Yes — inflation is a legitimate factor to consider, especially when projecting costs that are many years in the future, such as your children’s college education. The DIME calculator uses today’s dollars, which is the standard and appropriate starting point. Here is how to incorporate an inflation adjustment in a practical way:
- ›For Education: College tuition has historically increased at approximately 4% per year. If your youngest child is 3 years old and won’t enroll for 15 years, multiply your current per-child estimate by approximately 1.8 (the rough factor for 15 years at 4%). A $60,000 today estimate becomes ~$108,000 in inflation-adjusted terms.
- ›For Income: General inflation averages 2.5–3% per year historically. Over 20 years of income replacement, this erodes purchasing power significantly. A conservative approach is to add 10–20% to your income replacement total as an inflation buffer.
- ›For Debt and Mortgage: These are fixed nominal obligations — inflation does not meaningfully change them. Use current balances as-is.
As a practical rule of thumb: if you want a simple inflation buffer without complex calculations, add 15% to your total DIME result. This provides a reasonable cushion for most households over a 15–20 year policy horizon.