Grand Exchange Tax: Remember that the Grand Exchange charges a 1% tax on all sales. Our calculator automatically factors this into profit calculations, but it's important to understand this reduces your actual profit margins.
Market Volatility: Potion prices can fluctuate rapidly based on game updates, PvM trends, and player demand. Always verify current prices in-game before making large investments, and be prepared to adjust your strategy.
Buy Limits: Each potion type has a 4-hour buy limit on the Grand Exchange. This restricts how many potions you can purchase in a given timeframe. Plan your arbitrage strategy around these limits to avoid being unable to execute your trades.
Competition: Potion arbitrage is a popular money-making method. High-profit opportunities may attract competition, which can reduce profit margins. Act quickly on the best opportunities and consider diversifying across multiple potion types.