Texas Home Equity 80% Combined LTV Rule

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Texas Home Equity 80% Combined LTV Rule

The Texas home equity 80% combined LTV rule limits how much total debt may be secured by a Texas homestead through a home-equity transaction.

For a Texas Section 50(a)(6) loan, the new loan combined with the principal balances of other liens secured by the homestead generally cannot exceed 80% of the property’s fair market value.

This limit can affect:

Texas cash-out refinances
Closed-end home-equity loans
Texas HELOCs
Refinancing an existing home-equity loan
Paying off subordinate liens
Consolidating debt
Accessing equity for another home purchase
Divorce-related transactions
Homes with multiple parcels
Properties with existing tax or improvement liens

The 80% limit applies regardless of how strong the borrower’s income, credit, or assets may be.

A borrower can receive automated underwriting approval and still be unable to close at the requested loan amount if the transaction exceeds the Texas constitutional limit.

What Does Combined Loan-to-Value Mean?

Combined loan-to-value, commonly abbreviated as CLTV, compares all applicable loans secured by the property with the property’s value.

The general formula is:

CLTV = Total balances of applicable property liens ÷ Property value

For example:

Property value: $500,000
Existing first mortgage: $300,000
Home-equity loan: $50,000
Total property liens: $350,000

The CLTV is:

$350,000 ÷ $500,000 = 70% CLTV

If the homeowner wants a new Texas home-equity transaction, the total applicable liens after closing generally cannot exceed 80% of the property’s fair market value.

How to Calculate the Maximum Total Liens

The maximum total debt generally permitted under the Texas home equity 80% combined LTV rule is calculated as:

Fair market value × 80% = Maximum total liens

For example:

Fair market value: $500,000
Maximum percentage: 80%

$500,000 × 80% = $400,000

After the new loan closes, the total applicable debt secured by the homestead generally cannot exceed $400,000.

That does not mean the borrower can receive $400,000 in cash.

Existing liens and transaction costs must be considered.

How to Estimate Available Equity Proceeds

A basic estimate is:

Maximum total liens − Existing lien payoffs − Closing costs = Approximate cash available

Suppose:

Property value: $500,000
Maximum total liens at 80%: $400,000
Existing first mortgage payoff: $280,000
Existing HELOC payoff: $20,000
Financed closing costs and prepaids: $8,000

The approximate maximum proceeds would be:

$400,000 − $280,000 − $20,000 − $8,000 = $92,000

The final amount can still change because of:

Daily payoff interest
Escrow balances
Tax payments
Insurance requirements
Updated loan fees
Appraisal changes
Title requirements
Lender restrictions
Investor loan-to-value limits
Principal curtailments or payoff shortages

The 80% calculation establishes the outer boundary—not the guaranteed check amount.

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The 80% Rule Applies to Texas Homesteads

The constitutional Texas home equity 80% combined LTV rule generally applies when the collateral is the borrower’s Texas homestead.

A homestead is generally the borrower’s principal residence.

The lender and title company may evaluate:

Actual occupancy
Homestead exemption records
Driver’s-license address
Voter registration
Homeowners insurance
Utility bills
Mailing address
Other real estate owned
Marital status
Borrower intent

The rule does not generally apply in the same way to a true:

Investment property
Second home
Commercial property
Non-owner-occupied rental property

However, simply calling a property an investment does not make it one.

Misrepresenting a homestead as an investment property to avoid Texas home-equity restrictions can create serious legal, title, and mortgage-fraud concerns.

The broader homestead analysis is explained in Texas Homestead Laws and Mortgage Financing.

Texas Constitutional Authority

The 80% limitation comes from Article XVI, Section 50(a)(6) of the Texas Constitution.

The provision generally requires that the principal amount of the home-equity loan, when added to the principal balances of all other indebtedness secured by the homestead, not exceed 80% of the homestead’s fair market value.

The complete statutory framework appears in Article XVI, Section 50 of the Texas Constitution.

The Texas Office of Consumer Credit Commissioner also summarizes the requirement in its Texas home-equity consumer disclosure.

