Many doctors are being told they can borrow to pay their PAYG Instalments and claim the interest as a deduction. While it sounds appealing—especially when tax feels overwhelmingly high—this strategy is incorrect, risky, and not supported under Australian tax law. In this article, we explain why borrowing to pay tax is never deductible, why medical professionals should be cautious about this advice, and the smarter, compliant strategies that genuinely strengthen your financial position.