After leaving a company for a new job, a Roth check was sent to me. Is there any tax consequences if this money is not reinvested? (It's a small amount of only $100)
The earnings portion will be taxed at your marginal tax rate + 10% penalty. If the total is $100, then the earnings portion is probably not very significant for this to be a concern.
But it's something you could put into a Roth IRA and let it compound with the rest of your retirement savings. Depending on your age, the compounding effect of $100 invested early enough tax free can be thousands of dollars at retirement.
i.e. You have 60 days to deposit it into a Roth IRA. Don't let that pass you by.