How to Use This Advanced SIP Calculator

This is a CA-grade SIP planning engine — not a basic SIP calculator. It models real-world wealth accumulation with step-up SIP, goal-based reverse calculation, LTCG tax impact and inflation adjustment. Here is how to get the most out of every feature:

Choose Your Mode — Project or Goal Target
Project Mode is for answering “I invest ₹X per month — how much will I have?” Enter your SIP amount, return rate and time period to see the projected maturity value.
Goal Target Mode is for answering “I want ₹1 crore — how much do I need to invest?” Enter your target corpus, return rate and tenure to see the required monthly SIP — both with and without annual step-up.
Set Monthly Investment (Project Mode) — Use the slider or type directly. This is your monthly SIP amount — the fixed sum you invest every month into a mutual fund. Even ₹5,000 per month can build significant wealth over time. Adjust this to see how different amounts compare.
Set Target Corpus (Goal Mode) — Enter your financial goal — for example ₹50 lakh for a child’s education, ₹1 crore for a home down payment, or ₹5 crore for retirement. The calculator instantly tells you the required monthly SIP to hit that target.
Set Expected Return Rate — Enter the CAGR (Compound Annual Growth Rate) you expect from your mutual fund. Historically, large cap equity funds have delivered 11-13% CAGR, mid cap funds 13-16%, and small cap funds 14-18% over 10+ year periods. Use a conservative rate for planning — typically 10-12% for equity funds.
Set Time Period — Enter the number of years you plan to invest. The longer the period, the more dramatically compounding works in your favour. Try changing tenure from 10 to 20 years to see how powerfully time impacts wealth creation.
Enable Advanced Planning — Click “Advanced Planning” to unlock two powerful features. Annual Step-Up % increases your SIP every year matching your salary growth — a 10% step-up on a ₹10,000 SIP means ₹11,000 next year, ₹12,100 the year after, and so on. Inflation % shows you the real purchasing power of your maturity corpus in today’s money — critical for retirement planning.
Read the Tax Impact Panel — The dark panel shows your LTCG Tax (Long Term Capital Gains tax at 12.5% on gains above ₹1.25 lakh), Post-Tax Value (what you actually take home), and Inflation-Adjusted Value (the real worth of your corpus in today’s purchasing power). This is the most important panel — most SIP calculators skip tax entirely, giving you an inflated and unrealistic picture.
Read the Wealth Projection Chart — The stacked area chart shows two lines — the indigo area is your invested capital growing year by year, and the green area above it is your returns. The gap between them is your wealth creation engine. Hover over any point to see the exact figures for that year.
Use the Year-wise Breakdown Table — Scroll down to see the complete year-by-year table showing your monthly SIP amount (increases each year if step-up is enabled), cumulative amount invested, total returns, and portfolio value at the end of each year.

💡 CA Tip — Why This Calculator Shows Lower Numbers Than Others: Most SIP calculators show you the pre-tax, pre-inflation maturity value — which is an optimistic but unrealistic number. This calculator deducts LTCG tax (12.5% on gains above ₹1.25 lakh) and then adjusts for inflation to show you what your corpus is actually worth in today’s purchasing power. If your calculator shows ₹2 crore but taxes and inflation knock it down to ₹1.1 crore in real terms — that is the number that matters for retirement planning.

What is a SIP — Systematic Investment Plan Explained

A Systematic Investment Plan (SIP) is a method of investing a fixed amount in a mutual fund at regular intervals — typically monthly. Rather than investing a large lump sum at once, SIP allows you to invest small amounts consistently over a long period, harnessing the twin powers of rupee cost averaging and compounding.

Core Mechanism

📅 How SIP Works

Every month on your chosen date, a fixed amount is debited from your bank account and invested in your chosen mutual fund scheme at the current NAV (Net Asset Value). You receive units based on that day’s NAV. When the NAV is low, you get more units. When the NAV is high, you get fewer units. Over time, your average cost per unit is lower than the market average — this is Rupee Cost Averaging.

