Retirement calculator: How a large age gap between your children could derail your retirement plans

Many parents choose to have a second child several years after their first due to career, financial stability or personal reasons. While the decision may be emotionally rewarding, it often changes long-term financial planning by extending education expenses closer to retirement.

Parents may find themselves paying for the elder child's college education while simultaneously funding preschool, childcare and healthcare for the younger child. They may also need a larger home, higher insurance cover and continued retirement savings, making cash flow management more challenging.

Consider a 38-year-old couple planning to retire at 55 with a ₹5 crore retirement corpus. After planning for a second child, they reduce monthly retirement investments to fund another education corpus. As a result, they may either retire with only about ₹2 crore or continue working for around six more years to reach their original goal.

Experts advise against combining both children's education goals into a single investment pool. Since education timelines, inflation and investment horizons differ, each child should have a dedicated goal-based portfolio that is reviewed regularly and adjusted as needed.

Parents should account for 10-12% annual education inflation, especially for overseas education. Because the younger child has a longer investment horizon, experts recommend maintaining a higher equity allocation initially and gradually shifting towards debt investments as the education goal approaches.

Financial planners caution that parents can borrow for education if required, but they cannot borrow for retirement. Retirement savings should be ring-fenced through EPF, NPS or dedicated mutual fund investments and should not be used for children's education or weddings.

A new child also means revisiting life insurance, health insurance, nominations, wills and guardianship plans. Parents should ensure both children are adequately protected and that the family's financial plan reflects the changed responsibilities and future needs.

Experts recommend maintaining separate portfolios for retirement and each child's education, increasing SIPs by 10-15% every year, reviewing investments annually and keeping lifestyle spending within a planned budget. The key is to support both children without compromising long-term financial independence.