US stocks from Nigeria: How to invest in the world's largest market

Nigerians can own US stocks and ETFs through local fintech apps or international brokers, giving them exposure to a market that accounts for about 60% of global equity valuation. But currency spreads and tax rules can cut into returns.

Why US equities matter

Since 1928, the S&P 500 has delivered an average annualized total return of roughly 10.0% to 10.5% with dividends reinvested. After inflation, long-term real total returns to US equities have averaged about 7% annually.

The last 15 years have seen an explosion of cloud computing, smartphones, e-commerce and artificial intelligence. The tech companies driving those revolutions, Apple, Microsoft, Nvidia, Amazon, Alphabet and Meta, are US-listed businesses. Over the past decade, US companies have enjoyed higher profit margins and much faster earnings growth than companies in Europe, Japan or emerging markets.

How to get exposure

The average middle class Nigerian resident can directly own shares or ETFs in the US markets through a local fintech app such as Bamboo or RiseVest. These platforms allow funding with locally accepted bank transfers and debit cards in Naira. The Naira is automatically converted to dollars using the prevailing exchange rate. The spread when converting Naira to dollars might eat into your initial capital. If the Naira strengthens unexpectedly against the Dollar, your net return in Naira will be much lower. You can top up dollar accounts to avoid conversion rates if you hold a domiciliary bank account or virtual USD card.

Popular international brokers include IBKR, Charles Schwab International, Saxo Bank, Exante and Swissquote. Most others, including Robinhood, Fidelity and Vanguard, require US tax residency or an SSN and do not support native non-resident accounts from Nigeria. These brokers are best for high-net-worth investors seeking to invest large sums from $100k+ to millions USD with sophisticated order execution, ownership of more complex fixed-income instruments and options strategies, deep analytics, direct global exchange access and estate-planning tools. Benefits include deep liquidity, institutional-level execution, virtually no asset custody risk, ultra-low trading commissions and regulatory protection such as US SIPC up to $500,000 per account and UK FSCS.

Rather than constantly selecting individual company stocks, a retail investor can passively consider broad-market ETFs like those tracking the S&P 500 such as SPY and the Nasdaq-100 such as QQQ. Dollar-cost averaging means investing the same amount, for example 50 or 50,000 monthly, regardless of price to even your cost of purchase over time. Compare FX spreads on deposits and withdrawals and the trade commissions charged by different apps to find the best place to create an account.

Taxes and risks

Once dividends from a US company are paid, they are subject to an automatic 30% withholding tax by the US Internal Revenue Service on funds paid to non-US residents before the money is credited to your account. Profits earned from selling shares at a profit, capital gains, are taxable under the Nigerian personal income tax system. The system taxes residents on earnings globally, but there are tax exemptions for earnings below basic income levels.

For the naira, US stocks offer a hedge against Nigeria's inflation by protecting buying power and participating in the international equity market. But conversion spreads, naira movements and taxes determine your actual return when you translate gains back to local currency.