In addition to applying to certain types of income of a child born in 2006 or
later, tax on split income (TOSI) may now also apply to amounts received by adult individuals from a related
business. Where TOSI applies, the disability tax credit can now be used to reduce the individual’s tax payable for the year.
However, income that is subject to TOSI must now be added to the individual’s net income for the purpose of calculating
various deductions, credits and benefits.