As more companies hire employees from Indonesia, friction and early turnover caused by insufficient understanding of religious practices have become practical challenges. Indonesia has the world’s largest Muslim population, and consideration for religion—from pre-hire through post-joining workplace management—is not a “nice to have,” but basic knowledge without which operations can stall. This article organizes, from a practical standpoint, the religious makeup of Indonesia that HR professionals and executives should grasp first, and the concrete workplace responses that are required.

Indonesia’s Religious Makeup: A Muslim Majority Within Diversity

Indonesia is the world’s fourth most populous country, with roughly 270 million people (2024 estimate), and is also known for having the world’s largest Muslim population. About 87–88% of the population practices Islam (predominantly Sunni), with the remainder including Protestants (about 7%), Catholics (about 3%), Hindus (about 1.7%, centered on Bali), and Buddhists (about 0.7%).

What matters in practice is that this religious distribution varies greatly by region. People from Bali are likely to be Hindu, while those from East Nusa Tenggara (NTT) or northern Sulawesi are often Christian. Many Indonesians who come to Japan under Technical Intern Training or Specified Skilled Worker programs are from regions with large Muslim populations such as Java and Sumatra, but the fundamental rule is not to assume “Indonesian = Muslim” uniformly; confirm individually at the interview and onboarding preparation stages.

Note that Indonesia’s constitution places “belief in the One and Only God” first among the Pancasila (the five founding principles), and it is socially assumed that citizens hold some religion. Because declaring no religion is culturally difficult in daily life, when asking about religion it is advisable to clearly state that the purpose is information gathering to prepare the workplace environment, with no intent to coerce or discriminate.

Those who wish to review the basics of international talent systems and hiring may also refer to our article on the fundamentals of hiring foreign workers.

Common Questions from the Field

Among inquiries from HR professionals at companies that have hired Indonesian talent in manufacturing, food processing, nursing care, construction, and similar fields, the following patterns are especially common.

“We don’t know how to allow breaks for prayer.”

In Islam, five daily prayers (salat) are obligatory, and prayer times vary by day—before sunrise, midday, afternoon, sunset, and night. Many report that production lines and nursing care shifts have “no rules, so frontline leaders are stuck.” Each prayer typically takes about 5–15 minutes, and some employees may also need access to water for the pre-prayer ablution (wudu).

“Employees fall ill during Ramadan, making shift management difficult.”

Muslims who observe the fast (sawm) abstain from all food and drink from sunrise to sunset. Ramadan that falls in summer is especially demanding, and health management becomes a key management issue for outdoor work or high-temperature environments. Cases have been reported across regions where continuing normal operations without advance shift adjustments or revised break timing led to illness or resignation.

“What should we watch for on menus at meals and year-end parties?”

Accommodating the rule that only halal (permitted under Islamic law) food may be eaten is often a first hurdle for Japanese companies. Care regarding pork and alcohol-containing dishes is essential, and companies that provide boxed lunches or have employee cafeterias are frequently asked to review menus.

“They said they want to work while wearing a hijab (scarf).”

In factories and medical or nursing care settings, decisions on whether hijab may be worn must balance hygiene and safety rules. Many say “we have no internal policy, so we don’t know how to answer,” and policy development often lags.

As an example of workplace communication with international talent from other countries, please also see our article on workplace communication with Myanmar talent.

Failure Patterns and How to Avoid Them

Drawing on cases that led to on-site trouble or early turnover, we outline typical failure patterns and how to avoid them.

Failure pattern 1: Explaining dietary restrictions for the first time after joining

Some companies wait until the interview, after offer acceptance, or even the first day of work to say “the cafeteria has no halal options” or “the boxed lunch contains pork.” Muslim employees feel strong stress from the start, and trust is damaged.

As a countermeasure, explain the meal environment honestly early in the hiring process (at interview or when communicating the offer) and clarify the boundary of “what we can accommodate now versus what remains the employee’s responsibility.” Even when full halal accommodation is difficult, confirm in advance whether you can at least offer options free of pork and alcohol.

Failure pattern 2: Overlapping peak season with Ramadan without tracking the dates

Ramadan is set by the Islamic (Hijri) calendar and advances about 11 days earlier each year on the Gregorian calendar. In 2026, the fasting period is expected to run roughly from February 17 to around March 18 (subject to moon sighting). Eid al-Fitr (the festival marking the end of the fast) during Ramadan is customarily observed in Indonesia with one to two weeks of extended leave, and the desire to return home also strengthens. Not a few companies have seen sudden absences and resignations concentrate in this period.

As a countermeasure, build major Islamic calendar observances into the annual hiring plan and communicate paid-leave and shift-adjustment policies around Ramadan to employees in advance. Stating home-leave rules in work rules or the notice of working conditions helps prevent “he said / she said” disputes.

Failure pattern 3: Treating prayer space as a “personal issue” and leaving it unaddressed

Leaving the matter with “there is a break room, so use that” and no further consideration can lead employees to pray in restrooms or changing rooms, creating friction with others.

