Sell your mineral rights and save a small fortune. Mineral Rights Taxes can be complicated. It’s important to make sure you don’t pay more in taxes than what you owe – and before you do, check out our article on the subject. Did you know that collecting royalty income can mean paying more in taxes than what you owe? If you own mineral rights for more than 2 years, you’ll pay tax at capital gains rates when you buy or sell them, but not as much as ordinary income tax rates. When you inherit mineral rights, you’ll only have to pay a very low amount of tax on them!