报税求助：underpayment penalty的弥补措施

正在turbo tax报税中。 今年出现了underpayment penalty。 我们处于加州的受灾地区。 按照irs的解释：“The IRS is offering relief to any area designated by the Federal Emergency Management Agency (FEMA). This means that individuals and households that reside or have a business in Alameda, Colusa, Contra Costa, El Dorado, Fresno, Glenn, Humboldt, Kings, Lake, Los Angeles, Madera, Marin, Mariposa, Mendocino, Merced, Mono, Monterey, Napa, Orange, Placer, Riverside, Sacramento, San Benito, San Bernardino, San Diego, San Francisco, San Joaquin, San Luis Obispo, San Mateo, Santa Barbara, Santa Clara, Santa Cruz, Solano, Sonoma, Stanislaus, Sutter, Tehama, Tulare, Ventura, Yolo and Yuba counties qualify for tax relief. The current list of eligible localities is always available on the Tax Relief in Disaster Situations page on IRS.gov. The tax relief postpones various tax filing and payment deadlines that occurred starting on January 8, 2023. As a result, affected individuals and businesses will have until May 15, 2023, to file returns and pay any taxes that were originally due during this period. This includes 2022 individual income tax returns due on April 18, as well as various 2022 business returns normally due on March 15 and April 18. Among other things, this means that eligible taxpayers will have until May 15 to make 2022 contributions to their IRAs and health savings accounts.” 我是否可以理解为，在4月18日或者5月15日之前，补交了税款，那就不需要支付罚金了？ 如果是这样理解，那么怎么样来补交？补交到应交税款的90%？还是按照turbo tax把所有需要补交的税款上交？
之前没有注意到，2020年请会计师报税，她也没有给过任何的提醒。2021自己用turbo tax报税，也没有任何penalty的显示。今年turbo tax出现penalty，在想办法弥补。请大家出主意。 先谢谢大家！

penalty是你去年交的预扣税/estimated tax不够，turbo tax给你算出有penalty，那估计是免不了了。除非你补交2022 Q4 estimated tax 能让你避免罚款，这个好像也延期了，你自己查一下。
另外你这是旧闻了，新闻是延期到Oct 16.

同样不懂，帮顶。

以后不确定的话，随时调整W4，保证在payroll交满前一年应交税的110%，没有罚款

我公司的报税律师说如果是第一次需要交penalty的话IRS大概率会给豁免，因为我们今年也欠了税，他建议把欠的补上，如果IRS寄信来的话可以补一个说明保证以后不会再under pay云云，大概率过关。