I’d like to do a large Roth conversion and calculated IRS and State taxes to be $38.5k and $14.5k respectively can

[martinmcarreno]

Can I pay the taxes in September 2025 and January 2026, how do I print vouchers for the IRD and the state?

[NCperson]

you can just pay online at the IRS website - much easier and more secure. 

Directpay.irs.gov

google your state and they probably have a direct pay option as well

[baldietax]

dupe question - agree with other comment to direct pay at irs.gov if able, avoid sending checks to IRS and state; and for this scenario you will get penalty if you split this payment evenly between Q3 and Q4 that won't work, believe you will be underpaid in Q3 whether you used default quarterly or AI method on Form 2210 - see https://ttlc.intuit.com/community/taxes/discussion/do-i-have-to-pay-penalties-on-a-large-roth-conver...