Lumpsum Investment Calculator
Forecast one-time capital deployment returns across mutual funds, equities, and index ETFs with annualized compounding.
Lumpsum Investment Inputs
Projected Maturity Wealth (10 Years)
₹₹6,49,464.21
Wealth Multiple: 3.25x initial investment
Total Invested
₹₹2,00,000.00
Estimated Returns
₹₹4,49,464.21
Compound Interest Formula for One-Time Investment
All calculations on InvestResearch India execute with 28-digit precision arithmetic via decimal.js, eliminating floating-point drift and adhering to statutory regulatory conventions.
Example: ₹5,00,000 One-Time Lumpsum for 10 Years @ 12.5% CAGR
Initial Investment: ₹5,00,000 | Annual CAGR: 12.5% | Time Period: 10 Years
1. Multiplier (1 + 0.125)^10 = (1.125)^10 = 3.2473 2. Future Value FV = ₹5,00,000 × 3.2473 = ₹16,23,660 3. Wealth Multiplier = 3.25x your invested capital 4. Estimated Capital Gain = ₹16,23,660 - ₹5,00,000 = ₹11,23,660
Statutory Tax Framework (Union Budget FY 2026–27)
For equity mutual funds held longer than 1 year, capital gains are classified as Long-Term (LTCG) and taxed at 12.5% on amounts above ₹1.25 Lakhs per financial year under Section 112A.
Frequently Asked Questions
When should I invest lumpsum vs setting up an STP or SIP?
If you receive a large windfall (bonus, property sale, inheritance), investing all at once in equity markets during elevated valuations carries drawdown risk. A prudent institutional approach is parking the capital in an Arbitrage or Liquid fund and executing a Systematic Transfer Plan (STP) into equity funds over 6 to 12 months.
What is the Rule of 72 in lumpsum investing?
The Rule of 72 estimates how many years it takes for your lumpsum to double. Divide 72 by your expected annual return rate. At 12% CAGR, your money doubles in approximately 72 / 12 = 6 years.