A recruiter in Singapore once described the Employment Pass process to a candidate as "basically a formality once you have the offer letter." That candidate spent six weeks watching the application sit under review, then got rejected because their salary landed one point short on a scoring system nobody had mentioned in the interview. Every one of the four biggest expat-hiring markets in Asia has its own version of that surprise, and the gap between what a job offer promises and what immigration actually requires is where most relocation timelines fall apart.
Singapore's Employment Pass runs on a points table, not a salary line
The headline number is straightforward enough: the minimum qualifying salary for an Employment Pass in 2026 is S$5,600 a month, rising to S$6,200 in financial services. What catches people out is that clearing the salary floor doesn't guarantee approval — it just gets the application into the room. Every EP case (unless the fixed monthly salary is S$22,500 or above, which exempts it entirely) is scored under COMPASS, the Complementarity Assessment Framework the Ministry of Manpower introduced in 2023. Applicants need 40 points minimum across six criteria: salary relative to local PMET benchmarks, qualifications, the employer's mix of nationalities on staff, how much of the local workforce the company already employs, and two bonus categories tied to shortage occupations and strategic sectors.
The salary criterion alone is worth dwelling on, because it's the one candidates assume they've already satisfied by clearing the minimum. Meeting the 65th percentile of local salaries for your role and sector earns 10 points; the 90th percentile earns 20. Fall below the 65th percentile and that criterion scores zero — meaning a candidate can be paid well above the S$5,600 floor and still contribute nothing to their COMPASS total from salary alone, forced to make up the shortfall through qualifications or the employer's diversity profile instead. Renewals aren't exempt from any of this either: as of 1 July 2026, MOM now assesses every EP renewal under the updated COMPASS criteria, not just fresh applications. And the floor keeps climbing — from 1 January 2027 it rises again, to S$6,000 generally and S$6,600 in financial services, so an offer that clears the bar today may not clear it at renewal in eighteen months.
Thailand: two separate documents, one employer, zero flexibility
Thailand's system trips people up for a different reason — it's actually two bureaucracies operating on separate tracks that happen to both be mandatory. The Non-Immigrant B visa gets you into the country on a work-related basis, but it does not, on its own, authorise you to earn a salary. That requires a Work Permit issued separately by the Ministry of Labour, and until the e-Work Permit system went mandatory in October 2025, the paper version of that second document was a routine cause of missed start dates.
Salary thresholds aren't uniform across nationalities, which is unusual enough that first-time applicants often assume it's an error. The Thai Immigration Bureau sets a sliding scale from THB 25,000 to THB 50,000 a month depending on country of origin — citizens of Japan, the United States and most of Western Europe are held to the THB 50,000 floor, while nationals of several Asian and African countries face lower thresholds for the same job. For anyone employed by a BOI-promoted company, a fresh layer of rules kicked in on 1 January 2026: BOI Announcement Por.8/2568 sets mandatory minimum salaries by role, with degree-holding engineers and IT staff needing at least THB 50,000 a month or the work permit gets rejected outright, no negotiation. The permit itself is tied to one specific employer, full stop. Switch jobs and the existing permit has to be cancelled before the new employer files a fresh application — in some cases requiring an exit from Thailand and re-entry on a new Non-B visa before the new permit can even be submitted. This is the detail that catches long-term expats worse than newcomers: a Non-B holder who's been in-country for three years and gets a better offer from a competing firm can still lose weeks of income sorting out the handover, because Thai immigration treats the permit as belonging to the job, not the person.
Vietnam tightened the rules in 2025 — and added a real exemption
Vietnam is the only one of the four that actually rewards showing up less.
Vietnam's work permit regime changed meaningfully with Decree No. 219/2025/ND-CP, which took effect on 7 August 2025 and reshaped several provisions foreign workers had relied on under the older Decree 152/2020. The baseline qualification bar remains a bachelor's degree relevant to the role plus at least three years of matching experience, or five years of professional experience without the degree requirement — alongside a health certificate issued within the last twelve months and a criminal background check, notarised and consular-legalised, that's less than six months old at submission. The genuinely new piece is the 90-day exemption. Under Decree 219, foreign nationals who work in Vietnam for 90 cumulative days or fewer within a calendar year no longer need the full work permit — and critically, that count is cumulative across every entry in the year, not reset per trip. A regional manager flying in for five-day board meetings twelve times a year lands at 60 cumulative days and stays exempt; a consultant brought in for one continuous 100-day project does not, even though it's a single stay.
Don't mistake exemption for no paperwork, though. Anyone using the 90-day carve-out still needs a Work Permit Exemption Certificate from the provincial Department of Labour, Invalids and Social Affairs before starting work — skip that step and Vietnamese authorities treat it identically to working without a permit at all, fines included. File for it at least 30 days ahead of the start date. Once issued, the certificate runs for up to two years and doubles as the basis for a temporary residence card application, which is more than the old system offered short-term workers.
Japan's Highly Skilled Professional visa: the fastest route to permanent residency, if the maths works
Japan takes a different approach entirely — instead of a salary floor and a fixed checklist, the Highly Skilled Professional visa scores your whole profile against a points table, and 70 points unlocks a genuinely different tier of treatment. A doctorate is worth 30 points, a master's 20, a bachelor's 10; work experience adds up to 25 points at the ten-year mark, tapering down through 20 points for seven years and 15 for five, with further bonuses available for a Japanese-earned degree, JLPT N1 fluency, patents held, or published research. The minimum annual income requirement is comparatively low at ¥3 million, which tells you the visa is built to select for credentials rather than pay grade.
Score 70 points and permanent residency becomes available after three years instead of the standard ten; hit 80 points and that drops to one year — the single biggest advantage the HSP visa holds over every other route into Japan. Type 1 HSP restricts holders to the specific professional activity they were approved for, while Type 2 removes most of those restrictions and functions close to unrestricted work authorisation. Newer complementary routes — J-Skip and J-Find — have opened alongside HSP for specific talent categories, though the 70-point HSP threshold, largely unchanged since the programme launched in 2012, remains the standard most applicants are actually measured against.
What the four systems have in common, and where they don't
Singapore and Japan both score candidates against a points table rather than a flat salary bar — but Singapore's COMPASS punishes an underpaid hire even after the minimum is technically met, while Japan's HSP rewards credentials regardless of what the job itself pays. Thailand and Vietnam both tie authorisation to a specific employer, but Vietnam at least built in a genuine short-stay exemption; Thailand didn't, and a job change there still means unwinding one permit before another can exist.
If there's one recommendation that holds across all four countries, it's this: never treat the visa timeline as parallel to the job start date. Budget six to eight weeks minimum for Singapore's COMPASS assessment, plan around Thailand's employer-locked permit before accepting a competing offer, file Vietnam's exemption certificate a full month ahead rather than the bare-minimum ten working days some agents quote, and for Japan, calculate your HSP point total before signing anything — a role that looks identical on paper can land at 65 points or 75 depending on how the employer structures the job title alone. The paperwork rewards people who ask their future employer for the visa category and salary structure in writing before they resign from their current job, not after.