressing underperformance
Using performance results to inform promotion and reward decisions
The data behind it:
Goal completion rate
Performance rating distribution
High-performer retention
Manager effectiveness
What’s changing?
Annual reviews haven’t disappeared, but the cycle has gotten shorter. Feedback and objectives now shift as business priorities do. Gallup found that employees who get daily rather than annual feedback are 3.6x more likely (opens in a new tab) to say they’re motivated to do outstanding work.
The bigger shift is what you measure managers on. What happens when your strongest individual contributor gets promoted, and then suddenly rates their own team generously? If you’re still measuring the manager, not the team they’re responsible for, there is a gap in visibility there.
Visier research among 22 HR leaders found that organizations are closing that gap with team-level evidence: 65% now use engagement data in manager reviews, and 55% track regrettable attrition by manager. With AI now in the picture, connecting these numbers with individual manager performance is easier than ever.
4. Total rewards
Are we rewarding people fairly, competitively, and in a way the business can sustain?
Total rewards is the full package employees receive in exchange for their work, including compensation, benefits, well-being programs, career opportunities, and recognition. For HR, the challenge is deciding where to invest a finite rewards budget so employees are paid competitively and fairly while also keeping these costs affordable for the business.
What it covers:
Base pay, bonuses, incentives, and equity
Health, retirement, leave, and other benefits
Job evaluation, leveling, and salary structures
Market pricing and salary benchmarking
Pay equity and transparency
Well-being and recognition programs
The data behind it:
Compa-ratio
Total workforce cost
Pay gaps
Benefits participation and utilization
Actual rewards spending vs. plan
Turnover by compensation level
What’s changing?
Healthcare costs are rising, employees expect more choice in benefits, and pay transparency rules are forcing organizations to explain how they make compensation decisions. WorldatWork identified these as the core issues that shaped total rewards in 2025. (opens in a new tab)
As a result, workforce intelligence is more important than ever. Inari’s team used to run merit cycles out of stacked spreadsheets and performance evaluations on tight timelines. With Smart Compensation, Inari set up mid-year promotion and adjustment planning in 10 minutes. Now the finance team can pull comp data directly without borrowing HR’s time.
5. Career and succession planning
If one of your key people left tomorrow, who could take over, and how ready would they be?
Career and succession planning maps how employees can grow within the organization and identifies who could step into business-critical roles when they open up.
Career pathing and succession planning differ, but the two work together: the former helps employees see where they can go next, while the latter protects business continuity.
What it covers:
Talent reviews and readiness assessments
Leadership and specialist pipelines
Development plans for potential successors
Internal mobility and promotions
The data behind it:
Internal fill rate
Internal mobility rate
Promotion rate
Successor risk analysis
Succession coverage (share of critical roles with identified successors)
Ready-now successor coverage (roles with at least one person prepared to step in immediately)
What’s changing?
Succession is shifting from an annual snapshot to continuous talent mapping: real-time performance, project outcomes, and skills assessments living within a live inventory of internal candidates.
HR teams can now combine performance, promotion history, skills, mobility, and retention risk to see where leadership pipelines are strong and where they’re vulnerable. For example, Experian used Visier Workforce AI to identify high-potential middle managers on track for senior leadership to then build succession plans around those with elevated resignation risk. This helped reduce the risk of losing some of their most influential employees.
6. Learning and development
Which capabilities are we missing, and where do we need to invest to build them?
Your people already know their work is changing. Only 21% strongly agree their employer is giving them the training and support to keep up, and when Visier asked 1,000 employees what would help, training and upskilling topped the list. This sat way ahead of job security.
Learning and development is how an organization builds the skills employees need to perform today, grow into new roles, and keep pace as the work itself changes.
What it covers:
Onboarding and role-specific training
Upskilling and reskilling
Leadership and manager development
Compliance training
Professional and career development
The data behind it:
Training participation and completion rates
Compliance training completion
Performance after training
Promotion and internal mobility after development
Retention among learning participants
What’s changing?
L&D increasingly has to respond to specific capability gaps; Visier found that 56% of business leaders consider AI- and technology-driven skill shifts business-critical. So HR is under more pressure than ever to identify specific gaps before choosing where to invest in training.
