Here are the current homeschool rules from the MathCounts website:
HOW HOMESCHOOLS PARTICIPATE: Homeschools and/or homeschool groups in compliance with the homeschool laws of the state in which they are located are eligible to participate in MATHCOUNTS competitions in accordance with all other rules. Homeschool coaches must complete the 2017-2018 Homeschool + Virtual School Participation Form, verifying that students from the homeschool or homeschool group are in the 6th, 7th or 8th grade and that each homeschool complies with applicable state laws. Forms can be downloaded at www.mathcounts.org/competition and must be submitted to the MATHCOUNTS national office in order for registrations to be processed.
It looks like you need to complete a MathCounts school registration form, marking your school as a homeschool where it asks for school type.
Then, in addition, you need to complete and send in this form (even if you child is competing as an individual):
2017-2018 homeschool + virtual school participation form - MathCounts
You should be contacted with details of the Chapter competition after your registration is processed, but if not, here's a listing of all the chapter coordinators & their contact info. \
If you don't know which chapter you're in, then I'd suggest contacting your state coordinator (same link) and asking him/her.
Our family participated several years ago, my son as an individual and my daughter as part of a homeschool math club. Lots of fun!! Hope you enjoy it as well.
Edited by Kathy in Richmond, 06 October 2017 - 01:00 PM.