Fannie Mae Does Not Permit an Automated Exception

Fannie Mae’s current Texas Section 50(a)(6) guidelines confirm that the maximum LTV and CLTV is 80%.

This limit applies even when:

Desktop Underwriter recommends a higher LTV
Another provision of the Selling Guide appears to permit more
The borrower has excellent credit
The borrower has substantial reserves
The transaction would qualify in another state

Fannie Mae also requires a new appraisal for an eligible Texas Section 50(a)(6) transaction, even when automated underwriting offers value acceptance. Fannie Mae’s Texas Section 50(a)(6) requirements provide the current underwriting and collateral rules.

LTV Versus CLTV

LTV and CLTV are related but different.

Loan-to-Value

LTV compares the new first mortgage with the property’s value.

For example:

New first mortgage: $360,000
Property value: $500,000

$360,000 ÷ $500,000 = 72% LTV

Combined Loan-to-Value

CLTV includes the new first mortgage plus applicable subordinate financing that will remain secured by the property.

For example:

New first mortgage: $360,000
Remaining second lien: $30,000
Property value: $500,000

$390,000 ÷ $500,000 = 78% CLTV

A loan can satisfy the first-mortgage LTV requirement while failing the combined LTV requirement.

Both calculations must be acceptable.

First-Lien Cash-Out Refinance Example

Suppose a homeowner wants to replace the existing mortgage and receive cash.

Appraised value: $750,000
Existing first mortgage payoff: $425,000
No subordinate liens
Maximum total loan at 80%: $600,000
Estimated financed costs and prepaids: $12,000

Approximate maximum cash available:

$600,000 − $425,000 − $12,000 = $163,000

The new first mortgage would be $600,000.

Its LTV would be 80%.

If the lender limits the transaction to 75% because of credit, loan amount, or another program requirement, the available proceeds would be lower.

Existing First Mortgage Plus New Home-Equity Loan

A homeowner may want to keep an existing first mortgage and add a closed-end home-equity loan.

Suppose:

Property value: $600,000
Existing first mortgage: $330,000
Maximum total liens at 80%: $480,000

The theoretical maximum second lien is:

$480,000 − $330,000 = $150,000

If the new home-equity loan includes $5,000 in financed costs, the borrower may receive approximately $145,000 before other adjustments.

The lender may approve less because of:

Minimum credit requirements
Debt-to-income ratio
Maximum second-lien limits
Combined loan-to-value overlays
Property type
Loan size
Required reserves

Existing First Mortgage Plus Texas HELOC

A Texas HELOC also must remain within the constitutional 80% limit.

Suppose:

Property value: $700,000
Existing first mortgage: $400,000
Maximum total liens at 80%: $560,000

The theoretical maximum HELOC would be:

$560,000 − $400,000 = $160,000

However, a lender may limit the HELOC to a lower percentage, such as 70% or 75% CLTV, based on its own program.

The constitutional 80% limit is the maximum available under state law—not a requirement that a lender offer financing up to that amount.

HELOC Credit Limit Versus Current Balance

A common mistake is calculating CLTV using only the current HELOC balance.

For a new Texas HELOC, the maximum principal amount that may be extended is relevant to the constitutional calculation.

Suppose:

Property value: $500,000
First mortgage: $300,000
HELOC credit limit: $100,000
Current HELOC balance: $10,000

Using only the current balance would produce:

$310,000 ÷ $500,000 = 62%

But the full available HELOC commitment may create a materially different exposure:

$400,000 ÷ $500,000 = 80%

The lender must evaluate the line under the applicable constitutional and investor rules—not merely look at what the borrower owes today.

A Zero-Balance HELOC Can Still Matter

A HELOC with a zero balance may still be:

Open
Available for future advances
Secured by a recorded lien
Included in the title commitment
Subject to subordination requirements
Required to be closed
Required to be paid off through the transaction

Paying a HELOC to zero does not automatically:

Close the credit line
Terminate the deed of trust
Release the lien
Remove it from title

The borrower may need to obtain:

Written closure instructions
A payoff statement
A freeze letter
A release of lien
Confirmation that no additional advances will be permitted

The lender and title company determine how the HELOC must be treated.