As a countermeasure, designate in advance a quiet space with a private room or partition (a size that fits one prayer mat is enough) and make the direction of Mecca (qibla) identifiable. Even using a corner of a meeting room by time slot can improve the situation substantially. If space is hard to secure, discuss with employees and align prayer timing with natural breaks in the work.

Failure pattern 4: A hands-off stance of “leave religion entirely to the individual”

From the misconception that “faith is personal, so the company should not get involved,” some companies neglect needed information and environment preparation. Well-intentioned laissez-faire can create the impression that “the company does not accommodate us” and worsen retention.

As a countermeasure, position religious accommodation not as “special treatment” but as workplace environment preparation so diverse employees can perform. It is effective to state a religious accommodation policy in work rules or onboarding manuals and to deliver minimum literacy training for managers.

Points Hiring Managers Often Overlook

Here are five points often overlooked in Japanese HR practice regarding religious accommodation for Indonesian talent.

1. Avoiding confirmation of religion by confusing it with “discrimination”

Confirming religious practices is reasonable information gathering to prepare the workplace environment; it is not discrimination. In fact, asking nothing and then reacting late carries higher operational risk. Confirming dietary restrictions, prayer needs, and holiday preferences stays within a reasonable scope. However, using religion as a hiring criterion can raise issues under the Act on the Comprehensive Promotion of Labor Policies and equal treatment principles, so clearly separate and manage how collected information is used.

2. No hijab rules in the work regulations

Work rules that ban hijab uniformly without a reasonable basis can later become a source of disputes. On sites with hygiene-cap duties under the Food Sanitation Act or hard-hat requirements, a case-by-case decision is needed on whether hijab may be worn underneath. Where there are safety or hygiene reasons, it is preferable to respond by offering alternatives (such as combining with a hygiene cap).

3. Treating Eid al-Fitr (Hari Raya) as just another “holiday”

Eid al-Fitr after Ramadan (Hari Raya Idul Fitri in Indonesian) is a paramount occasion that places even greater weight on family reunion and prayer than Japanese New Year. Accumulated experiences of “I could not take paid leave” or “I could not go home” directly affect retention. Under systems such as Specified Skilled Worker and Technical Intern Training, home-return rules may be constrained, but advance coordination so responses can be planned as far as possible is essential.

For status of residence for Specified Skilled Worker and highly skilled foreign professionals, also see our explanation of status of residence for highly skilled foreign professionals.

4. Lack of care for foods where alcohol is “hidden”

Mirin, cooking sake, some soy sauces, fermented foods, vinegar, and other Japanese seasonings and processed foods often contain alcohol. Strict Muslims may avoid these as well, so coordination with cafeterias or boxed-lunch vendors may be needed. When uniform accommodation for everyone is difficult, it is important to talk with the individual and confirm “how far we can go” and “how strictly they practice.”

5. Not grasping the importance of Friday congregational prayer (Jumu’ah)

In Islam, “Jumu’ah” (congregational prayer) around midday every Friday is obligatory and takes longer than ordinary prayer (about 30–60 minutes). Factory lunch-break settings and Friday work sequencing may need accommodation. When Japanese working hours overlap with Jumu’ah, deciding flexible policies in advance—adjusting breaks, short step-outs, or make-up time—prevents on-site confusion.

Ramadan and Religious Observances: How to Build Them into the Workplace Calendar

The following are key Islamic observances in Indonesia to reference when building them into the workplace calendar.

Ramadan (the fasting month) corresponds to the ninth month of the Islamic calendar and advances about 11 days earlier each year on the Gregorian calendar. Physical strain is high during the fast, and combinations with heavy labor, high-temperature work, or night shifts require particular care. While work efficiency often declines during Ramadan, it is also useful to know that many employees work with a strong sense of duty and self-discipline.

Eid al-Fitr (the festival marking the end of the fast) is an official holiday for one to three days immediately after Ramadan, but in Indonesia it often becomes a continuous break of up to two weeks including the days around it. Indonesians living in Japan, even when returning home is difficult, tend to value gatherings with fellow-country communities at this time, so it should be built into the annual plan as a period when paid leave concentrates.

Eid al-Adha (the Festival of Sacrifice) falls on the 10th day of the 12th Islamic month and involves slaughtering sheep or cattle and sharing them at mosques and in local communities. Even while living in Japan, some strongly wish to attend mosque prayer. Other important observances include the Prophet Muhammad’s birthday (Mawlid an-Nabi) and the Islamic New Year (1 Muharram).

Registering these observances in HR systems and internal calendars and anticipating when paid-leave requests will concentrate is a practical first step toward better retention. Also review information on employment of foreign nationals published by the Ministry of Health, Labour and Welfare, and we recommend documenting internal policy on multicultural workplace environments that include religious accommodation (Employment of Foreign Nationals | Ministry of Health, Labour and Welfare). For notifications and procedures related to status of residence, always refer to official information from the Immigration Services Agency of Japan.

Diagram: Religious Accommodation Check Flow Before Hiring and After Joining

Below is a phase-by-phase religious accommodation check flow from hiring Indonesian talent through retention support. It can be copied into your internal onboarding manual.

