v3.25.1
Cover - shares
9 Months Ended
Jun. 30, 2024
Aug. 29, 2024
Cover [Abstract]    
Document Type 10-Q/A  
Amendment Flag true  
Amendment Description The purpose of this amendment to Coretag, Inc. Quarterly Report on Form 10-Q/A for the period ended June 30, 2024 ("Form 10-Q/A"), initially filed with the Securities and Exchange Commission on May 29, 2024 is because our prior auditors GreenGrow CPAs resigned alleging that they did not review the original Form 10-Q for period ending June 30, 2024,  Therefore the Company had these financials reviewed again by their current auditors Boladale Lawal & Co.  
Document Quarterly Report true  
Document Transition Report false  
Document Period End Date Jun. 30, 2024  
Document Fiscal Period Focus Q3  
Document Fiscal Year Focus 2024  
Current Fiscal Year End Date --09-30  
Entity File Number 000-56293  
Entity Registrant Name CORETAG, INC.  
Entity Central Index Key 0001624140  
Entity Tax Identification Number 35-2515740  
Entity Incorporation, State or Country Code NV  
Entity Address, Address Line One 7325 Oswego Road  
Entity Address, City or Town Liverpool  
Entity Address, State or Province NY  
Entity Address, Postal Zip Code 13090  
City Area Code (315)  
Local Phone Number 451-7515  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company false  
Entity Shell Company true  
Entity Common Stock, Shares Outstanding   93,300