Can I use a personal loan as a down payment on a second home or vacation home?

The core mortgage rule: Fannie Mae and Freddie Mac guidelines (which govern most conventional mortgages) require that down payment funds come from acceptable sources - savings, gift funds, or sale of other assets. Borrowed funds are explicitly prohibited as down payments for conventional conforming mortgages. This rule applies to all mortgages backed by these agencies.

Why lenders check: Mortgage underwriters review your credit report for new credit accounts and large deposits in your bank statements. A personal loan taken 60-90 days before mortgage application shows up on your credit report and can be traced to your bank deposits. If an underwriter sees a $30,000 personal loan deposit coinciding with your down payment, they will investigate the source.

Non-QM and portfolio loans: Non-qualified mortgages (non-QM) written by private lenders who do not sell to Fannie/Freddie have more flexible guidelines. Some portfolio lenders (banks that keep loans on their own books) may allow borrowed down payments if the combined DTI is still acceptable. These loans typically have higher rates.

Second home vs investment property: Conventional guidelines are stricter for investment properties (typically 15-25% down) than for second homes (10-20% down). Both categories prohibit borrowed down payments from conventional lenders.

Legal and ethical considerations: Deliberately not disclosing a personal loan as the source of your down payment on a mortgage application is considered mortgage fraud under federal law. The consequences include loan recall, fines, and potential criminal prosecution. This is not a gray area.

Better approaches: Build the down payment from savings over time. Explore owner financing on the vacation property. Consider a cash-out refinance on your primary residence if you have equity. Look at vacation home sharing platforms as an alternative to ownership.