Thailand Salary Structure Guide — Fair, Defensible Pay Bands

A salary structure is a framework that sets a minimum, midpoint, and maximum pay range for each job grade in a company, based on the value and responsibility of the work rather than an employee’s tenure. For Thai SMEs, a well-designed structure turns pay decisions — starting salaries, annual raises, promotions — into something the business can explain and defend, instead of case-by-case negotiation that erodes over time.

This guide covers what a salary structure is made of, why Thai SMEs typically build one, the Midpoint-Min-Max design process, and how to handle employees who fall outside the new ranges once it’s live.

What a salary structure is made of

Three pieces have to connect to each other for a structure to work in practice:

1. Job Grade — groups positions by the value of the work, level of responsibility, and decision-making authority, not by department or job title alone.
2. Salary Range — sets a minimum, midpoint, and maximum for each grade.
3. Administration rules — governs starting pay for new hires, annual adjustments, promotions, and how to handle employees who end up outside their grade’s range.

The number of grades and the width of each range shouldn’t come from a template. They should come from your actual org structure, what the business can afford, and the compensation philosophy your leadership wants to apply.

Signs it’s time to build one

A salary structure usually becomes worth building once informal pay decisions stop scaling. Signs that are commonly relevant:

• New hires earning close to, or more than, long-tenured employees in a comparable role
• No clear, consistent way to answer “why does this person earn this amount?”
• Compensation costs rising each year without a clear link to performance or the value of the role

None of these on their own means a structure is mandatory — they’re signals worth checking against your own situation before deciding to invest the time.

The Midpoint-Min-Max design process

Triple I HR Consulting designs salary structures using a Midpoint-Min-Max methodology, built around four reference points: Range Spread (how wide each grade’s range is), Overlap (how much adjacent grades’ ranges intersect), Midpoint Progression (how much the midpoint increases from one grade to the next), and Compa-Ratio (where an individual’s actual pay sits relative to their grade’s midpoint).

The process runs in two stages:

1. Organizational & job level review — analyze the org chart, define major and sub-levels, validate titles against actual responsibility, reassign positions where titles and duties have drifted apart, and produce a master position sheet.
2. Salary structure design — analyze existing compensation data, design each grade’s Min-Max-Midpoint range, identify employees who fall outside their grade’s range, build the working tool, and hand it off with training so HR can maintain it independently.

A Thailand-specific check applies at the bottom end: the statutory minimum wage is set by a government wage committee, varies by province, and is revised periodically — the minimum for your lowest grade has to clear the current rate for wherever your business actually operates, not a number from a guide written at a different point in time.

Handling employees outside the new range

Building the ranges is the easier half. It’s common for some current employees to fall outside the new grade ranges the first time a structure goes live, and how you handle them determines whether the structure sticks.

Red Circle — pay above the grade maximum:

Option	What it means
Salary freeze with payout	Hold base pay, pay the gap as a one-time or periodic amount instead of folding it into base salary
Lump-sum over a fixed period	Pay the above-range amount as a lump sum instead of a recurring raise, typically phased over roughly 24 months
Promote to the next job level	If the role’s actual responsibility justifies it, move the person — and their pay — into the next grade instead of treating them as an exception

Green Circle — pay below the grade minimum:

Option	What it means
No action	Leave pay as-is if the gap is small and there’s a specific reason (e.g. recent hire still ramping up)
Adjust to the minimum	Bring pay up to the grade floor immediately
Peer-reference	Set the adjustment relative to peers already inside the range, not just the floor
Gradual phase-up	Close the gap over several review cycles instead of one large adjustment

Do it yourself, or bring in a consultant?

Either can work, but they fail in different ways. Building a structure internally runs into three recurring traps:

• Bias and politics — internal HR rarely has enough leverage with senior executives to hold a grading line that affects someone senior’s pay
• The compromise effect — short-term compromises made to keep everyone comfortable during the design phase tend to produce a structure that breaks down over the long term
• No neutral buffer — an external consultant absorbs friction between departments and levels that an internal team has to live with afterward

Designing a salary structure doesn’t require starting with an expensive market survey. What matters more first is understanding your own context — how many real job levels exist, how they group together, and what the business can actually afford — before bringing in outside benchmarks.

Related reading

• What Is a Salary Structure — and Why Your Business Needs One — the shorter introduction to the same topic
• Salary Structure Design — Triple I’s service page, including the full FAQ on methodology, timeline, and pricing
• โครงสร้างเงินเดือนคืออะไร คู่มือออกแบบสำหรับองค์กร SME ไทย — the full Thai-language pillar guide, linking to in-depth articles by industry and situation

Considering a salary structure project?

Triple I HR Consulting designs salary structures for Thai SMEs from job-level review through to range design and handoff, with a working tool your HR team can maintain independently afterward.

Book a free 30-minute consultation to talk through your current situation and rough project scope.