Is It Better to Be Married When Buying a House?

Whether it is better to be married when buying a house depends on how your credit, debts, and state law line up with your partner’s. Marriage opens the door to a stronger form of co-ownership, a larger capital gains exclusion when you sell, and automatic transfer of the home if one of you dies. It can also raise your interest rate or shrink your loan amount if one spouse has weaker credit or heavy debt, because lenders price a joint mortgage off the weaker profile.

How Marriage Changes What You Pay for the Mortgage

Applying jointly does not average your credit scores. When two spouses apply together, the lender pulls reports from Equifax, Experian, and TransUnion for each borrower, finds the middle score for each person, and then uses the lower of those two middle scores to price the entire loan.¹ A spouse at 780 paired with a spouse at 640 gets a mortgage priced at 640. Over a 30-year term, that gap can mean tens of thousands of dollars in extra interest, and a low enough representative score can push the couple into higher private mortgage insurance premiums, typically running from 0.5 percent to several percent of the loan balance per year until equity reaches 20 percent.

Debt works the same way. A joint application combines both spouses’ gross monthly income and both spouses’ recurring monthly debts into one debt-to-income ratio. For loans run through Fannie Mae’s automated underwriting, the maximum DTI is 50 percent. Manually underwritten conventional loans generally cap at 36 percent, stretching to 45 percent only if the borrower meets additional credit and reserve requirements.² A high-earning spouse who also carries large student loan or car payments can actually reduce the maximum loan amount the couple qualifies for.

The Community Property Wrinkle

Nine states follow community property rules: Arizona, California, Idaho, Louisiana, Nevada, New Mexico, Texas, Washington, and Wisconsin. In those states, FHA lenders must include a non-borrowing spouse’s debts in the DTI calculation even if only one spouse is on the loan.³ The non-borrowing spouse’s credit history itself is not grounds for denial, but their monthly obligations still count against qualifying ratios. Conventional lenders in these states may apply similar rules depending on investor guidelines. Couples in community property states should ask the lender up front whether leaving one spouse off the application actually removes that spouse’s debts from the math.

Tax Advantages That Only Married Buyers Get

The mortgage interest deduction itself is not better for married couples than for two unmarried co-buyers. Joint filers can deduct interest on up to $750,000 of acquisition debt, and a single filer gets the same $750,000 cap, so two unmarried co-buyers each claiming their share come out even. The real tax picture for married couples shows up in two other places.

Filing status matters. Married couples who file separately see the mortgage interest limit cut in half, to $375,000 each.⁴ For most married homeowners carrying a sizable loan, filing jointly is the better choice.

The capital gains exclusion when you sell your primary residence is where marriage pays off most visibly. A single filer can exclude up to $250,000 in gain. A married couple filing jointly can exclude up to $500,000, provided both spouses meet the ownership and use requirements, generally living in the home as a primary residence for at least two of the five years before the sale.⁵ In an appreciating market, the extra $250,000 of sheltered profit can be worth more than every other marriage-related housing benefit combined.

There is also a quiet advantage waiting at the end. When one spouse dies, the deceased spouse’s share of the home receives a stepped-up tax basis equal to its fair market value on the date of death. In the nine community property states, both halves receive the step-up, including the surviving spouse’s share.⁶ A home bought for $200,000 and worth $600,000 at the first spouse’s death gives the surviving spouse a new basis of $600,000 on the entire property in a community property state. Only appreciation above that figure would be taxable on a later sale.

How Marriage Changes the Way You Hold Title

How you hold title decides who owns what share, what happens to the home when one owner dies, and whether the house can be reached by one owner’s individual creditors. Married couples have access to a form of ownership that is simply not available to unmarried co-buyers.

Tenancy by the entirety is available only to married couples, and only in roughly 25 states and the District of Columbia. It treats both spouses as a single owner. A creditor with a judgment against just one spouse generally cannot force a sale or place a lien on the property; only joint creditors of both spouses can reach it. Ownership passes automatically to the surviving spouse at death.
Joint tenancy with right of survivorship is open to any two or more people. Owners hold equal shares, and the survivor inherits automatically, but either owner can unilaterally transfer their share and break the joint tenancy.
Tenants in common allows unequal shares, such as a 70/30 split, with no survivorship. A deceased owner’s share passes through their will or through probate.
Community property, in the nine community property states, presumes any home bought during the marriage is owned equally by both spouses regardless of whose name is on the deed or who paid.

