The Real Cash You Need to Buy a Home in SoCal (It's Not Just the Down Payment)

Most buyers obsess over one number: the down payment. Then they get a week from closing and discover the down payment was only about two-thirds of the check they're actually writing. If you're buying in today's SoCal market, here's the real math — every bucket of cash, no surprises.

Let's use a realistic example: $700,000 home, 10% down.

1. Down payment: $70,000

The obvious one. On $700K with 10% down, that's $70,000 wired to escrow at closing. (In SoCal, 10–20% is typical for conventional loans; first-time buyers on FHA can go lower, but the other buckets don't shrink.)

2. Closing costs: ~$14,000–$21,000

Closing costs in California typically run 2–5% of the purchase price — and California skews high because of our tax and insurance prepaids. On a $700K purchase, budget around $17,500 for:

• Lender fees — origination, underwriting, points (the lender's cut for making the loan)
• Title insurance + escrow fees — the middlemen who make the transaction legal and recorded
• Recording and transfer charges — county fees for the deed
• Prepaids — 2–6 months of property taxes (~$640/mo in OC at ~1.1%) and homeowner's insurance collected upfront at closing

This is the bucket that blindsides people. It's not optional, it's not negotiable much, and it's due in cash at closing — not rolled into the loan.

3. Earnest money deposit: $7,000–$14,000

When your offer is accepted, you put down earnest money (a good-faith deposit, usually 1–3% of the price) within a few days. On $700K, plan on $10,000–$14,000.

Here's the part people miss: earnest money isn't extra — it gets credited toward your down payment and closing costs at closing. But it comes out of your pocket on day 3, not day 30. If your liquid savings are tight, that timing matters.

4. The appraisal gap reserve: $0–$25,000

If the home appraises below your offer price, the lender won't cover the difference — you will, in cash. In today's SoCal market, appraisal gaps are less common than during the bidding-war years, but they still happen, especially on unique properties.

Keep a cushion. I tell buyers to mentally reserve $10,000–$25,000 that they hope they never spend. If the appraisal comes in at value, this money stays in your pocket.

5. Reserves: don't go to zero

After closing, you still need to live. Movers, a broken water heater, the first month's surprises. Lenders often want to see 2–6 months of reserves anyway. Keep at least $10,000–$15,000 untouched.

The total: roughly $95,000–$110,000

Add it up for the $700K example: Down payment (10%) $70,000; Closing costs (~2.5%) ~$17,500; Earnest money credited at close (comes from above); Appraisal gap reserve $10,000–$25,000; Post-closing reserves $10,000–$15,000. Realistic all-in: ~$95,000–$110,000.

That 10%-down home doesn't take $70K. It takes roughly $100K. Plan for that number and closing feels boring — which is exactly how closing should feel.

What changes at 20% down

Bump to 20% ($140,000 down) and the picture improves in three ways: you skip PMI entirely (that's roughly $200–$350/month back in your pocket on this loan), closing costs don't change much, and your all-in number lands around $165,000–$180,000. The trade-off is time — saving an extra $70K can take years of renting. Run both scenarios with your lender; don't assume 20% is automatically the smarter play in today's SoCal market.

Gift funds: the documentation drill

Getting help from family? Lenders are fine with gift funds — but they document them like a crime scene. Expect: a gift letter (signed, stating it's not a loan), the donor's bank statement showing the transfer, and the money seasoned in your account before closing. Start this paperwork the day you get pre-approved, not the week of closing.

Want the one-page version?

I built a SoCal Buyer's Cash Checklist for my Instagram community — the 3 checks at closing, fill-in-your-numbers blanks, and how buyers use it to know their true number before they tour. DM "NUMBERS" to @rubenmartinezrealestate and I'll send it over.

Buying in SoCal and want a real cash-to-close number on an actual listing — not a guess? I'll break it down line by line, free. DM me "HOME" on Instagram or call/text (714) 732-1860.

Ruben Martinez | Redfin Agent | DRE #01946610 | Serving buyers across SoCal