Best Brokerages for Borrowing Against a Direct Indexing Portfolio

If you hold a direct indexing account, the cheapest published securities-backed borrowing in August 2026 is Frec's portfolio line of credit at 4.64% against up to 70% of the portfolio, followed by Wealthfront's Portfolio Line of Credit at 4.71% APR against up to 30%. Interactive Brokers quotes margin from 4.13% and M1 quotes 5.65%, but neither runs a direct indexing account you would be borrowing against. Schwab's Pledged Asset Line does not publish a rate at all and requires a $100,000 minimum credit facility.

Every rate below was pulled from the provider's own page on August 26, 2026. Borrowing rates move with short-term interest rates, so re-check before you act on any of them. This is educational content, not investment, tax or lending advice, and nobody named here pays us anything.

Why a direct indexing account is the worst thing to sell and the best thing to borrow against

This is the part that gets skipped, and it is the whole reason the question comes up more often for direct indexing holders than for anyone else.

Tax loss harvesting works by selling losers and immediately replacing them. Every time it runs, your average cost basis drops a little. After four or five years of a rising market, a direct indexing account holds a large embedded gain by design. Goldman Sachs Asset Management puts it bluntly in its own Form ADV: harvesting "creates a growing contingent future tax liability on unrealized gains", and if the account is liquidated "the client will generally face immediate taxes on these realized gains".

So the account you built specifically to defer taxes is the account you can least afford to sell. Liquidating it hands back years of deferral in a single tax year, at up to 23.8% federal on long-term gains once you include the 3.8% net investment income tax. Borrowing against it instead is not a trick. It is the only way to get cash out without unwinding the thing the fee was paying for.

Securities-backed borrowing rates compared, August 2026

The only two rows that let you borrow against the exact assets a direct indexer manages for you, at a rate you can read before you apply, are Frec and Wealthfront. That is why the rest of this piece spends most of its time on those two.

Frec versus Wealthfront: seven basis points, or more than twice the money

On rate, these two are effectively tied. 4.64% against 4.71% is a difference of seven basis points, which on a $100,000 loan is $70 a year. Nobody should pick a platform over that.

The loan-to-value ratio is where they genuinely diverge, and it is not close. Frec advertises up to 70% loan to value, with the caveat that initial availability typically sits nearer 50% and rises as the portfolio appreciates. Wealthfront caps its Portfolio Line of Credit at 30% of the portfolio. On a $500,000 account that is roughly $350,000 of eventual capacity against $150,000. If the reason you are asking is a house deposit or a tax bill, the capacity difference decides it and the rate does not.

Wealthfront wins on friction. Its own page says the line comes with "No credit check or application fee" and "No repayment schedule", and it is available to any client with at least $25,000 in a taxable Automated Investing Account. Note that qualifying condition carefully: it names the Automated Investing Account, which is the 0.25% product, not the 0.09% S&P 500 Direct account. If your money sits in S&P 500 Direct specifically, confirm eligibility with Wealthfront before you plan around the line of credit. It is the kind of detail that is easy to assume and expensive to assume wrongly.

One more thing worth knowing before you compare either against a conventional loan: securities-backed lines are priced off the collateral, not off you, which is why there is no credit check. The alternatives you would otherwise be shopping, a home equity line or an unsecured personal loan, are priced off your credit file instead, so it is worth understanding what is actually driving that score before you decide the margin rate is the better deal. Wealthfront's own comparison puts the average credit card at 19.49% and personal loans at 6.99% to 35.99%, which is the gap that makes this whole category interesting.

What about Fidelity, Vanguard, E*Trade and Schwab margin rates?

M1 publishes a comparison chart on its borrowing page showing Fidelity at 10.575%, E*Trade at 10.00%, Vanguard at 9.95% and Schwab at 9.50% against its own 5.65%. Treat those as M1's marketing figures rather than verified numbers, because they are, and M1 dates its own rate to February 1, 2026 in a footnote on the same page. The directional point stands even if the decimals move: standard retail margin at the big brokerages runs roughly double what the purpose-built securities-backed lines charge.