Tenancy by the entirety is the strongest creditor protection available through titling alone, and it is a concrete legal advantage of being married when you buy. Unmarried co-buyers are limited to joint tenancy or tenants in common, and neither blocks a creditor from reaching one owner’s interest in the home.

Survivorship and Homestead Protection

Property held as tenancy by the entirety or joint tenancy with right of survivorship passes to the surviving spouse without probate. The survivor usually needs only a certified death certificate and a short affidavit filed with the county recorder to update the title. Without a survivorship deed or a marriage, a deceased owner’s share passes under their will, or under state intestacy rules if there is no will, which can leave a surviving co-owner sharing the home with the deceased person’s parents or siblings.

Homestead exemptions add another layer. Most states shield some portion of home equity from creditors, especially in bankruptcy, with protected amounts ranging from modest to unlimited depending on the state. The federal homestead exemption in bankruptcy protects up to $31,575 in equity for cases filed between April 2025 and March 2028, and married couples who file a joint bankruptcy can often each claim the exemption, roughly doubling the protected amount.

The Downside: What a Divorce Does to a Jointly Owned Home

Every advantage of joint ownership reverses if the marriage ends, and the mortgage creates problems that a divorce decree alone cannot fix.

Roughly 41 states use equitable distribution, where a judge divides marital property based on what is fair given the length of the marriage, each spouse’s earning capacity, financial and non-financial contributions, and each spouse’s situation after the divorce. The split is not necessarily 50/50. The nine community property states presume an equal division. In either system, the family home is often the largest marital asset, and the court may order a buyout or a sale with proceeds divided. A spouse who contributed little or nothing financially to the purchase can still receive a significant share, or even the whole house, depending on how the court weighs the factors.

A Quitclaim Deed Does Not Remove You From the Mortgage

This is the mistake that haunts divorcing homeowners. A quitclaim deed transfers one spouse’s ownership interest to the other, but it does not remove the transferring spouse from the mortgage note. Both spouses stay legally liable for the loan until it is refinanced into one name or paid off.⁷ A divorce decree that assigns the house and the payment to one spouse does not bind the lender. If the spouse keeping the house stops paying, the lender can still pursue the other spouse for the full balance, and the missed payments will show on both credit reports.

Refinancing into one spouse’s name is the cleanest fix, but only if that spouse can qualify alone. Some loans allow an assumption, but the assuming spouse still has to meet the lender’s underwriting standards before the departing spouse is released from liability.⁷

Two federal protections soften the mechanics of a divorce transfer. The Garn-St. Germain Act prevents a lender from triggering a due-on-sale clause when a home is transferred to a spouse as part of a divorce, legal separation, or property settlement.⁸ And transfers of property between spouses, or to a former spouse within one year of the divorce or as part of the settlement, are treated as tax-free events; the receiving spouse takes over the original basis.⁹

When a Married Person Should Apply Alone

Being married does not force you to apply jointly. If one spouse has a significantly lower credit score, keeping that spouse off the loan means the lender prices the mortgage on the applying spouse’s score alone, which can meaningfully lower the interest rate. If one spouse carries debts that would push the combined DTI past qualifying thresholds, a solo application from the lower-debt spouse may unlock a larger loan.

The cost is that only the applying spouse’s income counts, so borrowing power drops if that income alone is not enough. In community property states, the FHA rule about including a non-borrowing spouse’s debts can erase part of the benefit of applying alone.³ One spouse can also be on the mortgage without being on the deed, or on the deed without being on the mortgage. Lenders have preferences about this, and the titling choice carries its own consequences for ownership, creditor exposure, and survivorship, so decide the loan question and the title question together rather than as an afterthought.

1
Fannie Mae. Loan Delivery Job Aids – Credit Scores
2
Fannie Mae. B3-6-02 Debt-to-Income Ratios
3
U.S. Department of Housing and Urban Development. FHA Single Family Housing Policy Handbook 4000.1
4
Internal Revenue Service. Publication 936 – Home Mortgage Interest Deduction
5
Office of the Law Revision Counsel. 26 USC 121 – Exclusion of Gain From Sale of Principal Residence
6
Internal Revenue Service. Publication 551 – Basis of Assets
7
Consumer Financial Protection Bureau. Homeowners Face Problems With Mortgage Companies After Divorce or Death of a Loved One
8
Office of the Law Revision Counsel. 12 USC 1701j-3 – Preemption of Due-on-Sale Prohibitions
9
Office of the Law Revision Counsel. 26 USC 1041 – Transfers of Property Between Spouses or Incident to Divorce