If I participate in my employer's 401K plan, can I also set up a SEP-IRA for my self-employment income?

If I'm participating in my employer's 401K plan, may I also set up a SEP-IRA for my self-employment income?

I am a Nonresident Alien and I live in Ensenada Baja California Mexico. I’m about to buy many electronics. Total value would be around $12,000 for my personal use. I am building my own house and I want to buy from SEARS in Chula Vista, California, but I don’t want to pay double tax (in the US and Mexico) since I am going to import the merchandise to Mexico. Is there any way to avoid the payment of taxes in Chula Vista?

Is commission rebate from the buyer's Realtor to the buyer a taxable income? Transaction was done outside of the escrow and 1099-Misc (Box 7) was issued to the buyer following January. 1) is this taxable income for the buyer and 2) if so, is he responsible for SE taxes as well?

Can The IRS Revoke My Passport?

Which is the best online insurance broker in Australia

Which washer/dryer will qualify for an energy-efficient tax credit?

Is a credit card statement considered a viable replacement of a receipt for income tax documentation of expenses or are credit card slips still required?