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Home Equity Loan Calculator
Home equity loan calculator
Computes max borrow at 85% combined LTV minus mortgage, approves the lesser of that and your request, then amortizes. Not a lender offer.
On this page (tap to expand)
Quick answer: Home Equity Loan Calculator
Eighty-five percent of appraised value minus mortgage balance caps borrowing; we amortize the lesser of that cap and your request at the rate you type.
Example: Four hundred thousand value, two hundred forty mortgage → about one hundred max new lien at the eighty-five percent combined rule of thumb.
Calculations follow the documented formula on this page; rounding and input units can change the last digit—treat outputs as educational estimates unless you reconcile with source systems.
* This is an estimate. Actual amounts may vary slightly based on input assumptions.
What this calculator does
- Home Equity Loan Calculator
- 85% CLTV cap sketch vs requested amount + payment.
HELOC draw periods, IO windows, and risk-based pricing spreads are not modeled-this is closed-end second-lien style math.
Computes max borrow at 85% combined LTV minus mortgage, approves the lesser of that and your request, then amortizes. Not a lender offer.
Inputs on this page: Home value ($), Current mortgage balance ($), Desired loan ($), Annual interest rate (%). Assumptions stay visible so you can reproduce the figure elsewhere.
When to use it
- Use Home Equity Loan Calculator when you need a transparent home equity loan calculator answer before you commit numbers to a spreadsheet, invoice, or conversation.
- Reach for it when you already know (or can estimate) Home value ($) and want the dependent result without rebuilding the formula by hand.
- Skip it when you need certified advice, signed-off payroll, or a lender’s official quote—those require the primary institution’s systems.
Key takeaways
- Texas homestead rules famously differ; local counsel matters.
- Appraisal gaps kill deals even when Zillow looks friendly.
- Interest tracing rules affect whether deductibility even matters to you.
How to use this tool
- 1Enter your scenario details.
- 2Click calculate.
- 3Review figures as planning estimates only.
Guides and explainers
Long-form walkthroughs that pair well with this calculator. When you need narrative context beyond the live fields, start here and return to the tool to plug in your own numbers.
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Combined LTV caps explained with a $520k home example, payment intuition, and Toollabz’s free home equity loan calculator - not a lender offer.
Read guide →Mortgage payment in the USA: what PITI actually means (2026)
P&I is only part of your US mortgage payment. Taxes, insurance, PMI, and HOA change what you actually spend - worked example plus a link to Toollabz’s free mortgage payment calculator.
Read guide →Refinance break-even: when the closing costs actually pay back (2026)
Learn the simple break-even months formula for US refinances, see a $6,200 / $185 example, and use Toollabz’s refinance break-even calculator with your loan details.
Read guide →
Practical scenarios
People who care about home equity loan calculator use Home Equity Loan Calculator as a planning sandbox: Texas homestead rules famously differ; local counsel matters.
Continue in the Finance tools collection or the glossary. Related calculators in this session: Mortgage Payment Calculator, Refinance Break-Even Calculator, Mortgage Affordability Calculator USA, Loan Calculator, Rent vs Buy Calculator USA, Salary After Tax Calculator UK.
Key formula explained
How the calculation works
The Formula
Max borrow = min(request, 0.85×home − mortgage); payment = amortize approved principal- Home value ($): the value you enter for home value.
- Current mortgage balance ($): the value you enter for mortgage balance.
- Desired loan ($): the value you enter for desired loan amount.
- Annual interest rate (%): the value you enter for heloc annual rate.
- Term (years): the value you enter for heloc term years.
| This tool | Max borrow = min(request, 0.85×home − mortgage); payment = amortize approved principal |
|---|---|
| Related intent: home equity loan calculator | See paired tools for home equity loan calculator-each page documents its own core relationship next to the live form. |
| Related intent: HELOC calculator | See paired tools for HELOC calculator-each page documents its own core relationship next to the live form. |
Core relationship for Home Equity Loan Calculator:
Max borrow = min(request, 0.85×home − mortgage); payment = amortize approved principal
Worked check: Four hundred thousand value, two hundred forty mortgage → about one hundred max new lien at the eighty-five percent combined rule of thumb.
Related calculations
Keep the same assumptions and open a neighbor calculator when your question branches: Mortgage Payment Calculator, Refinance Break-Even Calculator, Mortgage Affordability Calculator USA, Loan Calculator. Each page documents its own formula beside the fields.
Learning links: Methodology · Editorial policy · Glossary
Worked real-world example
Four hundred thousand value, two hundred forty mortgage → about one hundred max new lien at the eighty-five percent combined rule of thumb.
Re-enter the same numbers in the calculator above to confirm the page math matches the interactive result.
Who uses this tool?
People who care about home equity loan calculator use Home Equity Loan Calculator as a planning sandbox: Texas homestead rules famously differ; local counsel matters.
Common mistakes
- For Home Equity Loan Calculator, mismatched units or periods (monthly vs annual, % vs decimal) are the fastest path to a believable wrong answer on home equity loan calculator.
- Watch for this pitfall: Appraisal gaps kill deals even when Zillow looks friendly.
- If you paste the result into a decision doc, note the formula and the page date (2026-07-18) so teammates can reproduce it.
References & sources
Official references for context. Calculator outputs are planning estimates—confirm material decisions with the primary authority or a qualified professional. See our methodology and editorial policy.
- Toollabz methodology — How we document formulas and update pages
- HMRC — Income Tax rates and Personal Allowances
- HMRC — National Insurance
- IRS — Tax topics (US)
- Consumer Financial Protection Bureau
- Bank of England — Bank Rate
Content last updated 2026-07-18
FAQs
Click a question to expand the answer.
Is 85% guaranteed?
No. Lenders use different caps and credit overlays.
HELOC IO phase?
This models fully amortizing payment only.
Appraisal?
Value is your input, not an appraisal.
Closing costs?
Not deducted from proceeds here.
Rate type?
Single fixed rate assumption.
Tax deductibility?
Depends on use of funds and current law-consult a tax pro.
What does Home Equity Loan Calculator calculate in plain English?
Eighty-five percent of appraised value minus mortgage balance caps borrowing; we amortize the lesser of that cap and your request at the rate you type.
Is Home Equity Loan Calculator a substitute for professional advice on home equity loan calculator?
No. Treat this as a planning estimate. Confirm material decisions with HMRC, the IRS, a licensed adviser, or a clinician as appropriate.
Next step
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Built and maintained by Imtiaz Ahmad
Founder and lead engineer | Content updated July 18, 2026
See methodology and editorial policy.