I had one of those FIRE math moments today that completely changed how I think about subscription costs.
I was evaluating whether to try YNAB for budgeting (currently use Beancount for tracking), and I looked at the pricing: $14.99/month or $99/year. The monthly price works out to $180 annually.
Then I did the FIRE math.
The 4% Safe Withdrawal Rule
FIRE planning uses the 4% safe withdrawal rule: you can safely withdraw 4% of your portfolio annually in retirement. Flip that around: every $1 of annual expenses requires $25 in your portfolio.
This is sometimes called the “25x rule”—you need 25 times your annual expenses to retire safely.
YNAB’s True Cost
So let’s calculate YNAB’s true cost for someone pursuing FIRE:
- Annual cost: $180
- Portfolio requirement: $180 × 25 = $4,500
YNAB requires $4,500 in my FIRE portfolio to support the subscription forever.
Wait, It Gets Worse
But that’s just the portfolio requirement. What about opportunity cost?
If I pay $180/year for 10 years:
- Total paid: $1,800
- If invested at 7% instead: $2,487 (future value)
- Total opportunity cost: $1,800 + $687 growth = $2,487
Add the portfolio requirement ($4,500) + opportunity cost ($2,487) = $6,987 lifetime cost over 10 years.
For a budgeting app.
The Subscription Irony
Here’s what got me: YNAB is a tool to help achieve financial independence.
But it creates a permanent expense dependency that requires $4,500 more in your portfolio to support.
The tool meant to accelerate FIRE actually increases your FIRE number.
That’s… ironic.
The Free Alternative
Then I looked at plain text accounting:
- Beancount: Free, open source
- hledger: Free, open source
- ledger: Free, open source
- Fava (Beancount web UI): Free, open source
Portfolio requirement: $0
Opportunity cost: $0 (after initial learning time)
The Trade-Off
Now, there’s definitely a time investment:
- Learning Beancount: ~40 hours initially
- Ongoing maintenance: ~2 hours/month
But that’s one-time learning vs. permanent subscription.
Over 10 years:
- YNAB: $180/year × 10 = $1,800 cash outlay + $687 lost growth + $4,500 portfolio requirement
- Beancount: 40 hours learning + (2 hours × 120 months) = 280 hours total
Is 280 hours worth $6,987?
For me, yes. That’s $25/hour value, plus I own my data and skills forever.
Cumulative Subscriptions
The scarier realization: YNAB isn’t my only subscription.
Most people have:
- Streaming services: $40/month = $12,000 portfolio requirement
- Cloud storage: $10/month = $3,000 portfolio requirement
- Software subscriptions: $50/month = $15,000 portfolio requirement
- YNAB: $15/month = $4,500 portfolio requirement
Total: $115/month = $34,500 portfolio requirement
Each subscription individually seems reasonable. Collectively they require $34,500 additional portfolio to support forever.
The FIRE Perspective
This is why FIRE practitioners obsess over recurring costs.
It’s not about being cheap. It’s about understanding every recurring $1 costs you $25 in portfolio.
For YNAB specifically:
- $14.99/month seems trivial
- $4,500 portfolio requirement is not trivial
My Decision
I’m sticking with Beancount.
Not because YNAB is bad (it’s great for many people). But because:
- I don’t need envelope budgeting (spending already controlled)
- $4,500 portfolio requirement delays FIRE
- I prefer owning my tools and data
- Time investment (280 hours over 10 years) worth the savings
The Question
How do you evaluate subscription costs through FIRE lens?
Do you calculate portfolio requirements for recurring expenses?
What subscriptions have you eliminated to reduce your FIRE number?