Quick Answer
The current safe money route is normal trash farming plus upgrades, careful duplicate handling and surplus-card sales. Before selling duplicate cards, check whether three copies at the same Quality can be Levelled Up. Do not plan around repeated Kotalion selling; the August 27 patch removed that exploit and Kotalion can no longer be sold.
Best Way to Make Money Fast
Early money comes from the normal trash loop: search, keep valuables, recycle garbage bags, and avoid wasting time walking back and forth with a full inventory. Speed and carry improvements can be worth more than one short-term sale if they make every later pile faster.
Trash Bags vs Selling Cards
Trash bags are steady progress because recycling also moves the 7, 69, 256 and 999 garbage-bag achievements. Selling cards may help cash goals, but do not sell a card until you know whether it is a needed set entry, foil, rare duplicate, Level Up candidate or repair candidate.
Should You Sell or Level Up Duplicate Cards?
Check Level Up first when you have three copies of the same card at the same Quality. If the collection UI shows the yellow border, arrow and green Level Up button, those copies can become one higher-Quality card instead of immediate sale fodder.
Does the Kotalion Infinite Money Method Still Work?
No. The August 27 patch removed repeated Kotalion selling. Kotalion now remains with you once obtained, so the old find, sell, drop again and repeat loop should not be used for money routing.
Upgrade Before Selling?
If you are still slow, low on carry capacity or stamina-limited, an upgrade can increase future income more than hoarding cash. If you are close to Rainy Day Fund or Why Don’t You Spend It?!, pause spending and route toward the achievement threshold.
Money Achievement Route
Lucky #1 Dime asks for $1,000, Savings Account asks for $10,000, Rainy Day Fund asks for $50,000, and Why Don’t You Spend It?! asks for $100,000. Treat those as planned checkpoints rather than accidental unlocks.
Late-Game Money Farm
Once stats are high or maxed, repeat clean piles with fewer wasted trips, keep cereal boxes and collectibles separate, check duplicate-card Level Up before sales, and use Jenny’s $10,000 cereal-box option only when the box or foil route is worth the spend.
Common Money Mistakes
Do not sell unknown cards before updating the tracker, do not spend below a savings threshold if you are actively chasing that achievement, and do not ignore upgrades that make every later pile faster.