IRS letters we explain

• CP14Balance dueThe IRS says you owe unpaid taxes on this account.
• CP501Reminder of balance dueA reminder that you still owe a balance on one of your tax accounts.
• CP503Second reminder of balance dueThe second reminder that you still owe a balance on one of your tax accounts.
• CP504Notice of intent to levyThe IRS intends to levy (seize) property or rights to property to collect an unpaid balance.
• LT11 / Letter 1058Final notice of intent to levyThe IRS hasn't received payment for overdue taxes and intends to seize property or rights to property.
• CP2000Proposed changes to your tax returnIncome or payment information the IRS got from employers or banks doesn't match what you reported. This proposes changes; it isn't a bill.
• CP3219ANotice of deficiency (90-day letter)The IRS proposes to adjust your tax based on information from others like your employer or bank. You have 90 days to respond or petition the U.S. Tax Court.
• 5071CVerify your identityA return was filed under your SSN or ITIN, and the IRS needs you to verify your identity and the return before it can be processed.