Securities-based lines of credit let you unlock liquidity from your portfolio without selling. Here is exactly how they work in 2026.
A securities-based line of credit (SBLOC) is a revolving credit facility collateralised by an investor's portfolio of stocks, bonds, ETFs, and mutual funds, letting the investor borrow against the portfolio without selling. Most major US brokerages offer SBLOCs at rates of SOFR plus 1.50 to 3.65 percent, advance rates of 50 to 75 percent on diversified equity portfolios, and minimum portfolio sizes of $100,000 to $250,000. Proceeds can be used for any purpose except buying additional securities. The single biggest risk is the maintenance call: if portfolio value falls below the lender's threshold, the borrower must deposit cash or accept forced liquidation.
A securities-based line of credit is a revolving loan secured by investments in your taxable brokerage account. You pledge stocks, bonds, ETFs, or mutual funds as collateral. In return, the lender provides a credit facility. Typically 50% to 90% of pledged value. That you draw from, repay and redraw without reapplying.
You may also hear it called a pledged asset line, a liquidity access line, or an SBLOC. All interchangeable names used by different brokerages.
The core appeal: access cash without selling investments. Selling triggers capital gains taxes, disrupts your strategy and takes you out of the market. An SBLOC avoids all three.
Margin loan: Purpose loan to buy more securities. Regulated under Fed Regulation T (50% initial limit, 25% maintenance). Rates 8-13%.
Securities-based line: Non-purpose loan for anything except buying securities. Not subject to Reg T. More lenient maintenance thresholds. Rates 5.5-7.5%.
Cost difference on $500,000: potentially $15,000+ per year. See our SBLOC rates by broker guide.
No income documentation, no home appraisal, no lengthy underwriting. Your collateral is already in the lender's systems.
Draw when needed. Wire, ACH, or check. Most firms allow online draws in minutes. No minimum draw at most firms.
Pay interest only. Monthly on outstanding balance. On $200,000 at 6.5% = ~$1,083/month. No principal amortization, no fixed repayment.
Repay and redraw freely. No prepayment penalties. After repaying, credit line is immediately available again.
Investments stay invested. Pledged securities remain in your account. You receive dividends and distributions. Portfolio continues to grow or decline. You just can't sell pledged securities without the lender's release.
Key takeaway: A securities-based line of credit gives you bank-account-like access to your portfolio's value without triggering a taxable event. Borrow conservatively at 30-40% of pledged value and it becomes one of the most efficient liquidity tools available.
Poor fit if: pledging more than 50% of portfolio, no liquid reserves for a maintenance call, concentrated in volatile stocks, or tempted to use proceeds for speculation.
Compare alternatives: HELOCs put your home at risk instead of investments. A different risk, not necessarily worse. Choose the tool that fits your full financial picture.
Not every position in your brokerage account qualifies as SBLOC collateral. Lenders maintain a list of eligible securities and apply different advance rates based on liquidity, volatility, and credit quality.
Consider a borrower with a $750,000 brokerage account split as follows: $500,000 in diversified large-cap equities, $200,000 in investment-grade corporate bonds, and $50,000 in US Treasuries.
Advance rate calculation:
The borrower draws $300,000 (56 percent utilisation) at SOFR + 2.4 percent (6.7 percent all-in). Annual interest cost at 6.7 percent on $300,000: $20,100 per year.
If the use of proceeds qualifies as investment interest (e.g. purchasing a rental property), the $20,100 may be deductible against net investment income on Form 4952. For a borrower in the 32 percent federal bracket plus 3.8 percent NIIT, the after-tax cost is approximately $20,100 minus $7,200 in tax savings, or $12,900 effective annual cost.
SBLOCs and margin loans share the same fundamental structure (borrowing against pledged securities) but they differ in three important ways.
| Feature | SBLOC | Margin Loan |
|---|---|---|
| Use of proceeds | Anything except buying securities | Buying additional securities (purpose loan) |
| Typical advance rate (equities) | 50 to 70 percent | 50 percent (Reg T initial), 25 percent maintenance |
| Maintenance call window | 1 to 3 business days | Same-day to 1 business day; some lenders auto-liquidate |
| Interest rate | SOFR + 1.50 to 3.65 percent | SOFR + 1.00 to 4.00 percent (broker-dependent) |
SBLOC is well-suited to several specific borrowing scenarios:
SBLOC is poorly suited to several other scenarios:
Opening an SBLOC at a major US brokerage follows a standardised process that takes 5 to 10 business days for new applicants and 1 to 3 days for existing brokerage customers.
Verify that your brokerage offers SBLOCs (most do, but some discount brokers do not), your portfolio meets the minimum threshold ($100K to $1M depending on lender), and your asset mix qualifies (eligible securities only, not crypto or restricted stock).
Online application via the brokerage portal or through your assigned advisor. The application captures personal information, intended use of proceeds (note: SBLOC is non-purpose so the lender will not police the use, but they ask for compliance reasons), and the requested credit limit.
