How to flip Saradomin godsword in OSRS

Flipping Saradomin godsword on the Old School RuneScape Grand Exchange currently makes about -408,115 gp profit per item after the 2% GE tax: buy near 21,000,000 gp (the instant-sell price) and re-list near 21,012,127 gp (the instant-buy price).

• Buy at (instant-sell): 21,000,000 gp
• Sell at (instant-buy): 21,012,127 gp
• Margin after 2% tax: -408,115 gp (-1.94% ROI)
• Buy limit per 4 hours: 8
• 24h volume: 1,007 (liquid)
• Max profit per limit cycle: -3,264,920 gp on 168,000,000 gp of capital

The flip, step by step

1. Place a buy offer at or just above 21,000,000 gp (the current instant-sell price).
2. Wait for the fill. Saradomin godsword is liquid right now, so expect fills within the hour at reasonable prices.
3. Re-list at or just below 21,012,127 gp (the current instant-buy price).
4. The GE takes 420,242 gp tax (2%) per item when it sells, leaving -408,115 gp profit each.
5. Repeat up to the buy limit (8 per 4 hours), a full cycle is -3,264,920 gp on 168,000,000 gp of capital.

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