A traditional I.R.A. allows individuals under the age of 50 in depositing as much as $5,500 a year in their accounts.
A traditional I.R.A. allows individuals under the age of 50 to deposit as much as $5,500 a year in their accounts.
A traditional I.R.A. allows individuals under the age of 50 in depositing as much as $5,500 a year in their accounts.
A traditional I.R.A. allows individuals under the age of 50 to deposit as much as $5,500 a year in their accounts.
The verb "allow", in the construction of giving someone permission, idiomatically takes the infinitive.