For one member pllc , which is more beneficial, to be taxed as a sole proprietor or s-corp?

It depends upon your income and the type of business. It may be best to meet with an accountant to discuss the benefits of each. Also, if you are...

Tax return,irs

You will need to add up your income to determine what is reported. You may also want to meet with a tax profession to determine if you were an...

Tax filing with my spouse

Your question is a little confusing and some of this will depend upon her immigration status. You should meet with a CPA to determine the best...

Writing off business expenses- must I be incorporated first?

See my answer on your other question page.

Writing off business expenses- must I be incorporated first?

You do not have to be incorporated to write off business expenses, but it must be a business in order to write off the expenses and not just a...

How do I prove I did not apply for a sales & use tax?

Most likely FL filed a return on your behalf. If there were no sales, just file a 0 return to correct the non-filed return which should help.

Can I reuse a S-corp that has "stopped paying wages" before?

If the Company is still in good standing you should be able to use it again.

You should use the name that is registered with IRS and matched the EIN.

When filing CA state taxes after you move to FL, how do you make sure they aren't charging tax on your income from the new state

You should file a part year resident return which allows you to indicate which months you lived in a state.

You may want to post this under copyright.