Buying a Home With an Unmarried Co-Borrower

Want to see what you qualify for? I can run your numbers and give you a clear answer quickly.

Buying a Home With an Unmarried Co-Borrower

Buying a home with an unmarried co-borrower allows two or more people to combine their income, assets, and credit profiles when applying for a mortgage.

Unmarried co-borrowers may include:

Unmarried partners
Engaged couples
Relatives
Siblings
Parent and adult child
Friends
Business partners purchasing an eligible residence together

Unmarried borrowers generally have access to the same mortgage opportunities as married joint applicants.

The Consumer Financial Protection Bureau confirms that unmarried individuals can apply jointly for a mortgage and cannot be treated differently merely because they are unmarried.

But qualifying for the loan is only one part of the decision.

Before closing, the buyers should also determine:

Who will hold title
Ownership percentages
Down-payment contributions
Responsibility for monthly expenses
What happens if the relationship ends
How one borrower can buy out the other
What happens if someone dies
Whether survivorship rights exist
How the home will be sold
How mortgage liability can be removed

A lender can help structure the mortgage. A Texas attorney may be needed to structure the ownership relationship.

What Is an Unmarried Co-Borrower?

An unmarried co-borrower is someone who jointly applies for the mortgage without being married to the other borrower.

Each co-borrower generally:

Completes a mortgage application
Authorizes a credit report
Provides income documentation
Discloses assets
Discloses liabilities
Signs the promissory note
Accepts responsibility for repayment
May hold title to the property
May occupy the property

The borrowers’ qualifying financial profiles are evaluated together.

This can increase purchasing power, but it also ties each person to the entire mortgage obligation.

Both Borrowers Are Responsible for the Entire Mortgage

Joint mortgage liability is not normally divided according to:

Income
Ownership percentage
Down-payment contribution
Bedroom use
Private payment arrangements
Who normally pays the mortgage

If both borrowers sign the note, each may be responsible for the full debt.

For example:

Borrower A owns 60%.
Borrower B owns 40%.
Both sign the mortgage note.

The lender is not necessarily limited to collecting 60% from Borrower A and 40% from Borrower B.

The ownership percentages may control equity between the parties, but both note signers remain responsible under the mortgage contract.

Combining Income for Mortgage Qualification

The lender may combine eligible income from both co-borrowers.

Potential income sources include:

Salary
Hourly income
Overtime
Bonuses
Commission income
Self-employment income
Retirement income
Social Security
Disability income
Military income
Rental income
Interest and dividends
Trust income
Other eligible recurring income

Every income source must still satisfy the selected mortgage program’s documentation requirements.

Adding a second borrower does not make otherwise ineligible income acceptable.

The income must generally be:

Stable
Verifiable
Properly calculated
Likely to continue
Permitted by the loan program

Both Borrowers’ Debts Are Included

Combining income also means combining liabilities.

The lender may include each borrower’s:

Auto loans
Student loans
Credit-card minimum payments
Personal loans
Existing mortgage payments
Co-signed debts
Child support
Alimony
Tax-payment plans
Business obligations
Other recurring liabilities

One borrower may have higher income but also substantially more debt.

The lender must evaluate whether adding that person improves or weakens the overall application.

Review Co-Signed Debts and Mortgage Qualification and Contingent Liabilities and Mortgage Approval.

Text a Question

If you want help walking through your specific situation, I can run the numbers with you.

Get Pre-Approved

How Credit Scores Affect the Joint Mortgage

The lender reviews the credit history of every co-borrower.

Mortgage eligibility and pricing may be affected by:

Representative credit scores
Applicable loan-program scoring method
Mortgage payment history
Recent late payments
Credit utilization
Collections
Charge-offs
Bankruptcy or foreclosure
Credit disputes
Recent inquiries

A borrower with excellent income but weaker credit may cause:

Higher interest-rate pricing
Increased mortgage insurance
Lower maximum financing
Automated underwriting problems
Additional documentation
Reduced lender options

The stronger borrower’s credit does not erase the weaker borrower’s history.