At the same time, HR team members in charge of this function need to look beyond participation and completion rates to see how they impact the business at large. At Reece Group, Visier analysis found that new hires who failed to complete onboarding were five times more likely to leave within 12 months. That turned onboarding completion into something more useful than an activity metric: an early indicator tied to retention and inflated hiring costs.
7. Workforce planning
What people, skills, and capacity is the business going to need next, and what’s it going to take to get us there?
Workforce planning is the connective function that uses inputs from across your business to determine the kind of people you need, evaluate what skills you currently have and don’t have, and anticipate the skills and people you’ll need in the future.
Using L&D as an example: L&D asks how to close the gap through development, but workforce planning asks a broader question: should the organization address the gap through hiring, reskilling, redeployment, automation, or a combination of these approaches?
What it covers:
Headcount and capacity requirements
Future skills and role needs
Workforce costs and budget constraints
Hiring, mobility, and attrition assumptions
Workforce structure and labor mix
Scenario planning
The data behind it:
Headcount vs. plan
Hiring pace vs. forecast
Turnover rate
Internal mobility rate
Total cost of workforce
Workforce cost vs. budget
What’s changing?
The number of tasks we’re automating with AI is increasing exponentially. Gartner predicts (opens in a new tab) that 40% of enterprise apps will include task-specific AI agents by the end of 2026.
If HR and Finance plan only for employee headcount, they can miss the cost of the AI capacity doing part of the work. Running AI agents and the supporting technology (not to mention the as-required specialists to build and maintain those systems) are costs HR departments will have to weigh alongside their conventional hiring and workforce costs.
Total cost of workforce now includes AI and its architecture, as well as people. As token costs soar, this new way of work is already dramatically changing what it actually costs to get the work done.
8. Organizational design
What’s the best way to structure work, accountability, and corporate hierarchy so that the company operates in its strongest capacity?
Workforce planning and organizational design are closely linked HR functions, but they solve two separate problems. Workforce planning determines what people and capabilities the business needs, while organizational design focuses on how you should structure authority and accountability within your workforce so that work gets done most effectively.
If you’re building a house, you’ll need a blueprint first, then a specific set of materials that make that blueprint a reality. Organizational design is your blueprint, and workforce planning covers the “materials” part of the equation.
What it covers:
Reporting lines and decision rights
Team structure and composition
Spans of control
Management layers
Role clarity and accountability
Restructuring, M&A, and other major changes
The data behind it:
Manager-to-employee ratio
Team size
Headcount by organizational unit
Workforce cost for current and proposed structures
What’s changing?
You approve a reorg, then a year later find out what it actually cost. That’s the old way of handling organizational design—and it’s no longer the only option. Org design now has to be a continuous, ongoing process that evolves as the business environment changes.
Which means it now requires tools to model every possible scenario before you commit. A 40,000-employee financial intelligence company has made this a reality. It replaced its costly consultant-led org design process with continuous scenario modeling in Visier. Now, its team can easily run span-of-control, layering, location, and acquisition-integration scenarios side by side and see the cost of each one before anything becomes permanent.
9. Administrative core HR
Can everyone who relies on HR data trust that the employee record is current and correct?
The administrative side of HR works as a centralized database and compliance backbone for your workforce. This function is mainly responsible for keeping your company’s employee information and day-to-day HR processes up to date. This is where HR maintains the system of record for who works for the company, where they sit, how they’re employed, and any changes that affect things like pay, leave, and access.
What it covers:
Payroll inputs and benefits administration
Time, attendance, and leave
Onboarding and offboarding administration
Promotions, transfers, and other employment changes
Employee HR requests and documentation
The data behind it:
Employee data accuracy and completeness
Payroll accuracy, processing times, and reprocessing rates
HR data validation issues
Employee case resolution time
What’s changing?
Automation is eating the repetitive work—reconciliation, validation, the manual cleanup. That makes the records themselves matter more, not less. An incorrect job code used to mean one bad report. Now it feeds your workforce models, triggers automated workflows, and shapes decisions on hiring, pay, promotions, and planning at scale.
That’s why Visier’s workforce transformation framework starts with unified, governed workforce data—consistent definitions and organizational context, so every system downstream is working from the same source of truth.
10. HR operations, risk, and compliance
Are our people practices consistent and compliant, and can we defend them if an auditor challenges them?
