Step 1:
Fold the banknote into the right size first. This example shows dollars, 50 euro notes and japanese banknotes.

Step 6:
Fold the edge in half.

Step 5:
Fold the upper edge inwards, use the prefolded lines pattern as guidance.

Step 2:
Prefold in half, the fold the edges to the centerline.

Step 4:
Prefold in half, then prefold the edges to the centerline.

Step 3:
Fold the edges to the centerline, then unfold the folds of step 2 and 3

Step 10:
This is the other side of the model.
Fold over these two lines

Step 8:
Fold the lower folding line to the prefolded line, see arrow.

Step 9:
Fold over these two lines.

Step 7:
Fold the centerline to the left.

Step 15:
Fold over these two short lines.

Step 12:
Pull the lower edge outwards and press the model flat again.

Step 11:
Press flat.

Step 14:
Fold over these two lines and turn the model.

Step 13:
Fold over these four lines.