Before applying jointly, compare:

Joint qualification
One borrower qualifying alone
Joint ownership with one mortgage borrower, when permitted
Waiting to improve credit
Purchasing a less expensive property
Using another mortgage program

Review How Credit Scores Affect Mortgage Approval.

Can One Person Apply for the Mortgage Alone?

Possibly.

One partner may qualify for the mortgage without using the other person’s income or credit.

Possible reasons include:

One borrower has significantly stronger credit.
One borrower has high debts.
One borrower recently changed employment.
One borrower is newly self-employed.
One borrower has unresolved credit problems.
One borrower’s income is unnecessary.
Including both borrowers worsens pricing or underwriting.

The buyers must then separately decide:

Who will hold title
Whether the non-borrower will receive ownership
Whether the loan program allows the intended structure
Who will sign the deed of trust
How funds from the non-borrower may be used
How the arrangement affects insurance and future refinancing

Review Being on Title but Not the Mortgage in Texas and Being on the Mortgage but Not the Title in Texas.

One Borrower Occupying the Home

When multiple borrowers apply for a conventional primary-residence mortgage, every borrower may not necessarily need to occupy the property.

Fannie Mae’s occupancy guidelines generally require at least one borrower to occupy and take title on a principal-residence transaction, subject to the rules governing co-signers and non-occupant borrowers.

This can be useful when:

An unmarried partner works in another city.
One borrower will relocate later.
A parent helps an adult child.
One borrower travels extensively.
Siblings purchase for one sibling’s occupancy.

The stated occupancy must reflect the actual plan.

Review Primary Residence Mortgage Requirements and Mortgage Occupancy Fraud Explained.

Unmarried Co-Borrower vs. Mortgage Co-Signer

An unmarried co-borrower typically:

Signs the note
Accepts mortgage liability
May live in the property
May appear on title
May receive an ownership interest

A mortgage co-signer generally:

Signs the note
Accepts mortgage liability
Does not occupy the property
Does not hold title
Does not automatically receive equity

If both people intend to own and occupy the property, a co-borrower structure usually describes the relationship more accurately than a co-signer structure.

Review Mortgage Co-Signers Explained.

Unmarried Co-Borrower vs. Non-Occupant Co-Borrower

A non-occupant co-borrower applies for the mortgage but does not live in the property.

They may or may not hold title, depending on the program.

This structure may apply when:

Parent helps an adult child.
Adult child helps a parent.
Sibling helps another sibling.
Partner will maintain a separate residence.
Another eligible person contributes income.

If both unmarried borrowers will live in the home, they are generally occupant co-borrowers rather than non-occupant co-borrowers.

See Non-Occupant Co-Borrowers and Mortgage Qualification.

How Should Unmarried Buyers Hold Title?

Title determines legal ownership.

Common Texas vesting structures may include:

Sole ownership
Tenancy in common
Co-ownership with an enforceable survivorship agreement
Trust ownership when eligible
Another attorney-approved structure

The correct form depends on:

Relationship
Ownership percentages
Estate plan
Down-payment contributions
Expected use
Future sale plans
Mortgage requirements

The buyers should decide whether ownership will be:

50% and 50%
Based on down-payment contributions
Based on ongoing payment responsibilities
Structured another way through legal agreement

Review Vesting on Title: How Homeownership Can Be Structured.

Tenancy in Common

Unmarried Texas buyers frequently hold property as tenants in common.

Each owner holds an undivided interest in the entire property.

Ownership interests may be:

Equal
Unequal
Transferable, subject to applicable agreements
Passed through the owner’s estate
Subject to the owner’s creditors

For example:

Borrower A owns 70%.
Borrower B owns 30%.

Both may have rights involving the entire property even though their economic interests differ.

The deed and co-ownership agreement should accurately reflect the intended arrangement.

Ownership Percentages and Mortgage Liability Are Different

Suppose one buyer provides the entire down payment, while both borrowers make equal monthly mortgage payments.

Possible ownership structures might include:

Equal ownership
Ownership based on the down payment
Ownership based on total contributions
Another negotiated allocation

The lender does not decide which arrangement is fairest.

