HELOC & Home Equity Loan Calculator

Home equity payment planner

Compare a HELOC with a fixed home equity loan

See the payment first, then check how the requested amount fits within your entered home value and mortgage balance.

Home equity loan · principal + interestHELOC · draw then repayment

Equity check

How the request fits the 85% planning cap

$53,750 room after this request

Current mortgage$150,000
Desired amount$30,000
Room after request$53,750

Term comparison

Compare payment and total interest

Same amount and rate

Term	Monthly payment	Total interest	Total payments
5 years	$590.50	$5,430.23	$35,430.23
10 years	$344.47	$11,336.68	$41,336.68
15 yearsSelected	$265.47	$17,785.11	$47,785.11
20 years	$228.11	$24,746.21	$54,746.21
30 years	$194.58	$40,048.59	$70,048.59

How this estimate works

The fixed-loan payment uses monthly amortization. The HELOC scenario charges monthly interest on the full entered amount during the draw period, then amortizes that same balance during repayment. No new draws or principal payments are modeled during the draw period.

Estimates only. The rate is entered by you and is not live. Actual HELOC rates are commonly variable, and lenders may use different combined-LTV limits, minimum payments, fees, terms, credit rules, valuations, and property requirements. Your home secures either product.

Draw-to-repayment transition

See Why a HELOC Payment Can Rise When the Draw Period Ends

A home equity line is revolving during its draw phase and then changes into repayment under the plan's terms. This calculator holds one entered balance and one rate constant to isolate the payment transition; a real HELOC may have variable rates and additional draws.

Key ideas · Draw-to-repayment transition

Key ideas in See Why a HELOC Payment Can Rise When the Draw Period Ends

Draw phase: The modeled minimum covers interest only on the entered outstanding balance.
Repayment phase: The same balance is amortized over the entered repayment period.
Collateral boundary: Failure to repay home-secured credit can put the property at risk.

HELOC transition: model an outstanding balance, not a credit limit
Enter the amount currently drawn, because interest is generally calculated on the outstanding balance rather than the unused line. The calculator assumes no additional advances and a constant annual rate. Those constraints make the phase comparison understandable but do not reproduce an open-end account that changes daily. Save the statement date, balance, index, margin, current rate, remaining draw months, and repayment term. If the agreement uses a minimum dollar payment or principal during draw, this interest-only model will not match it.
HELOC transition: calculate the post-draw payment shock
During the modeled draw period, payment equals interest and principal remains. Once draws stop, that balance must be repaid over the shorter entered amortization period, so the payment can rise even with an unchanged rate. CFPB guidance warns that some plans may require a large repayment and that variable rates can move month to month. Compare the fixed repayment ledger with the Amortization Calculator and a lump-sum home-equity replacement scenario with the Cash-Out Refinance Calculator.
HELOC transition: stress the index and draw assumptions
Run higher-rate cases based on the contract's index, margin, periodic cap, and lifetime maximum rather than a random percentage. Then test an additional-draw case outside the calculator ledger if future borrowing is plausible. A line may also be frozen or reduced when property value or borrower circumstances change, so unused availability is not cash on hand. Use the Home Loan Affordability Calculator only to see how an entered repayment affects a broader monthly constraint, never as an approval model.
HELOC transition: inventory fees and fixed-rate options
Review annual fees, inactivity charges, early-closure recapture, minimum draws, transaction charges, and any conversion option. A fixed-rate lock on part of a line can create multiple balance buckets with separate payment schedules. Regulation Z requires plan disclosures, including payment examples and how a variable rate is determined, but the calculator does not classify or import them. Build a line-item ledger and compare offers using the same balance path rather than comparing one introductory payment with another plan's repayment payment.
HELOC transition: keep home-secured risk visible
A HELOC uses home equity as collateral. Lower opening payments do not eliminate principal, and refinancing or selling later may be unavailable or costly. Verify draw expiration, repayment method, balloon possibility, rate ceiling, lien position, and prepayment or closure terms in the agreement. This constant-rate calculator does not predict an index, property value, credit-line access, foreclosure outcome, tax deduction, or lender approval. It supplies a two-phase stress test, not personalized borrowing or legal advice.

