Refinance vs HELOC Cash Flow Calculator
Compare the monthly cash flow impact of a cash-out refinance versus a HELOC to determine which option best preserves your monthly budget.
Refinance vs HELOC — Which Is Better for Cash Flow?
When you need to access home equity, two primary options exist: a cash-out refinance replaces your current mortgage with a larger loan at today's market rate, giving you cash at closing. A HELOC adds a second revolving credit line to your existing mortgage, leaving your first mortgage untouched. The cash flow impact of each option is dramatically different depending on your current rate versus today's market rate.
As of May 2026, 30-year fixed rates hover near 6.85%. Homeowners who locked in 3-4% rates in 2020-2021 would dramatically increase their total mortgage payment by refinancing. A HELOC at 8.5% on $60,000 adds roughly $425/month in interest-only payments — painful, but far less than losing a sub-4% rate on a $300,000 balance.
Refinance vs HELOC Comparison Table
| Factor | Cash-Out Refinance | HELOC |
|---|---|---|
| First mortgage | Replaced at new rate | Unchanged |
| Rate type | Fixed (usually) | Variable (usually) |
| Closing costs | 2-5% of loan ($4K-$12K) | $500-$2,000 |
| Best when | Current rate > new rate | Current rate < new rate |
| Draw period | None — lump sum only | 10 years (draw), 20 years (repay) |
| Interest deductible | Yes (if used for home) | Yes (only if used to improve home) |
Source: Consumer Financial Protection Bureau, IRS Publication 936. Last updated: May 2026.
HELOC Risks You Must Know
HELOCs carry variable interest rates tied to the prime rate. If the Fed raises rates, your HELOC payment rises. In 2022-2023, prime moved from 3.25% to 8.50% — HELOC borrowers saw payments nearly triple. As of May 2026, prime is at 7.50%, and HELOC rates typically run 1-2% above prime. Budget conservatively and consider whether you could absorb a 2% rate increase. HELOCs also have draw periods (typically 10 years) followed by repayment periods — the shift from interest-only to fully amortizing payments can be a payment shock. Plan ahead and use the HELOC for investments with a clear payoff timeline.
When Refinancing Wins
Refinancing wins when today's market rate is at least 0.75% below your existing rate, you need a large lump sum (not a revolving line), and you plan to stay in the home long enough to recoup closing costs (typically 24-48 months). It also wins when you want to lock in a fixed rate on all your debt with a single monthly payment and a predictable amortization schedule over 15-30 years.
Frequently Asked Questions
What is the difference between a cash-out refinance and a HELOC?
A cash-out refinance replaces your existing mortgage with a new, larger mortgage and gives you the difference in cash. A HELOC is a revolving credit line secured by your home equity — your first mortgage remains unchanged. Refinancing changes your rate and term; HELOC adds a second lien.
When is a HELOC better than refinancing in 2026?
A HELOC is better when your existing mortgage rate is lower than current refinance rates. As of May 2026, 30-year rates are near 6.85%. If you locked in 3-4% during 2020-2021, refinancing would significantly raise your first mortgage rate. A HELOC lets you access equity without touching the low-rate first mortgage.
Is HELOC interest tax-deductible?
HELOC interest is deductible only when the funds are used to buy, build, or substantially improve the home securing the debt. If you use HELOC proceeds for personal expenses, the interest is not deductible. Source: IRS Publication 936, Home Mortgage Interest Deduction.
What are typical closing costs for a cash-out refinance?
Cash-out refinance closing costs typically range from 2-5% of the new loan amount — often $4,000-$12,000 on a $200,000-$400,000 loan. HELOC closing costs are much lower, typically $500-$2,000. Some lenders offer no-closing-cost HELOCs in exchange for a slightly higher rate.
Can I get a HELOC on a rental property?
Yes, but it is harder than on a primary residence. Lenders typically require 20-30% equity remaining, higher credit scores (700+), and charge higher interest rates. DSCR-based lenders are an alternative for investment properties.
What LTV is allowed for a cash-out refinance?
Most conventional cash-out refinances allow up to 80% LTV, meaning you can access up to 80% of your home's appraised value minus your existing mortgage balance. FHA cash-out allows up to 80% LTV; VA cash-out allows up to 90% LTV for eligible veterans.