In 2020k, I received a 1099-R for a normal retirement distribution. I used that (after taxed) money and opened a ROTH IRA account within 60 days. Is this a conversion?

Yes, a rollover from a Traditional 401K to a Roth IRA is considered a conversion.

Maybe, but doublecheck with the IRS requirements to be sure.

 

Can I roll over my IRA into my retirement plan at work?

You can roll over your IRA into a qualified retirement plan (for example, a 401(k) plan), assuming the retirement plan has language allowing it to accept this type of rollover. Roth IRAs can only be rolled over to another Roth IRA.

 

Can I roll over my workplace retirement plan account into an IRA?

Almost any type of plan distribution can be rolled over into an IRA except:

• Required minimum distributions,
• Loans treated as deemed distributions (see Retirement Topics – Plan Loans for loans treated as actual distributions for rollover purposes),
• Hardship distributions,
• Distributions of excess contributions and related earnings,
• A distribution that is one of a series of substantially equal payments,
• Withdrawals electing out of automatic contribution arrangements,  
• Distributions to pay for accident, health or life insurance,
• Dividends on employer securities, or
• S corporation allocations treated as deemed distributions.

For details, see rollovers of retirement plan distributions. Distributions from a designated Roth account can only be rolled over to another designated Roth account or to a Roth IRA.

Since this is a conversion, do not enter it anywhere under Deductions & Credits.  It's not a new retirement contribution.