By default, the IRS assumes that income is earned equally over the year, so they want to see taxes paid over the year. So by default, they would want to see 1/4 paid on or before April 15, 1/4 on or before June 15, 1/4 on or before Sept 15, and 1/4 on or before January 15, 2025.
If you use the alternative method of calculating payment due dates, where you look at your income quarter by quarter, the taxes for a lump sum of income paid in April would be due June 15.
You can use the TaxCaster to estimate your tax due, or the tax calculator at the IRS web site.
TaxCaster tax calculator
https://www.irs.gov/individuals/tax-withholding-estimator
Regardless of when you pay, as long as you pay enough that you owe less than $1000 when you file your tax return, you shouldn't be assigned a penalty. If you want to string the IRS out and keep your money a little while longer, I would pay 1/4 as soon as possible and the rest on the quarterly schedule. Just don't accidentally spend the money and not have enough to pay when payments are due.
