Money Market Funds
Money market funds are debt mutual funds that invest only in money market instruments maturing within one year, such as treasury bills, certificates of deposit and commercial paper, suiting short-term parking.
What Are Money Market Funds?
A money market fund is a debt mutual fund that invests in money market instruments having maturity of up to one year, as defined in SEBI's categorisation rules. Money market instruments are short-term borrowing and lending tools used by the government, banks and companies to manage their day-to-day cash needs.
Common money market instruments include:
- Treasury bills (T-bills): Short-term borrowings of the Government of India.
- Certificates of deposit (CDs): Short-term deposits issued by banks in tradable form.
- Commercial paper (CP): Short-term unsecured borrowings by companies and financial institutions.
- Tri-party repo (TREPS) and repo: Very short-term collateralised lending.
These funds exist for investors who want to park money for a few months up to about a year, with relatively low risk and returns linked to short-term interest rates.
How Do Money Market Funds Work?
- Pooling: Investors' money is pooled and invested in a portfolio of money market instruments, each maturing within one year.
- Earning interest: Most of these instruments are issued at a discount and redeemed at face value; the difference is the interest earned.
- Daily NAV changes: Interest accrues daily, and the prices of holdings move slightly with market interest rates.
- Rolling the portfolio: As instruments mature, the fund reinvests in new ones at current rates.
- Managing risk: The fund manager chooses the mix of government, bank and corporate issuers, and the maturity profile, within the scheme's stated limits.
Money market funds cannot invest the residual portion in InvITs, according to SEBI's February 2026 circular, which keeps them focused on short-term instruments.
How interest rate changes affect them
Because holdings mature within a year, the portfolio's sensitivity to interest rates is small. A rough rule of thumb: if a portfolio's duration is about 0.4 years and market yields rise by 0.5 percentage points, prices fall by roughly 0.4 × 0.5 = 0.2%, which is usually recovered through higher interest accrual over the following weeks.
Practical Example
Ankit receives a ₹5,00,000 bonus that he plans to use for a home down payment in six months. He parks it in a money market fund with an assumed annualised return of 7% after expenses.
- Holding period = 6 months = 0.5 year
- Approximate gain = ₹5,00,000 × 7% × 0.5
- = ₹35,000 × 0.5 = ₹17,500
- Approximate value after six months ≈ ₹5,17,500 (before tax)
The actual return could be higher or lower depending on interest rate movements and the fund's portfolio. If short-term rates fell during the period, newly purchased instruments would earn less.
Why Are Money Market Funds Important?
- Short-term goals: They suit money needed in a few months to about a year, such as a planned purchase or an upcoming fee payment.
- Low volatility: Short maturities keep NAV movements small compared with longer-duration debt funds.
- Credit quality matters: CPs carry the credit risk of the issuing company, so portfolio quality affects risk.
- Tax: Money market funds are "specified mutual funds" because they invest almost entirely in debt and money market instruments. For units bought on or after 1 April 2023, gains are taxed at your slab rate regardless of holding period. Check the latest rules or consult a tax adviser.
Key Features
| Feature | Details |
|---|---|
| Instruments | Money market instruments only (T-bills, CDs, CPs, TREPS, repo and similar) |
| Maximum maturity | Up to 1 year per instrument |
| InvITs in residual portion | Not permitted |
| Interest rate risk | Low |
| Credit risk | Low to moderate, depending on issuers |
| Riskometer | Usually low to moderate; check the scheme |
| Exit load | Usually none; check the scheme |
Benefits and Limitations
Benefits
- Low interest rate risk compared with longer-duration funds.
- Typically higher return potential than overnight funds over a few months.
- No lock-in; redeem on any business day.
Limitations
- Returns are not guaranteed and change with short-term interest rates.
- Credit events at a CP issuer can affect NAV.
- Gains taxed at slab rates (for units bought from 1 April 2023).
- Not designed for long-term wealth creation.
Comparison With Related Concepts
| Concept | Maturity/duration rule | Key difference | Practical implication |
|---|---|---|---|
| Overnight fund | 1-day maturity | Lowest risk | For days to a few weeks |
| Liquid fund | Maturity up to 91 days | Can hold debt and money market | For weeks to a few months |
| Money market fund | Money market instruments up to 1 year | Only money market instruments | For a few months to a year |
| Ultra-short duration fund | Macaulay duration 3–6 months | Can hold bonds, not just money market | Similar horizon, may take more credit risk |
| Low duration fund | Macaulay duration 6–12 months | Longer duration | Slightly higher rate sensitivity |
How Do Money Market Funds Apply to Mutual Fund Investors?