The Power

📈 Why SIP Works

SIP works because of three factors working together. First, compounding — your returns generate their own returns over time, creating exponential growth. Second, rupee cost averaging — investing regularly regardless of market levels smooths out volatility. Third, discipline — automating investments removes the temptation to time the market, which even professional investors consistently fail at.

SIP vs Lump Sum — Which is Better?

Parameter	SIP Investment	Lump Sum Investment
Entry Risk	Low — spread across multiple NAVs	High — single entry point
Market Timing Required	No — invest every month regardless	Yes — ideally invest at market lows
Minimum Amount	As low as ₹500/month	Typically ₹5,000 minimum
Suitable For	Salaried individuals with regular income	Investors with a large corpus to deploy
Performance in Bull Markets	Slightly lower returns than lump sum	Higher returns if timed correctly
Performance in Bear Markets	Better — buys more units at lower prices	Lower — full corpus exposed to decline
Psychological Ease	High — set and forget automation	Low — requires market conviction
Tax Treatment	Each SIP installment has its own holding period	Single holding period for entire investment

How SIP Returns are Calculated — The Formula

SIP returns are calculated using the Future Value of Annuity formula — a standard financial mathematics formula that accounts for the monthly compounding of returns on each installment. Here is the exact formula this calculator uses:

SIP Future Value Formula

FV = P × [(1 + r)ⁿ – 1] ÷ r × (1 + r)

Where: P = Monthly SIP amount (₹)

r = Monthly return rate = Annual CAGR ÷ 12 ÷ 100

n = Total number of monthly installments = Years × 12

The (1 + r) at the end represents beginning-of-month investment timing (SIP typically invested at month start)

Example — ₹10,000/month SIP at 12% CAGR for 15 Years

Monthly Rate (r) = 12 ÷ 12 ÷ 100 = 0.01

n = 15 × 12 = 180 months

FV = 10,000 × [(1.01)¹⁸⁰ – 1] ÷ 0.01 × 1.01

FV = 10,000 × [5.9958 – 1] ÷ 0.01 × 1.01

FV = 10,000 × 499.58 × 1.01

Total Invested = ₹18,00,000 | Maturity Value = ₹50,45,766

Returns = ₹32,45,766 — your ₹18 lakh investment nearly tripled in 15 years at 12% CAGR. This is the power of SIP compounding.

LTCG Tax on SIP Returns — What Every Investor Must Know

Long Term Capital Gains (LTCG) tax is the single most important factor that most SIP calculators completely ignore — and it significantly impacts your real take-home value. Here is everything you need to know about how LTCG applies to your SIP investments:

The LTCG Tax Rules for Equity Mutual Funds (FY 2025-26)

Long Term

📊 LTCG — Held Above 12 Months

Tax Rate: 12.5% (effective from 23rd July 2024)
Exemption: First ₹1,25,000 of LTCG per financial year is tax-free
No indexation benefit available
Applies to: Equity mutual funds, equity ETFs, listed shares
Effective rate with 4% cess: approximately 13% on taxable gains

Short Term

⚡ STCG — Held Below 12 Months

Tax Rate: 20% (effective from 23rd July 2024)
No exemption limit — applies on all STCG
Applies when you redeem SIP units within 12 months of each installment
Key point: Each SIP installment has its own 12-month clock for STCG/LTCG classification
Effective rate with 4% cess: 20.8%

The SIP-Specific LTCG Complexity — First In, First Out (FIFO)

Here is the critical nuance that most investors miss: when you redeem your SIP, the units sold are considered in FIFO (First In First Out) order — meaning the oldest units are sold first. This is actually beneficial for long-term SIP investors because the oldest units are the most likely to qualify as long-term (held above 12 months).

However, for an SIP running say 3 years, when you redeem at the end of Year 3, the units from Year 1 and Year 2 are LTCG (held above 12 months) but the units from the last 12 months are STCG. This calculator simplifies by treating all gains as LTCG for long-duration projections — which is the most practically relevant scenario for SIP investors with a 5+ year horizon.

