If the federal tax lien has not been released within 30 days of satisfying your tax liability, you can request a. Certificate of Release of Federal Tax Lien.Write your social security number (nnn-nn-nnnn), the tax year (2017), and the form number (5329) on your payment. Notice. CP21I. A federal tax lien is the government's legal claim against your property when you neglect or fail to pay a tax debt. Verify the due date for payment as stated in the payoff letter has not passed. Verify the payment type (e.g. The SAVE plan is an incomedriven repayment (IDR) plan that calculates payments based on a borrower's income and family size not their loan balance. If a legal claim is made against your property in order to satisfy a tax debt, the IRS will file a Notice of Federal Tax Lien. The good news is that there are steps you can take to make it easier and more affordable to pay off your loans. Looking for homeowner assistance?