GE Flipping Calculator for Old School RuneScape
Type an item name for its live buy and sell prices and buy limit, or enter your own numbers. Margin, profit per flip and per 4-hour limit, ROI and break-even, all after the 2% tax.
Reading the result
Margin per item is the sell price minus the tax minus the buy price. Profit multiplies it by the quantity; ROI divides it by the gold invested. Break-even is the lowest sell price that returns the buy price after tax. When an item is selected, profit per limit shows a full 4-hour buy limit at the same margin. The formula page lists the tax rules and rounding. Prices are the latest instant trades from the OSRS Wiki real-time API; thin items can have stale numbers, so check the time stamps.
FAQ
How is the Grand Exchange tax calculated?
When an item sells, 2% of the sale price is taken, rounded down per item, with a cap of 5,000,000 gp per item. Items that sell for less than 50 gp are not taxed, and a short list of items is exempt: old school bonds and basic tools such as chisels, hammers, pestles and mortars, needles and so on. The buyer pays nothing extra.
Which price is the buy and which is the sell?
When you pick an item the calculator fills the buy price with the latest instant-sell price (what sellers accept right now, the lower number) and the sell price with the latest instant-buy price (what buyers pay, the higher number). A flip buys at the low and sells at the high; adjust either if you offer different prices.
What is the buy limit?
Every item can be bought at most a fixed number of times per 4 hours per account across all your offers. Profit per limit shows what one full limit earns; the quantity turns red when it exceeds the limit.
What is the break-even sell price?
The lowest sell price at which you get your buy price back after the tax. Below it the flip loses money even though the sell price is above the buy price.
Old School RuneScape is a trademark of Jagex. This site is an independent fan-made tool and is not affiliated with, endorsed by or sponsored by Jagex. Game names are used only to describe what the calculators are for. No game art, icons or logos are used. Formulas are compiled from public sources and may lag behind patches — each tool shows the game version it was checked against.