# Dentist Mortgage With a Practice Loan: DTI Rules (2026)

> Dentist mortgage practice loan guide: when practice debt can be excluded from DTI, how S-corp income is calculated, and what to send. Get a free review.

Canonical: https://www.masalaloans.com/blog/dentist-mortgage-practice-loan
Author: Apurva Sanghavi
Published: 2026-10-17T18:14:24.411Z
Tags: mortgage, Small business, home buying, personal finance

**Quick answer (updated October 2026):** In a dentist mortgage, a practice loan that shows on your personal credit can be excluded from your debt-to-income ratio if your practice has paid it for at least 12 months from company funds, it has no late payments, and the lender's cash-flow analysis of the business accounts for it. If any of those fail, the full payment counts against you.

You bought a practice in Sugar Land three years ago with a $1.2 million acquisition loan. Collections are strong, your S-corp pays you a salary, and you're ready to move your family out of the townhome. Then a lender pulls credit, sees a $14,500 monthly payment in your name, and tells you that you "don't qualify."

That lender may be reading the file wrong. This guide shows how underwriters treat practice acquisition debt, how S-corp income is calculated, and why owners and associates are underwritten so differently.

## Associate vs. owner: two different files

Before anything else, figure out which kind of borrower you are.

| **Your situation** | **How lenders see you** | **Key documents** |
| --- | --- | --- |
| W-2 associate | Salaried or commission W-2 employee | Paystubs, 2 years W-2s, VOE |
| 1099 associate | Self-employed (Schedule C) | 2 years personal returns |
| Owner, less than 25% | W-2 employee of the practice (with extra checks) | W-2s, returns showing ownership under 25% |
| Owner, 25% or more | Self-employed | 2 years personal + business returns (1120S or 1065) |

Fannie Mae's Selling Guide (B3-3.2-01) treats anyone with **25% or greater ownership** as self-employed. Once you cross that line, the lender stops looking only at your W-2 and analyzes the business itself.

W-2 associates have the easiest path. Many physician mortgage programs also include dentists (DDS/DMD), though eligibility, especially for visa holders, varies by lender; see [physician loans for IMGs on H-1B](https://www.masalaloans.com/blog/physician-loan-h1b) for how those programs work.

## Practice acquisition debt and your mortgage DTI

Most practice loans are made to the business entity with a personal guarantee. Whether that loan touches your DTI depends first on whether it appears on your personal credit report.

### If the practice loan is in the business's name only

If it doesn't report on your personal credit, it usually isn't added to your personal DTI. Its cost still matters, because interest is an expense on the business return and lowers the income the lender can use.

### If the practice loan reports on your personal credit

This is where the Fannie Mae rule (B3-6-05, current as of October 2026) applies. A business debt in your name can be left out of DTI only when all three conditions are met:

1. **The business pays it.** Acceptable evidence includes 12 months of canceled company checks or business bank statements showing the payment.

2. **No delinquency.** The account can't have a history of late payments.

3. **Cash flow accounts for it.** The lender's analysis of the business return must reflect the obligation.

Miss any one and the payment goes into your DTI. That's why a dentist who bought a practice eight months ago often can't exclude the loan yet: there aren't 12 months of business payments to show.

## How lenders calculate dentist S-corp income

For an owner with 25% or more, the lender typically uses Fannie Mae's cash-flow analysis (Form 1084 or the lender's equivalent). In plain terms:

- **W-2 wages** the S-corp pays you

- **plus K-1 ordinary income**, if supported by distribution history or adequate business liquidity

- **plus non-cash add-backs** from the 1120S, such as depreciation and amortization

- **minus** items like short-term notes payable (due in under a year) shown on the business return

The amortization add-back matters for dentists. When you buy a practice, much of the price is goodwill, which is amortized over years on the business return. That deduction lowers taxable income but isn't a cash expense, so it gets added back. Many dentists don't realize their qualifying income is higher than their taxable income.

We cover K-1 rules in more depth in [K-1 income and mortgage qualifying](https://www.masalaloans.com/blog/k1-income-partnership-mortgage-qualifying), and the full add-back list in [Schedule C add-backs for qualifying income](https://www.masalaloans.com/blog/schedule-c-add-backs-mortgage-qualifying-income).

**Talk to a loan officer who's seen this before:** Send us your last two 1120S returns, K-1s and your practice loan statement, and we'll run a free self-employed income analysis showing whether your practice debt can be excluded. [Book a call](https://www.masalaloans.com/contact).

## Worked example: excluded vs. counted

An illustration only. Dr. Priya Patel owns 100% of a dental practice she bought in 2023. Her practice loan payment is $14,500 per month and appears on her personal credit report. She wants a $900,000 home in Frisco with 20% down.

