A recent industry study reveals that three out of four individuals are incorrect about what significantly influences the size of their pension pot upon retirement. The prevailing misconception is that personal contributions account for the largest portion of a pension's value over a working life, with employer contributions being the second most common belief.

Only one in four of the 6,000 adults surveyed, aged 18 to 80, correctly identified investment growth as the most crucial factor in the final value of a retirement fund. According to analysis by finance firm Standard Life, approximately £65,000 of a typical £100,000 pension pot stems from compound investment growth. In contrast, individual contributions typically amount to £18,000, with employer contributions making up £13,000 and government tax relief adding another £4,000.

"Contributions are important, but the real benefit often comes from giving those contributions time to grow and generate returns over decades," stated Jenny Holt, customer savings and investment director at Standard Life. "This is why starting early can make such a difference."

Standard Life's analysis suggests that an individual starting work at age 22 with a £25,000 salary, contributing the minimum auto-enrolment percentages (4% individual, 3% employer, 1% tax relief), could accumulate a fund of £210,000 by age 68. This projection assumes a 5% annual investment growth rate, a 3.5% salary growth rate, 2% inflation, and 0.75% in fees.

Conversely, the same scenario, but delaying the start of pension savings until age 27, would result in a fund of £170,000. This difference is attributed to the reduced time available for investment growth to compound.

"Compound investment growth can be one of the most powerful forces in pension saving, but our research suggests many people underestimate the role it plays," Holt added. "Even modest contributions made earlier in your working life have longer to benefit from potential compound investment growth."

The Standard Life survey indicated that while 25% of respondents recognized investment growth as the primary driver, 39% attributed it to their own contributions, 27% to employer contributions, and 8% to tax relief.

Compound growth occurs when investment returns are reinvested, generating further returns on the increased capital. This process can lead to exponential growth over extended periods.

The study also provided guidance for those concerned about their retirement savings. It advises individuals to review their existing pensions, inquiring about current fund value, transfer values, the type of scheme (defined contribution vs. defined benefit), any guarantees, and projected retirement income. It also recommends using online pension calculators and considering state pension forecasts to estimate total retirement income. The report emphasizes the importance of increasing contributions, especially when employers offer matching schemes or during periods of salary increases.

For those who have lost track of old pension pots, the government offers a free pension tracing service. Caution is advised when conducting online searches, as unofficial services may attempt to charge fees or engage in fraudulent activities.