A mortgage lender cares about the property's value and your income; a Lombard lender cares about your portfolio's liquidity and diversification. Borrowers who fail to qualify for jumbo mortgages post-retirement often qualify easily for Lombard facilities because the collateral speaks for itself.
Lombard Loan
A Lombard loan is a pledge-backed credit facility where a bank lends against a portfolio of stocks, bonds, funds, or structured products, typically advancing 50 to 90 percent of the portfolio's value depending on asset quality and concentration. Rates at Swiss private banks and European wealth managers currently run roughly 1.5 to 3.5 percent over SONIA or SOFR for top-tier clients, though pricing tightens considerably above the $5 million collateral threshold. Setup is fast, often two to four weeks, with no appraisal, no title search, and no fixed repayment schedule. If the Lombard structure interests you as part of a broader borrow-and-hold strategy, see how it compares to margin lending in this breakdown: Lombard Loan vs Margin Loan: Which Borrowing Structure Actually Serves You.
Mortgage
A mortgage gives you a fixed or floating rate loan secured against real estate, with LTVs typically capped at 65 to 80 percent for investment property and up to 95 percent for primary residences with insurance. Interest rates on jumbo mortgages in the US currently sit in the 6.5 to 7.5 percent range, and in the UK around 5 to 6.5 percent for non-owner-occupied property. Mortgage interest on investment property remains deductible in most jurisdictions, which partially offsets the higher nominal rate, but the closing process takes 30 to 90 days and involves appraisal fees, title insurance, legal fees, and potentially stamp duty or transfer taxes that can add 2 to 5 percent to the total cost of entry. Mortgages also carry fixed amortization schedules or balloon payments, which Lombard facilities generally do not.
Tax and Estate Planning Implications
The core advantage of a Lombard loan inside a buy-borrow-die structure is that borrowing against appreciated securities triggers zero capital gains. The appreciated assets can pass to heirs with a stepped-up cost basis, and the outstanding loan balance reduces the taxable estate. Mortgages on real property can also defer gains through 1031 exchanges in the US or equivalent equivalents in other jurisdictions, but the mechanics are slower and jurisdiction-specific. For ultra-high-net-worth families running assets through offshore trusts or holding companies, Lombard facilities booked in Zurich, Luxembourg, or Singapore add an additional layer because the credit line sits outside the domestic estate entirely. Mortgage debt on foreign property does reduce the gross estate in most regimes, but rarely with the same flexibility or speed as a pledged securities facility.
When to Stack Both
Many clients above the $20 million net worth threshold carry both structures simultaneously: a mortgage on the flagship property for its interest deductibility and the stable long-term leverage it provides, and a Lombard facility on the liquid portfolio for opportunistic capital deployment, tax-loss harvesting, or bridging a transaction without liquidating positions. The Lombard line functions as a revolving credit facility with no fixed drawdown obligation, while the mortgage anchors the real estate. Used together, they maximize leverage across asset classes while keeping taxable events near zero for as long as the assets remain held and the borrower remains solvent.
Things people ask first.
Which has lower interest rates, a Lombard loan or a mortgage?
Lombard loans at major private banks currently carry lower nominal rates than jumbo mortgages in the US and UK, often by 200 to 400 basis points at the top tier. The gap narrows if you are comparing against a fixed-rate mortgage locked in before 2022, but on new originations in 2024 and 2025, Lombard wins on rate.
Can I use a Lombard loan to buy real estate instead of a mortgage?
Yes. Many private banking clients draw against their Lombard facility to fund a real estate purchase in cash, then optionally take a mortgage later to recycle the liquidity. This approach can speed up a property acquisition significantly, particularly in competitive markets where sellers prefer cash offers.
Is Lombard loan interest tax-deductible?
In most jurisdictions it depends on what the loan proceeds are used for. If the borrowed funds are invested, the interest is generally deductible against investment income. If used for personal consumption, it typically is not. Mortgage interest on investment property is deductible in the US, UK, and most European jurisdictions regardless of how the proceeds are deployed, which can make it comparatively cleaner from a documentation standpoint.
What happens to a Lombard loan if the portfolio drops sharply?
The bank issues a margin call and requires you to either post additional collateral, repay part of the loan, or liquidate positions to bring the loan-to-value ratio back within the agreed threshold. This is the primary risk that mortgages do not carry, since mortgage collateral is appraised infrequently and property prices move more slowly.
Can a Lombard loan be booked offshore for additional privacy?
Yes. A Lombard facility at a Swiss, Singaporean, or Luxembourg private bank is documented and held entirely outside your home country's public record system, unlike a domestic mortgage which is registered against the title in a public land registry. For clients concerned about creditor visibility, this is a meaningful structural difference.
Which structure fits better inside a buy-borrow-die strategy?
Lombard loans are the primary tool of buy-borrow-die because the collateral is a liquid securities portfolio that appreciates tax-deferred, the loan carries no forced repayment schedule, and the facility can be renewed indefinitely. Mortgages complement the strategy on the real estate side but are secondary to Lombard as the core borrowing mechanism.
Want the full buy-borrow-die architecture in one place?
The Offshore Playbook covers Lombard facility structuring, offshore booking locations, trust integration, and stepped-up basis planning in detail. If this comparison raised as many questions as it answered, the Playbook is where the complete mechanics live.
Get the Offshore Playbook