I track my FIRE progress obsessively. Net worth updates every Friday. Savings rate calculated to two decimal places. I even have a custom Monte Carlo simulator that spits out my FI date.
Problem: it’s usually wrong by Monday.
Last month my portfolio dropped 3%, which according to my model pushed retirement back from age 43 to 44.2 years. I spent the whole weekend stressed, reconsidering my job change, almost pulled the trigger on taking a second consulting client.
Monday came, market bounced 2.5%, retirement was back to 43.1 years.
Here’s what keeps me up: if I update projections daily, I’m constantly reacting to noise. Vanguard says my safe withdrawal rate just dropped to 3.9%, so suddenly my $1.8M target feels insufficient. But if I DON’T update, I’m making decisions on stale data from last quarter—what if market tanks 10% and I didn’t catch it until November?
My gut says most FIRE people recalculate quarterly or annually because daily updates would drive them crazy. But I wonder: are they flying blind? And can Beancount even handle this? Could you automate daily FI date recalculations, or does the computational cost make it unrealistic?
What’s your update cadence? Monthly? Annual? What would it take for you to try daily?
This is exactly why I stopped daily recalculations. Watching the FI number swing 1.2 years in a week isn’t awareness—it’s anxiety theater. I went back to quarterly reviews and honestly? I sleep better and make worse decisions less often. Sometimes stale is less damaging than real-time noise.
Wait, so quarterly = good but daily = bad? What about monthly? Is there research on this or are you just going by feel?
This reminds me of a client who ran daily projections with a spreadsheet. Her FI date swung between 42 and 47 years depending on market moves.
What changed: I recommended separating “plan confidence” from “plan updates.” She still checks net worth weekly (motivating), but recalculates quarterly when she adjusts income or allocation.
The psychological shift was huge. She went from “retirement moved 1.8 years this week” to “my plan absorbs this noise.” Same data, completely different emotions.
Fred, daily updates treat 3% volatility like a plan failure. Most plans can absorb year-to-year swings. Monthly might be the sweet spot—often enough to catch real changes (bonuses, job shifts), not so often you’re reacting to noise.
Claire, I like the “plan confidence” framing. But here’s where I get stuck: if I’m only recalculating quarterly, how do I know when an income change (or market crash) actually requires a decision? Like, what if something genuinely catastrophic happens in month 2 of my quarterly cycle? Do I trust my old projection or break the rule and recalculate?
Maybe that’s the real question nobody’s asking.