Your SIPs have run for years. Equity has run up strongly, and your 60:40 plan is now quietly 72:28. That drift means you carry more risk than you signed up for. This guide simply explains portfolio rebalancing, with Indian tax math, so you can act without guesswork.
Key Takeaways
- Portfolio rebalancing restores your target asset mix, such as 60% equity and 40% debt, after market moves cause drift.
- Its purpose is risk control, not higher returns.
- The 5/25 rule: act when an asset class moves 5 percentage points (absolute) or 25% (relative) away from its target.
- Review once or twice a year, and send new SIP money to underweight assets before selling anything.
- Equity fund units sold after 12 months are taxed at 12.5% above ₹1.25 lakh a year. Sales within 12 months are taxed at 20%.
- Check your look-through allocation, because hybrid and multi asset funds mix asset classes inside one scheme.
What is Portfolio Rebalancing and why does it matter for Long-Term Goals?
Portfolio rebalancing is the process of buying and selling investments to bring your asset allocation back to its original target, such as 60% equity and 40% debt. Market movements push weights away from the plan. Rebalancing restores your intended risk level, which protects long-term goals like retirement or a child’s education.
Asset rebalancing works on one simple logic:
- Market gains push winning assets above their target weight.
- Selling a slice of winners and adding to underweight assets resets the allocation.
- Your risk returns to the level you chose for your goals.
Balancing a portfolio is less about predicting markets and more about keeping your risk where you decided it should be. Portfolio rebalancing keeps your investments aligned with your goals and your comfort with risk.
Take a 30-year-old with ₹20 lakh invested for a retirement goal 30 years away. If equity rallies, a plan meant to hold 60% equity can drift to 72% without any decision on your part. A market fall then hurts more than you planned for. If you are still building your savings base, start with these clever ways to save money, then return here.
What is the Purpose of Rebalancing a Portfolio, and Why do it Regularly?
Rebalancing is for risk control, not return maximisation. Over time, winning assets grow into a larger share of your portfolio and quietly raise your risk. Rebalancing sells some of the winners and adds to laggards, so your portfolio keeps the risk level you chose when you set your goals.
Regular rebalancing helps in three ways:
- Risk discipline: your equity share stays near the level you can emotionally and financially handle.
- Behavioural guardrail: a rule replaces gut feel, so you do not chase last year’s winner.
- Goal alignment: as a goal nears, you can deliberately move the target toward debt.
Asset allocation and rebalancing work together: allocation sets the target allocation, and rebalancing brings you back to it when markets pull you away.
Rebalancing is not the same as changing your target. If your goal date or income stability changes, revise the target first. Rebalancing then enforces the new target.
Is Rebalancing a Portfolio a Good Idea?
Yes, for most long-term investors, rebalancing is a good idea because it keeps risk aligned with goals and builds a disciplined buy-low, sell-high habit. It is not a guaranteed return booster. Its value drops when trading costs and taxes are high, so rebalance only when your mix has drifted meaningfully.
| Factor | What happens | India-specific note |
|---|---|---|
| Transaction cost | Frequent trades add cost | Many equity schemes charge an exit load (often up to 1%) within a year. Check the scheme document. |
| Tax | Selling gains triggers capital gains tax | See the tax section below |
| Opportunity cost | Selling winners may cut a continued rally | Rebalancing is risk insurance, not a market call |
A common misconception is that rebalancing raises returns. In a long bull run, an un-rebalanced portfolio can earn more, but with higher risk. Vanguard’s published research on rebalancing found that annual or semiannual checks with thresholds near 5% balance risk control and cost for many portfolios. That study uses US data, so Indian costs and taxes will differ.
Investment portfolio rebalancing does not need frequent trading. A review once or twice a year is enough for many long-term investors.
What is the Best Way to Rebalance a Portfolio?
A practical approach for most investors is a hybrid: review once a year on a fixed date, act only if any asset class has drifted beyond a set band such as 5 percentage points, and use fresh SIP money first before selling anything. This keeps costs and taxes low.