Whatever ownership percentages are selected, every note signer may remain responsible for the entire mortgage.

A 30% owner is not necessarily responsible for only 30% of the loan.

Equal Ownership With Unequal Contributions

Unmarried buyers often take title equally even when one person contributes substantially more money.

That may be intentional.

It may also create later disputes.

Before closing, decide whether the larger contribution is:

A gift
A loan
A basis for greater ownership
Reimbursable before dividing future equity
Simply part of the parties’ shared arrangement

Without documentation, the parties may remember the agreement differently years later.

A lender can document the source of mortgage funds but does not create the legal agreement governing equity between co-owners.

Down-Payment Contributions

When both individuals are mortgage borrowers, eligible assets belonging to either borrower may generally be considered for the transaction, subject to program requirements.

The lender may verify:

Ownership of each account
Account history
Large deposits
Transfers
Liquidation of investments
Source of earnest money
Borrowed funds
Business funds
Gift funds

The buyers should separately document how contributions affect ownership and reimbursement rights.

Mortgage underwriting determines whether the funds are eligible.

It does not determine who should receive those funds back after a future sale.

Review Source of Funds Requirements for a Mortgage and Documenting Earnest Money for Mortgage Approval.

Gift Funds Between Unmarried Partners

Gift eligibility depends on:

Loan program
Relationship
Whether both parties are borrowers
Donor eligibility
Documentation
Whether repayment is expected

If both people are borrowers, funds held by either borrower may not need to be treated as a gift in the same way funds from an outside donor would be.

If only one person is the mortgage borrower, funds from the non-borrowing partner must be reviewed under the selected program’s gift and asset rules.

Do not describe funds as a gift if repayment or future ownership is expected.

Review Mortgage Gift Fund Requirements.

Should Unmarried Buyers Have a Co-Ownership Agreement?

A co-ownership or cohabitation agreement can establish how the property will be handled between the parties.

The CFPB specifically recommends that unmarried joint applicants consider a cohabitation agreement addressing future property division and financial disputes.

A Texas attorney may help the buyers address:

Ownership percentages
Down-payment contributions
Mortgage payments
Property taxes
Insurance
HOA dues
Utilities
Repairs
Improvements
Use of the home
Rental activity
Default by one party
Sale
Buyout
Death
Disability
Breakup
Dispute resolution

The deed alone may not answer all of these questions.

What Should the Agreement Say About Monthly Payments?

The agreement may address:

Who pays the lender
Whether payments are equal
Whether payments follow income percentages
How escrow shortages are divided
Responsibility for late fees
What happens after income loss
How missed contributions are treated
Whether additional payments create additional equity
How principal reduction is allocated
Whether one party can advance funds for the other

The mortgage lender expects the payment regardless of private arrangements.

If one borrower fails to contribute, the other borrower may need to make the entire payment to protect both borrowers’ credit.

What About Repairs and Improvements?

Homeownership involves more than the mortgage payment.

The parties should consider:

Routine maintenance
Emergency repairs
Appliance replacement
HVAC
Roof
Foundation
Insurance deductibles
Renovations
Landscaping
Furniture
Capital improvements

If one owner pays $50,000 for a renovation, does that person:

Receive a larger ownership interest?
Receive reimbursement at sale?
Treat it as a gift?
Expect the other owner to repay half?

Those expectations should be documented before the money is spent.

What Happens if the Relationship Ends?

A breakup does not automatically remove either person from:

Title
Mortgage
Deed of trust
Homeowners insurance
Property taxes
HOA obligations

Possible outcomes include:

Sell the home.
One owner buys out the other.
One borrower refinances.
Both temporarily continue ownership.
One person moves out while remaining liable.
A court resolves the ownership dispute.

Moving out does not surrender ownership.

It also does not remove mortgage liability.

How Can One Borrower Buy Out the Other?

A buyout usually requires determining:

Current property value
Current mortgage balance
Net equity
Ownership percentages
Reimbursement claims
Selling-cost assumptions
Repair expenses
Existing liens

For example:

Property value: $500,000
Mortgage balance: $380,000
Gross equity: $120,000

That does not automatically mean each owner receives $60,000.