This function of Human Resources covers your policies, controls, and processes—specifically through the lens of legal compliance and employee risk. Unlike core HR, which focuses on maintaining employee records and facilitating routine employee admin, this function asks whether you’re carrying out those processes properly and whether you’re able to prove it.
What it covers:
Employment law and policy compliance
Employee relations cases and investigations
Workplace health and safety
Employee data privacy and access controls
Record retention and audit readiness
Required training, reporting, and policy acknowledgments
Collaboration with other departments to ensure compliance
The data behind it:
Compliance training completions
Employee relations case volume and resolution times
Audit findings and remediation statuses
Data privacy and access incidents
Workplace injuries and illnesses
What’s changing?
As companies automate more of their HR processes, many are finding their compliance burden is becoming more technical. If AI is able to influence so many HR decisions, governance, access controls, audit trails, and human oversight play a more foundational role.
The same principle applies to the technology handling that data. Visier, for example, uses role-based access controls that can automatically adjust as an employee changes role, team, or location, while audit logs give organizations a record of who had access to what.
11. Employee and labor relations
When workplace issues arise, are we resolving them effectively, and can we address patterns before they become companywide issues?
Your HR department is in charge of managing the working relationship between your people and the company. Any time someone raises a complaint about inappropriate conduct or how they’ve been treated, it goes to the team responsible for this HR function. The same team typically handles investigations and helps managers navigate disciplinary action.
If your workforce is unionized, employee and labor relations also covers collective bargaining, union grievances, and labor agreement administration.
What it covers:
Employee grievances and complaints
Workplace investigations
Disciplinary and corrective action
Harassment, discrimination, and conduct issues
Union relations and collective bargaining
Labor contract administration
The data behind it:
Employee relations case volume
Case type and severity
Time to resolution
Escalation rate
Post-case turnover
What’s changing?
Cases used to live in a file, one at a time. Now they’re a dataset. Three complaints about the same manager over 18 months look like three isolated incidents in a case log—and like a pattern the moment you can see them together. The shift is from resolving the case in front of you to knowing whether it’s one case or the fourth of its kind.
12. Employee well-being and support
Are the way we work and the support we provide helping our team stay healthy and productive?
An important part of your total rewards and broader employee engagement strategy has to do with health and well-being. “Well-being” encompasses everything you do to help employees stay physically, mentally, financially, and socially healthy enough to do their jobs sustainably.
What it covers:
Mental health and employee assistance programs
Leave, PTO, and benefits strategy
Remote work and flexibility options
Financial well-being support
Burnout and workload management
Manager support and accommodations
Access to health, safety, and wellness resources
Workplace health and safety policies
The data behind it:
Absenteeism
PTO and benefits utilization
Overtime levels
Burnout or well-being survey scores
EAP and well-being benefit utilization
Turnover associated with workload, stress, or well-being
What’s changing?
Today’s workers—particularly younger generations, which are projected to make up nearly three-quarters (opens in a new tab) of the global workforce by 2030—treat well-being as part of the employment deal.
Deloitte’s 2025 survey (opens in a new tab) of more than 23,000 Gen Z and millennial workers found that both generations weigh money, meaning, and well-being together when they make career decisions. Nearly nine in 10 said purpose matters to their job satisfaction and well-being.
This fundamentally changes what you have to measure as an employer. You can’t evaluate well-being solely based on whether your team uses a wellness benefit. You have to connect employee survey data with factors such as overtime, recognition, absenteeism, and turnover to show where work itself may be creating the problem. One of our customers in the manufacturing industry used that kind of analysis to build a business case for floating holidays, financial well-being support, and additional EAPs by linking employee experience and turnover patterns to their broader workforce data.
13. People analytics and workforce intelligence
Can we answer the workforce questions while the answers still matter?
People analytics is the function that turns workforce data into answers decision-makers can act on. It owns how metrics are defined, who can see what, and how insights reach the people making calls about hiring, pay, structure, and retention. Where HRIT builds the pipes, this function decides what flows through them and what it means.
What it covers:
Metric definitions, governance, and data standards
Recurring reporting and executive deliverables
Ad hoc analysis and research requests
Predictive modeling (attrition risk, vacancy forecasts)
Benchmarking against internal and external data
Self-service enablement for HRBPs, managers, and leaders
The data behind it:
Request volume and turnaround time
Share of analyst time on data prep vs. analysis
Self-service adoption and active users
Report and dashboard usage
Forecast accuracy
Decisions the function has measurably influenced
What’s changing?