The best way to rebalance portfolio holdings is to pair a fixed review date with a drift trigger, so emotion never decides the trade.
| Strategy | How it works | Suits | Main drawback |
|---|---|---|---|
| Calendar-based | Review on a fixed date, such as 1 April | Busy salaried investors | May trade when drift is tiny |
| Threshold-based | Act when drift crosses a set band | Larger portfolios | Needs regular tracking |
| Cash-flow routing | Send new SIPs and bonuses to underweight assets | SIP investors, tax-sensitive cases | Slow if drift is large |
What is the 5/25 Rule for Rebalancing?
The 5/25 rule is a threshold-based rebalancing guideline: rebalance when any asset class drifts more than 5 percentage points in absolute terms, or more than 25% in relative terms, from its target. The absolute test suits large holdings, while the relative test catches drift in small allocations.
Financial author Larry Swedroe popularised this rule. Here is how it works on a 60:30:10 equity, debt and gold plan:
| Asset | Target | 5-point band | 25% relative band | Effective trigger |
|---|---|---|---|---|
| Equity | 60% | 55% to 65% | 45% to 75% | Below 55% or above 65% |
| Debt | 30% | 25% to 35% | 22.5% to 37.5% | Below 25% or above 35% |
| Gold | 10% | 5% to 15% | 7.5% to 12.5% | Below 7.5% or above 12.5% |
Whichever test is tighter fires first. For gold, the relative band does the work.
How to balance a Mutual Fund Portfolio, Step by Step?
To balance a mutual fund portfolio, set a target mix, calculate your current mix across all folios, measure drift, route new SIPs to underweight categories, and switch or redeem only if drift stays beyond your limit. Check tax and exit load before each switch.
- Set your target mix for each goal, for example, 60% equity, 30% debt, 10% gold.
- Pull a consolidated account statement (CAS) from CAMS and KFintech, or through MF Central, to see every folio in one place.
- Calculate your current mix using current value, not invested amount. If that difference confuses you, read Cost Value vs Current Value.
- Compare with your trigger band. A rising NAV alone does not show drift. Compare the rupee value of each holding to your total.
- Fix drift in order: redirect new SIPs first, then switch or redeem if you are still outside the band.
Portfolio rebalancing in mutual funds is simpler than with stocks, because switches, SIP redirection and STPs can do most of the work.
Do Your Mutual Funds Hide Your Real Asset Allocation?
Yes. A fund’s category label does not always match its true mix. Hybrid, balanced advantage, and multi asset allocation funds hold equity, debt, and gold together, so adding them to a separate equity and debt split can misstate your real split. Calculate your look-through allocation before deciding what to rebalance.
- Aggressive hybrid funds hold 65% to 80% in equity under SEBI’s categorisation.
- Multi asset allocation funds must hold at least 10% each in a minimum of three asset classes (SEBI circular dated 6 October 2017).
- Balanced advantage funds shift equity exposure dynamically, so check the latest monthly factsheet.
- Arbitrage funds are taxed like equity funds but behave closer to debt in risk.
Example: ₹5 lakh in an aggressive hybrid fund is roughly ₹3.25 lakh to ₹4 lakh of equity exposure, not ₹5 lakh of debt or equity. Count it that way before measuring drift.
What Does Rebalancing Cost in India After Tax?
In India, rebalancing is a taxable event when you sell or switch units. For FY 2026-27, equity mutual fund gains held over 12 months are taxed at 12.5% above ₹1.25 lakh, while short-term gains attract a flat 20%. Debt fund gains on units bought after 1 April 2023 are taxed at slab rates.
| Fund type | Holding period | Tax on gains (Tax Year 2026-27) |
|---|---|---|
| Equity-oriented (65%+ equity) | 12 months or less | 20% |
| Equity-oriented (65%+ equity) | Over 12 months | 12.5% above ₹1.25 lakh a year |
| Debt funds bought on or after 1 April 2023 | Any period | Your income tax slab rate |
The Income-tax Act, 2025 now governs this framework, and the Budget 2024 rates apply for Tax Year 2026-27. Section numbers have changed from the older 111A and 112A references, so verify against the latest notification. taxguru
Scenario math (illustrative, not a recommendation):
- Portfolio: ₹20 lakh, target 60:40. After a rally, equity is ₹14.4 lakh (72%) and debt is ₹5.6 lakh (28%).
