Your lender will provide a closing statement that itemizes all the charges you'll have to pay at settlement. In most cases you receive it on the spot. Down payment balance is the amount you still owe the seller in cash.
Points are up-front interest charges paid to the lender.
The amount is either deducted from the mortgage loan, or you may write a separate check, which is preferable for tax purposes. Since points are fully deductible on an original purchase, you'll need to keep a record of the payment. Filing fee and other fees required for recording the transfer of ownership are paid to local authorities. Mortgage tax is paid to the state where the sale occurs. This amount is not tax deductible.