Article continues belowThrough these investment accounts, parents and guardians can open Trump Accounts for their children. How much money will a Trump Account earn over my child’s life? You would need to contribute a total of $90,000 to your child’s Trump Account over 18 years to accrue the maximum investment. ‌Based on the estimates, if you contribute $250 per year to your child’s Trump Account, when they turn 18, they will have $20,700. How do I open a Trump Account?