Question : How do I make a database that stores data from a form with sections that have an unknown number of entries

I have a form that will be entered into a database it has fields for name address etc. but then it also asks for how many bank account info like balance account type etc
it also asks for real estate information
since I dont know how many bank accounts or properties the person filling out the form has I dont know how many columns to create in a table
I assume this can be solved by having multiple tables but I dont know how to proceed
I am using sql 2008

Answer : How do I make a database that stores data from a form with sections that have an unknown number of entries

You can link the data by an id# assigned for the first table to each person.

If you don't, and you use XML, etc., you will make it much much harder on yourself later, as data needs to be added, changed, etc..