This year I wrote 200 lines of Python instead.

→ Bitcoin Tax Calculator (free, public, runs in your browser): https://huggingface.co/spaces/Exitvelocitybtc/bitcoin-tax-calculator

What it does

Paste your buy/sell transactions as CSV. Pick a cost basis method. Get:

• Long-term vs short-term capital gains breakdown

• Side-by-side FIFO / LIFO / HIFO comparison (find your tax-optimal method)

• Estimated federal tax liability (2026 brackets)

• IRS Form 8949 CSV export

• Shareable summary graphic for X or Nostr

No signup. No account. No data storage. Your transaction CSV is processed on Hugging Face’s compute during your session and disappears the moment you close the tab.

Why I built it

Self-custody Bitcoiners hold our own keys for a reason. We don’t trust third parties with our wealth. So uploading our entire transaction history to a cloud-based tax service — where it lives forever, indexed and queryable — is the exact opposite of why we’re here.

Koinly is $99-499/year and wants your full wallet history.

CoinTracker is $99/year and wants your full wallet history.

ZenLedger is $149-999/year and wants your full wallet history.

A 200-line script handles 99% of what these tools do. The other 1% (DeFi integrations, NFT trades, 14 chain bridges) doesn’t matter to a self-custody Bitcoiner with two buys and a sell.

The cost basis methods, in plain numbers

Same portfolio. Same sale. Three different tax outcomes.

Example: You bought 0.05 BTC at $29,000 in Jan 2023, then 0.04 BTC at $30,000 in March 2023, then 0.06 BTC at $30,833 in June 2023. You sold 0.03 BTC in August 2024 at $60,000.

FIFO (oldest first): $930 gain → ~$140 federal tax

LIFO (newest first): $725 gain → ~$110 federal tax

HIFO (highest cost first): $725 gain → ~$110 federal tax

That’s $30 of tax savings on a tiny example. Scale that to 1 BTC of disposals and the difference becomes hundreds or thousands of dollars. The IRS permits all three methods under specific-identification rules — you just need the records.

The calculator runs all three side-by-side so you can pick the one that minimizes your bill.

Privacy architecture

Your data flow:

1. You paste CSV into the tool

2. Hugging Face’s compute parses it, runs the math

3. Result returns to your browser

4. You close the tab; the session evaporates

What’s NOT happening: no data is saved to a database. No data is shared with anyone (not me, not HF, not the IRS — you do that part yourself). No account exists for you. No email is collected unless you separately subscribe to this newsletter.

Limitations (honest)

• US federal tax estimates only (no state tax, no NIIT, no AMT, no foreign reporting)

• BTC only — no shitcoins, no DeFi, no NFTs (by design)

• Simplified for single filer

• Not tax advice — talk to a CPA for your situation

Try it

https://huggingface.co/spaces/Exitvelocitybtc/bitcoin-tax-calculator

The example data is pre-filled. Click Calculate. See the numbers. Then paste your own and see yours.

Want to track this ongoing?

The calculator is the free entry point. The full spreadsheet bundle — Sats Stacking Tracker + Cost-Basis Tracker + the Bitcoin Holder Toolkit — runs forever, offline, on your machine. $24.99 lifetime, no subscription.

https://exitvelocity.gumroad.com/l/ntwxnd

We are Exit Velocity. Think in Bitcoin.

Welcome to The Receipt — a weekly newsletter where we take one real price tag from everyday life and trace it back to the money.

Not the politics. Not the outrage. The math.

This week's receipt: a routine doctor visit.

In 1970, a standard office visit to your family doctor cost about $10. That's not adjusted for anything. That's the literal price. You walked in, saw the doctor, maybe got your blood pressure checked, maybe got a prescription written on a pad, and you walked out. Ten dollars. Some visits were less.

Your grandparents didn't have "health savings accounts." They didn't need them. A doctor visit was the same price as a pizza.

Today, a routine office visit — no tests, no imaging, no procedures, just a 15-minute conversation with a primary care physician — costs $150 to $300 without insurance. The national average for a new patient visit is $357. If you need bloodwork, add another $100 to $350. An X-ray? Another $150 to $500.

That's a 30x increase on the base visit alone. From $10 to $300.

Meanwhile, wages have grown roughly 6x since 1970. The median household income went from about $9,800 to around $60,000.

