Free calculator
Portfolio rebalancing calculator
Enter what you hold now and the mix you want. The calculator shows how far you’ve drifted from your target and what it would take to get back.
Working it out…
How it works
Your drift is the gap between the share of your portfolio in shares now and your target, in percentage points.
If you add new money, the calculator puts it into whichever side is under target first. That way you sell less, which saves dealing costs and, outside a tax-free account, possible tax on gains.
Vanguard’s research found that checking once or twice a year and rebalancing at around 5 points of drift worked well for most share-and-bond mixes. Our 60/40 lesson explains the study.
Results are illustrations from the numbers you enter, not forecasts or advice. Real returns go up and down, and you could get back less than you put in.
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