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The Daily Insight

Does new tax law limit mortgage interest deduction?

Author

Sarah Duran

Published Mar 30, 2026

Yes, your deduction is generally limited if all mortgages used to buy, construct, or improve your first home (and second home if applicable) total more than $1 million ($500,000 if you use married filing separately status) for tax years prior to 2018. Beginning in 2018, this limit is lowered to $750,000.

Is there a limit on mortgage interest deduction in 2020?

Taxpayers can deduct mortgage interest on up to $750,000 in principal. The debt must be “qualified personal residence debt,” which generally means the mortgage is backed by either a primary residence, second/vacation home, or by home equity debt that was used to substantially improve one of these residences.

Is mortgage interest limited to 10000?

The table above shows that if you’re single taxpayer, you’d need at least $340,000 in mortgage debt to claim the mortgage interest deduction. For example, you can deduct up to $10,000 in state and local taxes — including property taxes. The limit is $5,000 for married couples filing separately, however.

Is the new tax law$ 1m or 750k?

Under the new tax law in 2018. Is the balance limit $1M or $750K if one of the two mortgages is closed prior to 2017. I currently have 2 mortgages (primary & secondary home both closed before 2017) with balance of $450K on primary home and $400K on secondary home.

What’s the new tax law for mortgage interest?

For 2018-2025, the TCJA also generally eliminates the prior-law provision that allowed interest deductions on up to $100,000 of home equity debt, or $50,000 for those who use married filing separate status.

What was the mortgage interest deduction limit before TCJA?

Signed in 2017, the Tax Cuts and Jobs Act (TCJA) changed individual income tax by lowering the mortgage deduction limit and putting a limit on what you can deduct from your home equity loan debt. Before the TCJA, the mortgage interest deduction limit was $1 million. Today, the limit is $750,000.

Is the mortgage debt limit$ 1m or 750k?

Is the balance limit $1M or $750K if one of the two mortgages is closed prior to 2017. If you itemize, you can deduct the interest on up to $750,000 in mortgage debt, if the loan was used to buy or improve a first or second home. Mortgages and refinances taken out before December 16, 2017 are grandfathered in at the $1 million debt limit.