The bottleneck used to be the analyst’s queue. Every question—headcount, turnover by region, flight risk in a critical team—came back to one small team, and the answer arrived after the decision. Experian ran exactly this way before moving to Visier, then pushed about two-thirds of its reporting capacity into self-service and retired an in-house attrition model that cost at least $30,000 per year to maintain.
GenAI accelerates everything again. When a business leader can ask a question in plain language and get a governed answer, the function stops being a service desk and starts being an advisory one. The harder part is what the queue was hiding: 87% of leaders call aligning workforce and business strategy their top need, and only 29% say their organization is good at it. Freeing up analyst time only matters if it goes toward closing that gap.
14. Human resources information technology (HRIT)
Can our HR systems, data, and automation reliably support everything our HR functions need to accomplish?
Human resources information technology, or HRIT, is the HR function that manages the systems, integrations, automation, and data infrastructure behind HR. If your HR team decides what needs to happen across the employee lifecycle, HRIT makes sure your tech can actually support it.
What it covers:
HRIS/HCM administration and system architecture
Integrations between HR, payroll, benefits, ATS, LMS, and other systems
Workflow automation and employee self-service
HR data governance, permissions, and security
Reporting and data pipelines
AI enablement and governance across HR technology
The data behind it:
System uptime and availability
HRIS data error rate
Integration failure rate
Workflow completion time
Self-service adoption
Time to deliver HR data or reporting requests
What’s changing?
HRIT is moving from administering systems to orchestrating them. Visier’s survey of 81 HR tech executives found 72% consolidating their stacks, budgets rising by 27% on average, and 76% with a GenAI strategy or pilot already underway.
That raises the stakes on what’s underneath. When agentic AI starts automating workflows across systems, a stale field or a broken integration no longer breaks one report—it propagates into every decision downstream. It’s why 95% of AI pilots fail on data (opens in a new tab), not on the model. The HRIT job is now ensuring the data can carry that weight.
How to ensure your HR functions work together
The 14 Human Resources functions above are easier to separate on paper than they are in practice. HR decisions are inherently complex and interdependent.
Let’s look at an example: One resignation makes teammates more likely to leave, and the risk peaks around 70 days out. Core HR logs the exit on day one. Engagement data picks up the shift weeks later. Talent acquisition feels it when the second and third reqs open. By the time workforce planning sees the hole, the 135-day window has closed.
Without a connected story across the entire employee lifecycle, you won’t have the context to address the root causes of your workforce issues. You’ll end up treating the symptoms one function at a time.
The fix isn’t better coordination between functions. It’s a shared view of the workforce that all 14 draw from, so insight in one place becomes action in another instead of dying in a handoff.
Bring your HR functions into one workforce strategy
Visier’s Talent Transformation Hub brings together research, frameworks, and customer stories for organizations trying to connect workforce intelligence, planning, and organizational design as work changes.
Explore the Visier Talent Transformation Hub
FAQ: Essential HR functions for 2026
What are HR functions?
HR functions are the tasks and responsibilities a company’s human resources team carries out in order to manage and support its workforce throughout the employee lifecycle. Together, they cover the policies, processes, decisions, and systems involved in workforce management.
What are the 5 main functions of HR?
Although Human Resources has more than a dozen functions across the department, HR’s five core functions are: recruitment and onboarding; compensation and benefits; employee training and development; employee relations and company culture; compliance and workplace safety.
Larger orgs normally divide these into more specialized functions like workforce planning, succession planning, organizational design, HRIT, and employee experience.
How is strategy tied to the HR business function?
Strategy is tied to the HR business function because every business goal and priority depends on having people with the right skills, capacity, and motivation to carry it out.
For example, if a company wants to enter a new market, leadership still has to answer the non-people questions around pricing, product, operations, and investment.
But the company needs HR to answer people-related questions like:
How many people will we need?
Which skills and roles matter?
Can we redeploy the people we already have, or do we need to hire?
How should we structure each team?
What will keep our people motivated to perform well?
Is payroll an accounting or HR function?
Payroll is a business function that sits between HR and Finance. HR is responsible for the employee information that determines what someone should be paid, such as salary, benefits, leave, and employment status. However, it’s the finance department that funds payroll, sets financial controls, handles tax reporting, and records payroll expenses.
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