If the (2) dependents do not need to file their own tax returns (that is, separate tax returns from yours), then their physical addresses do not matter for tax filing purposes. In other words, if they qualify as your dependents, then they can have separate mailing or living addresses, that are different from your own, and you do not have to indicate or disclose that in any way on your own tax return. The fact that they are your dependents is enough to report. You do, however, require each of their full names, dates of birth, and Social Security Numbers, and that information is relevant to the tax return.
Now then, if your (2) dependents need to file their own tax returns, then you (or they) will need to create a brand new TurboTax online account for each one of them. The way the online TurboTax software works is that it can be used only to prepare a single tax return, per account, per year.
That said, the single tax return in the prior paragraph can mean a Married Filing Jointly couple, with several dependent children (or other dependent persons). It can also mean just one single person with no dependents.
The primary taxpayer's Social Security Number is the key to keeping each return "separate." Addresses only matter for the primary taxpayer; not for dependents (unless they file their own tax returns, as explained, in which case they become the primary taxpayer for that return).
Finally, just to clarify a point, a dependent can indeed file their own tax return; it's just that they have to disclose that fact on their own tax return, in which instance they do not get to enjoy the tax benefit of having their own personal exemption.
We hope this answer provides you with enough information to proceed with your tax return(s). Thank you for asking this question.
