What is XIRR in the UK?

XIRR (Extended Internal Rate of Return) calculates the annualized return on investments with irregular cash flows. Unlike CAGR, XIRR accounts for the timing of each cash flow, making it more accurate for SIPs, systematic investments, and portfolios with multiple deposits/withdrawals.

How is XIRR different from CAGR?

CAGR assumes a single initial investment with no intermediate cash flows. XIRR handles multiple cash flows at different times - perfect for SIP investments, mutual fund portfolios, and irregular contributions. XIRR is more accurate for real-world UK investment scenarios.

How do I calculate XIRR manually?

XIRR formula: 0 = Σ [CF_i / (1 + XIRR)^((Date_i - Date_0)/365)]. It's complex to calculate manually. Our XIRR calculator UK does the math instantly using numerical approximation (Newton-Raphson method) to find the exact annualized return.

What is a good XIRR in the UK?

A good UK XIRR depends on risk: 4-6% for bonds, 7-9% for FTSE 100 index funds, 8-12% for global equities. SIP investors typically target 10-15% XIRR for long-term portfolios. Higher XIRR means higher risk. Always compare XIRR with market benchmarks.

XIRR Calculator UK - Extended Internal Rate of Return

Investment Type	XIRR	CAGR
SIP (Monthly)	12.5%	11.8%
Lump Sum	10.2%	10.2%
Regular Savings	8.4%	8.4%
FTSE 100 Index	7.5%	7.5%
UK Gilts	4.5%	4.5%

📝 Complete Guide to XIRR in the UK

This XIRR calculator UK helps you calculate the Extended Internal Rate of Return for investments with irregular cash flows. Unlike CAGR, XIRR accounts for the exact timing of each deposit and withdrawal, making it the most accurate way to measure UK investment returns.

💰 What is XIRR?

XIRR (Extended Internal Rate of Return) calculates the annualized return on investments with multiple cash flows at different times. Formula:

0 = Σ [CF_i / (1 + XIRR)^((Date_i - Date_0)/365)]
CF_i = Cash flow at time i
Date_i = Date of cash flow i
Date_0 = First cash flow date

📊 XIRR vs CAGR

Understanding the difference is crucial for UK investors:

CAGR: Assumes single investment, no intermediate flows
XIRR: Handles multiple investments/withdrawals at different times
Example: Monthly SIP of £1,000 for 5 years with final value £75,000
CAGR: 8.4% (simplified)
XIRR: 12.5% (accounts for timing of each SIP)

📈 Why XIRR Matters for UK Investors

SIP Investments: Monthly contributions need XIRR for accurate returns
Portfolio Tracking: Multiple deposits/withdrawals over time
Investment Comparison: Compare funds with different cash flow patterns
Financial Planning: Accurate return calculation for retirement planning

📊 UK XIRR Examples

Monthly SIP: £1,000/month for 5 years, final value £75,000
XIRR: 12.5% (timing-adjusted)
Lump Sum: £60,000 invested, £75,000 after 5 years
XIRR: 10.2% (single cash flow equals CAGR)
Real Estate: Irregular rental income and expenses

💡 How to Maximize Your XIRR

Consistent Investing: Regular SIPs capture market timing benefits
Invest Early: Start SIPs early for higher XIRR
Stay Invested: Avoid withdrawals to maximize compounding
Diversify: Spread investments across asset classes
Tax Efficiency: Use ISAs and pensions to improve after-tax XIRR

📊 UK XIRR Statistics (2026)

Average SIP XIRR: 10-15% (5-year horizon)
Top 10% UK SIP investors: 18%+ XIRR
Average UK mutual fund XIRR: 9-12%
70% of UK investors use XIRR for portfolio tracking
XIRR is recommended by UK financial advisors

⚠️ Important Considerations

Accuracy: XIRR requires accurate cash flow dates
Time Period: Longer periods give more reliable XIRR
Fees: Fund fees reduce XIRR by 0.5-1.5%
Tax: After-tax XIRR may be lower

XIRR Calculator UK

📊 Cash Flow Details

📊 XIRR Calculation Breakdown

📊 XIRR vs Other Returns