The reason is structural. Retail margin is a trading facility with a tiered rate that only gets competitive at seven-figure balances, which is exactly what Interactive Brokers' "from 4.13%" reflects. A pledged asset line or a portfolio line of credit is a lending product, underwritten against collateral, priced once. If you are borrowing to spend rather than to trade, you want the second kind.

The three risks that actually matter here

A margin call forces exactly the sale you were avoiding. This is the big one and it is specific to direct indexing. If the market falls far enough that the lender demands collateral, the account gets liquidated at depressed prices, and because harvesting has driven your basis down, the forced sale realizes a gain you did not choose to take, in a year you did not choose to take it. You lose on both sides at once. Borrowing well under the maximum is the entire defense, and it is why Frec's 70% ceiling should be read as a limit rather than a target.

Pledged shares can interfere with harvesting. The whole machine depends on being able to sell a lot at a loss and replace it. Shares committed as collateral can carry restrictions, and where they do, the harvesting engine has less to work with. Ask the provider directly how a drawn line interacts with the tax management before you draw on it, because the answer is not the same everywhere and it changes what you are paying the management fee for.

The rate is not fixed. Wealthfront states this plainly: the rate "changes as US interest rates move". Every rate on this page is a floating rate. A 4.64% line is cheap against a 23.8% capital gains bill today, and it is a different calculation if short-term rates climb two points while the balance is still outstanding. Model it at a rate higher than today's before you commit.

So which should you use?

If you already hold a direct indexing account, borrow where the account is. Moving a direct indexing portfolio to chase seven basis points on a loan is a bad trade, because an outbound transfer liquidates fractional shares and can generate a 1099-B with hundreds of taxable line items, which is covered in detail in our piece on ACATS transfers and direct indexing.

If you are choosing a platform now and expect to borrow later, Frec's combination of 0.09% management, 4.64% borrowing and up to 70% loan to value is the most capital-efficient published package available to a self-service investor, and the full breakdown of Frec's fees and strategies covers what you give up for it. If you want the lowest minimum and the least paperwork, Wealthfront at $5,000 for S&P 500 Direct with a no-credit-check line above it is easier to start, and the Wealthfront direct indexing cost breakdown explains why its two products are priced so differently.

And if you are still working out whether the management fee earns its keep before you layer borrowing on top of it, start with the numbers: every published rate and minimum in the category sits in one table on our direct indexing fees and minimums comparison. The borrowing decision is much easier once you know what the account itself costs, and whether the harvesting is still producing anything, which is the subject of what to do when there are no losses left to harvest.

Sources and dates

Frec line of credit rate and loan-to-value: frec.com/pricing, retrieved August 26, 2026. Wealthfront Portfolio Line of Credit rate, 30% cap, $25,000 Automated Investing Account requirement, no-credit-check language and the credit card and personal loan comparison figures: wealthfront.com/portfolio-line-of-credit, retrieved August 26, 2026. Interactive Brokers margin rate: interactivebrokers.com margin rates page, retrieved August 26, 2026. M1 margin rate, 50% cap, $2,000 account requirement and the competitor comparison chart: m1.com/borrow, retrieved August 26, 2026, with M1's own footnote dating its rate to February 1, 2026. Schwab Pledged Asset Line discount tiers and the $100,000 minimum credit facility: schwab.com pledged asset line page, retrieved August 26, 2026. Contingent tax liability language: Goldman Sachs Asset Management LP, Form ADV Part 2A dated May 22, 2026, retrieved from the SEC's Investment Adviser Public Disclosure system under CRD 107738. Capital gains rates: 20% top long-term rate plus the 3.8% net investment income tax. Rates float and schedules change, so verify with the provider before acting.