Submit Application Manually to Each School
You can complete the Parents Financial Statement documentation which will be part of the package the school sends you. Be sure to include copies of your W-2's and 1099's for the most recent tax year. Then submit directly to each school.
Submit the PFS Online
The National Association of Independent Schools offers an online application service. The advantage is that you can point and click your way through the entire PFS application process. When you are finished, you can select the NAIS member schools which will receive your PFS. This is a great time-saver, to say the least.
The instructions are clear and concisely written. You should have no trouble completing your PFS online.