The lender reviews the application, verifies portfolio composition and pledgeability, runs a soft (sometimes hard) credit check, and computes the offered credit limit based on advance rates. Most established brokerage customers receive an offer within 24 to 48 hours.
The lender sends the SBLOC agreement, security pledge agreement, and disclosure documents for signature. Review carefully: the security agreement gives the lender broad rights over pledged securities including the right to sell without consultation during maintenance calls.
Once documents are signed and pledged securities are flagged, the credit line is active. The first draw can typically be requested same-day via the brokerage portal, with funds arriving in your bank account within 1 to 2 business days via ACH or wire.
Once active, an SBLOC requires ongoing management to avoid surprises. Three habits prevent most operational issues.
Review the lender's monthly statement for the all-in interest rate, the breakdown of SOFR base plus spread, and any fees. SBLOC rates float monthly, so the rate this month differs from last month. Track the changes to model your forward-looking interest cost.
Compute your equity ratio (account value minus outstanding draw, divided by required maintenance equity) quarterly. If the ratio is drifting toward maintenance threshold, take pre-emptive action: pay down the balance, add cash, or reduce concentration.
Once a year, evaluate whether SBLOC is still the right tool. Has your tax situation changed (different bracket, different deduction availability)? Has the market environment changed (rising or falling rates)? Has your portfolio composition changed (more or less diversified)? The right answer may shift over time.
Pledged securities are not frozen, but selling them while the SBLOC has an outstanding balance is more complex than ordinary trading. Three rules govern.
Rule 1: The lender must approve material reductions in pledged value. Selling a pledged security and withdrawing the proceeds reduces the collateral base, which the lender must approve in advance via a release request. Most lenders process release requests within 1 to 2 business days for routine reductions.
Rule 2: Reinvesting within the pledged account is usually permitted. Selling Stock A and buying Stock B in the same account does not reduce the collateral base; the new security takes the same pledge subject to eligibility (Stock B must be on the lender's eligible list, with its own advance rate).
Rule 3: Tax-loss harvesting can be coordinated with the lender. If you want to harvest a loss by selling a pledged security and buying a similar but not substantially-identical replacement, request a release for the sale and a pledge addition for the replacement in the same transaction window. Most private wealth lenders coordinate this routinely.
SBLOC borrowers who establish a multi-year relationship with their broker often find opportunities to reduce their spread through refinancing or consolidation. Three common patterns.
Pattern 1: Move to a higher tier through consolidation. An SBLOC borrower at the $250K to $500K tier paying SOFR + 3.0 percent can consolidate additional brokerage accounts into the pledged portfolio to cross into the $500K to $1M tier, dropping the spread to SOFR + 2.0 percent. The 100 basis point saving on a $400,000 outstanding balance is $4,000 per year, often worth the operational effort of consolidating accounts.
Pattern 2: Negotiate rate match with a competing quote. Established borrowers with strong delivery history can often negotiate a 25 to 50 basis point reduction by presenting a competing quote from another lender. The home brokerage typically matches to retain the relationship rather than lose the loan.
Pattern 3: Refinance the SBLOC into a private bank facility. Borrowers whose total wealth has grown beyond the original lender's preferred tier can refinance into a private bank facility (Goldman, Morgan Stanley Private Wealth, J.P. Morgan Private Bank) at SOFR + 0.75 to 1.5 percent. The trade-off is that private bank relationships require broader engagement (often investment management, deposits, advisory) rather than standalone SBLOC.
Most major lenders require $100,000 to $250,000 in pledgeable securities. Goldman GS Select and other private wealth tiers start at $1 million and above. Below $100,000, SBLOC is generally not offered, and alternatives like personal credit lines may be more appropriate.
Most major US lenders (Schwab, Fidelity, Wells Fargo) do not perform a hard credit pull at SBLOC origination and do not report SBLOC balances to credit bureaus. This is a meaningful advantage over HELOCs or unsecured lines, which both perform hard pulls and report balances.
Yes. SBLOC proceeds can fund private business investments, real estate, working capital, or any other non-securities use. The interest is potentially deductible as business interest expense if traced to a qualifying trade or business.
SBLOC rates are floating, tied to SOFR. A Fed rate increase translates to a roughly proportional increase in your SBLOC rate within one reset period (typically 30 to 45 days). Plan for floating-rate exposure as part of your borrowing strategy.
Yes, provided the collateral is separated. Each pledged portfolio can only secure one SBLOC at a time, but different portfolios at different brokerages can each have their own SBLOC.
SBLOC proceeds cannot be used to buy securities; margin loans are specifically for that purpose. SBLOCs typically have longer maintenance call windows (1 to 3 days vs same-day for margin) and tighter advance rates that provide more cushion.
Clarivian's SBLOC tools show live rates from 10 major lenders, run after-tax cost models for your specific bracket and use case, and stress-test your portfolio against historical drawdowns. See which Clarivian tier matches your portfolio.
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