Stack sats

To ‘stack sats’ means buying small amounts of bitcoin regularly instead of waiting for the perfect moment. The amounts are counted in satoshisGlossarySatoshi (sats)The smallest unit of Bitcoin: 1 satoshi (‘sat’ for short) equals 0.00000001 BTC, so one bitcoin consists of 100 million sats. The unit is named after Bitcoin’s creator, Satoshi Nakamoto.On the learning path: Stage 1 · Step 4 – Sats & units →In the glossary →× (sats), the smallest unit: 1 BTC is 100,000,000 sats.^[1]

Why people think in sats

Sats make even small amounts tangible: $1 currently buys around 1,169 sats. Example (price $80,000, not a forecast): $25 gets you 31,250 sats, or around 30,900 sats after a 1% fee. You can convert your own amounts with the sats converter.

In practice

• Automatic: usually via a savings planGlossarySavings plan (Bitcoin savings plan)Automatically buying bitcoin at fixed intervals with a fixed amount, for example $50 a month. A savings plan takes the question of the right moment off your hands, but doesn’t promise a higher return.On the learning path: Stage 4 · Step 4 – Setting up a savings plan →In the glossary →× with a fixed amount and interval (cost averagingGlossaryCost averaging (DCA)If you regularly invest a fixed amount, you buy more when prices are low and less when they are high. With fluctuating prices, your average cost ends up below the average price – but that doesn’t mean a higher return than investing straight away.On the learning path: Stage 3 · Step 4 – Savings plan or lump sum? →In the glossary →×).
• Costs: with small amounts, fixed fees and the spreadGlossarySpread (bid-ask spread)The difference between the buy and sell price. With many apps, the spread is the real fee – it just doesn’t appear as a separate item on your statement.On the learning path: Stage 4 · Step 2 – Choosing a provider →In the glossary →× weigh more heavily in percentage terms.
• Custody: as long as the sats sit with the provider, you don’t control them yourself. That’s why many people move them to their own wallet in batches (self-custodyGlossarySelf-custodyYou hold the private keys to your bitcoin yourself – in your own wallet rather than with a provider. Nobody can freeze your bitcoin. But nobody can help you if you lose your seed phrase and keys.On the learning path: Stage 5 · Step 1 – Understanding custody →In the glossary →×) – every withdrawal costs a fee.
• Tax: in Germany, each purchase has its own acquisition date and therefore its own holding periodGlossaryHolding period (speculation period)In Germany, the gain from selling privately held bitcoin is tax-free if more than one year passes between purchase and sale (§ 23 EStG, as of September 2026). Each purchase has its own holding period.On the learning path: Stage 6 · Step 3 – Bitcoin & tax →In the glossary →×.^[2] The federal government wants to abolish the holding period; it isn’t law yet (as of September 2026) – see the reform tracker. Other countries have their own rules: Bitcoin tax around Europe.

Buying regularly smooths out your average price, but it doesn’t protect you from losses if the price falls for a long time. Only invest money you can do without for the long term. The DCA calculator shows how a savings plan would have performed.