If you withdraw funds from a qualified retirement plan, park them in your personal bank account, and then deposit them in another qualified retirement plan, that would be an indirect rollover. You must complete the rollover within 60 days. Any funds not rolled over within 60 days will be treated as a taxable withdrawal. And any funds added to the new plan outside of a rollover will be treated as new contributions--they may be tax deductible depending on your circumstances, but you will be subject to annual and income-based limits on contributions. You can also only do one indirect rollover per 12 months. And you would have to tell the new plan in advance that you are doing an indirect rollover so they record it correctly.
If you withdraw funds from a pre-tax retirement account and deposit them in a Roth IRA, that is a rollover and a conversion, and you will pay income tax on the conversion (but not a penalty if you are under age 59-1/2). The 60 day rule still applies.
