v3.26.1
Cover
 12 Months Ended
Mar. 31, 2026
shares
Entity Addresses [Line Items]  
Document Type 20-F
Amendment Flag false
Document Registration Statement false
Document Annual Report true
Document Transition Report false
Document Shell Company Report false
Document Period End Date Mar. 31, 2026
Document Fiscal Period Focus FY
Document Fiscal Year Focus 2026
Current Fiscal Year End Date --03-31
Entity File Number 001-42696
Entity Registrant Name Vantage Corp
Entity Central Index Key 0002027160
Entity Incorporation, State or Country Code E9
Entity Address, Address Line One #07-07, Level 7
Entity Address, Address Line Two 51 Cuppage Road
Entity Address, City or Town Singapore
Entity Address, Country SG
Entity Address, Postal Zip Code 229469
Title of 12(b) Security Class A Ordinary Shares, par value US$0.001 per share
Trading Symbol VNTG
Security Exchange Name NYSEAMER
Entity Well-known Seasoned Issuer No
Entity Voluntary Filers No
Entity Current Reporting Status Yes
Entity Interactive Data Current Yes
Entity Filer Category Non-accelerated Filer
Entity Emerging Growth Company true
Elected Not To Use the Extended Transition Period false
Document Accounting Standard U.S. GAAP
Entity Shell Company false
Entity Common Stock, Shares Outstanding 30,983,121
ICFR Auditor Attestation Flag false
Document Financial Statement Error Correction [Flag] false
Auditor Firm ID 3487
Auditor Opinion [Text Block] We have audited the accompanying consolidated balance sheets of Vantage Corp and its subsidiaries (the “Company”) as of March 31, 2026 and 2025, and the related consolidated statements of operations and comprehensive income (loss), changes in shareholders’ equity, and cash flows for each of the three years ended March 31, 2026, and the related notes (collectively referred to as the “consolidated financial statements”). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of Vantage Corp as of March 31, 2026 and 2025, and the results of its operations and its cash flows for each of the three years ended March 31, 2026, in conformity with accounting principles generally accepted in the United States of America.
Auditor Name Audit Alliance LLP
Auditor Location Singapore
Business Contact [Member]  
Entity Addresses [Line Items]  
Entity Address, Address Line One #07-07, Level 7
Entity Address, Address Line Two 51 Cuppage Road
Entity Address, City or Town Singapore
Entity Address, Country SG
Entity Address, Postal Zip Code 229469
City Area Code +65
Local Phone Number 6737 2221
Contact Personnel Name Andresian D’Rozario