Small slivers.

Do you have a bullnose tile for the end piece? If so I’d draw a line from the end of your upper cabinet and end the tile there. If you don’t have bullnose tile, how were you planning to end things? Schluter edge?

STOP, there's more to consider....what about the the electrical box? Electrical boxes are typically "pulled forward" to accommodate the thickness of the tile. You can't do that if you end the tile at the edge of the cabinet. If you have bullnose tiles, the top row of tiles (on the short wall) can be cut down (in height) to line up with the bottom of the cabinet. They can also be cut down for the (top to bottom) wall edge. (You're cutting your own "pencil tiles"). Alas, you will have to cut slivers and paint that wood grain under the cabinets. Remember to caulk, not grout, the seams...where the tile meets at the corners, along the countertop, and between the slivers and the wood.

Hey Haley!!!

It seems to me that Chiflipper really has a handle on this dilemma! How can I help?

A few questions...

Are you doing this tile install yourself?

Who is the tile manufacturer and retailer?

What trim pieces are available in the same color?

I feel you have a few options, but I would need more information to confirm. Here is an illustration of how I think this install should go for most correct results based on my geometry and perspective drawing calculations... You will see that even with a bullnose (on the short side of the tile) you would end up with a few very tiny pieces on the very end which can look sloppy, unintentional and not polished. I think a pencil trim on the top and side edges would be the most correct solution. Here is my drawing! Please reach out to me if you have other questions.