Investing term
What is New-money rebalancing?
Bringing the portfolio back to target by directing new contributions into underweight sleeves, rather than selling overweight ones.
New-money rebalancing brings your portfolio back toward its target by steering fresh contributions into the underweight assets, rather than selling your overweight ones. Instead of trimming what's grown, you simply buy more of what's lagged with the money you're adding anyway.
It's elegant because it rebalances without selling — which matters a lot in a taxable account, where selling appreciated holdings triggers a taxable gain (tax drag). By directing new deposits toward the sleeves that have fallen below target, you nudge the mix back into line while avoiding the tax cost of selling winners. Its limit is that it only works while you're regularly contributing, and only to the extent contributions are large enough relative to the drift — a small monthly deposit can't correct a big imbalance quickly. For accumulating investors, though, it's often the most tax-efficient way to rebalance.
New-money rebalancing steers fresh contributions into the underweight sleeve, nudging the mix back to target without selling — avoiding the taxable gain that selling winners would trigger.
For example
Your stocks have grown overweight, so instead of selling them (and owing tax), you direct this month's contribution entirely into bonds — nudging the mix back to target with new money.
Learn it by doing
That's New-money rebalancing in theory — it clicks when you use it. Practise it hands-on in a free, interactive lesson (Stage 18, Rebalancing & Maintenance).
Try the free lesson →Why it matters to you
New-money rebalancing matters because it's the most tax-efficient way to keep a portfolio on target while you're still contributing. Selling appreciated holdings to rebalance triggers a taxable gain in a standard account, but buying underweight assets with fresh money avoids that entirely. For investors in the accumulation phase, routinely steering contributions toward the laggards keeps the mix in line at no tax cost — a simple, powerful advantage over sell-based rebalancing.
⚠ Relying on it to fix large drifts
New-money rebalancing only works to the extent your contributions are large relative to the imbalance. A big drift — after a strong bull run, say — can't be corrected quickly by small monthly deposits alone, leaving the portfolio overweight for a long time. Assuming new money can handle any imbalance can let significant drift persist; large gaps may still need some selling to correct.