\[
\text{MYR}=\frac{50{,}000 \times 0.0877}{1-(1.0877)^{-7}}
=\$9{,}857.98
\]

Minimum yearly repayment for the first year: **$9,857.98**.

Controlling authority: **section 109E(5) of the Income Tax Assessment Act 1936 (Cth)**.