Why Closing Costs Reduce Available Cash

The new mortgage amount must remain within the maximum permitted loan-to-value.

If closing costs are financed, those costs use part of the available loan amount.

For example:

Property value: $400,000
Maximum loan at 80%: $320,000
Existing payoff: $250,000
Closing costs and prepaids: $9,000

Approximate cash available:

$320,000 − $250,000 − $9,000 = $61,000

The borrower has $150,000 in total property equity, but cannot access all of it through a Texas A6 transaction.

At least 20% of the property’s value generally must remain outside the secured debt.

Property Value Controls the Calculation

The 80% limit is based on the property’s fair market value—not:

The county tax-appraisal value
The homeowner’s estimate
An online valuation
The amount insured
The original purchase price
The highest neighborhood sale
A real estate agent’s listing recommendation
The cost of improvements

The mortgage appraisal provides the lender’s supported value for the transaction.

For an eligible Fannie Mae Texas A6 loan, a new appraisal is required and must be attached to the written acknowledgment of fair market value.

The borrower and lender must acknowledge the value used.

What If the Appraisal Changes?

Even a relatively small appraisal change can materially affect the loan.

Suppose the requested loan is $480,000.

At a $600,000 value:

$480,000 ÷ $600,000 = 80%

If the appraisal is revised to $590,000:

$480,000 ÷ $590,000 = 81.36%

The loan no longer satisfies the 80% limit.

The maximum total liens would become:

$590,000 × 80% = $472,000

The loan amount would need to be reduced by at least $8,000, plus any additional adjustment needed to satisfy lender requirements.

A borrower cannot compensate for an excessive LTV with:

Higher income
More reserves
A better credit score
Mortgage insurance
A higher interest rate

The loan amount or lien structure must change.

Can Mortgage Insurance Allow More Than 80%?

No.

Private mortgage insurance protects the lender from part of the risk associated with a higher-LTV mortgage.

It does not override the Texas constitutional limitation on a Section 50(a)(6) loan.

The loan still must comply with the applicable maximum LTV and CLTV requirements.

Does a Higher Credit Score Allow More Than 80%?

No.

Credit affects:

Interest rate
Loan approval
Pricing
Available loan programs
Reserve requirements
Debt-to-income tolerance
Lender overlays

It does not permit a Texas A6 home-equity loan to exceed the constitutional 80% limit.

Do Property Taxes or Insurance Count as Liens?

Ordinary future escrow deposits for property taxes and homeowners insurance are not treated like a subordinate mortgage balance.

However, delinquent property taxes can create liens against the property and may need to be paid through the refinance.

Financing delinquent taxes can:

Increase the required loan amount
Reduce available cash
Affect loan eligibility
Create title conditions
Require an escrow account

The title company will identify recorded or statutory liens affecting the homestead.

How Existing Second Liens Affect the Rule

An existing second mortgage can affect the transaction in several ways.

The second lien may be:

Paid off through the new first mortgage
Left in place and subordinated
Replaced
Reduced
Closed and released

If the lien remains, its applicable balance must be included in the combined LTV calculation.

If it is paid off through the new loan, the payoff becomes part of the required new mortgage amount.

Either way, the obligation affects available equity.

Subordination Does Not Make the Debt Disappear

When a second lien is subordinated, the lienholder agrees to remain behind the new first mortgage.

Subordination changes lien priority.

It does not:

Eliminate the balance
Remove the monthly payment
Remove the debt from CLTV
Release the lien
Create more equity

The borrower must still qualify with the second-lien payment, and the total liens must remain within applicable limits.

Home-Improvement Liens

A home-improvement or mechanic’s lien may be secured by the homestead if it was validly created under Texas requirements.

The lender and title company must determine:

Current payoff
Lien priority
Whether it was properly perfected
Whether it must be paid
Whether it can remain subordinate
Whether paying it affects the refinance classification
Whether the loan remains within 80% CLTV

An improperly documented improvement lien can also create title-insurance problems.

