Should You Break Your Keren Hishtalmut to Pay Off Your Mortgage?
An analysis of whether to liquidate a liquid keren hishtalmut fund to pay off a mortgage, comparing long-term compounding returns, tax advantages, and liquidity.
When you have 400,000 shekels in a liquid advanced training fund (keren hishtalmut) alongside a mortgage carrying an interest rate of roughly 4.5%, the temptation to pay off debt immediately is completely understandable. Why continue paying interest to the bank when you can withdraw the funds and wipe out a large portion of the liability? However, doing so might mean sacrificing the massive structural advantages that a keren hishtalmut provides.
In a general investment track consisting of about 40% equities and the rest in bonds, an average annual return of around 6% is a reasonable baseline assumption for a long-term horizon. While past years have seen significantly higher figures that are unlikely to repeat indefinitely, decades of historical data support this baseline. For instance, leaving 400,000 shekels in the fund to compound at 6% annually yields approximately 716,000 shekels after 10 years, and roughly 959,000 shekels after 15 years—pushing close to the one-million-shekel mark without adding another agorot.
Tax Advantages and Compounding
Unlike a standard investment portfolio where realized gains are typically subject to a 25% capital gains tax, the profits within a qualified keren hishtalmut continue to accumulate tax-free. The product remains uniquely efficient, starting from the initial contributions—where employers typically deposit 7.5% and employees 2.5%—through the tax-free growth phase all the way to eventual withdrawal.
To evaluate whether to liquidate the fund for the mortgage, we must compare the fund's projected gains against the cost of the loan. Assuming 400,000 shekels remain on a mortgage over 10 years at 4.5% interest, the monthly payment for that portion is about 4,146 shekels, with total interest reaching roughly 97,000 shekels. Withdrawing the fund to close this debt guarantees a savings of that interest while freeing up 4,146 shekels every month. This is a certain, volatility-free savings—unlike market-dependent returns.
The Importance of Reinvestment
To make a fair comparison, one must look at what happens to the freed-up cash flow. If a family uses the monthly 4,146 shekels for daily consumption, they have surrendered a 400,000-shekel asset that could have compounded significantly. If they rigorously reinvest that exact monthly amount into a standard taxable portfolio at 6%, the comparison shifts. After 10 years, that monthly contribution yields about 679,000 shekels before tax, or roughly 630,000 to 640,000 shekels after capital gains tax, depending on realization timing.
Meanwhile, the remaining 400,000 shekels left untouched inside the keren hishtalmut reach about 716,000 shekels. Even after closing the mortgage and reinvesting the monthly payment into a standard account, the fund maintains an advantage of tens of thousands of shekels because it worked from day one with the full principal inside a tax-preferred wrapper.
Liquidity and Peace of Mind
Beyond raw mathematics, 400,000 shekels in a liquid fund serve as a vital safety net. If a breadwinner loses a job, medical expenses arise, or an investment opportunity appears, the money is instantly accessible. Once locked into real estate via a mortgage payoff, that capital turns into illiquid home equity.
Financial intuition often favors letting the money work in the fund when viewing a 10-to-15-year horizon, balancing guaranteed mortgage savings against tax-advantaged market potential and liquidity.
For families under heavy financial strain where a mortgage payment causes severe monthly stress, partial payoff makes absolute sense. Alternatively, a middle ground exists: withdrawing 100,000 or 150,000 shekels to reduce monthly pressure while letting the remaining balance continue compounding.