See Why a HELOC Payment Can Rise When the Draw Period Ends: A home equity line is revolving during its draw phase and then changes into repayment under the plan's terms. This calculator holds one entered balance and one rate constant to isolate the payment transition; a real HELOC may have variable rates and additional draws.

HELOC transition: model an outstanding balance, not a credit limit

Enter the amount currently drawn, because interest is generally calculated on the outstanding balance rather than the unused line. The calculator assumes no additional advances and a constant annual rate. Those constraints make the phase comparison understandable but do not reproduce an open-end account that changes daily. Save the statement date, balance, index, margin, current rate, remaining draw months, and repayment term. If the agreement uses a minimum dollar payment or principal during draw, this interest-only model will not match it.

HELOC transition: calculate the post-draw payment shock

During the modeled draw period, payment equals interest and principal remains. Once draws stop, that balance must be repaid over the shorter entered amortization period, so the payment can rise even with an unchanged rate. CFPB guidance warns that some plans may require a large repayment and that variable rates can move month to month. Compare the fixed repayment ledger with the Amortization Calculator and a lump-sum home-equity replacement scenario with the Cash-Out Refinance Calculator.

HELOC transition: stress the index and draw assumptions

Run higher-rate cases based on the contract's index, margin, periodic cap, and lifetime maximum rather than a random percentage. Then test an additional-draw case outside the calculator ledger if future borrowing is plausible. A line may also be frozen or reduced when property value or borrower circumstances change, so unused availability is not cash on hand. Use the Home Loan Affordability Calculator only to see how an entered repayment affects a broader monthly constraint, never as an approval model.

HELOC transition: inventory fees and fixed-rate options

Review annual fees, inactivity charges, early-closure recapture, minimum draws, transaction charges, and any conversion option. A fixed-rate lock on part of a line can create multiple balance buckets with separate payment schedules. Regulation Z requires plan disclosures, including payment examples and how a variable rate is determined, but the calculator does not classify or import them. Build a line-item ledger and compare offers using the same balance path rather than comparing one introductory payment with another plan's repayment payment.

HELOC transition: keep home-secured risk visible

A HELOC uses home equity as collateral. Lower opening payments do not eliminate principal, and refinancing or selling later may be unavailable or costly. Verify draw expiration, repayment method, balloon possibility, rate ceiling, lien position, and prepayment or closure terms in the agreement. This constant-rate calculator does not predict an index, property value, credit-line access, foreclosure outcome, tax deduction, or lender approval. It supplies a two-phase stress test, not personalized borrowing or legal advice.

Important limitations

This is an educational estimate, not an offer or approval. The 85% combined-LTV cap and entered rate are planning assumptions; actual limits, variable rates, payment rules, fees, credit requirements, property eligibility, taxes, and insurance depend on the lender and agreement.

Review the stated scope, calculation method, assumptions, supported inputs, and effective dates, and obtain qualified advice before using a high-stakes result.

This formula passed its registered engineering tests and is published under an explicit site-owner policy authorization. No independent expert, QA, editorial, legal, or third-party review is claimed. Verify consequential results with a qualified professional.

This subject may affect health, finance, tax, legal, or other consequential decisions. It has not received an independent domain-expert review; consult a qualified professional before relying on it.

Draw-to-repayment transition

See Why a HELOC Payment Can Rise When the Draw Period Ends

Key ideas · Draw-to-repayment transition

Key ideas in See Why a HELOC Payment Can Rise When the Draw Period Ends

Draw phase: The modeled minimum covers interest only on the entered outstanding balance.
Repayment phase: The same balance is amortized over the entered repayment period.
Collateral boundary: Failure to repay home-secured credit can put the property at risk.

