How old is the taxpayer?

Which "exclusion" are you referring to?

Youre looking for the place to enter the ROTH basis so its not taxable....scroll down the 1099R worksheet you should see a quickzoom button to the ROTH basis worksheet.

Taxpayer is 36. Account has been opened over 5 years.  Contributions are not taxed. I read that the withdrawn earnings are both tax- and penalty-free as long as you use them to buy, build, or rebuild a home.

no, not tax free....theres an exception to the penalty for early withdrawal on the first 10k used for for first time homebuyers.

Thank you very much!

Interesting, I didnt realize that.

"I read that the withdrawn earnings are both tax- and penalty-free as long as you use them to buy, build, or rebuild a home."

Nope, but it not "up to $10,000" either. That is a life-time maximum, but not the only reason there might not be penalty or income tax.

There are ordering rules: https://www.investopedia.com/retirement/tax-treatment-roth-ira-distributions/

"distributions of Roth IRA assets from regular participant contributions and nontaxable conversions can be taken at any time, tax-free and penalty-free. However, distributions on taxable conversion amounts may be subject to the 10% early distribution penalty. Distributions of earnings that are part of a non-qualified distribution are taxable and may be subject to an additional 10% early-distribution penalty."

"and used the total distribution for purchase of a first home."

"Even if you are under age 59½, you don't have to pay the 10% additional tax on up to $10,000 of distributions you receive to buy, build, or rebuild a first home. To qualify for treatment as a first-time homebuyer distribution, the distribution must meet all the following requirements.