It's not clear what is actually taxable.
Cash money that you inherit is not taxable. If you inherit property, like stocks, land, or other investments, you don't pay tax at the time of the previous owners death. Instead, you receive a stepped-up cost basis, and then owe capital gain tax when you sell the property or investment--you aren't taxed on the proceeds, only the gain. And if you sell land you own, you again owe capital gains tax on the gain, not the entire proceeds.
Then, if you have a lump sum of income during the 4th quarter of the year (Sept 1-Dec 31), you owe a payment of estimated taxes by January 15, 2025. You can make the payment at www.irs.gov/payments, be sure to select "2024 estimated taxes" as the reason.
Also be aware, that you may still owe a penalty for not paying enough during the year, due to how the law treats estimated payments and withholding. To avoid this, you should include form 2210 with your tax return, and complete schedule AI (the annualized income method of computing the penalty). This form shows the IRS that your income was "lumpy", not spread out over the year, and your payments were correct for the amount of income in each quarter.