HELOC transition: model an outstanding balance, not a credit limit
Enter the amount currently drawn, because interest is generally calculated on the outstanding balance rather than the unused line. The calculator assumes no additional advances and a constant annual rate. Those constraints make the phase comparison understandable but do not reproduce an open-end account that changes daily. Save the statement date, balance, index, margin, current rate, remaining draw months, and repayment term. If the agreement uses a minimum dollar payment or principal during draw, this interest-only model will not match it.
HELOC transition: calculate the post-draw payment shock
During the modeled draw period, payment equals interest and principal remains. Once draws stop, that balance must be repaid over the shorter entered amortization period, so the payment can rise even with an unchanged rate. CFPB guidance warns that some plans may require a large repayment and that variable rates can move month to month. Compare the fixed repayment ledger with the Amortization Calculator and a lump-sum home-equity replacement scenario with the Cash-Out Refinance Calculator.
HELOC transition: stress the index and draw assumptions
Run higher-rate cases based on the contract's index, margin, periodic cap, and lifetime maximum rather than a random percentage. Then test an additional-draw case outside the calculator ledger if future borrowing is plausible. A line may also be frozen or reduced when property value or borrower circumstances change, so unused availability is not cash on hand. Use the Home Loan Affordability Calculator only to see how an entered repayment affects a broader monthly constraint, never as an approval model.
HELOC transition: inventory fees and fixed-rate options
Review annual fees, inactivity charges, early-closure recapture, minimum draws, transaction charges, and any conversion option. A fixed-rate lock on part of a line can create multiple balance buckets with separate payment schedules. Regulation Z requires plan disclosures, including payment examples and how a variable rate is determined, but the calculator does not classify or import them. Build a line-item ledger and compare offers using the same balance path rather than comparing one introductory payment with another plan's repayment payment.
HELOC transition: keep home-secured risk visible
A HELOC uses home equity as collateral. Lower opening payments do not eliminate principal, and refinancing or selling later may be unavailable or costly. Verify draw expiration, repayment method, balloon possibility, rate ceiling, lien position, and prepayment or closure terms in the agreement. This constant-rate calculator does not predict an index, property value, credit-line access, foreclosure outcome, tax deduction, or lender approval. It supplies a two-phase stress test, not personalized borrowing or legal advice.

HELOC & Home Equity Loan Calculator

Compare a HELOC with a fixed home equity loan

Tell us about your home and borrowing plan

How the request fits the 85% planning cap

Compare payment and total interest

See Why a HELOC Payment Can Rise When the Draw Period Ends

Key ideas in See Why a HELOC Payment Can Rise When the Draw Period Ends

HELOC transition: model an outstanding balance, not a credit limit

HELOC transition: calculate the post-draw payment shock

HELOC transition: stress the index and draw assumptions

HELOC transition: inventory fees and fixed-rate options

HELOC transition: keep home-secured risk visible

HELOC transition: model an outstanding balance, not a credit limit

HELOC transition: calculate the post-draw payment shock

HELOC transition: stress the index and draw assumptions

HELOC transition: inventory fees and fixed-rate options

HELOC transition: keep home-secured risk visible

Important limitations

Compare a HELOC with a fixed home equity loan

Tell us about your home and borrowing plan

How the request fits the 85% planning cap

Compare payment and total interest

See Why a HELOC Payment Can Rise When the Draw Period Ends

Key ideas in See Why a HELOC Payment Can Rise When the Draw Period Ends

HELOC transition: model an outstanding balance, not a credit limit

HELOC transition: calculate the post-draw payment shock

HELOC transition: stress the index and draw assumptions

HELOC transition: inventory fees and fixed-rate options

HELOC transition: keep home-secured risk visible

HELOC transition: model an outstanding balance, not a credit limit

HELOC transition: calculate the post-draw payment shock

HELOC transition: stress the index and draw assumptions

HELOC transition: inventory fees and fixed-rate options

HELOC transition: keep home-secured risk visible