Tax Liens and Judgments

Tax liens, judgments, and other claims may affect the available loan amount and title.

The lender and title company must determine:

Whether the lien attaches to the homestead
Whether it must be paid
Whether it can be subordinated
Whether it affects first-lien enforceability
Whether payoff proceeds are permitted
Whether the resulting loan remains within 80% CLTV

A debt does not stop mattering merely because it is absent from a mortgage statement.

The title commitment must be reviewed.

Multiple Parcels

The Texas home equity 80% combined LTV rule applies to the homestead securing the loan.

For eligible Fannie Mae A6 financing, the appraisal and fair-market-value acknowledgment cannot include property other than the homestead.

This creates additional review when the homeowner owns:

Adjoining acreage
Multiple tax parcels
A separate vacant lot
Agricultural land
Commercial land
A second residence on an adjacent parcel

The lender cannot simply add the value of unrelated collateral to increase borrowing capacity.

The appraiser, surveyor, title company, and lender must identify which property constitutes the homestead and secures the loan.

Related guidance appears in Buying a Property With Multiple Parcels and Buying a Home With Acreage in Texas.

Example With Multiple Liens

Assume:

Homestead value: $900,000
First mortgage: $500,000
HELOC: $60,000
Home-improvement lien: $25,000
Maximum total liens at 80%: $720,000

Current secured debt:

$500,000 + $60,000 + $25,000 = $585,000

Maximum remaining amount before costs:

$720,000 − $585,000 = $135,000

If the new transaction includes $15,000 in costs, the theoretical available cash may be approximately:

$135,000 − $15,000 = $120,000

The lender must still determine whether the existing liens will be paid, closed, released, or subordinated.

Example Where an Open HELOC Reduces Availability

Assume:

Property value: $650,000
Maximum total liens: $520,000
Existing first mortgage: $390,000
Open HELOC limit: $75,000
Current HELOC balance: $5,000

If the HELOC remains available and must be considered at its full limit, the total potential secured debt is:

$390,000 + $75,000 = $465,000

That leaves:

$520,000 − $465,000 = $55,000

If the HELOC is paid, closed, and released through the new transaction, the lender may be able to restructure the entire debt differently.

The correct result depends on the proposed loan and lender guidelines.

Example With a Lower Investor Limit

Assume:

Property value: $800,000
Texas constitutional maximum at 80%: $640,000
Existing first mortgage: $400,000

Theoretically available before costs:

$640,000 − $400,000 = $240,000

However, suppose the lender limits the transaction to 70% LTV.

The lender’s maximum becomes:

$800,000 × 70% = $560,000

Available before costs:

$560,000 − $400,000 = $160,000

The borrower is legally permitted to borrow more under the Texas limit, but the particular lender is not required to offer it.

This is another example of Why One Mortgage Lender Says No—And Another Says Yes.

Is Every Texas Refinance Limited to 80%?

No.

The Texas home equity 80% combined LTV rule applies specifically to qualifying home-equity transactions secured by a homestead.

A standard rate-and-term refinance of an eligible purchase-money mortgage may have different maximum LTV requirements.

The transaction classification depends on:

Purpose of the existing lien
Purpose of the new loan
Whether the borrower receives cash
Whether non-purchase-money debt is paid
Whether the existing loan is already a Texas A6 loan
Whether Section 50(f)(2) applies
Investor requirements

The lender must classify the loan before determining the maximum LTV.

Refinancing a Prior A6 Loan Under Section 50(f)(2)

Certain prior Texas A6 loans may be refinanced into a non-home-equity loan under Section 50(f)(2).

The transaction generally must satisfy requirements involving:

At least one year since the prior A6 loan closed
No additional funds advanced other than permitted refinance costs
Maximum 80% LTV
Required disclosures
Valid existing liens
Owner and spouse participation

Section 50(f)(2) can change the legal classification of the new mortgage, but it does not permit the loan to exceed 80% of the homestead’s fair market value.

The original loan documents must be reviewed.

