Portfolio Rebalancing Calculator

What is a Portfolio Rebalancing Calculator?

A Portfolio Rebalancing Calculator is a financial tool that helps investors realign their investment portfolio back to their target asset allocation. Over time, market movements cause some investments to grow faster than others, causing your portfolio to drift from its intended allocation. This calculator shows you exactly how much to buy or sell of each asset class to restore your target allocation.

How Does the Portfolio Rebalancing Calculator Work?

The calculator compares your current asset allocation with your target allocation. For each asset class, it calculates the target value based on your total portfolio value and target percentage. The difference between the target value and current value determines whether you need to buy (if underweight) or sell (if overweight). It also supports adding new cash, which can be used to buy underweight assets without triggering taxable sales.

How to Use This Portfolio Rebalancing Calculator

Enter Asset Details: For each asset class, enter the name, current market value, and target percentage.
Add New Cash (Optional): Enter any fresh capital you plan to invest to rebalance without selling.
Ensure Target Adds to 100%: Your target percentages must total 100% for the calculation to work.
View Recommendations: See buy/sell recommendations for each asset class along with drift percentages.

Why Rebalance Your Portfolio?

Rebalancing is essential for maintaining your desired risk level. Without rebalancing, a portfolio that starts at 60% equity and 40% debt can drift to 75% equity and 25% debt after a bull market, exposing you to more risk than intended. Rebalancing also enforces a disciplined buy-low, sell-high strategy by automatically trimming overperforming assets and adding to underperforming ones.

Rebalancing Strategies

Calendar Rebalancing: Rebalance on a fixed schedule, such as annually or semi-annually. This is simple and disciplined. Threshold Rebalancing: Rebalance when any asset class drifts more than a set threshold (typically 5%) from its target. Cash Flow Rebalancing: Use new contributions to buy underweight assets instead of selling overweight ones. This is the most tax-efficient method as it avoids capital gains taxes.

Also check: Mutual Fund Calculator, SIP Calculator, Lumpsum Calculator, CAGR Calculator, FIRE Calculator, PPF Calculator.

Frequently Asked Questions

How often should I rebalance my portfolio?

Most experts recommend rebalancing annually or when any asset class drifts more than 5% from its target allocation. More frequent rebalancing can increase transaction costs and tax liability without meaningful benefit. For most Indian investors, a yearly review in March or April is sufficient.

Can I rebalance without selling investments?

Yes, this is called rebalancing by contribution. Instead of selling overweight assets, direct all new investments into underweight asset classes. This avoids capital gains taxes entirely and is the most tax-efficient rebalancing method. This calculator supports this by allowing you to add new cash to invest.

What are the tax implications of rebalancing in India?

Selling equity mutual fund units held for over 12 months triggers LTCG tax at 12.5% on gains above Rs 1.25 lakh per year. Units held less than 12 months face STCG at 20%. Debt fund gains are taxed as per your income slab. To minimize taxes, use cash flow rebalancing or tax-loss harvesting strategies.

What is the 5/25 rule for rebalancing?

The 5/25 rule combines absolute and relative thresholds: rebalance when any asset class drifts more than 5 percentage points from its target OR more than 25% of its target weight, whichever is smaller. For a 5% gold allocation, 25% of 5% is 1.25%, so you would rebalance if gold drifts outside 3.75-6.25%.

What happens if I don't rebalance my portfolio?

Without rebalancing, your portfolio can become riskier or more conservative than you intended. After a prolonged bull market, equity allocation can grow significantly, exposing you to higher risk. After a bear market, equity allocation can shrink, potentially reducing long-term returns. Regular rebalancing keeps your risk level consistent with your financial goals.

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