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Secured Borrowing Guide

Borrow Against Your Home for Improvements

Your home’s equity can fund major improvement projects at rates far lower than credit cards or unsecured loans. Home equity loans, HELOCs, and cash-out refinancing let you tap this value—but your home serves as collateral. Here’s how each option works and how to choose wisely.

Updated March 2026|10 min read

Secured Borrowing Basics

  • Collateral: Your home secures the loan
  • Rates: 7-11% (lower than unsecured)
  • Max LTV: 80-85% combined with mortgage
  • Tax benefit: Interest may be deductible
  • Risk: Foreclosure if you default
By the BuildFolio Team Updated: March 3, 2026 Fact-checked

Quick Answer

To borrow against your home, use a home equity loan (lump sum, fixed rate), HELOC (revolving credit, variable rate), or cash-out refinance (new mortgage with cash back). You’ll need 15-20% equity remaining after borrowing, credit score of 620+, and DTI under 43-50%. Rates are typically 7-11%—much lower than credit cards or personal loans—but your home is at risk if you can’t repay.

Three Ways to Borrow Against Your Home

Home Equity Loan

Lump sum at a fixed rate with predictable monthly payments. Also called a “second mortgage.”

  • Rate: 7-11% fixed
  • Amount: Up to 85% LTV
  • Term: 5-30 years
  • Funding: 2-6 weeks

Best for: Known costs

HELOC

Revolving credit line you draw from as needed, like a credit card secured by your home.

  • Rate: Variable (Prime+1-2%)
  • Amount: Up to 85% LTV
  • Draw: 5-10 years
  • Setup: 2-4 weeks

Best for: Flexibility

Cash-Out Refinance

Replace your mortgage with a larger one and receive the difference in cash.

  • Rate: Mortgage rates
  • Amount: Up to 80% LTV
  • Term: 15-30 years
  • Funding: 30-45 days

Best for: Large amounts

Home Equity Loan: Detailed Look

Pros

  • Fixed rate—payment never changes
  • Lower rates than personal loans (7-11%)
  • Longer terms = lower monthly payments
  • Interest may be tax-deductible
  • Get all funds upfront for contractors
  • Clear payoff timeline

Cons

  • Home at risk if you default
  • Pay interest on full amount immediately
  • Closing costs (2-5%)
  • Slower funding (2-6 weeks)
  • Reduces your equity cushion
  • Can’t borrow more without new loan

HELOC: Detailed Look

Pros

  • Pay interest only on what you use
  • Draw funds when needed
  • Reusable—pay down and reborrow
  • Often lower initial rates than fixed loans
  • Interest-only payments during draw period
  • Good for phased projects

Cons

  • Variable rate can rise significantly
  • Payment shock when draw period ends
  • Home at risk
  • Temptation to over-borrow
  • May have annual fees
  • Can be frozen in housing downturns

Cash-Out Refinance: Detailed Look

Pros

  • One payment (replaces mortgage)
  • Can improve rate if current rate is higher
  • Large amounts available
  • Long terms for lower payments
  • Fixed rate stability

Cons

  • Resets your mortgage term (more interest long-term)
  • Higher closing costs (2-5% of full loan)
  • Doesn’t make sense if current rate is low
  • Longest funding timeline (30-45 days)
  • Stricter qualifying requirements

See what you can borrow

Compare rates for home equity loans, HELOCs, and refinancing options.

Requirements to Borrow Against Your Home

Requirement Home Equity Loan HELOC Cash-Out Refi
Credit Score 620+ (740+ for best rates) 620+ (740+ for best rates) 620+ (740+ for best rates)
Equity Required 15-20% after borrowing 15-20% after borrowing 20% after borrowing
Max CLTV 80-85% 80-85% 80%
Debt-to-Income 43-50% max 43-50% max 43-50% max
Income Verification Yes (W-2s, tax returns) Yes (W-2s, tax returns) Yes (W-2s, tax returns)
Appraisal Usually required Usually required Always required
Mortgage Status Current (no late payments) Current (no late payments) Current (no late payments)

How to Calculate Your Borrowing Capacity

Step 1: Know Your Home Value

Check Zillow, Redfin, or recent comps. For lending, a professional appraisal ($300-$600) determines the official value.

Example: Home value = $450,000

Step 2: Check Your Mortgage Balance

Find your current payoff amount on your latest mortgage statement or lender portal.

Example: Mortgage = $280,000

Step 3: Calculate Current Equity

Home value minus mortgage balance equals your current equity.

Example: $450K – $280K = $170,000 equity

Step 4: Calculate Available to Borrow

Multiply home value by 85%, then subtract mortgage balance.

