Accounting Services in Mongolia
Practical accounting support for foreign-invested companies, group entities and management teams operating in Mongolia.
Read more →Mongolia tax, accounting and advisory support
Founder-led tax, accounting and advisory support for foreign-invested and group companies in Mongolia.
PATC Ledger provides practical senior-level support for accounting, tax compliance, tax due diligence, withholding tax, double taxation treaty, transfer pricing, related-party loan review, reporting readiness and documentation matters in Mongolia.
US CPA Exam Passed
Mongolian CPA
CPTA
28+ years' experience
Founder-led advisory support
Senior support led by Nyamdulam Nyamjav.
PATC Ledger is led by Nyamdulam Nyamjav, founder and senior tax, accounting and advisory professional based in Ulaanbaatar. The practice supports foreign-invested companies, group entities and project companies that need practical Mongolian tax, accounting, reporting and documentation support.
For clients, the value is direct senior-level involvement, clear English communication with management teams, and careful attention to Mongolian filing risk, documentation, deadlines and evidence.
Senior-level review
Support is designed for management teams that need more than routine filing, including issue identification, documentation review and practical next steps.
Foreign-invested company focus
Experience includes group companies, project entities, cross-border payments, related-party transactions and management reporting requirements.
Risk-aware communication
Advice and support are framed to separate confirmed facts, assumptions, management decisions, filing risks and required evidence.
Services
Focused support for companies with Mongolian accounting, tax and documentation needs.
Each service page is designed to explain who the service is for, what issues it addresses and how PATC Ledger can support management teams.
Tax Compliance Services in Mongolia
Tax compliance support for companies that need reliable filing, documentation and communication with local tax requirements.
Read more →Withholding Tax and DTT Support in Mongolia
Support for withholding tax, double taxation treaty matters and cross-border payment documentation.
Read more →Transfer Pricing Documentation in Mongolia
Transfer pricing documentation support for related-party transactions, local files, master files and practical risk review.
Read more →Related-Party Loan Review in Mongolia
Review support for related-party loans, interest, thin capitalization considerations and tax documentation.
Read more →Opening Balance Review and Accounting Handover Support
Support for opening balance review, accounting transition, handover review and reporting readiness.
Read more →Tax Due Diligence and Tax Risk Diagnostic in Mongolia
Tax due diligence and tax risk diagnostic support for acquisitions, investment review, management review, accounting transition and group risk assessment.
Read more →Who we help
Built for foreign-invested, group and project-based companies.
Foreign-invested companies entering Mongolia
Support for companies that need local tax, accounting and documentation assistance from a senior professional who can communicate clearly with international management teams.
Mining, energy and infrastructure groups
Practical support for group entities with cross-border payments, related-party transactions, tax due diligence, loans, documentation and reporting readiness needs.
International NGOs and project offices
Accounting, tax and reporting support for organizations that need clear schedules, compliance support and documentation for management or donor review.
Companies changing accountants
Opening balance review, accounting handover support and issue identification before future filings and reporting cycles are affected.
Selected experience
Practical experience with complex group, tax and reporting matters.
Foreign-invested group support
Supported accounting transition, opening balance review, withholding tax review, transfer pricing documentation and reporting readiness support across multiple Mongolian entities.
Cross-border tax matters
Assisted with withholding tax, double taxation treaty documentation, related-party loan review and practical tax risk identification.
Documentation and management support
Prepared reconciliations, supporting schedules, proposed accounting adjustments and explanations for audit readiness and management review purposes.
How we work
Clear scope, fee and responsibilities before work begins.
PATC Ledger uses a structured onboarding process so that the requested support, documents, timing and professional fee are understood before detailed work starts.
Step 1
Initial inquiry
Share the company name, service required, relevant period, deadline and a short description of the issue. We normally aim to respond within one business day.
Step 2
Preliminary review
We review the initial facts, urgency, documentation condition and whether the matter fits PATC Ledger's service area.
Step 3
Scope and fee proposal
We provide a proposed scope and professional fee based on complexity, entity count, period, urgency and tax or accounting risk.
Step 4
Engagement confirmation
Work begins after the scope, fee, required documents, responsibilities and timing are confirmed.
Step 5
Work and communication
We carry out the agreed work with practical communication, documentation-focused review and appropriate follow-up.
Fee basis
Fixed, hourly or project fee
Depending on the engagement, fees may be quoted on a fixed-fee, hourly or separately agreed project-fee basis. Historical review, tax risk assessment, resubmission work, transfer pricing review and due diligence may require a separate fee proposal.
No fixed price list is published.
Professional fees are quoted after the initial facts and scope are understood. Additional work outside the agreed scope may require separate written approval.
Insights
Practical updates for companies operating in Mongolia.
Short, practical notes on Mongolian tax, accounting and regulatory matters relevant to foreign-invested companies, group entities and project companies.
Mongolia CIT Law amendments effective from 2027: what companies should review
A practical overview of 2026 amendments to Mongolia's Corporate Income Tax Law, including rate brackets, SME relief threshold, selected IT incentives and deadline changes effective from 1 January 2027.
Read insight →Need help assessing the impact?
PATC Ledger can help review how tax law changes may affect Mongolian entities, reporting deadlines, documentation and management decisions.
Request a confidential discussion →Contact
Request a confidential introductory discussion.
For accounting, tax compliance, transfer pricing, withholding tax, tax due diligence, related-party loan review, opening balance review or reporting readiness support in Mongolia, contact PATC Ledger.
Contact PATC Ledger
For confidential inquiries, please contact PATC Ledger by email. WhatsApp is also available for brief initial contact. Please include the company name, service required and a short background.
Email:
nyamdulamn@patc.mn
Phone / WhatsApp / Viber:
+976 8603 3998