Example — LTCG Tax Impact on ₹10,000/month SIP for 20 Years at 12%

Total Invested: ₹24,00,000

Maturity Value: ₹ 99,91,481 (approximately ₹1 crore)

Total Gains: ₹75,91,481

LTCG Tax = (₹75,91,481 – ₹1,25,000) × 12.5% = ₹74,66,481 × 12.5% = ₹9,33,310

Post-Tax Value = ₹99,91,481 – ₹9,33,310 = ₹90,58,171

LTCG tax reduces your ₹99.9 lakh pre-tax value to ₹90.6 lakh post-tax — a reduction of ₹9.3 lakh. This is why pre-tax SIP projections are misleading for financial planning purposes.

💡 Tax Harvesting Strategy: The ₹1.25 lakh LTCG exemption per financial year can be strategically used to reduce your total tax burden. By redeeming and reinvesting ₹1.25 lakh of gains every year (called “tax harvesting”), you reset your cost basis annually and avoid accumulating a large taxable gain at maturity. This is a perfectly legal strategy recommended by many CAs and financial planners. Our team can help you plan this as part of your overall tax optimisation.

Step-Up SIP — The Most Powerful Wealth Building Tool

A Step-Up SIP (also called a Top-Up SIP) automatically increases your monthly SIP amount by a fixed percentage every year. This mirrors your salary growth and ensures your investments keep pace with your rising income. The impact on long-term wealth is dramatic — often doubling or tripling the corpus compared to a flat SIP at the same starting amount.

Example — Flat SIP vs 10% Annual Step-Up SIP at 12% CAGR for 20 Years

Starting SIP Amount: ₹10,000/month in both cases

Flat SIP (no step-up): Total Invested = ₹24,00,000 | Maturity = ₹99,91,000

10% Step-Up SIP: Total Invested = ₹68,73,000 | Maturity = ₹2,13,27,000

Step-Up SIP generates ₹1,13,36,000 more corpus than a flat SIP. The additional investment is ₹44,73,000 (more capital deployed), and the additional return is ₹68,63,000 (more compounding on a larger base). Enable the Annual Step-Up % in Advanced Planning above to model this for your specific scenario.

How to Set Up a Step-Up SIP With Your Mutual Fund

Most AMCs (Asset Management Companies) offer a Step-Up or Top-Up SIP option at the time of new SIP registration
You can specify a fixed annual increase amount (e.g. ₹1,000 more per year) or a percentage increase (e.g. 10% per year)
Once set up, the increase happens automatically on the anniversary of your SIP — no manual action required
You can modify or pause the step-up at any time through the AMC’s app or website
The optimal step-up percentage is your expected annual salary hike — typically 8-12% for most professionals

Inflation-Adjusted Returns — Why Your Real Corpus is Lower Than You Think

India’s average inflation rate has historically been 5-7% per year. This means that ₹1 crore twenty years from now has the purchasing power of only about ₹31-39 lakh in today’s money at 5% inflation. Retirement planning that ignores inflation dramatically overestimates how much you will actually have.

Nominal Corpus (20 Years)	Real Value at 5% Inflation	Real Value at 6% Inflation	Real Value at 7% Inflation
₹50 Lakh	₹18.8 Lakh	₹15.6 Lakh	₹12.9 Lakh
₹1 Crore	₹37.7 Lakh	₹31.2 Lakh	₹25.8 Lakh
₹2 Crore	₹75.4 Lakh	₹62.4 Lakh	₹51.6 Lakh
₹5 Crore	₹1.88 Crore	₹1.56 Crore	₹1.29 Crore

⚠️ The Retirement Planning Reality Check: If you plan to retire in 25 years and want a monthly expense of ₹1,00,000 in today’s money, you will actually need approximately ₹3,38,000 per month at 5% inflation. Your corpus must be large enough to generate this income while preserving principal. Enable the Inflation % field in this calculator and use 6% as a realistic Indian inflation assumption. The inflation-adjusted figure shown is the number that actually matters.

