Key points for US cryptocurrency investors to keep in mind include the deadline for submitting 2024 tax returns by April 15, 2025, and the varying tax rates for short-term and long-term crypto holdings. Taxable events for crypto transactions include selling, trading, or spending, while holding or transferring between wallets is not taxable. Accurate reporting of income from mining, staking, airdrops, and crypto payments to the IRS is crucial. Understanding the tax implications of different crypto transactions is essential for compliance and avoiding penalties, as the IRS treats cryptocurrencies as property with taxes due on gains from selling, trading, or disposing of crypto assets.