Tax Reference Materials
TaxSlayer Springboard if you want to get to the practice lab or live TaxSlayer https://vita.taxslayerpro.com
or these are the direct links:
TaxSlayer practice lab link https://vita.taxslayerpro.com/IRSTraining/en/Account/Access
TaxSlayer software link https://vita.taxslayerpro.com/ProAvalon/CoreLink/Index?ReturnUrl=%2fproavalon