Generally, the IRS decides to send you a letter through certified mail through pre-defined policies and procedures. The IRS includes these policies and procedures in its Internal Revenue Manual (a guide that IRS employees should follow assuming they know their own rules). Mostly, an IRS computer automatically sends IRS letters including certified mail. Sometimes, if the IRS assigned an IRS employee to work on your case, this IRS employee may manually send you a letter through certified mail. For example, when the IRS audits you, the IRS assigns an Auditor to review your tax records. This Auditor may manually send you important letters through certified mail such as the Income Tax Examination Changes letter (a letter that usually claims you owe the IRS more taxes). Further, if you owe the IRS money, the IRS may assign a Revenue Officer (a human being who looks to collect from you and ensure you comply with tax laws) to work on your case. This Revenue Officer may manually send you important letters through certified mail such as the [color=var(--ast-global-color-0)]Final Notice, [color=var(--ast-global-color-0)]Notice of Intent to Levy and [color=var(--ast-global-color-0)]Notice of Your Right to a Hearing letter.
会不会是要查税的啊？我每年都搬家，交税的资料早就没有了……
坐标纽约，有没有同样是纽约的收到过必须签字的税务局文件啊？
大概律是税务局对你2021年的税有一个问题，税务局会告诉你是什么问题。
如果是认为你少交了，如果你不愿去折腾，补交就是了。
税务记录一般要保持5年。
我去年就炒股了……没有其他收入啊……
那很有可能是你漏了一个或者几个transaction(s)。
IRS通常会list每一个，然后告诉你IRS认为你少交了多少。
如果钱不多的话，就照它说的做，否者把炒股记录找出来。
也许是其他的事情 我去年也收了好几个IRS的信
都是他们正在处理我的税单 delay什么的
也是必须签字才能收的信吗？
没有需要签收的那种 好像就是普通的信件
我这个是必须签字才能收的，估计不是啥简单的东西
https://www.taxfortress.com/irs-certified-letter/
WHY DID THE IRS DECIDE TO SEND CERTIFIED LETTER?
Generally, the IRS decides to send you a letter through certified mail through pre-defined policies and procedures. The IRS includes these policies and procedures in its Internal Revenue Manual (a guide that IRS employees should follow assuming they know their own rules). Mostly, an IRS computer automatically sends IRS letters including certified mail. Sometimes, if the IRS assigned an IRS employee to work on your case, this IRS employee may manually send you a letter through certified mail. For example, when the IRS audits you, the IRS assigns an Auditor to review your tax records. This Auditor may manually send you important letters through certified mail such as the Income Tax Examination Changes letter (a letter that usually claims you owe the IRS more taxes). Further, if you owe the IRS money, the IRS may assign a Revenue Officer (a human being who looks to collect from you and ensure you comply with tax laws) to work on your case. This Revenue Officer may manually send you important letters through certified mail such as the [color=var(--ast-global-color-0)]Final Notice, [color=var(--ast-global-color-0)]Notice of Intent to Levy and [color=var(--ast-global-color-0)]Notice of Your Right to a Hearing letter.
谢谢你