How to flip Toadflax seed in OSRS

Flipping Toadflax seed on the Old School RuneScape Grand Exchange currently makes about -67 gp profit per item after the 2% GE tax: buy near 1,039 gp (the instant-sell price) and re-list near 991 gp (the instant-buy price).

• Buy at (instant-sell): 1,039 gp
• Sell at (instant-buy): 991 gp
• Margin after 2% tax: -67 gp (-6.45% ROI)
• Buy limit per 4 hours: 600
• 24h volume: 119,892 (extremely liquid)
• Max profit per limit cycle: -40,200 gp on 623,400 gp of capital

The flip, step by step

1. Place a buy offer at or just above 1,039 gp (the current instant-sell price).
2. Wait for the fill. Toadflax seed is extremely liquid right now, so offers at fair prices typically fill within minutes.
3. Re-list at or just below 991 gp (the current instant-buy price).
4. The GE takes 19 gp tax (2%) per item when it sells, leaving -67 gp profit each.
5. Repeat up to the buy limit (600 per 4 hours), a full cycle is -40,200 gp on 623,400 gp of capital.

Margins move constantly. Re-check the live Toadflax seed numbers and price chart on GrandExchange.com right before committing.