Understanding the permanent $750,000 mortgage‑interest cap helps taxpayers maximize deductions and ensures CPA candidates can accurately advise clients and pass the exam.
The video walks through a CPA‑exam style multiple‑choice question on Schedule A, focusing on how much mortgage interest is deductible when a married couple holds acquisition debt on two residences. It clarifies the $750,000 cap on qualified acquisition indebtedness and shows how the limit applies across a primary home and a second home.
The couple’s loans total $800,000 ($650,000 for the principal residence and $150,000 for a second‑home improvement). Because only $750,000 qualifies, the deductible interest is calculated on that amount. Assuming a 10% rate, the allowable deduction would be $75,000, with the remaining $50,000 of interest being nondeductible.
The instructor emphasizes that “the amount is $750,000, and this amount is now permanent,” noting that the Tax Cuts and Jobs Act made the $750,000 ceiling a lasting provision after its temporary phase expired in 2025. This contrasts with the pre‑2018 $1 million limit and underscores the need to stay current on tax law changes.
For taxpayers, the rule means careful tracking of total acquisition debt across all homes to avoid over‑deduction. For CPA candidates, mastering this cap is essential for the exam and for advising clients on mortgage‑interest planning, especially as the permanent limit shapes future home‑financing strategies.
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