The Directorate General of Taxes (DGT) implements the Coretax system to accelerate digital tax compliance supervision. This system issues SP2DK (Request for Explanation) as an initial clarification letter upon detecting tax data discrepancies. Taxpayers are required to respond to the letter cooperatively within a deadline of 14 calendar days. Ignoring the SP2DK will compel the authorities to escalate the case status to a tax audit or criminal investigation stage. Therefore, taxpayers must manage their documents electronically to effectively mitigate the risk of penalties. .

Navigating Tax Compliance: Understanding SP2DK and Audit Processes in the Coretax Era

Under Indonesia's self-assessment system, the Directorate General of Taxes (DGT) has significantly modernized its oversight through the Core Tax Administration System (Coretax). This technology renders tax supervision faster, more integrated, and transparent. For Taxpayers, distinguishing between a "request for clarification" and an "official audit" is vital to mitigating heavy administrative penalties.

1. Legal Framework & Digital Transformation

Tax supervision and audits are now governed by the KUP Law (as amended by Law No. 6/2023) and specific new regulations:

PMK No. 111/2025: Digital procedures for SP2DK and compliance monitoring.
PMK No. 15/2025: Integrated tax audit procedures within the Coretax system.
PER-18/PJ/2025: Specific follow-up protocols for "concrete data" findings.

2. SP2DK: The Data-Driven "Yellow Light" (PMK 111/2025)

An SP2DK (Request for Explanation on Data and/or Information) is issued when Coretax’s Early Warning System detects discrepancies between your filings and third-party data.

Omnichannel Delivery: Notifications are automatically sent to your Taxpayer Portal, email, or via post.
The 14-Day Clock: You must respond within 14 calendar days from the date the letter is sent to the Portal or received.
Response Mechanism: Explanations and PDF supporting documents are uploaded directly through the Portal. The outcome is legally recorded in an Execution Minutes (BAP2DK).
The Risk of Silence: Failure to respond triggers the system to escalate the case to an Official Tax Audit or a Preliminary Evidence Investigation (criminal tax fraud).

3. New Tax Audit Structure

Per PMK 15/2025, audit types are now more streamlined to ensure time efficiency:

Audit Type	Scope of Examination	Maximum Duration
Comprehensive	All items in the Tax Return (SPT)	5 Months
Focused	Specific items in the SPT (in-depth)	3 Months
Specific	Specific items or concrete data (simple)	1 Month
Concrete Data	Obvious and clear data findings	10 Working Days

Document Rule: Requested documents must be submitted within 1 month. Late submissions will be disregarded and cannot be used as evidence during subsequent Objection or Appeal processes.

4. Risk Simulation: Concrete Data Scenario

Imagine Coretax detects an unreported input tax invoice:

Notification: DGT issues an SP2DK to your Taxpayer Portal.
Negligence: You ignore it for more than 14 days.
Escalation: The system escalates the case to a Specific Audit based on concrete data.
Rapid Audit: The auditor works within a very short window (e.g., 10 days). Because you failed to provide evidence during the supervision stage, the auditor may reject your late arguments.
Final Outcome: A Tax Underpayment Assessment Letter (SKPKB) is issued with penalties. Your bargaining position is weakened as the initial momentum for proof has been lost.

Conclusion & Mitigation Steps

In the Coretax era, speed, accuracy, and digital footprints are paramount. Receiving a letter from the DGT does not imply guilt, but a slow response will close your legal doors for clarification.

Key Tips for Taxpayers:

Regular Checks: Frequently monitor notifications in the Taxpayer Portal. The 14-day countdown starts when the letter is sent to the portal, not when you open it.
Be Cooperative: Always respond to SP2DKs on time, regardless of the discrepancy size.
Go Digital: Maintain electronic records so they are ready for instant upload.
Be Precise: Draft formal response letters with valid supporting evidence to resolve tax issues before they reach the audit stage.

Are you currently dealing with an SP2DK or an Audit Letter and need expert analysis to align with the latest tax regulations? Contact us here.

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Dapat SP2DK? Ga Perlu Panik!

A. Surat Pemberitahuan Perpanjangan Jangka Waktu Pengujian

B. Format Tanda Pengenal Pemeriksa Pajak

C. Surat Perintah Pemeriksaan

D. Surat Perintah Pemeriksaan Perubahan

E. Surat Tugas Dalam Rangka Membantu Pelaksanaan Pemeriksaan

F. Surat Pemberitahuan Pemeriksaan

G. Surat Penolakan Membantu Kelancaran Pemeriksaan

H. Berita Acara Penolakan Membantu Kelancaran Pemeriksaan

I. Panggilan Dalam Rangka Pertemuan

J. Berita Acara Hasil Pertemuan

K. Surat Permintaan Peminjaman Buku, Catatan, Dan/Atau Dokumen

L.Berita Acara Pemenuhan Kewajiban Atas Peminjaman Atau Permintaan Buku, Catatan, Dan/Atau Dokumen

M. Surat Peringatan

N. Bukti Peminjaman Dan/Atau Penyerahan

O. Tanda Terima Atas Pengembalian Buku, Catatan, Dan/Atau Dokumen

P. Tanda Segel Dalam Rangka Penyegelan

Q. Berita Acara Penyegelan

R. Berita Acara Pembukaan Segel

S. Berita Acara Mengenai Kerusakan Atau Kehilangan Tanda Segel

T. Surat Pernyataan Penolakan Pemeriksaan

U. Berita Acara Penolakan Pemeriksaan

V. Surat Terkait Panggilan Untuk Memberikan Keterangan

W. Berita Acara Mengenai Pemberian Data, Informasi, Keterangan, Dan/Atau Penjelasan Wajib Pajak

X. Surat Terkait Permintaan Keterangan Dan/Atau Bukti Kepada Pihak Ketiga

Y. Berita Acara Mengenai Pemberian Keterangan Pihak Ketiga

Z. Berita Acara Pembahasan Temuan Sementara

AA. Surat Pemberitahuan Hasil Pemeriksaan

BB. Contoh Format Tanggapan Tertulis Atas Surat Pemberitahuan Hasil Pemeriksaan

CC. Berita Acara Tidak Disampaikannya Tanggapan Tertulis Atas Surat Pemberitahuan Hasil Pemeriksaan

DD. Undangan Terkait Pembahasan Akhir Hasil Pemeriksaan

EE. Risalah Pembahasan

GG. Ikhtisar Hasil Pembahasan Akhir