Pledged Asset Line: Borrow Against Your Portfolio Without Selling
If you have $1.5M in appreciated investments and need $200,000 for a real estate bridge, a business opportunity, or home renovation — selling and paying $30,000–$50,000 in capital gains taxes is not your only option. A pledged asset line (PAL), also called a securities-backed line of credit (SBLOC), lets you borrow against your portfolio while your investments stay fully invested. The break-even calculator below shows exactly when borrowing beats selling — and when it doesn't.
What Is a Pledged Asset Line?
A pledged asset line is a revolving credit facility secured by eligible securities in your taxable brokerage account. You pledge a portion of your portfolio as collateral; the lender provides a credit line, typically at 50–70% of your eligible holdings' value. You draw what you need, your portfolio stays invested, and you repay on your own timeline — within the lender's terms.
Three facts that matter most:
- Loan proceeds are not taxable income. The IRS does not tax borrowed money. No W-2, no 1099, no capital gain event.
- Your investments stay in your account. Pledged securities continue to grow, pay dividends, and generate returns. You cannot sell pledged positions without first repaying or releasing the pledge.
- The line is revolving. Unlike a term loan, you draw as needed, repay when cash arrives, and draw again. You pay interest only on the outstanding balance.
PAL vs. Margin Loan vs. HELOC vs. Cash-Out Refinance
| Feature | PAL / SBLOC | Margin Loan | HELOC | Cash-Out Refi |
|---|---|---|---|---|
| Collateral | Investment portfolio | Investment portfolio | Home equity | Home equity |
| Max LTV | 50–70% of eligible assets | 50% (Reg T); up to 75% portfolio margin | 80–90% of home equity | ~80% LTV |
| Typical rate (2026) | ~5.0–7.0% (SOFR + spread) | ~5.5–8.0% | ~7.0–9.0% variable | ~6.5–7.5% fixed |
| Interest deductibility | Not deductible for personal use (§163(h)); potentially deductible for investment use (§163(d), limited to NII) | Same rules as PAL | Deductible if used for home improvement (§163(h)(3)) | Same as HELOC |
| Maintenance call risk | Yes — if portfolio drops below threshold | Yes — typically faster trigger | No | No |
| Speed to fund | 1–5 business days | Instant (existing margin account) | 2–4 weeks to open | 4–8 weeks |
Borrow vs. Sell Calculator — 2026
Enter your numbers. The calculator shows the federal tax cost of selling, the interest cost of borrowing, and the break-even year at which interest surpasses the tax bill.
Federal tax only — does not include state income tax, which would make borrowing more attractive in high-tax states (California 13.3%, New York 10.9%). Uses 2026 brackets and standard deduction: $32,200 MFJ / $16,100 single (IRS Rev. Proc. 2025-32). Long-term capital gains brackets per IRS Rev. Proc. 2025-67 (OBBBA-adjusted). NIIT per IRC § 1411. Interest shown as simple interest on full balance for illustration; actual PAL interest accrues daily on drawn balance only.
Investment Interest Expense: When PAL Interest Is Deductible
The deductibility of PAL interest depends entirely on what you do with the proceeds — not what you pledged as collateral. Under Treasury Regulation § 1.163-8T, interest expense is allocated to the use of the loan proceeds.1 The same rule applies regardless of whether you pledged stocks or real estate.
- Personal use (home renovation, vacation, car, tuition): Interest is nondeductible personal interest under IRC § 163(h). The investment portfolio collateral is irrelevant. Most millionaires using a PAL for personal liquidity fall here — the gross interest rate is your real cost.
- Investment use (purchasing additional securities, funding an investment property, business investment): Interest may be deductible as investment interest expense under IRC § 163(d), but only up to your net investment income for the year — interest, nonqualified dividends, and short-term capital gains (long-term gains only if you elect to include them, at the cost of losing the preferential rate). Excess carries forward indefinitely on Form 4952.2
Bottom line for planning: if you're using a PAL to access liquidity for personal purposes, assume the interest is not deductible. Model your comparison on gross interest cost.
The Step-Up in Basis Multiplier
The most powerful argument for a pledged asset line: holding an appreciated position until death.
Under IRC § 1014, heirs receive a stepped-up cost basis equal to fair market value at the date of death.3 A stock purchased for $50,000 and worth $900,000 at death has zero capital gain for your heirs. The $850,000 embedded gain that would have cost you $127,500–$214,300 in taxes during your lifetime is eliminated entirely.
