Assumable Mortgage Calculator

An assumable mortgage allows a buyer to take over the seller’s existing loan, including:

• Interest rate 
• Remaining balance 
• Remaining loan term 

Instead of getting a brand-new mortgage, you step into the seller’s loan — which can be extremely valuable when rates are high.

• FHA loans 
• VA loans 
• Some USDA loans (limited cases) 

Assumable loans are popular right now because they can offer:

• Lower interest rates than today’s market 
• Lower monthly payments 
• Potential long-term savings 
• A way to “beat the market” on financing 

In some cases, buyers are assuming loans with rates 2%–4% lower than current mortgage rates.

 Assumable mortgages are not always simple.

If the home is worth more than the remaining loan balance, you must cover the difference.

• Home price: $450,000 
• Existing loan balance: $300,000 
• Gap: $150,000 

That gap must be covered by:

• Cash down payment, or 
• A second mortgage, or 
• Combination of both 

This is often the main reason assumable deals fall apart, 

not credit or income.

• Easier qualification than new loan in many cases 
• Requires lender approval 
• Mortgage insurance may still apply 

• Available to both veterans and non-veterans (with approval) 
• Buyer may need to qualify with lender 
• Seller’s VA entitlement may remain tied to the loan until released

In Texas, mortgage structure matters.

• Cash-out refinances are typically limited to 80% loan-to-value (LTV) under Texas law 
• Assumable transactions must still follow lender and agency guidelines 
• You may need additional financing if equity gaps are large 

Every situation is different, so proper structuring is critical before moving forward.

Customers have questions, you  

An assumable mortgage may be a strong option if you are:

• Buying a home with a low existing interest rate 

• Able to bring cash or structure a second lien 

• A VA buyer leveraging entitlement strategy 

• Looking to reduce monthly payment without refinancing risk