Refinancing isn't a single decision — it's two different products that happen to share the same name. A rate-and-term refinance replaces your existing loan with a new one at a different rate or term, with no cash extracted. A cash-out refinance does the same thing but also pulls equity out as a lump sum, leaving you with a larger loan balance. They have different rates, different qualification standards, different break-even math, and different reasons to do them. Treating them as the same decision is one of the most common mistakes San Diego homeowners make when looking at the long lock-in equity they've built since 2020.

The mechanical difference

FeatureRate-and-term refinanceCash-out refinance
New loan amount≤ existing balance + closing costs> existing balance (cash withdrawn)
Typical rate vs. purchaseSame or slightly higher0.25%–0.50% higher
Max LTV (conventional)95%+80%
Max LTV (FHA)97.75%80%
Max LTV (VA)100%+ (IRRRL streamlined)100% (with funding fee)
Underwriting scrutinyStandardStricter — 6-month seasoning

The 80% LTV cap on cash-out conventional and FHA refinances is the single biggest constraint.2 If your home is worth $1.2M and you owe $700K, your equity is $500K — but you can only access cash through a cash-out refi up to 80% LTV, meaning a maximum new loan of $960K. After paying off the existing $700K, you can take out at most $260K in cash (less closing costs and any additional equity buffer the lender requires).

Rate-and-term: the cleaner decision

Rate-and-term refinances exist for one of three reasons:

The math is straightforward: divide closing costs by monthly savings to get break-even months.1 If you'll stay in the home longer than the break-even window, the refi is worthwhile. More on break-even math.

When rate-and-term doesn't make sense

Cash-out: a different decision entirely

Cash-out refinances replace your existing loan with a larger one and put the difference in your pocket. Common uses:

The cash-out math is more nuanced

Unlike rate-and-term, the simple "closing costs divided by monthly savings" formula doesn't directly apply to cash-out — because your monthly payment usually increases, not decreases. The decision logic is:

  1. What's the effective interest rate on the cash you're pulling? The new loan covers your old balance plus the cash. Calculate the rate on just the cash portion (which is almost always above the headline rate due to higher cash-out pricing).
  2. What does the cash replace? Comparing 6.75% mortgage money against 22% credit card debt is one trade. Comparing 6.75% mortgage money against 4% high-yield savings is the opposite trade.
  3. What's the tax treatment? Mortgage interest on a cash-out refinance is only tax-deductible if the cash is used to "buy, build, or substantially improve" the home.4 Cash used for debt consolidation, vacation, or investment doesn't qualify for the deduction. More on the deduction rules.

A worked San Diego example

Maria bought in Mira Mesa in 2020 for $750,000 with 20% down at 3.25%. Current balance: $540,000. Current home value: $980,000. She has $42,000 in credit card debt across three cards averaging 23% APR, monthly minimums totaling $1,300.

Option A: Rate-and-term refinance

Option B: Cash-out refinance

Maria's case shows the cash-out as the clear winner — but only because she has the high-interest debt to displace. Without the credit card balances, the math reverses entirely: the cash-out at 6.5% becomes a worse deal than her existing 3.25%.

The rate-trap problem in 2026

The vast majority of San Diego homeowners who bought between 2019 and mid-2022 have rates below 4%. For these households, any refinance — rate-and-term or cash-out — gives up an irreplaceable rate. The decision isn't "is the new rate good?" It's "is the savings or cash worth giving up my sub-4% rate?" For most cash-out scenarios, the answer is only yes when displacing genuinely high-interest debt or funding home improvements that would otherwise require even higher-cost financing. More on the rate lock-in dynamic.

Qualification differences

Rate-and-term qualification

Standard underwriting. Income, credit, DTI, and assets reviewed. Most rate-and-term refinances qualify if your purchase qualified — assuming your situation hasn't materially changed.

Cash-out qualification

Stricter on multiple dimensions:

VA-specific options

VA loans have two distinct refinance products:

Active-duty service members and veterans often have access to the most favorable refinance terms in the market. Active-duty playbook covers the timing.

How to think about which one

Three filtering questions:

  1. Do you need cash? If no, rate-and-term is the only product to consider. Don't pull equity you don't need; you'll pay for it in higher rate, higher payment, and reduced equity buffer.
  2. If you need cash, what's the alternative cost? Compare cash-out refinance rate against the rate on whatever you'd be replacing or financing instead. Cash-out at 6.75% is great compared to 22% credit cards, mediocre compared to a 7.5% HELOC (which doesn't require giving up your existing rate), and bad compared to financing through a paid-off home equity loan.
  3. What does it do to your existing rate? If your current rate is below 4%, every refinance — including cash-out — eliminates that locked-in advantage permanently. The opportunity cost is real and often underestimated.

Run rate-and-term and cash-out scenarios side by side.

Open the calculator →

The honest read

The rate-and-term decision is mostly a math problem: closing costs divided by monthly savings against your hold period. The cash-out decision is partly a math problem and partly a behavioral one — the math works on debt consolidation only if you don't refill the cards you just paid off. For San Diego homeowners with sub-4% rates from the 2020-2022 era, both products require careful comparison against alternatives that don't require giving up the lock-in: HELOCs, home equity loans, or simply continuing to pay credit cards down through normal cash flow. The right refinance is a real win; the wrong one quietly erases years of rate-lock advantage.

Refinance qualification varies by lender and individual file. Rate quotes shift daily. Always run actual numbers on your specific scenario before deciding. Educational content only — not legal, tax, or financial advice.

References

  1. Consumer Financial Protection Bureau. (n.d.). What is the difference between a fixed-rate and adjustable-rate mortgage (ARM) loan? Retrieved April 28, 2026, from https://www.consumerfinance.gov/ask-cfpb/what-is-the-difference-between-a-fixed-rate-and-adjustable-rate-mortgage-arm-loan-en-100/
  2. Fannie Mae. (n.d.). Selling Guide B2-1.3: Loan purpose. Retrieved April 28, 2026, from https://selling-guide.fanniemae.com/sel/b2-1.3/loan-purpose
  3. U.S. Department of Veterans Affairs. (n.d.). VA-backed home loans: Interest Rate Reduction Refinance Loan (IRRRL). Retrieved April 28, 2026, from https://www.va.gov/housing-assistance/home-loans/loan-types/interest-rate-reduction-loan/
  4. Internal Revenue Service. (2024). Publication 936: Home mortgage interest deduction. Retrieved April 28, 2026, from https://www.irs.gov/publications/p936