From your query it appears that the tenant is in doubt that you may or may not declare the rental income in your return of income since you are depositing the same in a joint bank account wherein your husband is the first account holder, by which the tenants tax benefit of the said amount may be affected in her case. However the fact is that once you declare the rent income in your return of income wherein you will have to quote the PAN of tenant it would make no difference as to in whose bank account the rent is deposited coupled with this the tenant can always rely on the registered rent agreement and the rent receipts issued by the land lord. So as per INCOME TAX ACT there is no specific requirement of opening a separate bank account .