You re-do the budget to reflect the raise, but then, the next time they get paid, you don’t see the extra money.
If you or your spouse notice an issue, your service member should talk to Finance, and make sure not to spend any of that extra money or you will find yourself in trouble when the military takes it back.
You can use a bonus to pay off debt, put towards a new home, take a trip, save for retirement, or pad your savings.
While spending a bonus upgrading all your electronics or buying a brand new car can be tempting, make sure to make wise choices with any extra money that comes into your home.