So the visit costs 30 times more, but you earn 6 times more. You're losing ground by a factor of five.

This is the part nobody puts on the receipt.

Everyone has a theory about why healthcare costs exploded. Insurance companies. Big Pharma. Regulation. Malpractice lawsuits. Hospital mergers. And sure — all of those played a role.

But there's a number that explains more than all of them combined: total U.S. healthcare spending per person went from $353 per year in 1970 to $15,474 per year in 2024. That's a 44x increase. In the same period, overall consumer prices rose about 8x.

Healthcare didn't just get more expensive. It got more expensive five times faster than everything else.

The medical care price index has outpaced the general CPI for over fifty consecutive years. Since 2000 alone, medical care prices are up 121% while overall consumer prices rose 86%. This isn't a blip. It's structural.

And the structure traces back to the same place it always does: the money supply. In 1970, the M2 money supply was about $600 billion. Today it's over $21 trillion. That's a 35x expansion. When you multiply the dollars in circulation by 35, prices don't stay the same — they rise to absorb the flood. And sectors like healthcare, where demand is inelastic (you can't just not go to the doctor), absorb more of that flood than almost anything else.

The government prints money. That money flows through insurance companies, Medicare, Medicaid, and hospital systems. It inflates administrative costs, facility costs, compliance costs, and pharmaceutical costs. By the time it reaches your bill, the damage is done. You're paying 2026 prices on a 1990 salary structure.

The math

In 1970, that $10 doctor visit represented about 0.1% of the median household income — roughly one hour of work at the median wage.

Today, a $300 visit represents about 0.5% of median household income — closer to four or five hours of work.

You now work five times longer to see the same doctor for the same checkup. And that's before insurance premiums. The average American family pays $24,000 per year in health insurance premiums — that alone is 40% of the median individual income. Your grandparents didn't pay health insurance premiums in 1970. The entire concept barely existed for most working families.

The dollar has lost over 87% of its purchasing power since 1970. A dollar in 1970 had the buying power of about $8.30 today. But in healthcare, the erosion is even worse — your dollar buys roughly 95% less medical care than it did in 1970.

The exit

Now measure the same doctor visit in Bitcoin.

In January 2015, Bitcoin was about $250. A $200 doctor visit cost 0.8 BTC.

Today, Bitcoin is around $104,000. That same $300 doctor visit costs 0.0029 BTC — less than 300,000 satoshis.

That's a 99.6% decrease in the cost of a doctor visit when measured in Bitcoin.

The visit didn't get cheaper. The doctor didn't take a pay cut. Nothing about healthcare changed.

The money changed.

The dollar is designed to lose value — that's not a conspiracy, it's the stated policy target of 2% annual inflation (which compounds to massive erosion over decades). Bitcoin is designed to do the opposite. Fixed supply. 21 million coins. No one can print more. No central bank. No emergency expansion. The longer you hold it, the more purchasing power it gains — because the denominator doesn't expand.

Your grandparents' $10 doctor visit wasn't cheap because healthcare was simple. It was cheap because the dollar was strong. The dollar isn't strong anymore. And it's not going to get stronger.

That's the receipt.

This week's numbers

Doctor visit (1970): ~$10 — about 1 hour of median wage work

Doctor visit (2026): ~$300 — about 4-5 hours of median wage work

Per capita healthcare spending (1970): $353/year

Per capita healthcare spending (2024): $15,474/year — a 44x increase

Doctor visit in Bitcoin (2015): ~0.8 BTC

Doctor visit in Bitcoin (2026): ~0.0029 BTC — a 99.6% decrease

Dollar purchasing power lost since 1970: ~87%

M2 money supply expansion since 1970: ~35x ($600B → $21T+)

A checkup used to cost ten bucks. Not because medicine was primitive. Because the money was sound. Do the math.

Exit Velocity is a weekly newsletter about what your money is really doing — and what you can do about it. If this hit home, share it with someone who's noticed their paycheck doesn't go as far as it used to.

Follow @ExitVelocityBTC on YouTube, Instagram, X, Nostr, and Podcasts.

Think in Bitcoin.

Free Bitcoin tax calculator (FIFO / LIFO / HIFO, no signup): https://huggingface.co/spaces/Exitvelocitybtc/bitcoin-tax-calculator

Welcome to The Receipt — a weekly newsletter where we take one real price tag from everyday life and trace it back to the money.