Goal-Based SIP Planning — How Much to Invest for Each Goal

The Goal Target mode of this calculator is designed for goal-based financial planning. Switch to Goal Target mode, enter your target corpus, and the calculator instantly tells you the required monthly SIP — both flat and with step-up. Here are benchmarks for common Indian financial goals:

Child Education

₹50L

15 Years Away

Requires approximately ₹10,000/month at 12% CAGR. Start early — same goal in 10 years needs ₹20,000/month.

Home Down Payment

₹30L

5 Years Away

Requires approximately ₹37,000/month at 12% CAGR. Use a balanced or hybrid fund for 5-year goals, not pure equity.

Child’s Wedding

₹25L

20 Years Away

Requires approximately ₹2,500/month at 12% CAGR. This is one of the most achievable goals with a small consistent SIP.

Retirement Corpus

₹5Cr

25 Years Away

Requires approximately ₹27,000/month at 12% CAGR. With a 10% annual step-up, starting SIP of just ₹14,000/month achieves the same goal.

Emergency Fund

₹10L

3 Years Away

Requires approximately ₹25,000/month at 7% CAGR (use liquid or short-duration debt fund — not equity for 3-year goals).

Car Purchase

₹15L

4 Years Away

Requires approximately ₹26,000/month at 10% CAGR. Alternatively, a lower SIP plus a smaller car loan — compute both options.

Which Mutual Fund to Choose for Your SIP

The return rate you enter in this calculator is the most important assumption — and it depends entirely on which category of mutual fund you choose. Here is the complete guide to expected returns by fund category:

Fund Category	Historical 10-Year CAGR	Risk Level	Suitable Horizon	Use This Rate In Calculator
Large Cap Equity Funds	11–13%	Moderate	7+ years	11%
Flexi Cap / Multi Cap Funds	12–15%	Moderate-High	7+ years	12%
Mid Cap Equity Funds	13–16%	High	10+ years	13%
Small Cap Equity Funds	14–18%	Very High	12+ years	14%
Index Funds (Nifty 50)	11–12%	Moderate	7+ years	11%
Hybrid / Balanced Advantage Funds	9–11%	Low-Moderate	5+ years	10%
Debt / Short Duration Funds	6–8%	Low	1–3 years	7%
Liquid Funds	5–7%	Very Low	1–90 days	6%

⚠️ Past Returns Are Not Guaranteed: The historical CAGR figures above are for reference and planning purposes only. Mutual fund returns are subject to market risk. The actual returns on your SIP may be higher or lower depending on market conditions during your investment period. Always use a conservative return assumption in your planning — we recommend using 10% for large cap and 12% for diversified equity funds as conservative planning benchmarks.

Frequently Asked Questions — SIP Calculator

What is the minimum SIP amount I can start with in India?

Most mutual fund AMCs in India allow SIP investments starting from ₹100 to ₹500 per month, depending on the scheme. Popular platforms like Zerodha Coin, Groww, Paytm Money, and direct AMC websites allow starting with ₹500 per month. Some specific schemes like ELSS funds for tax saving under Section 80C have a minimum SIP of ₹500. There is no maximum limit on SIP amount. For tax-saving ELSS SIPs, note that the Section 80C deduction is capped at ₹1.5 lakh per year — a monthly SIP of ₹12,500 exactly exhausts this limit. This calculator works for any SIP amount from ₹500 to ₹5,00,000 per month.

How is LTCG tax calculated on SIP redemptions — is it on total gains or year by year?

LTCG tax on SIP redemptions is calculated on a First In First Out (FIFO) basis — the oldest units you purchased are considered sold first. Each SIP installment starts its own 12-month clock for LTCG classification. When you redeem, the gains on each batch of units (from each monthly installment) are computed separately, and the ₹1,25,000 annual exemption applies across all your equity LTCG in that financial year. For a long-running SIP of 10+ years, virtually all units at the time of redemption will qualify as LTCG (held above 12 months), making LTCG at 12.5% the applicable rate. This calculator applies LTCG at 12.5% on total gains above ₹1.25 lakh — which is the practically relevant scenario for long-duration SIP investors.

