FIRE time machine

Article, 4 minutes

Step-up investing

Give your monthly investment the same yearly raise as everything else.

Asha sets up a monthly investment of ₹50,000. Five years later she is still investing ₹50,000. Her salary has gone up every year since. Her rent has gone up, and so has what she spends on weekends. The investment is the only line in her budget that never got a raise.

A step-up fixes this. You decide once that your monthly investment rises by a set percentage every year, and then it happens without another decision. With a step-up of 10%, her instalment goes from ₹50,000 to ₹55,000 in the second year. That is ₹5,000 more a month, in a year when her pay also rose.

What it adds up to

After 25 years at 11%, starting from the same amount
  • No step-up₹7.27 Cr (₹1.69 Cr in today's money)
  • Step-up of 5% a year₹10.80 Cr (₹2.52 Cr in today's money)
  • Step-up of 10% a year₹17.47 Cr (₹4.07 Cr in today's money)

All three rows start with the same instalment in the same month. The difference comes only from the yearly raise.

A flat instalment shrinks

An instalment that never changes gets smaller in real terms every year. At 6% inflation, ₹50,000 in 25 years buys what ₹11,650 buys today. A step-up equal to inflation only keeps your investing level. A step-up above inflation is what increases it.

What it does to the date

The example plan, with only the step-up changed
No step-upFIRE at age 61
Step-up of 5% a yearFIRE at age 56
Step-up of 10% a yearFIRE at age 51

Why it is easier than it sounds

Raising your investment by cutting what you already spend is hard, because you feel the loss. Raising it out of a salary increase is different. You never had that money in your monthly budget, so you don't miss it. The step-up has to take effect in the same month as the raise. Once the extra income has been in your account for a few months, you will already be spending it.

Do this week

  1. Check whether your investment platform has a step-up or top-up setting for recurring investments. If it does, switch it on and choose the percentage.
  2. If it has no such setting, put a reminder in your calendar for the month your salary is revised, and raise the instalment by hand that month.
  3. Choose a percentage at least equal to your inflation assumption. If your income grows faster than prices, go higher.

Open the plan with a 10% step-up