The final calculation may depend on:

Deed ownership
Written agreement
Unequal contributions
Outstanding expenses
Appraisal
Legal rights
Negotiated settlement

The remaining borrower may also need to refinance or obtain an approved assumption to release the departing borrower from the mortgage.

A Deed Transfer Does Not Remove the Mortgage

One owner may sign a deed transferring ownership to the other.

That changes title.

It does not automatically remove the departing person from the mortgage note.

The departing borrower may remain liable until the mortgage is:

Refinanced
Sold and paid off
Assumed with a formal release
Paid in full
Otherwise modified with lender approval

Review Being on the Mortgage but Not the Title in Texas.

Can One Borrower Force a Sale?

A co-owner may have legal remedies when the other owner refuses to sell or buy them out.

The exact rights and procedures depend on:

Title
Written agreements
Property use
Ownership percentage
Texas law
Other facts

Litigation can be expensive and disruptive.

A well-drafted agreement can establish:

When a sale can be required
How value is determined
Time allowed for a buyout
How the property is listed
How offers are accepted
Who pays selling expenses
How proceeds are distributed

Legal advice should be obtained before the dispute develops.

What Happens if One Borrower Stops Paying?

The lender still expects the full payment.

The other borrower may need to cover:

Mortgage
Taxes
Insurance
HOA dues
Utilities
Repairs

If the payment becomes late, both borrowers’ credit may be damaged.

The paying borrower does not automatically gain a larger ownership percentage merely because they covered the other person’s share.

A written agreement may create:

Reimbursement rights
Default interest
Equity adjustments
Buyout rights
Forced-sale provisions

Without an agreement, resolving the imbalance may require negotiation or legal action.

What Happens if One Borrower Files Bankruptcy?

One borrower’s bankruptcy can affect:

Mortgage
Ownership interest
Sale
Refinance
Collection
Automatic stay
Creditor claims
Future title transfers

Even if the other borrower continues making payments, the bankruptcy can complicate disposition of the property.

Both parties should understand each other’s financial condition before purchasing together.

What Happens if One Borrower Dies?

The mortgage remains attached to the property.

The deceased owner’s interest may pass according to:

Survivorship agreement
Will
Trust
Transfer-on-death deed
Intestacy
Probate

If no survivorship structure exists, the surviving co-owner may find themselves owning property with:

Deceased partner’s children
Parents
Siblings
Estate
Other heirs

The surviving borrower may also become responsible for maintaining the entire mortgage payment.

Right of Survivorship in Texas

Unmarried co-owners should not assume that both names on the deed automatically create survivorship.

In Texas, survivorship generally requires properly drafted and executed documentation satisfying applicable law.

Without survivorship, the deceased owner’s interest may pass through their estate.

The buyers should coordinate:

Deed
Survivorship agreement
Wills
Trusts
Beneficiary planning
Life insurance
Co-ownership agreement

Review Vesting on Title: How Homeownership Can Be Structured.

Life Insurance and the Mortgage

Life insurance may be worth considering when both incomes are needed to make the payment.

Questions include:

How much mortgage balance should be protected?
Who owns the policy?
Who is the beneficiary?
Should proceeds pay off the mortgage?
Should they fund a buyout from heirs?
Does the surviving owner have enough income to qualify for a refinance?
Will there be other estate obligations?

Life insurance does not change ownership automatically.

It may provide liquidity to preserve the home or complete a buyout.

Estate Planning for Unmarried Co-Borrowers

Unmarried buyers do not automatically receive all the inheritance protections people often associate with marriage.

They should consider:

Will
Trust
Survivorship agreement
Transfer-on-death deed
Powers of attorney
Medical directives
Life insurance
Beneficiary designations
Instructions for mortgage payments
Buyout provisions

Estate planning should match the deed and co-ownership agreement.

Conflicting documents can create additional disputes.

Texas Common-Law Marriage

Texas recognizes an informal—or common-law—marriage when legal requirements are established.

Texas Law Help explains that an informal marriage can generally arise when the parties:

Agree to be married
Live together in Texas as a married couple
Represent to others that they are married

All required elements matter.

