Portfolio rebalancing is the process of realigning the weightings of a portfolio of assets to maintain your target allocation. This interactive calculator helps you determine the exact actions needed to bring your portfolio back into balance.
List Your Assets: The calculator starts with a common four-asset portfolio. You can change the names, add new assets with the "Add Asset" button, or remove them with the "✖" button.
Set Target Allocations: Enter your desired allocation percentage for each asset class. Ensure the total sums to 100%.
Enter Current Values: Input the current market value of your holdings for each asset.
Review the Actions: The "Action" column will automatically update, telling you exactly how much you need to buy or sell of each asset to match your target allocation.
Portfolio Rebalancer
Enter your assets, target allocations, and current values to calculate the rebalancing actions needed.
Asset Class
Target Allocation (%)
Current Value ($)
Action
Total
0%
$0.00
Disclaimer: This calculator is for informational and educational purposes only. It does not constitute financial, investment, or tax advice. Always consult with a qualified professional before making any investment decisions.
For a comprehensive guide on portfolio rebalancing, including when and how to rebalance, tax strategies, and real-world examples, visit our full article: Portfolio Rebalancing: The Essential Guide
Frequently Asked Questions
What is portfolio rebalancing?
It is realigning your holdings back to your target allocation after market moves push them off. If stocks run up and become overweight, rebalancing trims them back to your plan.
How does this calculator work?
Enter each asset, its target percentage (totaling 100%), and its current market value. The calculator tells you exactly how much of each asset to buy or sell to return to your targets.
How often should I rebalance?
Common approaches are once a year, or whenever an asset drifts more than about 5 percentage points from its target. Rebalancing too often adds costs and taxes for little benefit.
Why should I rebalance at all?
It keeps your risk level where you intended and enforces buying low and selling high automatically. Left alone, a portfolio drifts toward whatever has run up most, quietly raising your risk.
Does rebalancing trigger taxes?
In a taxable account, selling to rebalance can create capital gains. Rebalancing with new contributions, or inside tax-advantaged accounts, avoids that. Check your own country's rules.
Disclaimer: This calculator reflects my personal views and is for educational purposes only. It is not financial advice. Every situation is different. Always check your country's specific tax and investment rules before acting. See the full Disclaimer and Privacy Policy for the long version.
About the author
LibreLeo is written by Chris W., a full-time options trader and expat
investor based in Dubai, with decades of investing experience across Europe, Africa,
and the Middle East. He runs a passive index core alongside an active options income
overlay: both lanes, one plan. Every calculator on this site runs in your browser on
documented public data, and nothing here is paid placement.