If you borrow against that position instead of selling:
- You access cash without a taxable event.
- The position continues to grow in your estate.
- At death, the step-up erases the deferred gain — you never pay capital gains tax on it.
This makes PALs particularly effective for highly appreciated founder stock, concentrated tech positions held for decades, and inherited positions with near-zero basis. The break-even calculation above becomes irrelevant when the step-up is in the plan: you're not deferring the tax — you're eliminating it permanently. The concentrated stock diversification guide covers additional strategies including exchange funds and charitable remainder trusts for positions that are too large to hold indefinitely without a plan.
When Pledged Asset Lines Work Best
- Short-to-medium term liquidity (1–4 years): The interest cost over a few years is often less than the one-time tax bill from selling. The break-even calculator above shows your specific crossover year.
- Highly appreciated positions: A 70–80% embedded gain means selling triggers a large tax. At 15% LTCG + 3.8% NIIT on a $120,000 LT gain, you pay roughly $22,560 to the IRS immediately. Borrowing $200,000 at 6% for 2 years costs $24,000 — comparable. Shorter timelines or lower rates tip decisively toward borrowing.
- Positions you plan to hold until death: The step-up eliminates the deferred gain permanently. Borrowing is essentially free from a lifetime capital-gains-tax perspective.
- IRMAA / MAGI management: Selling a large appreciated position in a Medicare-premium year can spike your MAGI into a higher IRMAA tier, adding $4,000–$9,400 per year in Medicare surcharges — two years later. Borrowing keeps the sale out of the income picture entirely.
- Bridge financing: Awaiting a real estate close, business sale proceeds, or a bonus? A PAL funds in days, far faster and cheaper than hard-money lending.
- Roth conversion coordination: Selling securities in a year when you're also doing large Roth conversions can stack income in the worst possible bracket. A PAL lets you access cash without adding to MAGI in a conversion year.
When PALs Are the Wrong Tool
- Long-duration need (5+ years): Interest compounds. Paying 6% for 8 years on $300,000 costs $144,000 in interest — often more than the tax bill you were avoiding. Run the calculator.
- Low embedded gain: If you bought recently at near-current prices, the tax cost of selling is small. The calculator may show selling is already cheaper.
- Concentrated single-stock collateral: A 40% decline in one stock that represents 90% of your pledged portfolio can trigger a maintenance call at the worst possible time. Diversified multi-asset portfolios make far safer collateral.
- Near your credit limit: Borrowing at 65–70% LTV leaves almost no buffer. A 15–20% market decline can bring you dangerously close to the maintenance threshold. Keep actual LTV 20–30 points below the maximum.
- Funding an emergency reserve: Your emergency fund belongs in cash. A PAL is a credit line — lenders can restrict or close it during exactly the kind of market dislocation when you'd need it most.
Maintenance Call Risk
Unlike a HELOC or personal loan, a PAL lender can issue a maintenance call — requiring immediate repayment or additional collateral — if your portfolio value drops below their minimum threshold. This typically happens during market downturns, which is exactly when forced selling hurts most.
The practical protection: borrow conservatively. If a lender offers 70% of eligible collateral value, draw only 35–40%. That buffer means a 40% market decline brings your LTV to roughly 58–67% of reduced collateral — still below most maintenance thresholds. For concentrated positions or volatile assets, require an even larger buffer or exclude them from the pledge entirely.
2026 Providers and Typical Rates
| Provider | Product Name | Approx. Rate (2026) | Minimum |
|---|---|---|---|
| Charles Schwab | Pledged Asset Line® | ~6.75% (SOFR + spread) | $100K line; ~$500K assets |
| Fidelity | Securities-Backed Line of Credit | SOFR + 1.90–3.10% (tiered) | $500K assets pledged |
| Morgan Stanley | Liquidity Access Line | ~6.75% | $75K+ |
| Interactive Brokers | Portfolio Margin / IBKR Credit | ~5.00% (lowest of major brokers) | Margin account; $110K minimum |
Rates are variable and tied to SOFR. Private banks (JPMorgan, Citi, UBS) typically offer 50–150 basis points below retail brokerage pricing for clients with $2M+ in qualifying assets. For borrowing above $500,000, requesting a private banking relationship alongside your custody account is worth exploring. A fee-only advisor who coordinates with your custodian can often facilitate better pricing. See how to find a fee-only advisor.