Hi Puspa,
According to your inform for example personal income tax. I will sent the report to you as below.
1. Upload 50 Tawi PND91 Report to DM within 25 January 2016
2. Sent 50 Tawi PND91 filing form to TH office within 27 January 2016
Are you ok for my plan?
And for PND91 Form , You can download form as link below.
http://www.rd.go.th/publish/fileadmin/tax_pdf/pit/PIT91_2558_281258_k.pdf
I’m so sorry for reply late.