Should I invest in ELSS (tax saving) SIP or regular equity SIP?

ELSS (Equity Linked Savings Scheme) SIPs qualify for Section 80C deduction up to ₹1.5 lakh per year under the Old Tax Regime, with a 3-year lock-in period per installment. If you are in the Old Tax Regime and have not exhausted your 80C limit, ELSS SIPs offer a double benefit — market-linked returns plus tax deduction of up to ₹46,800 per year (30% bracket). However, under the New Tax Regime, Section 80C deductions are not available, making ELSS tax benefit irrelevant. The investment case should then be evaluated purely on fund performance. For most salaried individuals in the 30% tax bracket who are in the Old Regime, maximising ELSS SIP up to ₹12,500/month (₹1.5 lakh/year) is one of the best financial decisions available.

What is the difference between XIRR and CAGR for SIP returns?

CAGR (Compound Annual Growth Rate) measures the single-point-to-single-point growth rate of an investment and is appropriate for lump sum investments. For SIPs where multiple installments are invested at different times, XIRR (Extended Internal Rate of Return) is the more accurate measure because it accounts for the timing of each cash flow. When a fund says “SIP XIRR of 15%”, it means accounting for the fact that some installments were invested more recently (and had less time to grow) while others were invested earlier. This calculator uses the standard SIP Future Value formula which produces the mathematically correct maturity value — the XIRR of the projected returns is approximately equal to the return rate you enter. When comparing your actual SIP performance, use the XIRR function in Excel or check the XIRR figure on your mutual fund platform.

Can I pause or stop a SIP without penalty?

Yes — most mutual funds allow you to pause a SIP for 1-3 months or stop it entirely without any penalty. The units you have already accumulated remain invested and continue to grow. Stopping a SIP does not trigger any redemption or capital gain — your money stays in the fund. However, stopping a SIP frequently or pausing during market crashes (when you should ideally be buying more units cheaply) is counterproductive. The discipline of continuing SIP investments through market downturns is a key driver of long-term SIP returns. If you face financial stress and must pause, do so — but restart as soon as possible. Missing even 12-24 months of SIP in a 15-year plan has a surprisingly small impact on final corpus.

How much SIP do I need to save ₹1 crore?

The monthly SIP required to accumulate ₹1 crore depends on your time horizon and expected return rate. Use the Goal Target mode in this calculator for your exact figure. As quick benchmarks: at 12% CAGR, you need approximately ₹43,000/month for 10 years, ₹19,000/month for 15 years, ₹8,000/month for 20 years, or ₹3,000/month for 25 years. These numbers demonstrate the single most important principle in wealth creation — time is more powerful than the amount invested. Starting a ₹3,000 SIP at age 25 creates the same ₹1 crore as a ₹43,000 SIP started at age 45 — but costs 93% less total investment capital. Start early, stay consistent.

Is SIP income taxable? Do I need to declare it in my ITR?

SIP investments themselves are not income — they are investments. Tax liability arises only when you redeem (sell) your mutual fund units. At the time of redemption, LTCG (gains on units held above 12 months) at 12.5% above ₹1.25 lakh and STCG (gains on units held below 12 months) at 20% apply for equity mutual funds. In your ITR, you must declare capital gains from mutual fund redemptions in Schedule CG. Your AMC or mutual fund platform provides a Capital Gains Statement every year (available in your account or via CAMS/Karvy) which lists all redemptions, purchase dates, purchase NAV and gain/loss — use this document directly when filing your ITR. If you have not redeemed any units in a financial year, there is no capital gains tax and nothing to declare for that year.

Plan Smarter — Tax Smarter

SIP investments build wealth — but smart tax planning on your investments preserves it. Our Chartered Accountants help you with LTCG tax harvesting, ELSS optimisation, regime selection and accurate ITR filing with all capital gains declared correctly. CA-assisted ITR filing starting at ₹599.

View Our CA Services →