- Fix: move ₹2.4 lakh from equity to debt. If the equity cost was ₹10 lakh, the gain on those units is about ₹73,333.
- Units held over 12 months: the gain sits under the ₹1.25 lakh exemption, so tax is ₹0 (assuming no other long-term equity gains that year).
- Units held 12 months or less: 20% is ₹14,667, or about ₹15,253 with 4% cess.
- Cash-flow route: a ₹50,000 monthly SIP sent fully to debt closes the gap in about 5 months with no sale, if markets stay flat.
Mutual fund redemptions follow first-in, first-out, so older units sell first. Planning regular withdrawals later? See our guide on SWP taxation.
Does Warren Buffett Rebalance His Portfolio?
Warren Buffett has not described a rebalancing schedule for Berkshire Hathaway, which runs concentrated positions. However, in his 2013 shareholder letter, he described his advice for his wife’s trust: 90% in a low-cost S&P 500 index fund and 10% in short-term government bonds, a simple fixed-weight mix.
The lesson is simplicity. A fixed allocation is easy to monitor and easy to rebalance. Berkshire is an operating company, so it is not a template for a household portfolio.
What are the Best Platforms for Portfolio Rebalancing in India?
Investors in India can rebalance through AMC websites and apps, MF Central (built by CAMS and KFintech), stock-exchange based platforms such as BSE StAR MF, or a distributor or adviser platform. The right choice depends on consolidated holdings view, switch support, tax reports, and whether you want direct or regular plans.
| Platform type | Good for | Watch out for |
|---|---|---|
| AMC website or app | Direct plans within one fund house | Shows only that AMC’s schemes |
| MF Central | Consolidated view and CAS across AMCs | Choose plan type deliberately |
| Exchange-based platforms and apps | Multi-AMC switches and SIP changes | Features vary by app |
| AMFI-registered distributor or SEBI-registered adviser | Guided rebalancing and tax planning | Distributors earn commission in regular plans; advisers charge a fee |
No platform is best for everyone. Verify a distributor’s ARN on the AMFI website and an adviser’s registration on SEBI’s website.
Frequently Asked Questions
How often should I rebalance my mutual fund portfolio?
Once or twice a year is enough for most long-term investors. Pick a fixed date, then act only if an asset class has crossed your drift band, such as 5 percentage points. Reviewing monthly mostly adds exit loads and taxes without improving risk control.
Is switching between schemes in the same fund house taxable?
Yes. A switch counts as a redemption from one scheme and a purchase in another, even within the same fund house. Capital gains tax can apply on the scheme you switch out of. Equity gains follow the 12-month rule, and debt fund gains follow slab rates.
Can I rebalance without selling anything?
Yes. Send all new SIPs, bonuses, and lump sums to the underweight asset until the mix returns to target. This avoids capital gains tax and exit load. It works best when drift is modest and you have regular cash flow.
Should I rebalance if my equity funds have fallen?
Yes. Rebalancing follows weights, not profit. If equity falls below target, you add to equity by redirecting SIPs or moving money from debt. Selling debt units may be taxed at your slab rate, so check gains first.
Does rebalancing work if I hold only one or two funds?
Yes, with a narrower allocation. With a flexi cap fund and a debt fund, compare the rupee split between them. If you hold a single hybrid fund, the fund manager already rebalances inside the scheme, so you only review the overall mix against your goals.
Is the ₹1.25 lakh equity gains exemption per fund or per year?
It applies per financial year, per investor, across all eligible listed shares and equity mutual funds combined, not per fund. Unused exemption does not carry forward. Spreading redemptions across years can reduce tax, so confirm the current limit before planning.
About Wealth Redefine Financial Services LLP: AMFI-registered Mutual Fund Distributor (ARN-167127) and BSE StAR MF partner.
Sources and validation: Income Tax Department and CBDT notifications; SEBI circular on categorisation and rationalisation of mutual fund schemes (6 October 2017); AMFI; Berkshire Hathaway 2013 shareholder letter; Vanguard research on portfolio rebalancing; Investopedia.
Disclaimer: Mutual fund investments are subject to market risks. Read all scheme related documents carefully. This blog is for education only and is not investment advice or a recommendation to buy or sell any scheme. Tax rules change, so confirm current rates with a qualified professional.
