Borrow Against Assets to Pay Off Debt? The Real Math
There's a strategy that gets sold hard online: don't sell your investments, borrow against them. Take a loan against your stocks, your gold, your bitcoin — use the cash to wipe out your credit cards, and let the asset keep growing. No taxes on the loan. No selling at the wrong time. "Be your own bank."
Brian walks through it on video.
The concept is real. Wealthy people genuinely do this. But when you're the one with a $12,000 credit card balance and a car payment, the math works differently than it does for someone with a nine-figure stock position. Let's walk through it honestly.
Why borrowing against assets appeals to people in debt
Three reasons people reach for this idea:
- Selling triggers tax. If your investment has gained value and you sell, you owe tax on the gain and keep what's left. A loan isn't taxed — no loan is.
- You don't want to sell a rising asset. If you believe the thing keeps going up, selling feels like quitting early.
- The approval is easy. Collateral loans don't care about your W-2s or your credit score. You're borrowing against something you already own.
All three of those are true. None of them tells you whether it's a good idea for you.
How collateral loans actually work
Every version of this — brokerage margin loan, crypto collateral loan — runs on the same three numbers.
1. Loan-to-value (LTV)
The lender only lends a fraction of what your asset is worth. A typical brokerage margin LTV is around 50%. Crypto lending platforms may go higher, around 75%. So $10,000 of stock might get you a $5,000 loan; $30,000 of crypto might get you $22,500.
2. The payment structure
Margin loans are usually interest-only — no principal due, but you pay interest every month. Some crypto loans require no monthly payment at all; the interest just accrues onto the balance until you settle up. Sounds great. It also means the balance grows quietly while you're not looking.
3. Liquidation
This is the one people underestimate. If your collateral drops in value, the lender sells enough of it to protect themselves. If you borrowed $5,000 against $10,000 of stock and the stock falls toward $6,000, they're not going to sit around and hope. They sell. You don't get a vote, and you don't get to wait for the recovery.
A worked example with simple numbers
Let's say Dana has:
- $12,000 in credit card debt at 24% APR
- $20,000 in an asset she believes in — stock, gold, crypto, doesn't matter for the math
Her cards cost her roughly $240 a month in interest alone ($12,000 × 24% ÷ 12). That's the number to beat.
Option A: sell $12,000 of the asset
Debt gone. Interest cost drops to zero. She may owe tax on the gain, and she now owns $8,000 of the asset instead of $20,000. If it doubles over five years, she missed out on $12,000 of growth. If it drops 40%, she saved herself $4,800 of pain.
Option B: borrow $12,000 against the asset
At a 50% LTV, $20,000 of collateral supports a $10,000 loan — not enough. She'd need a higher LTV or a bigger stack. Say she can borrow at 75%, so $15,000 is available and she takes $12,000.
Now: cards are paid off, and she owes $12,000 on a collateral loan. Suppose that loan costs 10%. That's $100 a month of interest instead of $240. On paper she saved $140 a month.
But. She is now borrowed at 80% of her available limit against a volatile asset. If that $20,000 asset falls 30% to $14,000, her $12,000 loan is at an 86% LTV. She gets liquidated — the lender sells her asset at the bottom to cover the loan. She ends up with no asset, possibly a remaining balance, and a tax event she didn't choose.
Option C: pay it off with cash flow
Dana keeps the asset, keeps the debt, and throws $500 a month at the cards. At 24%, a $12,000 balance takes roughly 32 months and costs about $3,700 in interest. Slower, boring, zero liquidation risk.
Run your own version of all three in the credit card payoff calculator before you decide anything. The numbers on your screen beat the numbers in a YouTube thumbnail every time.
The four questions to ask before you borrow against anything
Can I survive a 50% drop in the collateral?
Not "will it drop" — if it drops. If a 50% haircut liquidates you, you're not borrowing conservatively, you're gambling with extra steps.
Who controls the terms?
A brokerage can change margin terms, deny you, or call the loan whenever it wants. That's centralized — someone in the middle decides. Decentralized lending removes that middleman, but it does not remove liquidation. Two different risks. Don't confuse them.
Am I actually lowering my interest rate?
If your credit card is at 24% and the collateral loan is at 10%, the spread is real. If your card is at 12% and the margin rate is 12%, you've added volatility risk for nothing.
Am I solving a rate problem or a spending problem?
This is the big one. If the $12,000 balance came from overspending, moving it to a collateral loan just clears the cards so they can fill back up. You'll end up with the debt and the loan. See what to do after paying off credit card debt before you consolidate anything.
Where this strategy makes more sense
Borrowing against assets is less crazy when:
- You already own the asset — you're not buying it with borrowed money or debt payments you should be making
- You're borrowing a small fraction of the available limit, not maxing the LTV
- You have cash on the side to pay the loan down if the collateral falls
- Your emergency fund already exists — see how to calculate your emergency fund number
Notice that every one of those describes someone who's already financially stable. That's the uncomfortable truth: the strategy works best for people who need it least.
What to do if you're still in the debt phase
The boring path still wins for most people. Pick a payoff method and run it hard:
- Compare methods at Avalanche vs. Snowball
- Attack the highest rate first with the debt avalanche calculator
- If you have a car loan, see 4 ways to pay off a car loan early
- Once the debt is handled, read where to put money after your emergency fund is full
Bottom line
Borrowing against your assets instead of selling them is a legitimate tool, and the reason the wealthy use it — no tax on the loan, no forced sale, no income verification — is exactly as advertised. But the tool has a sharp edge: liquidation. The lender, not you, decides when the asset gets sold, and they'll do it at the worst possible moment.
If you're carrying 20%-plus credit card interest right now, the highest, most guaranteed return available to you isn't a clever loan structure. It's killing that balance. Run the numbers, pick a method, and build the asset base after. Then, if you still want to be your own bank, you'll actually have something worth banking.