- Match horizon: Use them for goals 3–12 months away; for shorter needs, overnight or liquid funds may be more suitable.
- Check the portfolio: Look at the share of T-bills, bank CDs and corporate CPs, and the credit ratings.
- Compare costs: In short-term debt categories, expense ratios significantly affect net returns.
- Use for STP: Some investors park money here before moving it gradually into equity through a Systematic Transfer Plan (STP).
- Review the riskometer and potential risk class disclosed by the AMC.
Common Mistakes and Misconceptions
- "Money market funds are like savings accounts." Correct view: they are market-linked mutual funds, without deposit insurance and with variable returns. Why it matters: NAV can dip in rare situations.
- "All money market instruments are government-backed." Correct view: commercial paper is issued by companies and carries their credit risk. Why it matters: portfolio quality varies across schemes.
- "Money market funds and liquid funds are identical." Correct view: liquid funds are capped at 91-day maturity; money market funds can go up to one year. Why it matters: money market funds can be a little more sensitive to rate changes.
- "Holding longer gives lower tax." Correct view: for units bought from 1 April 2023, gains are taxed at slab rates however long you hold. Why it matters: compare post-tax returns with alternatives.
Important Terms to Know
- Debt Mutual Funds: Funds investing mainly in bonds and money market instruments.
- Liquid Funds: Funds holding instruments maturing up to 91 days.
- Overnight Funds: Funds holding one-day securities.
- Interest Rate Risk: Bond prices falling when rates rise.
- Credit Risk: The chance of an issuer defaulting.
- Liquidity: How easily an investment converts to cash.
- Short-Term, Medium-Term & Long-Term Goals: Classifying goals by time horizon.
Key Takeaways
- Money market funds invest only in money market instruments maturing within one year.
- They suit short-term goals of a few months to a year, with low interest rate risk.
- Credit quality varies across schemes because commercial paper carries issuer risk.
- Gains on units bought from 1 April 2023 are taxed at slab rates.
Related Glossary Terms
- Debt Mutual Funds
- Liquid Funds
- Overnight Funds
- Ultra-Short Duration Funds
- Low Duration Funds
- Interest Rate Risk
- Credit Risk
References
- SEBI circular: Categorization and Rationalization of Mutual Fund Schemes (26 February 2026)
- SEBI circular text (PDF)
- Income Tax Department: Section 50AA, Income-tax Act, 1961 (specified mutual funds)
Educational Disclaimer
This article is published by FynnChintan Finserv, an AMFI-registered mutual fund distributor, for educational and informational purposes only. It is not personalised investment, tax or legal advice, and it does not recommend any specific scheme. Mutual fund investments are subject to market risks; read all scheme-related documents carefully. Regulations and tax rules change from time to time, so please check the latest SEBI and Income Tax rules, and consider your financial goals, risk profile and the scheme documents (or consult a qualified tax adviser) before making a decision.
To choose the right short-term option, explore our guides on Liquid Funds and Ultra-Short Duration Funds.
Frequently Asked Questions
What do money market funds invest in?
They invest only in money market instruments with maturity of up to one year, such as treasury bills, certificates of deposit issued by banks, commercial paper issued by companies, and repo or TREPS. The exact mix depends on the scheme and is shown in the monthly portfolio disclosure.
Are money market funds safe?
They are relatively low-risk because their instruments are short-term, which limits interest rate risk. However, they are not guaranteed. Commercial paper carries the credit risk of the issuing company, and returns change with short-term interest rates. Check the portfolio's credit quality and the scheme's riskometer.
What is the difference between money market funds and liquid funds?
Liquid funds invest in debt and money market securities maturing up to 91 days, while money market funds invest in money market instruments maturing up to one year. Money market funds can therefore earn slightly higher returns when rates are stable, but are a little more sensitive to interest rate changes.
How long should I stay invested in a money market fund?
They are typically suited for horizons of about three months to one year. For a few days or weeks, overnight or liquid funds may be more appropriate. For longer horizons, other debt or hybrid categories may fit better, depending on your risk appetite.
How are money market funds taxed?
Money market funds are specified mutual funds, as they invest more than 65% in debt and money market instruments. For units bought on or after 1 April 2023, gains are added to your income and taxed at your slab rate, regardless of holding period. Check current tax rules or consult a tax adviser.
Do money market funds have an exit load?
Most money market funds do not charge an exit load, but this is scheme-specific. Check the scheme information document or key information memorandum.
This explanation is for general education only and is not investment advice. Mutual fund investments are subject to market risks; read all scheme-related documents carefully.