Living together for a particular number of years does not automatically create a common-law marriage.

An informal marriage can affect:

Community property
Divorce
Homestead rights
Inheritance
Title
Mortgage disputes

Couples should answer marital-status questions accurately.

Review Texas Law Help’s common-law marriage guide or consult a Texas attorney if the legal status is unclear.

Unmarried Buyers vs. Informally Married Buyers

Two people may describe themselves as unmarried while their conduct raises a question about informal marriage.

Examples include:

Filing documents as spouses
Introducing each other as married
Sharing a last name
Signing contracts as husband and wife
Claiming marital benefits
Recording a declaration of informal marriage

The mortgage application, title documents, insurance, and legal status should be consistent.

A lender should not decide whether an informal marriage legally exists without proper documentation or legal review.

Homeowners Insurance

The insurance policy should identify:

Legal owners
Occupants
Mortgage lender
Property use
Additional insureds
Other required interests

Both owners should understand:

Who receives claim payments
Who controls repairs
Deductible responsibility
Personal-property coverage
Liability coverage
Temporary housing coverage
What happens if one person moves out

Review Homeowners Insurance Problems That Can Stop a Mortgage.

Texas Homestead Exemption

Unmarried co-owners who occupy the home may have questions about Texas residence homestead exemptions.

Eligibility can depend on:

Ownership
Principal-residence occupancy
Filing requirements
Other homesteads claimed
Applicable tax rules
Ownership percentage

Mortgage occupancy and property-tax homestead requirements are separate.

Both must accurately reflect how the home is used.

Future Refinancing

A future refinance may require both owners’ cooperation.

The lender may need:

New loan application
Credit and income review
Title verification
Ownership documents
Deed of trust signatures
Appraisal
Payoff of the existing mortgage
Buyout documentation
Source of funds

Possible refinance structures include:

Both borrowers remain.
One borrower qualifies alone.
One owner transfers title.
Cash-out proceeds fund a buyout.
Ownership percentages change.
Property transfers to an eligible trust.

Do not assume one person can refinance and remove the other without their participation.

Future Mortgage Qualification for Each Borrower

The joint mortgage may appear on both borrowers’ credit reports.

If one borrower later wants to buy another home, the lender may include the full existing mortgage payment.

Possible exclusion may require evidence that the other borrower has independently made the payments for the applicable period.

The future lender may request:

Mortgage payment history
Bank statements
Canceled checks
Evidence of payment source
Documentation of property ownership
Lease agreement when applicable

Review Co-Signed Debts and Mortgage Qualification.

Real Unmarried Co-Borrower Scenarios

Unmarried Partners Contribute Equally

Both borrowers provide half the down payment, make equal mortgage payments, and take equal title.

They still create a written agreement covering breakup, sale, death, buyout, and major repairs.

One Partner Provides the Down Payment

One borrower contributes $100,000 while the other contributes $10,000.

They take title equally without documenting whether the additional contribution is a gift or reimbursable.

A future sale creates disagreement over how equity should be divided.

Stronger Borrower Applies Alone

One partner has strong income and credit.

The other has recent late payments.

The stronger partner obtains the mortgage alone, while both take title when permitted.

The title-only partner signs the deed of trust but not the note.

Friends Purchase Together

Two friends purchase a home to occupy jointly.

Both qualify and hold title.

Several years later, one receives a job transfer.

Their agreement establishes an appraisal-based buyout process, preventing a dispute.

Siblings Buy for One Sibling’s Occupancy

Two siblings apply together, but only one will occupy the home.

The transaction may use a non-occupant co-borrower structure, subject to program requirements.

Both must understand the mortgage, title, and future borrowing implications.

Relationship Ends, but Refinance Is Impossible

One owner wants to keep the home but cannot qualify alone.

The other moves out but remains on the mortgage and title.

They may need to sell, continue temporary joint ownership, or pursue another negotiated solution.

One Partner Dies Without Survivorship Planning

Both partners own the property as tenants in common.

One dies without a survivorship agreement or will.

