The IRS will mail the instruction booklet for form 1040 for free. Mail delivery can be requested from the IRS Forms and Publications by U.S. Mail website. Forms generally are received seven to 15 days after being ordered.
To order a 1040 instruction booklet on the Forms and Publications by U.S. Mail webpage, search for "1040" in the search box midway down the page. On the next page, check the appropriate box for the instructions booklet and then "Add to Cart." Once all forms and instructions have been added to the cart, clicking the "Checkout" button brings up an address form. Once the address form is filled out, click on the "Continue" button, which will open a confirmation page listing the address and items ordered. Click on the "Confirm" button to complete the order.