**Her income (2-year average, simplified):**

| **Item** | **Annual** |
| --- | --- |
| W-2 wages from S-corp | $180,000 |
| K-1 ordinary income | $95,000 |
| Amortization add-back | $80,000 |
| Depreciation add-back | $45,000 |
| **Qualifying income** | **$400,000 ($33,333/mo)** |

**Her new mortgage:** $720,000 loan. At the Freddie Mac weekly average of **7.40%** for a 30-year fixed (Oct 15, 2026; illustration only, not a quote or offer), principal and interest is about **$4,985 per month**. With Frisco-area property taxes, possible PID or MUD assessments and insurance, assume about $6,600 total. (Taxes in master-planned communities vary a lot; see [PID vs MUD in Frisco and Prosper](https://www.masalaloans.com/blog/pid-vs-mud-frisco-prosper).) Add a $900 car payment.

| **Scenario** | **Monthly debts** | **DTI** |
| --- | --- | --- |
| Practice loan **excluded** (12+ months paid by business, no lates) | $7,500 | **~22.5%** |
| Practice loan **counted** | $22,000 | **~66%** |

Fannie Mae's DU caps DTI at 50%. Same dentist, same house: one version is a strong approval, the other a decline. The difference is 12 months of business bank statements.

## Common dentist mortgage problems (and fixes)

- **Practice bought less than 12 months ago.** You can't show 12 months of business payments yet. Options: wait, add a co-borrower, or look at programs that analyze bank statements instead of tax returns.

- **Less than two years of ownership.** Fannie Mae can accept a shorter self-employment history if your most recent return shows a full 12 months in the current business and you earned similar income in the field before. Our guide to [getting a mortgage with less than two years self-employed](https://www.masalaloans.com/blog/mortgage-less-than-two-years-self-employed) explains it.

- **Paying the practice loan from your personal account.** Even once, this muddies the 12-month trail. Pay business debts from business accounts.

- **Equipment leases in your name.** Fannie Mae counts lease payments as recurring debts regardless of months remaining, unless they qualify as business debt under the same three-part test.

- **Low K-1 because of a big equipment year.** Section 179 or bonus depreciation lowers taxable income, but depreciation is an add-back, so ask your lender to show the math.

## Dental practice owner home loan checklist

- Two years of personal returns (1040) with all schedules

- Two years of business returns (1120S or 1065) and K-1s

- Year-to-date profit and loss statement, if the lender requires one

- Practice loan statement and note

- 12 months of business bank statements showing practice loan payments

- Equipment lease agreements

- Two months of personal bank statements for down payment and reserves

## What the rules actually say

- **Fannie Mae Selling Guide B3-6-05 (08/05/2026):** a business debt in the borrower's name may be excluded if the business provides acceptable evidence it was paid from company funds (such as 12 months of canceled company checks), the account has no delinquency history, and the lender's cash-flow analysis considered it.

- **Fannie Mae Selling Guide B3-3.2-01 (12/13/2023):** a borrower with 25% or greater ownership is self-employed; a two-year earnings history is generally required, with a shorter history possible when the most recent return shows 12 months of income from the current business.

- **Fannie Mae Selling Guide B3-6-02:** maximum DTI of 50% for DU loan casefiles.

- **Fannie Mae Selling Guide B3-6-05:** lease payments count as recurring debts regardless of months remaining.

## Frequently Asked Questions

**Q: Does my dental practice loan count against my mortgage DTI?**<br />A: Only if it's on your personal credit and doesn't meet the business-debt test. If your practice has paid it from company funds for 12 months, it has no late payments and the business cash flow reflects it, Fannie Mae allows the lender to leave it out of your DTI.

**Q: Can I get a mortgage the year I buy a dental practice?**<br />A: It's harder. You may lack 12 months of business payments on the practice loan and a full year of income from the new practice on your tax return. A W-2 associate history in the same field helps. Some buyers close on their home before the practice purchase.

**Q: How do lenders calculate income for a dentist with an S-corp?**<br />A: Typically W-2 wages from the S-corp, plus K-1 income when supported by distributions or business liquidity, plus non-cash add-backs like depreciation and amortization from the 1120S. Practice goodwill amortization can raise your qualifying income well above taxable income.

**Q: Is a dentist eligible for a physician loan?**<br />A: Often, yes. Many physician mortgage programs include DDS and DMD borrowers, but each lender defines eligible professions and residency rules. Visa holders should confirm eligibility in writing, since many programs restrict non-permanent residents.

**Q: What if I'm a 1099 associate dentist?**<br />A: Lenders treat 1099 associates as self-employed, using Schedule C income from your tax returns, usually for two years. Business expenses reduce qualifying income, though depreciation and some other items can be added back.

## Get your practice-owner income analysis in 15 minutes

Send your 1120S returns, K-1s and practice loan statement, and we'll run a free self-employed income analysis: your qualifying income with add-backs, whether your practice debt can be excluded, and which of our 150+ wholesale lenders fit your file. We're licensed nationwide and work with dentist and physician owners regularly. Book a free 15-minute call at /contact, start your application at /apply, or call 713-366-4668.

*Masala Loans is a brand of Matador Lending, LLC (NMLS #2072896). Written by Apurva Sanghavi, President, NMLS #227127. Equal Housing Opportunity. This article is general education, not tax, legal or immigration advice — consult a qualified CPA, attorney or immigration lawyer for your situation. Program availability, rates and terms vary by lender and borrower and are subject to change; not a commitment to lend.*