Nevada, thankfully, doesn't have state income tax. Federal capital gains would apply depending upon your tax bracket and IF you lived in the home 2 of the last 5 years. If you have lived in the home any 2 of the last 5 years you may not be required to pay taxes on the home.
If it the home that you are selling is an investment property than you will likely owe Uncle Sam unless you do a 1031 and roll you proceeds over into another investment. You CAN"T touch ANY of the money from the sale....it must be placed with a mediator at the time of the closing of your property and rolled into another investment purchase within a specific time frame or you "blow" the 1031 and you will be required to pay capital gains to the feds-no exceptions to the full amount nor the time frame!!
However, if you just want out and don't desire to purchase another property then of course you will likely have to pay the capital gains but your accountant/bookkeeper is the only one that could tell you what tax bracket you personally are in in and the percentage of the basis of your sale you will be required to pay Uncle Sam.
Best of luck...if you need any help my contact information is below.
Valerie Edwards, REALTOR
RRG, SRS, SFR, SRES, RSPS, GREEN, ATHOM
Premier Real Estate