This week's receipt: a year of daycare.

In 1990, full-time daycare for one child cost about $4,000 a year. It wasn't cheap, but it was manageable. A family could budget for it without a spreadsheet and a panic attack.

Today, the national average is $15,000. For an infant, it's $18,000. In states like Massachusetts and Washington, D.C., you're looking at $25,000 or more — per child.

That's a 275% increase since 1990.

Wages over that same period? Up about 60%.

Read that again. The cost of having someone watch your kid while you go to work has nearly quadrupled. Your paycheck hasn't even doubled. And if you have two kids in daycare at the same time, you're now spending more than many families pay for their mortgage.

Here's the part that makes your stomach turn: in over half of U.S. states, daycare now costs more than in-state college tuition. Your kid hasn't even learned to read yet, and you're already paying university prices.

This is the part nobody puts on the receipt.

The daycare center didn't get 275% better. The teachers aren't earning 275% more — most childcare workers still make between $13 and $17 an hour. The building didn't get fancier. The finger paints didn't get more expensive.

What changed is the same thing that always changes: the dollar got weaker.

Since 1990, the M2 money supply — the total number of dollars in circulation — has grown from about $3.2 trillion to over $21 trillion. That's a 550% increase in the amount of dollars chasing the same goods and services. Every new dollar created makes every existing dollar worth a little less.

Daycare didn't get expensive. Your money got cheap.

And here's the cruel twist: the system now requires two incomes to survive. Both parents work because they have to — not because they want to. But the second income doesn't build wealth. It goes straight to daycare. The average American family now spends 24% of household income on childcare. One in four dollars earned walks right back out the door so you can earn the other three.

Your grandparents raised kids on one income. Not because they were special. Because their dollars were.

The math

Since 1971, the dollar has lost roughly 87% of its purchasing power. A dollar from 1971 buys what 13 cents buys today.

But here's what makes the daycare number so brutal: childcare costs haven't just kept pace with inflation — they've outrun it. The Consumer Price Index has roughly tripled since 1990. Daycare has nearly quadrupled. It's inflating faster than inflation itself.

Why? Because childcare is labor-intensive and can't be automated or offshored. You can't replace a caregiver with a robot or ship your toddler to a factory in Shenzhen. So when the cost of everything rises, childcare rises faster — and the families who need it most absorb the hit.

The result is a generation of parents who are earning more nominal dollars than their parents ever did, but who are somehow poorer. The numbers on the paycheck look bigger. The life those numbers can buy keeps getting smaller.

The exit

Now measure the same daycare bill in Bitcoin.

In 2015, when Bitcoin was around $300, a year of daycare at $10,500 (the average at the time) would have cost you about 35 BTC.

Today, that $15,000 daycare bill at roughly $104,000 per Bitcoin costs about 0.14 BTC.

From 35 BTC to 0.14 BTC. That's a 99.6% drop in cost — measured in money that can't be printed.

In dollar terms, daycare got dramatically more expensive. In Bitcoin terms, it got dramatically cheaper. The daycare didn't change. The money you're measuring it in did.

This is what a fixed supply does. When no one can create more units, the existing units gain purchasing power over time instead of losing it. Twenty-one million. That's the cap. No central bank can change it, no Congress can vote to raise it, no emergency can override it.

Your dollars are designed to lose value. Bitcoin is designed to hold it.

This week's numbers

• Daycare cost (1990): ~$4,000/year

• Daycare cost (2024): ~$15,000/year (national avg); $18,000+ for infants

• Increase since 1990: 275%

• Wage increase since 1990: ~60%

• Dollar purchasing power lost since 1971: ~87%

• Daycare in Bitcoin (2015): ~35 BTC

• Daycare in Bitcoin (today): ~0.14 BTC

• Bitcoin supply remaining to be mined: ~1.2 million of 21 million

Your parents could afford daycare on one income. You can barely afford it on two. The daycare didn't change. The money did.

Do the math.

Exit Velocity is a weekly newsletter about what your money is really doing — and what you can do about it. If this hit home, share it with someone who's doing the daycare-income math right now and not liking the answer.

Follow @ExitVelocityBTC on YouTube, Instagram, X, Nostr, and Podcasts.

Think in Bitcoin

.

