Pl download attached file: How to Use GST Tax Type for Within State (Intra State) and Out of State - (Inter-State) Working

If you see that tax code or tax calculation is wrong, please check following:

1. The tax code window is opening and tax is not being accepted. - Please run the Update GST Tax Master from System->GST Updates menu. If your version is 16.2.12/16.2.13/16.2.14, you should update your version. Please see how to download the patch for the same. Still, if you want to rectify the problem in the old version, please modify tax master and remove the tick from Inactive option. You may have to do it again if required.

2. Wrong tax or only SGST is being printed, CGST is zero in the invoice: Please check that instead of SG or PG codes in the invoice, IG or CG codes are being applied in the invoice. The reason is that the party station (state code) is different than the company state code. You can rectify your state code by modifying company master at starting of the software and defining a correct state for yourself. For party-state code, go to System->Master Data->Station Master and check each station for the correct state. Rectify where it is wrong or blank state code. When the company state code is different than the party-state code, it automatically applies interstate tax code. 

3. Wrong Calculation of tax: There is a flag for composition retailers in Cross->System Constants. Please check the same if it is a tick, remove the same.

4. All taxes are zero in sales invoice: Please check if you had selected composition option while running System->GST Updates->GST Tax Master. You can run this option again with the correct choice.

5. Interstate Tax code is not coming: Please check if you had selected interstate option while running System->GST Updates->GST Tax Master. You can run this option again with the correct choice.

6. Interstate Tax code is there in tax master but not getting applied in sales invoice: In SG or PG Tax codes, interstate tax code must be defined. If you have a version older than 16.2.17, you can modify tax master and specify interstate tax code in it. e.g. define interstate tax code IG2 in SG2 tax code. Still, if you do not see interstate tax code, the reason is that party station (state code) is not different than company state code. You can rectify your state code by modifying company master at starting of the software and defining a correct state for yourself. For party-state code, go to System->Master Data->Station Master and check each station for the correct state. Rectify where it is wrong to state code. When the company state code is different than the party-state code, it automatically applies interstate tax code. To print interstate tax invoice, you may need to change the invoice format in the print window.

You may download and check the attached PDF file for help.