Does a Purchase Mortgage Use the Same Rule?

A purchase-money mortgage is not ordinarily a Section 50(a)(6) home-equity loan.

Certain purchase programs may permit financing above 80% LTV, including:

Conventional low-down-payment loans
FHA loans
VA loans
USDA loans

Those programs can exceed 80% because the mortgage is being used to acquire the homestead rather than extract existing equity.

This is why a Texas veteran may purchase a home with VA financing above 80% LTV but later be limited to 80% when completing a Texas cash-out refinance.

Can the Borrower Bring Money to Closing?

Yes.

If the requested mortgage exceeds the allowable amount, the borrower may be able to reduce the loan by bringing funds to closing.

For example:

Maximum allowed loan: $400,000
Existing payoff and costs: $406,000
Shortfall: $6,000

The borrower may need to bring at least $6,000, subject to updated figures and lender approval.

The funds must be properly documented under Source of Funds Requirements for a Mortgage.

Can Debts Be Removed From the Transaction?

Sometimes.

If the requested loan is too large, the borrower may choose not to pay certain debts through closing.

However, the borrower must still qualify with the debts that remain.

Removing a credit-card payoff from the closing may:

Reduce the new loan amount
Preserve compliance with 80% LTV
Increase the borrower’s debt-to-income ratio
Reduce available monthly cash flow
Affect automated underwriting approval

The lender must recalculate both:

Loan-to-value
Debt-to-income ratio

A structure that solves one problem can create another.

Does the Rule Use the Payoff or Credit-Report Balance?

Existing mortgage liens are generally evaluated using the actual amount required to satisfy or account for the lien—not merely an older credit-report balance.

A payoff statement may include:

Unpaid principal
Accrued interest
Fees
Escrow advances
Deferred balances
Recoverable expenses
Prepayment charges when legally permitted
Recording or release fees

The final payoff can be higher than the principal balance shown on the monthly statement.

That difference reduces available proceeds.

What Happens If Payoffs Increase Before Closing?

Mortgage payoffs are date-sensitive.

If closing is delayed, additional interest can increase the amount required to pay off the existing loan.

For a transaction at exactly 80% LTV, even a small payoff increase can create a shortage.

Potential solutions include:

Reducing borrower cash proceeds
Bringing funds to closing
Reducing another payoff
Adjusting the loan amount when permitted
Extending the payoff through a later date
Correcting escrow or fee estimates

A transaction should not be structured with no room for ordinary payoff changes unless the borrower understands the risk.

Common Mistakes in Online Equity Calculators

Online calculators frequently overstate available Texas home equity because they:

Use 85% or 90% LTV
Ignore existing second liens
Use the current HELOC balance instead of the relevant credit exposure
Ignore closing costs
Use an online property estimate instead of an appraisal
Ignore investor overlays
Ignore Texas A6 classification
Fail to include payoff interest
Assume appraisal waivers are available
Treat tax value as market value
Include non-homestead parcels

A calculator can provide a starting estimate.

It cannot establish the final permitted Texas loan amount.

Questions Worth Asking Before Applying

Before relying on the Texas home equity 80% combined LTV rule calculation, ask:

Is the property the borrower’s Texas homestead?
What is the realistic appraised value?
What is the current first-mortgage payoff?
Are there any second liens?
Is there an open HELOC?
What is the HELOC credit limit?
Are there improvement or tax liens?
Will any liens remain after closing?
How much will closing costs add to the loan?
Does the lender impose a limit below 80%?
Does the property include multiple parcels?
Is the current loan already a Texas A6 loan?
Is the transaction cash-out or rate-and-term?
Can the borrower bring funds if the appraisal is low?
Is the requested equity amount actually available after every payoff?

These questions should be answered before the borrower commits the proceeds to another purpose.

Common Misconceptions

“I Can Borrow 80% of My Equity”

The rule does not allow the borrower to receive 80% of the equity.

It allows total applicable liens to reach no more than 80% of the property’s value.

Existing mortgage debt must be subtracted.

