Assuming the companies have dividends to pay then it would be more than likely they would be fully franked
But the dividends over $25,000 are still going to effectively be taxed at 31.5 cents in the dollar or even higher was the grossed up amount exceeds $75,000 compared to 23.25% or less regardless of the amount made if shares are held in your own name and you can access the 50% discount.
The tax liability can also be shared around through a company by issuing shares to other family members but then you may have dividend streaming issues to contend with.
As for share buy backs, these are not a very simple process.
Companies can be a great vehicle to use IN THE RIGHT SITUATION but there are a number of other structures that may work even better
and using the wrong structure may end up costing a great deal more at some time in the future.
Get professional advice on the best structure to suit you and what you intend to do. The cost of this is absolutely nothing comparted to what the wrong structure may cost you
