When frozen bacon will last for a year or more but after a year in the freezer the bacon loses freshness but it's still safe to eat as long as the bacon has remained frozen.
If you keep bacon in the refrigerator the bacon will last for 4 days before it spoils.
If you plan to keep the bacon longer than 4 days you should freeze it and then thaw it out in the refrigerator or the microwave before you cook it.
I will stock up on boxes of bacon and put the boxes of bacon in a freezer in my basement to have when I buy the bacon on sale.
The bacon has kept for 5 years before I used it all up.
The bacon isn't as fresh after the first year but the bacon remains safe to eat as long as it's remained frozen.