# The Texas Down Payment Trap: Why 20% Down Can Hurt By Mark Smith (@marksmith) ยท Published 2026-09-03 Canonical: https://voce.com/@marksmith/texas-down-payment-trap-hurt-1yoisx --- In 32 years of lending (11 years in Austin and San Antonio after 21 years in Albuquerque, New Mexico), I've watched well-meaning buyers scrape together a big down payment to feel safe, only to learn years later that the equity they bragged about is money they can't touch. When I moved to Texas, I had to discover (almost the hard way) about Texas 50(a)(6) mortgage loans. Texas is the only state that caps how much home equity you can borrow against. And that changes everything about how much you should put down. The advice to pile up equity assumes you can always pull it back out later. In Texas, the constitution says you can't. And that makes a big down payment **the most expensive mistake a buyer can make**. #### Key Takeaways - Texas is the only state that caps home equity borrowing at 80% of a home's value. A restriction written into the state constitution. - The 80% cap applies to your primary home only, and it binds a HELOC and a second mortgage just as it binds a cash-out refinance. - Texas lets you hold only one home equity loan against a property at a time, so you can't stack a HELOC on top of a cash-out refi. - Because of 50(a)(6), FHA and VA cash-out refinances are effectively unavailable in Texas. - Put the least money down you can get approved for and still sleep at night. Big down payments don't buy flexibility. Cash in the bank does. ## What Texas law actually does Article XVI, Section 50(a)(6) of the Texas Constitution caps home equity borrowing on your **primary home at 80% of its appraised value**, so you must always keep at least 20% equity in the house after borrowing. This isn't a lender preference. It's constitutional law, and it binds every home equity product the same way on your primary residence. That includes a HELOC and a second mortgage: Texas files them under one name, a "Texas Equity Cashout Refinance", and treats them all the same. Each one faces the same 80% cap, and you can hold only one at a time. The legal 80% cap applies to your primary home only. A second home or an investment property isn't bound by that same constitutional ceiling, but lenders still won't write a cash-out on those, because the occupancy risk isn't one they'll price for, which means investors end up with the same problem. However, most investors know this That's also why government-insured loans like FHA and VA are eliminated as cash-out options here: the structure of those programs can't fit under the constitutional cap, and lenders won't originate them ([Polunsky Beitel Green](https://www.mortgagelaw.com/insights/texas-home-equity-lending-and-prohibited-additional-collateral-part-two-va-guaranties-and-fha-mortgage-insurance)). What works in other states doesn't translate here. ## What the cap means with real numbers Say your Texas home is worth **$400,000**. The 80% cap means the most debt you can ever carry against it is **$320,000**, no matter how much wealth you build. The law measures debt, not equity, and that is the part that confuses people. A buyer who put a small amount down still has cash sitting in the bank, in a form they can use tonight. A buyer who poured a large deposit into the house traded that cash for equity. And equity in a Texas home has a ceiling: at best, the state lets you re-borrow right up to the $320,000 line and no further. Same wealth, same house. One buyer can reach their money. The other watches the law hold the door closed. ## Why the equity you can't reach matters There's a client from a few years back I still think of. He poured a big deposit into a home in Austin to lock in the smallest possible payment, paid faithfully, and banked thirty-odd percent in equity. Two years later a medical bill hit and he asked about pulling money out. I had to tell him the state wouldn't let him take more than would leave him at 20% equity. The math on his hard-earned home came up short of what he needed. No one has ever complained about having too much money in the bank, and no client of mine has ever thanked me for trapping more of it inside drywall. Cash is liquid; trapped equity is not. In 32 years, I've never lent to a borrower who loved, absolutely loved draining their bank account. But I've sat across the table from plenty who realized, too late, that the money they'd bragged about sinking into the house was the most expensive thing they owned. Whoever said money doesn't buy happiness was never poor (true dat!) To be fair, a bigger down payment buys a smaller loan, a lower monthly payment, and a certain peace of mind. For some buyers that comfort is worth the locked equity - but, not for everyone. This is why I came up with My Three Rules for Buying a Home (trademarked?) ## My three rules for buying a home I give every buyer the same three rules, in this order, and I mean every word: 1. **Put the least amount of money down**... 2. **On a loan you can get approved for...** 3. **...that doesn't keep you up at night worrying and wondering about your decision and does it align with your financial objectives?** Never ignore rule three. The order matters, and you follow it IN ORDER. Rule one is the math. It keeps capital out of a home the state won't let you unlock. Rule two is the approval floor: squeeze your down payment down to the lowest the lender and your budget will allow. Rule three is the sanity check and the compass rolled into one: if a low downpayment keeps you awake at night - that's means you may need to relook at 1 and 2. But, you HAVE to be able to say "This works" for all three rules before you decide on a downpayment. ## What agents should hear There's a conversation worth having LONG before the closing table (I recommend at teh offer stage), and it isn't about who has the bigger down payment. A buyer who keeps 5% down and a healthy savings account is often in a stronger position than one who drained every account to write a 20% check. That first buyer kept their options open in a state that caps what the second buyer can ever pull back out. The two buyers aren't in the same league; they're facing different rules, and it's worth helping them see that before the ink dries. Before you write that big deposit check, ask your loan officer (me!) what Texas will actually let you pull back out of the house in five years. Then keep the difference in the bank. Or invest it (that's what I would do). That's how you hold on to the flexibility Texas doesn't hand you automatically.