Nevada
Nevada authorizes interactive gaming under NRS 463 and Gaming Commission Regulation 5A, but to date only online poker has been offered (WSOP.com is the sole operator); online casino slots and table games are not permitted. Mobile/online sports betting is legal statewide, yet state rules require in-person registration at a licensed sportsbook to open and fund an account. The Nevada Gaming Control Board investigates and enforces, while the Nevada Gaming Commission is the final licensing authority. This limited scope is why the market is classed as partially-regulated.
Gross gaming revenue (GGR)
6.75% state GGR tax (tiered) - applies to sports betting and online poker
Nevada's flat gaming tax applies to all gaming: 3.5% on the first $50,000 of monthly GGR, 4.5% on the next $84,000, and 6.75% above $134,000 - effectively 6.75% for major operators. There is no separate or higher online-casino tax because online casino is not authorized. A federal 0.25% excise on sports-betting handle also applies.
Interactive online poker launched under AB 114 (Ultimate Poker Apr 2013; WSOP.com Sep 2013)
Online casino (slots/table games) still not authorized; would require new legislation
Not legal or tax advice. This is a teaching summary; confirm every figure against the primary regulator (Nevada Gaming Control Board) before relying on it.