Tax treatment of House sale proceeds

If the another house first name in spouse name and second in yours than yes he can invest CG of house u/s54. Or you can show it let out.

If both the houses are on the name of same person and he wants to sell one, will the CG benefits by invsting in  a new house be utilised?

Thanks in advance

One house will be self occupied and other will be deemed let out. Suppose this house is joint name with your wife or wife name is first and second owner name is yours. Than you can invest This with amount in buying new house.