Calculating and Tracking Equity
How do I calculate my home equity?
Home Equity = Current Market Value − All Mortgage Balances. Example: Home valued at $435,000 with a $290,000 primary mortgage and $25,000 HELOC: equity = $435,000 − $290,000 − $25,000 = $120,000. LTV = ($290,000 + $25,000) ÷ $435,000 = 72.4%.
How accurate is my Zillow estimate for equity calculations?
Zillow’s Zestimate is within 5% of actual sale price for about 80% of properties in active markets. For routine equity monitoring, it’s sufficiently accurate. For loan applications, lenders require a formal appraisal.
Quick reference: home equity rules of thumb by topic
| Question Category | Key Metric | Rule of Thumb |
|---|---|---|
| Building equity | Annual equity gain | 1–2% of home value minimum from paydown + appreciation |
| PMI removal | LTV threshold | 80% LTV — request removal; 78% — automatic cancellation |
| HELOC access | Combined LTV | Best terms at 75% CLTV or below |
| Cash-out refi | LTV post-refi | Standard max: 80% LTV; some programs to 85% |
| Selling position | Equity buffer | 20%+ to cover selling costs and have net proceeds |
Borrowing Against Equity
What’s the difference between a HELOC and a home equity loan?
HELOC: revolving line of credit at variable rate; draw and repay as needed; typically 10-year draw period then repayment. Home equity loan: lump sum at fixed rate; repaid like a mortgage. HELOC: flexibility. Home equity loan: certainty. For ongoing renovation projects with uncertain total cost: HELOC. For one-time large expenses: home equity loan.
When does borrowing against equity make sense?
Borrowing against equity makes sense when: (1) expected return on proceeds exceeds borrowing cost (renovation ROI above HELOC rate, investment property return above cash-out rate); (2) bridging a cash gap for a specific, defined purpose; (3) consolidating significantly higher-rate debt. Does NOT make sense for: consumer spending, lifestyle inflation, or volatile investments.
Before drawing on home equity: Expected return on proceeds > Borrowing rate (HELOC or mortgage rate). Kitchen renovation (ROI 115%) funded by HELOC (9%) = YES. Stock portfolio investment (7% expected) funded by HELOC (9%) = NO. Investment rental property (10–12% return) funded by HELOC (9%) = BORDERLINE — evaluate specific deal.
Building and Managing Equity
Should I accelerate equity or invest extra money?
The break-even mortgage rate for this decision is approximately 5.5–6% (after-tax equivalent). Above 6%: extra payments provide competitive guaranteed return vs. stock market. Below 5%: investing clearly wins. Between 5–6%: split the extra money between both — contribute to Roth IRA and make modest extra payments.
Get Your Complete Equity Picture
Current value, current balance — every equity question answered from one calculation.