How Lenders Evaluate Tenants in Common Purchases

This post is for informational purposes only and does not constitute legal or financial advice. Tenants in common arrangements involve legal and financial considerations that vary by situation. We recommend consulting a licensed real estate attorney before entering into any ownership agreement.

A tenants in common purchase goes through the same basic underwriting process as any other mortgage. The lender is still evaluating creditworthiness, income stability, debt levels, and the value of the property.

What makes TIC purchases different is that there are multiple borrowers involved, and sometimes a property structure that does not fit neatly into a standard loan program. Knowing what lenders are looking at — and why — helps you prepare a stronger application and avoid surprises during underwriting.

Credit score evaluation is one of the areas where TIC purchases differ most from single-borrower applications.

For each borrower, lenders pull credit reports from all three major bureaus — Equifax, Experian, and TransUnion — and take the middle of the three scores. When there are multiple borrowers on the application, lenders then take the lowest middle score across all borrowers. That single number is what drives the rate and program eligibility for the entire loan.

This is a critical point. A co-borrower with a strong income but a lower credit score can result in a higher rate for everyone, even if the other borrowers have excellent credit.

Before applying, it is worth pulling each borrower’s credit reports, identifying any issues, and determining whether there is time to address them before submitting the application. Even a modest improvement in a lower score can have a meaningful impact on the rate the group qualifies for.

Lenders verify income and employment for every borrower on the application. The documentation required depends on how each person earns their income.

For salaried employees, this typically means recent pay stubs, W-2s from the past two years, and verification of current employment. For self-employed borrowers or those with variable income, lenders usually require two years of tax returns and may average income across that period.

All qualifying income from all borrowers is combined to determine how much the group can borrow. This is the primary financial advantage of buying together — pooled income can support a significantly larger loan than any one borrower could qualify for individually.

Lenders also look for consistency. A borrower who recently changed jobs, has gaps in employment, or has income that fluctuates significantly may require additional documentation or explanation.

Debt-to-income ratio, or DTI, is one of the primary factors lenders use to determine how much you can borrow. It compares your total monthly debt obligations to your gross monthly income.

In a joint TIC application, the lender looks at the combined income of all borrowers alongside the combined monthly debts. This includes existing obligations like car payments, student loans, credit card minimums, and any other recurring debt — plus the proposed new mortgage payment.

Most conventional loan programs allow a maximum DTI of around 45 percent, though this can vary depending on the strength of other factors in the application. FHA loans allow somewhat higher DTI ratios in some cases.

If one borrower carries significant existing debt, it can pull the group’s DTI higher and reduce the loan amount the group qualifies for. This is worth evaluating carefully before you apply, particularly if one co-borrower has large student loans, car payments, or other monthly obligations.

Lenders verify that the funds for the down payment and closing costs are available and properly sourced. Every dollar needs to be documented, whether it is coming from a savings account, the sale of another asset, or a gift from a family member.

In a TIC purchase where multiple owners are contributing different amounts toward the down payment, the lender will want to see documentation from each source. If one buyer is contributing significantly more than the others, that contribution needs to be traceable and explainable.

Lenders also look at reserves — funds remaining after the down payment and closing costs are paid. Having two to six months of mortgage payments in reserve strengthens the application and can offset weaker factors elsewhere in the file.

It is also important that the down payment contributions align with the ownership percentages in the TIC agreement. A mismatch between what each person contributed and what is documented on the deed can create complications during underwriting and questions from the lender.

One area where TIC buyers can get ahead of the process is document preparation. Because multiple borrowers are involved, each person needs to provide their own financial documentation. The good news is that knowing what is needed in advance makes this straightforward to manage.

When everyone in the group gathers their documents at the same time and submits them together, the application moves efficiently. Coordinating this upfront is one of the simplest ways to keep the process on track.

Here is what to prepare before you apply:

Here is what each borrower will typically need to provide:

• Government-issued photo ID
• Social Security number for credit authorization
• Two years of W-2s or 1099s
• Two years of federal tax returns, including all schedules
• Most recent 30 days of pay stubs
• Two to three months of bank statements for all accounts being used for the down payment and reserves
• Statements for any retirement or investment accounts
• Documentation of any other income sources, such as rental income, alimony, or child support
• A signed letter of explanation for any significant credit events, gaps in employment, or unusual deposits

Self-employed borrowers will want to allow a little extra lead time. In addition to the items above, lenders typically ask for profit and loss statements, business bank statements, and sometimes a CPA letter confirming the business is active. Because self-employed income is calculated using two years of net income after deductions, understanding how your income will be evaluated before you apply helps set accurate expectations.

The simplest approach is to treat this as a shared task. Set a time for the group to pull everything together, compile documents in parallel, and submit them to the lender at the same time. This keeps things moving smoothly and avoids any back-and-forth once the application is underway.

Giving yourself two to four weeks before you plan to apply is usually plenty of time to get everything in order. It also leaves room to address any questions the lender may have without creating pressure at the wrong moment.

Beyond the borrowers’ financial profiles, lenders also evaluate the property itself and how the TIC ownership is structured.

For a straightforward TIC purchase of a single-family home, most lenders treat the property evaluation the same as any other purchase. The appraisal process, title review, and property condition requirements are standard.

Multi-unit TIC purchases — such as those common in San Francisco and Los Angeles where buyers own individual units in a building that has not been converted to condominiums — require more scrutiny. Lenders evaluating these transactions will look at the TIC agreement carefully, review how the units are assigned, and assess whether the structure is consistent with their lending guidelines.

Some lenders will not finance multi-unit TIC purchases at all. Others specialize in them. Knowing which type of transaction you have before you start shopping for financing helps you find the right lender from the beginning.

In more complex TIC purchases, particularly multi-unit transactions, the lender may request a copy of the TIC agreement as part of underwriting.

Lenders want to confirm that the agreement is properly structured, that ownership percentages are clearly defined, and that there are provisions in place for how the property will be managed and what happens in default scenarios.

A well-drafted TIC agreement does not just protect the co-owners. It also gives lenders confidence that the ownership arrangement is sound, which can smooth the underwriting process.

For more on what a TIC agreement should include, see What Is a TIC Agreement and Do You Need One?

Just as a weaker co-borrower can create challenges, a stronger one can genuinely improve the application.

A co-borrower with high income can increase the total qualifying amount, allowing the group to purchase a more expensive property or carry a larger loan. Strong reserves from one borrower can offset limited savings from another. A long, stable employment history from one borrower can help balance a shorter track record from another.

The key is understanding the full picture of what each borrower brings to the application before you apply, so you can present the strongest possible file and anticipate any questions underwriting may raise.

Not every lender is equally equipped to handle a tenants in common purchase. The underwriting questions that come up in these transactions — how to document multiple borrowers, how to evaluate a TIC agreement, which programs are available for the property type — require experience that not all lenders have.

Working with someone who has handled TIC transactions before means fewer delays, fewer unexpected documentation requests, and a smoother path through underwriting.

If you are preparing for a TIC purchase and want to understand how your specific financial profile will be evaluated, we are here to help.

Lenders evaluate TIC purchases using the same core criteria as any mortgage — credit, income, debt, and assets. What makes these transactions more involved is the number of borrowers, the need to document contributions clearly, and in some cases the complexity of the property structure itself.

Going into the process with a clear picture of how your combined application will be evaluated gives you a real advantage. It lets you address potential issues before they become problems and positions you to move quickly when the right property comes along.