Ten Principles of Sound Tax Policy

From the Tax Foundation's Tax Policy Blog:

1. Transparency is a must.
2. Be neutral.
3. Maintain a broad base.
4. Keep it simple.
5. Stability matters.
6. No retroactivity.
7. Keep tax burdens low.
8. Don't inhibit trade.
9. Ensure an open process.
10. State [provincial] and local taxes matter.

Each point is explained in their posting. The points make sense