Greetings!
*Certified Quickbooks Pro-Adviser*
I am a Qualified Chartered Accountant with 10 years of Experiance in Accounting, Bookkeeping and Taxation.
I have done multiple QB Assignments including migration, below are answers to your questions
1) how long is migration process; - Ideally it should not take more than two weeks
2) worked on Tally to QBO migration before?,- Yes Multiple Time
3) Any disruption to BAU activities?- We can use both systems parallel until your accountant is familiar with QB, it will avoid disruption to BAU
4) Any other additional fees?, - My price is inclusive, i will take care of migration of chart of accounts, but i will not teach QB to your accountant.
5) Any fixing/ follow ups after migration post management review?- Yes i can help you after project if anything is related to Migration.
Please PM me to discuss further
Thanks
Akshay