Example: ($450K × 85%) – $280K = $102,500 available

Equity Example Calculator

If your home is worth $400,000 and you owe $250,000, your equity is $150,000. With an 85% max CLTV, you could borrow up to: ($400K × 85%) – $250K = $90,000. Some lenders may limit to 80% CLTV, which would be: ($400K × 80%) – $250K = $70,000.

Risks of Borrowing Against Your Home

While secured borrowing offers lower rates, it comes with significant risks you should understand:

Foreclosure Risk

If you can’t make payments, the lender can foreclose on your home. Unlike credit card debt, secured debt puts your housing at risk. Default can lead to losing your home.

Most serious risk

Reduced Equity Cushion

Borrowing reduces your equity buffer. If home values drop, you could end up “underwater” (owing more than home is worth), making it hard to sell or refinance.

Market risk

Rate Increases (HELOC)

HELOC variable rates can rise significantly. A 3% rate increase on $50,000 balance adds $1,500/year in interest. Budget for potential payment increases.

Payment risk

Long-Term Debt

You’re trading short-term cash for years of payments. A 15-year home equity loan means 180 monthly payments. Make sure the improvement is worth that commitment.

Commitment risk

When NOT to Borrow Against Your Home

Avoid secured borrowing when: You have unstable income, you’re already stretching your budget, the project is purely cosmetic, you’re planning to sell soon and won’t recoup costs, or you’d be above 80% combined LTV. Consider alternatives like personal loans (no home risk) or saving for non-urgent projects.

Which Option Should You Choose?

Your Situation Best Option Why
Know exact project cost Home Equity Loan Fixed rate, predictable payments, lump sum for contractors
Phased project or uncertain costs HELOC Draw as needed, pay interest only on what you use
Need large amount ($100K+) Cash-Out Refi Higher limits, one payment, potentially lower rate
Current mortgage rate is high Cash-Out Refi Can improve rate while accessing cash
Want to keep mortgage separate Home Equity Loan or HELOC Second lien doesn’t affect first mortgage
Multiple small projects over time HELOC Reusable credit line for ongoing needs
Risk-averse, want stability Home Equity Loan Fixed rate protects against rate increases

Consider Both

Some homeowners use a combination: a home equity loan for the main project budget (predictable payments) plus a small HELOC for contingencies and unexpected costs. This provides stability with built-in flexibility.

Frequently Asked Questions

What are the ways to borrow against your home?

The three main ways to borrow against your home are: 1) Home Equity Loan – a lump sum with fixed interest rates and predictable monthly payments. 2) HELOC (Home Equity Line of Credit) – a revolving credit line with variable rates where you draw funds as needed. 3) Cash-Out Refinance – replaces your existing mortgage with a larger one, giving you the difference in cash. All three use your home as collateral.

How much equity do I need to borrow against my home?

Most lenders require you to keep 15-20% equity in your home after borrowing (meaning a maximum 80-85% combined loan-to-value or CLTV). For example, if your home is worth $400,000, you’d need to keep $60,000-$80,000 in equity. If you currently owe $250,000 on your mortgage, you could potentially borrow $70,000-$90,000 depending on the lender’s specific CLTV requirements.

Is it a good idea to borrow against your home for improvements?

Borrowing against your home can be smart when: the improvements add value to your home, rates are significantly lower than unsecured alternatives, and the interest is tax-deductible. The risks include: your home serves as collateral (foreclosure possible if you default), you reduce your equity cushion, and you’re committed to payments for years. It’s generally best for necessary repairs and value-adding projects, less ideal for purely cosmetic upgrades.

What credit score do I need to borrow against my home?

Most lenders require a minimum credit score of 620 for home equity loans and HELOCs. For the best interest rates, you’ll want a score of 740 or higher. Some lenders offer programs for borrowers with scores as low as 580, but expect higher interest rates and stricter requirements. Your credit score also affects how much you can borrow and your loan terms.

Can I borrow against my home if I have a mortgage?

Yes—most homeowners who borrow against their home already have a mortgage. The home equity loan or HELOC becomes a “second lien,” meaning it’s in second position behind your primary mortgage. Lenders limit your total borrowing to 80-85% of your home’s value (combined). You’ll have two payments: your original mortgage payment plus the equity loan/HELOC payment. A cash-out refinance combines everything into one new mortgage with one payment.

Is home equity loan interest tax deductible?

Yes, interest on home equity loans and HELOCs is tax-deductible when the funds are used to “buy, build, or substantially improve” the home securing the loan. The deduction limit is interest on up to $750,000 of total qualified mortgage debt ($375,000 if married filing separately). Keep receipts and records showing how funds were used for improvements. Consult a tax professional for your specific situation.

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