Can I Do Veneers On Upper Teeth Without Doing Lower Teeth To Save Money?

Yes you can only do the uppers. You may want to try whitening the lower teeth first before you commit to treatment. This way the dentist can match the veneers to your newly whitened color.

Placing veneers on lower teeth is very challenging as the teeth are very small to begin with. 

The rule of veneers is to never to 6. You can do 4, 8, or 10. In most cases, doing 6 veneers on the top tends to look most fake.

The cost is definitely something that holds people back from doing both upper & lower veneers.  I usually do only upper veneers & whiten the bottom teeth so it does not look mismatched on the shade.  Its a great way to change a smile without going over the budget. Obviously every case is different, it all depends on your over all oral health.