If you're asking whether you need a lawyer to draft a contract, legally, the answer is no. Anyone can draft a contract on their own and as long as the elements above are included and both parties are legally competent and consent to the agreement, it is generally lawful.
The creditor should sign the Letter in the space provided before sending it to the debtor. If the debtor agrees to the repayment plan set out in the Letter Accepting Payments in Instalments, they should countersign the Letter in the space provided. This makes the Letter a binding agreement between the parties.
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.
While the IRS typically doesn't allow taxpayers to have two separate installment agreements, adding a new tax debt to an existing installment plan is possible. However, taxpayers must act swiftly before the IRS assesses the new tax balance and potential default occurs, triggering enforcement actions.