The surviving partner now co-owns the home with the deceased partner’s heirs while remaining responsible for the mortgage.

Common Problems

Buying a home with an unmarried co-borrower can become difficult when:

Ownership percentages were never discussed.
One person contributes most of the cash.
Payment responsibilities are informal.
One borrower has significantly weaker credit.
One person wants to move out.
One borrower stops paying.
Refinance is unavailable.
One person refuses to sell.
Major repairs create disagreements.
A borrower dies without estate planning.
Survivorship was assumed but not created.
Informal marriage status is unclear.
One owner has creditor problems.
No buyout process exists.
The parties assume the deed and mortgage are interchangeable.

Common Misconceptions

“Unmarried Couples Cannot Apply Jointly.”

Unmarried individuals can apply jointly for a mortgage.

They may not be treated differently merely because they are unmarried.

“The Person With the Higher Income Controls the Home.”

Income used for qualification does not determine legal ownership.

The deed and ownership agreements determine property rights.

“We Each Owe Half the Mortgage.”

Each borrower signing the note may be responsible for the entire debt.

“Moving Out Removes Me From the Loan.”

Moving out does not change title or mortgage liability.

“Signing a Deed Removes Me From the Mortgage.”

A deed changes ownership, not the promissory note.

“Both Names on the Deed Create Automatic Survivorship.”

Texas survivorship generally requires proper written documentation.

“The Person Who Pays More Automatically Owns More.”

Additional contributions do not necessarily change the recorded ownership percentage.

“Living Together Long Enough Automatically Creates a Marriage.”

Texas informal marriage does not arise solely from living together for a particular period.

Required legal elements must be established.

Real Lender Perspective

Unmarried co-borrowers can qualify for the same strong mortgage options as married borrowers.

The mortgage itself is usually the easiest part.

The harder questions are:

Who owns what?
Who contributes what?
Who pays for repairs?
What happens after a breakup?
How is a buyout calculated?
What happens if one borrower cannot refinance?
Who inherits the ownership interest?
Can the surviving owner afford the mortgage?
What happens if one person stops paying?

The lender can establish that both borrowers qualify and are jointly responsible for the note.

The lender does not create the agreement that protects the buyers from each other—or from future uncertainty.

The best transactions combine sound mortgage planning with clear legal ownership and an agreed exit strategy.

Questions to Ask Before Buying Together

Before signing a purchase contract, ask:

Will both people be mortgage borrowers?
Will both people hold title?
What ownership percentages will apply?
Who is providing the down payment?
Is any contribution a gift or loan?
How will mortgage payments be divided?
Who pays taxes, insurance, and HOA dues?
How will repairs be approved and funded?
What happens if one person loses income?
What happens if the relationship ends?
Can one person buy out the other?
How will the property be valued?
What if refinancing is unavailable?
Can either person require a sale?
What happens if one borrower dies?
Has survivorship been established?
Is life insurance appropriate?
Is a common-law marriage possible?
Has a Texas attorney reviewed the arrangement?

Who This Guide Is For

This guide may be especially helpful for:

Unmarried couples
Engaged couples
Friends buying together
Siblings
Parents and adult children
Domestic partners
First-time homebuyers
Buyers contributing unequal amounts
Borrowers with different credit profiles
Non-occupant co-borrowers
Texas common-law couples
Anyone considering joint homeownership outside marriage

Final Thoughts

Buying a home with an unmarried co-borrower can combine income, assets, and credit to create stronger mortgage qualification.

It also creates shared responsibility for a major debt and shared ownership of a valuable asset.

Before closing, the buyers should establish:

Mortgage liability
Title ownership
Ownership percentages
Down-payment treatment
Payment responsibilities
Repair obligations
Buyout procedures
Sale rights
Death and disability planning
Survivorship
Exit strategy

Each borrower may be responsible for the entire mortgage even when ownership or contributions are unequal.

Moving out does not remove a borrower.

Transferring title does not automatically remove mortgage liability.

Joint ownership does not necessarily create survivorship in Texas.

The strongest arrangement is one that works not only while the relationship is healthy, but also if employment, finances, health, housing needs, or the relationship itself changes.