Hi Jeri. My machine has a thread cutter. No it doesn't tie of, just cuts the threads. If you want it secured you need to either back stitch a few stitches or use a preset stitch that does this automatically. Whether you have this function or not, it's a very good habit to use a scrap leader, just a doubled square of fabric to start off your stitching. You avoid the machine eating your work. It becomes second nature very quickly. Hope this helps, cheers!!