Selection phase

  • Before selection begins, list the range of accommodations your company can provide—meal environment, prayer space, whether hijab may be worn, and so on
  • At interview, confirm preferences related to religious practice (dietary restrictions, prayer timing, Jumu’ah, etc.) and match them against what your company can accommodate
  • State that confirmation is “to prepare the workplace environment,” and record and manage it separately from hiring decisions

Offer and pre-joining preparation phase

  • State religious accommodation policy (treatment of prayer breaks and scope of meal support) in the notice of working conditions, or supplement it in an attachment
  • Prepare an annual calendar including Ramadan and major Islamic observances and share recommended periods for taking paid leave
  • Prepare a prayer space (or alternative location) and qibla direction, and brief the employee before joining

Joining and onboarding phase

  • Explain the halal status of cafeteria, boxed-lunch, and on-site retail foods and clearly show available options
  • Communicate prayer-break request rules (when, to whom, and how to request) to frontline leaders and the employee
  • Agree Friday Jumu’ah policy with site managers, then explain it to employees as well

Retention support phase

  • Plan shift adjustments, avoidance of heavy labor, and attention to hydration in advance for the Ramadan period
  • Encourage early paid-leave requests around Eid al-Fitr and finalize them in a planned way
  • Build a system to surface concerns about religious accommodation early through regular one-on-ones and interviews

Practical Checklist

Items HR professionals at companies hiring and accepting Indonesian talent should confirm before the employee joins.

Hiring and contract preparation

  • Confirmed and documented the scope of response to dietary restrictions (halal; no pork or alcohol)
  • Secured a prayer space or alternative location and can guide employees to it
  • Established internal rules (or a flexible policy) on hijab in work regulations or a supplementary document
  • Reflected religious observances (Ramadan, Eid al-Fitr, etc.) in the annual shift plan
  • Stated or supplemented religious accommodation policy in the notice of working conditions

Site and management preparation

  • Explained basic Islamic practices (prayer, fasting, dietary restrictions) to site managers
  • Decided Friday Jumu’ah policy (break-time adjustment, make-up time, etc.)
  • Communicated the prayer-break request and approval flow to the site
  • Confirmed whether the company cafeteria and bento vendors offer halal options and prepared alternatives
  • Established a rule to include Muslim-friendly meal options on menus for internal events (social gatherings, year-end parties, etc.)

Retention and follow-up

  • Conducted interviews and checks regarding religious accommodations within three months of joining
  • Discussed health management and shift adjustments with the individual before the Ramadan period
  • Finalized paid leave plans around Eid al-Fitr at an early stage
  • Secured interpreting and translation resources in case Japanese-language support proves difficult

Companies that wish to discuss hiring and retention support for Indonesian talent on an individual basis are encouraged to contact us via the Foreign Talent Insights inquiry page.

Frequently Asked Questions (FAQ)

Q1. Are all Indonesians Muslim?

No. Approximately 87–88% of the population is Muslim, but there are regions with higher proportions of Hindus among those from Bali, and of Christians among those from East Nusa Tenggara and northern Sulawesi. It is important to carefully confirm place of origin and individual beliefs at the time of hiring.

Q2. If you cannot prepare halal meals, should you give up on hiring?

Not necessarily. A realistic approach is to first honestly communicate what your company can and cannot do, then match that against the individual’s preferences. In many cases, simply securing options that avoid pork and alcohol is sufficient for Muslim employees. Even without fully certified halal meals, demonstrating a willingness to accommodate has a major impact on retention rates.

Q3. Must you provide a dedicated room as a prayer space?

There is no legal obligation, but accommodation is recommended from the standpoint of reasonable consideration. Even without a dedicated room, you can adequately respond by using a corner of a meeting room or break room on a timed basis. A space large enough for one prayer mat and an indication of the qibla (direction of Mecca) provide a minimum environment.

Q4. How should overtime and night shifts be handled during Ramadan?

Because fasting places a heavy physical burden, it is preferable to avoid late-night and early-morning shifts as well as high-intensity work during Ramadan as much as possible. Confirming intentions regarding shift adjustments in advance and respecting the individual’s wishes helps prevent turnover. Mandatory overtime orders can cause significant mental strain and also carry labor-management risks.

Q5. How should you handle the combination of wearing a hijab with safety helmets or hygiene caps?

When there are safety or hygiene reasons, the common approach is to have the person wear a safety helmet or hygiene cap over the hijab. Products with materials and shapes that allow both are also commercially available. If you impose a blanket ban, presenting a reasonable rationale and alternative measures is essential, and you need to prepare work rules and brief managers in advance.

Q6. What status of residence is required when hiring Indonesian talent?

It depends on the occupation, employment type, and the individual’s background. Multiple statuses of residence may apply, including Specified Skilled Worker, Engineer/Specialist in Humanities/International Services, and nursing care. For details, refer to official information from the Immigration Services Agency of Japan and we recommend consulting a specialist.

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In accepting Indonesian talent, understanding of religion is not an “optional accommodation” but a “foundation for on-site operations.” Designing the hiring process based on accurate knowledge and carefully preparing the post-joining environment leads to long-term retention and improved productivity across the workplace. For concrete acceptance support or individual consultations, please feel free to contact Foreign Talent Insights.

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