Loan Against Mutual Funds: How the Lien Works, What It Really Costs, and When It Backfires

A loan against mutual funds (LAMF) lets you borrow against units you keep invested: the units are pledged to the lender, a lien is marked at the registrar, and money lands in your account without any units being sold. No redemption means no capital-gains event, no exit load, and no break in compounding. It is a genuinely useful bridge in specific situations — and a mechanism with a built-in trap in a market fall. This page covers both halves.

What exactly happens when you pledge units?

You apply with a lender (bank or NBFC), they value your eligible units, and on sanction the registrar — CAMS or KFintech, or your demat depository for demat-held units — marks a lien on the pledged folios in the lender's favour. CAMS runs a fully digital LAMF flow: the lien marking, the loan disbursal and later the release all happen electronically through the registrar. The units stay invested the whole time; NAVs keep moving; you keep owning them. What you cannot do is redeem pledged units until the lien is released — which is also the mechanism that protects the lender.

How much can you borrow?

Loan-to-value rules are regulatory, not discretionary. Equity-oriented units are generally financed at 50% LTV — SBI's own product page states 50% for its mutual-fund and ETF pledges, consistent with RBI norms for loans against securities — so a ₹10 lakh equity portfolio supports roughly a ₹5 lakh loan. Liquid and debt funds are more favourable collateral and often finance at higher LTVs, lender permitting. The line moves with the market daily: the eligible amount tracks NAV, which is why the facility is cheap to run in a rising market and demanding in a falling one.

What does it cost, and why does the interest reset?

LAMF is priced between a home loan and a credit card — check the lender's published rate rather than trusting any article. Two cost mechanics matter more than the headline rate. First, the rate resets: most LAMF facilities re-price periodically against a benchmark, so the EMI you budgeted this year is not contractually the one you pay in year three. Second, interest accrues monthly on the outstanding amount, and there is no maturity discipline — the facility can quietly run for years, which turns a "bridge" into an expensive lifestyle subsidy if you stop treating it as one.

The trap: the margin call in a market fall

This is the part brochures underplay. If the NAV of pledged equity units falls, your loan-to-value rises above the cap, and the lender demands a top-up — bring cash, pledge more units, or partially repay within days. If you cannot, the lender sells units to restore the ratio — which is forced selling at exactly the moment you never wanted to sell, crystallising losses and possibly a tax event at the worst prices. A 25% market fall on a 50%-LTV pledge roughly wipes out the entire cushion; this is the same sequence-of-returns mechanism that makes leveraged strategies dangerous, applied to your own long-term corpus. The standing guardrails: borrow well below the maximum (40% LTV against the 50% cap leaves real room), keep a pre-committed top-up reserve outside the pledged portfolio, and never pledge the emergency fund's investments.

When is it the right tool?

• Right: a short-term bridge where redeeming would crystallise a large LTCG bill or break an ELSS lock-in — for example, funds needed for months, not years, against a portfolio that should stay invested.
• Right: business working-capital swings where the alternative is a costlier unsecured loan, with the pledged sleeve explicitly sized for the purpose.
• Wrong: consuming against your retirement corpus — a LAMF does not make the money free; it makes it collateral, and the interest you pay to spend your own future is a guaranteed negative return on the pledged units.
• Wrong: anything an emergency fund should have covered. The facility is for planned bridges, not for discovering you never had liquidity.

Educational content, not financial advice. LTV figures reflect RBI norms and lenders' published product pages (SBI: 50% for MF/ETF pledges) as of 29 October 2026; interest rates are lender-specific and reset — check the live rate. The margin-call arithmetic is a stated illustration. The source video for this page is the second part of its creator's two-part series on the topic; this page is written to stand alone.