Can alternative minimum tax balance be carried forward to be taken into account in an s. 153(1.1) application? CRA responded:
To reduce tax deductions at source, an individual needs a letter of authorization from a Tax Services Office. …
Where a taxpayer has an alternative minimum tax balance to carry forward … CRA … will agree to consider the taxpayer's request to reduce tax deductions at source for one of the years to which such balance can be carried forward. The taxpayer must make a written request or file Form T1213 and provide proof that the taxpayer has an alternative minimum tax balance to carry forward.