“My Home Is Worth $500,000, So I Can Borrow $400,000 in Cash”

The $400,000 represents the maximum total secured debt.

The existing mortgage, other liens, and financed costs reduce the cash available.

“A Zero-Balance HELOC Does Not Count”

A zero-balance HELOC may remain open and secured by the property.

The lender and title company must address it.

“Strong Credit Allows an Exception”

The Texas constitutional limit cannot be exceeded because of a high credit score, low debt-to-income ratio, or substantial reserves.

“The County Tax Value Controls”

Mortgage lenders generally rely on an appraisal of fair market value, not the county’s taxable or assessed value.

“Every Lender Will Approve 80%”

A lender may cap the transaction below 80% based on its own program or the borrower’s risk profile.

“All Texas Refinances Are Limited to 80%”

The rule applies to home-equity transactions and certain refinances of prior home-equity loans—not every eligible rate-and-term refinance or purchase mortgage.

Real Scenarios We Encounter

The Borrower Confuses Total Equity With Accessible Equity

A homeowner has a $600,000 home and owes $300,000.

The homeowner believes all $300,000 of equity is available.

The maximum total liens at 80% are $480,000, leaving approximately $180,000 before costs—not $300,000.

The Appraisal Comes in $25,000 Low

The expected value is $700,000, but the appraisal supports $675,000.

The constitutional maximum drops from $560,000 to $540,000.

The borrower’s potential proceeds decrease by $20,000.

The HELOC Has a Small Balance but a Large Limit

The borrower owes only $2,000 on a $100,000 HELOC.

The lender discovers the full line remains open and secured by the homestead.

The HELOC must be properly addressed rather than treated as a $2,000 obligation.

Closing Costs Push the Loan Over 80%

The requested cash and mortgage payoff fit exactly within 80%, but financed closing costs cause the new loan to exceed the maximum.

The borrower must reduce cash proceeds or bring funds to closing.

A Second Lien Was Missing From the Initial Application

The borrower forgets about an old home-improvement lien.

The title commitment identifies it.

The additional payoff reduces the available cash and may require the entire transaction to be restructured.

A Lender Limits the Loan to 70%

The borrower qualifies under the Texas constitutional maximum but not under the lender’s credit or product guidelines.

Another lender may offer a different structure, but no lender can exceed the Texas 80% ceiling on an A6 transaction.

Real Lender Perspective

The Texas home equity 80% combined LTV rule is mathematically simple.

The difficulty is identifying the correct numbers.

The final calculation requires:

A supported appraised value
Accurate mortgage payoffs
Every existing lien
HELOC status
Financed costs
Correct homestead classification
Correct transaction type
Lender-specific limits

Most surprises occur because an early estimate uses:

An optimistic value
The principal balance instead of payoff
No closing costs
An omitted second lien
A zero HELOC balance without checking whether the line remains open

A strong loan strategy calculates both:

The maximum legal loan amount
The realistic cash available after every obligation

Those are not the same number.

Who This Guide Is For

This guide may be especially helpful for:

Texas homeowners considering cash-out refinancing
Borrowers considering a home-equity loan
Homeowners comparing a HELOC with a refinance
Borrowers with multiple mortgage liens
Homeowners with an existing HELOC
Borrowers refinancing a prior Texas A6 loan
Homeowners consolidating debt
Borrowers using equity for another purchase
Divorcing homeowners
Financial professionals advising Texas homeowners

Final Thoughts

The Texas home equity 80% combined LTV rule generally limits the total applicable debt secured by a Texas homestead to 80% of the property’s fair market value.

The basic calculation is:

Property value × 80% − existing liens − financed costs = approximate available proceeds

However, the final result depends on:

New appraisal
Accurate payoff statements
Existing second liens
HELOC limits and lien status
Closing costs
Transaction classification
Investor requirements
Property and parcel eligibility

The 80% limit cannot be overcome with mortgage insurance, stronger credit, more income, or automated underwriting.

The most reliable estimate comes from reviewing the property, title, appraisal, and every existing lien before promising how much cash the homeowner can receive.