Annual Salary and Seniority-Based Pay Systems
Annual Salary vs. Seniority-based Pay
What are annual salary and seniority-based pay systems?
- Seniority-based pay follows tenure; annual salary sets each person’s total individually
- What matters is not the name but what drives the raises
- Statutory pay premiums still apply under an annual salary
Moving from a seniority-based step system to an annual salary system shifts the power to decide raises from a table to people. Under a step system, the answer to “how much for year X, grade Y” is already written down, so HR only has to calculate; under an annual salary system, someone has to sign off on each individual’s amount every year. The real burden of the switch therefore moves from the payroll system to whether raters can explain that amount. Agree with management up front that total labor costs don’t shrink on their own: the change is dividing the same budget differently.
The real axes that define a pay structure are seniority-based, skill-based, job-based, and performance-based pay. The annual salary system and the seniority-based step system are better understood as names for the decision unit and payment method layered on top of them. The annual salary system is not defined in Korea's Labor Standards Act, so switching to it does not change your legal obligations. Complying with the minimum wage, calculating ordinary wage, and paying premiums for overtime, night, and holiday work all still apply. The annual salary system, the comprehensive wage system, and performance-based annual pay are separate concepts at different levels, yet in practice they are often lumped together.
Three questions need answers first at the design stage: whether it covers all employees or only those above a certain grade, where to split base pay from performance pay, and how wide to let pay vary with performance. If the range is too narrow, employees don’t feel the difference and the system becomes a formality; if it is too wide, people’s everyday income feels unstable and resistance grows. If ratings have clustered in the middle for years, any ratio you design ends up the same as an across-the-board raise, so fixing the rating distribution comes first.
The most common problem starts with a single line in the salary contract. A contract says only 'annual salary KRW 42 million (≈ US$31,400) (including allowances)' and pays no separate overtime; when a former employee files a complaint, the company may have to repay several years of back pay. To pay overtime as a lump sum, the contract and pay slip must state separately how many hours of fixed overtime the payment covers and how much is paid for them. The same goes for procedure. A change that eliminates seniority-based step increases works against employees, so without the consent of a majority of employees the change itself is void, and the difference calculated under the old pay grade table must be paid again. What an annual salary system in name only leaves behind is not cost savings but a record of unpaid-wage complaints.
Kyungtae KimHR expert · Organizational culture and HR strategy consultant
Inwoo LeeLeadership, communication, and performance management expertThe seniority-centered step system took hold amid long-term employment practices, and after the 1990s, as performance-based HR spread, more companies adopted annual salary systems. Reform of wage structures has since continued alongside the discussion of job-based pay.
Company A, a precision-parts manufacturer with 240 employees and annual revenue of KRW 62 (≈ US$1) billion, has used a seniority-based pay grade system since its founding 27 years ago. As average tenure rose to 14 years, total labor costs began to grow faster than revenue, and each experienced manager it hired out-earned existing staff, a problem that kept recurring. (Hypothetical example)
- When the head of HR went through the last three years of payroll ledgers, 3.6 percentage points of the 4.8% annual rise in labor costs came from step promotions and regular raises, and only 0.4 points were tied to performance.
- When the head of production asked, "Every rating has been a B for three years, so how are we supposed to differentiate salaries?", they decided to fix the rating distribution first and ran two 6-hour rater training sessions for 22 team leaders.
- The CEO and HR team decided to convert only the 78 employees at manager level and above first, setting pay at 85% base salary plus 15% performance salary, with the performance portion varying ±30% so total pay would range within ±4.5%.
- An individual simulation showed that 11 of 78 employees would earn less than the previous year, with a maximum decrease of KRW 2.4 (≈ US$1) million, so they added a transitional provision paying a pay-protection allowance for two years.
- With advice from a labor attorney, they revised the rules of employment, held three briefings to reach an 81% consent rate, and listed the fixed overtime amount for 20 hours separately from base pay in the annual salary contract.
- One year after the switch, the pay gap between top- and bottom-rated employees in the same grade widened to as much as KRW 6.8 (≈ US$1) million, labor cost growth fell from 4.8% to 3.1%, and voluntary resignations at manager level dropped from 4 to 1.