Indonesia Tax Filing Deadlines 2027: Complete Compliance Calendar for PT PMA and Foreign Companies

A finance director building her company’s 2027 compliance calendar plugged in the standard rule, THR due seven days before Idul Fitri, and asked her team for the exact date. Nobody could give her one with certainty. Indonesia’s Ministry of Religious Affairs will not officially confirm 2027’s Idul Fitri date until a moon sighting session held weeks before Ramadan actually begins, which means any calendar claiming a fixed THR date for 2027 right now is presenting an astronomical estimate as if it were an official fact. Most generic compliance calendars quietly skip over that distinction. This one will not.

That gap, between what can be fixed on a 2027 calendar with genuine confidence and what still depends on a process that has not concluded, is worth understanding before building next year’s compliance plan around assumptions that feel more certain than they actually are.

What You Can Actually Fix on the Calendar Right Now

Most of Indonesia’s tax and compliance obligations run on statutory rules tied to fixed calendar points rather than lunar observation, which means they can be planned for 2027 with real confidence.

• Annual Corporate Income Tax Return (SPT Tahunan Badan): due four months after fiscal year end, which for a company with a 31 December 2026 year end lands on 30 April 2027, the standard rule covered in XPND’s corporate income tax guide for PT PMA.
• Monthly withholding tax returns, including PPh 21, PPh 23, PPh 26, and Final Income Tax under Article 4(2), generally due by the 10th or 15th of the month following the transaction, a distinction covered in XPND’s dividend withholding tax guide for foreign shareholders.
• Monthly VAT returns, due by the end of the month following the taxable period, covered in full in XPND’s VAT guide for foreign companies.
• Quarterly LKPM investment activity reports, mandatory for every PT PMA without exception regardless of operational stage
• Annual WLKP workforce reporting, due within 30 days of the anniversary of commencing operations, covered in XPND’s WLKP reporting guide.
• Annual beneficial ownership reconfirmation through AHU Online, required even where no ownership change has occurred during the year, covered in XPND’s beneficial ownership reporting guide.

None of these dates depend on anything Indonesia has not already legislated. They can go on a 2027 calendar today without caveat.

The One Date Nobody Can Confirm Yet

THR, the mandatory pre-holiday allowance due no later than seven days before Idul Fitri, is the clearest exception to that certainty. Based on current astronomical calculation, Idul Fitri 1448H is estimated to fall around 9 or 10 March 2027, but that estimate comes from lunar calendar projections rather than Indonesia’s actual determination process. The Ministry of Religious Affairs confirms the official date only through a Sidang Isbat session held close to the start of Ramadan itself, based on a combination of astronomical calculation and direct moon sighting, and that session will not happen until early 2027. A company budgeting THR disbursement around the current estimate should build in a buffer rather than treating early March as fixed, since the eventual official date could shift by a day or two once the government’s own process concludes.

2027 Deadlines That Trace Back to 2026 Regulatory Changes

Several obligations landing on the 2027 calendar are not new rules themselves, but the practical consequence of changes that took effect during 2026.

Companies that have not yet reviewed their tax representative arrangement against Minister of Finance Regulation No. 44 of 2026 face a transition deadline of 31 December 2026, meaning any company still working through this review needs to close it out before 2027 begins rather than treating it as a 2027 task. XPND’s guide to PMK 44/2026 and Indonesia’s tax representative framework covers what qualifies under the new classification system.

For multinational groups in scope of Indonesia’s Global Minimum Tax framework, the annual registration and DMTT return cycle under Director General of Taxes Regulation No. PER-6/PJ/2026 continues to run on its nine month post fiscal year end registration deadline, which for a group with a 31 December 2026 fiscal year end lands in September 2027. XPND’s guide to PER-6/PJ/2026 and Indonesia’s Global Minimum Tax framework covers the full filing architecture behind that date.

Transfer pricing documentation follows the same four month rule as the annual corporate tax return, meaning the Master File and Local File Ikhtisar submitted through Lampiran 10D falls due alongside the April 2027 SPT deadline, with the underlying documentation itself needing to already exist and be ready for a DJP request under the one month response window set by Minister of Finance Regulation No. 15 of 2025. XPND’s guides to transfer pricing rules for foreign owned companies and PMK 15/2025 and Indonesia’s tax audit procedure cover both obligations in full.

Why Assuming 2026’s Relief Measures Will Repeat Is a Planning Mistake

The 2026 filing cycle saw two separate deadline relief decrees issued within roughly five weeks of each other, one extending the individual taxpayer window in March, a second formally extending the corporate SPT deadline from 30 April to 31 May in April, both issued reactively in response to Coretax transition congestion rather than announced in advance. A company building its 2027 calendar around the assumption that a similar grace period will materialize again is planning around a pattern that has no guarantee of repeating. The more defensible approach is building the 2027 calendar entirely around the standard statutory dates, and treating any relief measure DJP does or does not issue as a bonus rather than a planning assumption.

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A Practical 2027 Compliance Calendar

Bringing the fixed dates, the estimated date, and the inherited 2026 deadlines together, a grounded 2027 compliance calendar for a PT PMA looks like this.

• Ongoing monthly: PPh 21, PPh 23, PPh 26, Article 4(2) Final Income Tax, and VAT filings, each on their respective statutory deadlines within the month following the transaction period
• Quarterly: LKPM investment activity reporting to BKPM
• Around early March, pending official confirmation: THR disbursement, budgeted with a buffer around the current Idul Fitri estimate rather than a fixed date
• 30 April: Annual Corporate Income Tax Return, alongside the Lampiran 10D transfer pricing Ikhtisar submission for companies meeting the documentation threshold
• Annually, tied to incorporation anniversary: WLKP workforce reporting
• Annually: Beneficial ownership reconfirmation through AHU Online
• September, for December fiscal year end GloBE groups: Global Minimum Tax registration and DMTT return filing under PER-6/PJ/2026

None of these dates require waiting until closer to 2027 to plan around, with the single exception of the THR date, which genuinely cannot be fixed until Indonesia’s own process concludes.

XPND’s tax compliance team builds exactly this kind of calendar for PT PMA clients each year, distinguishing between the dates that can be locked in with confidence and the ones that require a buffer, so that a compliance plan is built on what is actually known rather than an estimate presented as settled fact. A calendar that gets every fixed date right and still assumes certainty where none exists yet is not actually a complete calendar. It is a confident guess wearing a complete one’s clothing.