If I live in one state and have my license/car registered there, but my payroll is taxed under another state, what is the greatest penalty I can face from the IRS?

[bg1234]

This is very helpful and makes alot of sense thank you, when you say 'estimated quarterly payments' is that the only time interval option? Could I just wait till I file my taxes at the end of the year to pay the state taxes I owe in Montana? I ask because it would be easier for me financially to pay the difference all at once when I file versus paying NC and MT taxes in parallel throughout the year THEN getting reimbursed for the NC taxes once I file. If that makes sense. 

[TomD8]

There may be penalties if you wait til the end of the year.  See Estimated Tax Penalties and Interest in this Montana tax reference:

https://montana.servicenowservices.com/citizen/kb?id=kb_article_view&sysparm_article=KB0013201

[Rgto]

Hi @xmasbaby0 ,

I have a similar concern, you mentioned the IRS doe not concern about auto registration. I am a resident of NY, and have a second home in FL. I'm the sole proprietor of an LLC registered in Fl at my Florida home. I'm planning on buying a car for my LLC, mainly for business purposes and expanding my client base in the state of NY,  so the car will be used more often in NY. I was thinking of registering the car in NY, but the LLC is in Florida, so I'm not sure if that would be possible. I have a personal car in NY and a Personal Car in Fl, so this new one would be for business purposes only.

Any suggestion or guidance would be greatly appreciated.