Free Bitcoin tax calculator (FIFO / LIFO / HIFO, no signup): https://huggingface.co/spaces/Exitvelocitybtc/bitcoin-tax-calculator

Welcome to The Receipt — a weekly newsletter where we take one real price tag from everyday life and trace it back to the money.

This week's receipt: a house.

In 1970, the median home price in America was about $23,000. The median household income was about $9,870. That means a house cost roughly 2.4 years of one person's gross income.

Today the median home is around $420,000. Median household income — and keep in mind, this is now usually two earners, not one — is about $80,000. That's 5.25 years of combined income. For a couple. Working full-time. Together.

The house didn't get 2.8 times better. It didn't grow extra rooms. The lot didn't double. Your hours just buy less house than they used to.

This is the part nobody puts on the receipt.

When the Federal Reserve expands the money supply, new dollars enter the economy through banks and financial institutions first. The people closest to that new money — institutional investors, hedge funds, corporations — deploy it before prices adjust. By the time those dollars filter down to your paycheck, the price of everything has already moved.

Housing is the clearest example. Since 1971, when the dollar was detached from gold, the M2 money supply has expanded over 4,000%. Home prices have tracked almost perfectly with that expansion. Wages have not.

This isn't a conspiracy theory. It's a documented economic principle from 1730 called the Cantillon Effect. Richard Cantillon observed that whoever receives new money first benefits at the expense of whoever receives it last.

Three hundred years later, you're still last in line.

So when someone tells you houses are expensive because of "supply and demand," that's only part of the story. The other part is that the unit of measurement — the dollar — keeps shrinking. You're not just competing with other buyers. You're competing with 55 years of monetary expansion.

The math

Here's a number worth remembering: since 1971, the dollar has lost about 87% of its purchasing power. A dollar from 1971 buys what 13 cents buys today.

If your grandparents put a dollar in a savings account in 1971, and you went to spend it today, you'd have lost 87 cents of real value. You didn't spend it. You didn't gamble it. You "saved" it — and the system took 87% anyway.

This is why your parents could buy a house on one income. It's not because they were smarter or worked harder. It's because their dollars were worth something.

The exit

Now flip the lens.

In early 2015, Bitcoin traded around $250. The median home cost about $210,000. That means a house cost roughly 840 Bitcoin.

Today the median home is $420,000 and Bitcoin is around $80,000. That same house now costs about 5.25 Bitcoin.

Read that again. In dollars, the house doubled. In Bitcoin, it dropped 99.4%.

That's not because houses got cheaper. It's because Bitcoin can't be printed. There will only ever be 21 million. No committee votes to create more. No emergency justifies expanding the supply. The rules are the same for everyone, and they don't change — not in a crisis, not in an election year, not ever.

When you save in dollars, you're storing your time in something that loses value by design. Every year your savings buy less house, less food, less life. You're not falling behind because you're doing something wrong. You're falling behind because the unit you're saving in is being diluted underneath you.

When you save in Bitcoin, you're storing your time in something that gets scarcer — not weaker — as time passes. The house isn't getting cheaper in Bitcoin because of luck. It's getting cheaper because a fixed supply, measured against a growing economy, does what money is supposed to do: it rewards the person who saved.

That doesn't mean housing gets cheaper tomorrow. But it means the hours you've already worked stop losing value. And that changes everything.

That's the receipt.

This week's numbers

Median home price (1970): $23,000 — 2.4 years of income
Median home price (2026): $420,000 — 5.25 years of dual income
Dollar purchasing power lost since 1971: 87%
Home price in Bitcoin (2015): ~840 BTC
Home price in Bitcoin (today): ~5.25 BTC
Bitcoin supply remaining to be mined: ~1.2 million of 21 million

Your house isn't getting more expensive. Your money is getting weaker. And the 21 million cap isn't changing.

Do the math.

Exit Velocity is a weekly newsletter about what your money is really doing — and what you can do about it. If this hit home, share it with someone who's noticed their paycheck doesn't go as far as it used to.

Follow @ExitVelocityBTC on YouTube, Instagram, X, Nostr, and Podcasts.

Think in Bitcoin.

Free Bitcoin tax calculator (FIFO / LIFO / HIFO, no signup): https://huggingface.co/spaces/Exitvelocitybtc/bitcoin-tax-calculator