You can send Form 9465 with the e-return, but the IRS must still approve the installment agreement form.
Examples of installment buying would be a home, a car, or other large purchases that require financing, such as a laptop. It allows the purchaser to buy without paying the entire amount upfront.
Tax Deferral (for the seller): One of the most compelling reasons to consider an installment sale is the ability to defer capital gains tax.
An instalment sale agreement between you and a credit provider allows you to buy a vehicle or asset using the principal debt, which you repay by means of regular instalments over an agreed period, with fees and interest.
If the IRS approves an installment agreement, it will generally keep any tax refunds and apply them to your debt. If the IRS agrees to an installment agreement, it may still file a Notice of Federal Tax Lien. For more information, see Publication 594, The IRS Collection Process.