If the 1099-INT is from a joint account it should have both names on it, but it will only have one Social Security number. If it's an individual account the 1099-INT will only have one name. You might want to call the financial institution that issued the 1099-INT and verify the ownership of the account.
If you are filing a joint tax return you include all income for either one of you individually and all income from joint accounts.
Probably if bot names are on the account. From a tax standpoint, it doesn't matter unless that other person is not filing a joint return with you and yo want to split the income.
If the 1099-INT is from a joint account it should have both names on it, but it will only have one Social Security number. If it's an individual account the 1099-INT will only have one name. You might want to call the financial institution that issued the 1099-INT and verify the ownership of the account.
If you are filing a joint tax return you include all income for either one of you individually and all income from joint accounts.
It may, it is based on how your account was setup.