I'm 50 years old and likely will have to work until 62-64. My son is now out of college and the money that I have been using to fund his schooling I would like to now turn towards retirement investments.

Which would be better - increase my monthly contributions to a 403b with pre-tax dollars or start purchasing IRA's that I would not be taxed on when I begin to use them in retirement?

Thanks

I would do both. Split the money between them.

I'm 50 years old and likely will have to work until 62-64. My son is now out of college and the money that I have been using to fund his schooling I would like to now turn towards retirement investments.

Which would be better - increase my monthly contributions to a 403b with pre-tax dollars or start purchasing IRA's that I would not be taxed on when I begin to use them in retirement?

thanks
You could certainly begin investing in your IRA. A self directed one may be the one to consider. This way you can make other investments without tax consequences.