We have a few different articles with tips on financial assistance and ways to pay for private school tuition here:
Private School Tuition Overview: http://ourkids.net/school/private-school-tuition.php
Paying for Private School 18 Tips: http://www.ourkids.net/school/pay-for-private-school-18-tips.php
Finding the funds to help pay for private school:http://www.ourkids.net/school/finding-the-funds
Resources to help pay for private school:http://www.ourkids.net/blog/resources-to-help-pay-private-school-22369/
Information on private school grants and bursaries, including requirements and a search tool for financial aid and scholarships: http://www.ourkids.net/private-school-grants.php
Private school scholarships: http://www.ourkids.net/private-school-scholarships.php
We also have information on private school tax deductions and credits which may be useful: http://www.ourkids.net/private-school-tax-deductions.php
Overall, private schools are willing to working with parents and offer scholarships or other payment options in order to help cover the costs, so it's a good idea to contact the school(s) of your choice directly to ask what they might be able to offer in terms of financial aid.
You may like to use our Advanced Search tool to browse schools with the programs and activities that suit your child's needs and interests, as well as scholarships and financial aid that are available, here: http://www.ourkids.net/school/school-search.php
Attending any of the upcoming Private School Expos is also an excellent opportunity to sit in on information seminars and speak with schools face to face: http://www.ourkids.net/expo/ - many families find this a valuable resource to helping narrow down their school choices and answering their questions.