TL;DR: Dollar-cost averaging (DCA) in Bitcoin means buying a fixed amount of Bitcoin weekly or monthly, whatever the price. You automatically buy more at low prices and less at high prices. It is a way to spread your entry, not a way to avoid losses.
What can you expect?
- Time per week
- Little time: set it up once (about 1 hour) and then a short check once a month.
- Starting capital
- No minimum amount is required. Many providers accept small amounts. Only invest money you can afford to lose, for example a fixed amount per month from your surplus.
- Typical setbacks
- Long periods of falling prices and a value below what you put in. Falls of 50% or more have happened to Bitcoin in the past. Recovery is not guaranteed.
- Costs
- Cost per purchase or spread, withdrawal (network) fees when moving to your own wallet, possibly a service fee from the provider and a currency conversion if you do not buy in euros. Compare the total costs at several providers.
- Not suitable if…
- People who need the money within a few years, have no buffer or cannot bear losing their entire investment.
How it works
Dollar-cost averaging (DCA) means you put a fixed amount into the same asset at fixed moments, for example every month. When the price is high you buy less Bitcoin, when it is low you buy more. Your average purchase price therefore lands between the highest and the lowest price. DCA does not remove price risk. It only spreads out your entry. Bitcoin can fall very sharply and you can lose your entire investment. Bitcoin is not covered by a deposit guarantee.
Core principles
- 1. Buy a fixed amount at fixed moments (weekly or monthly)
- 2. Do not try to time the market
- 3. Choose a horizon of several years in advance and write it down
- 4. Expect large price swings and decide in advance how much loss you can bear
Step-by- step plan
- 1
Decide your amount and rhythm
Work out how much you can put into Bitcoin each month without touching your buffer or fixed costs. This is money you can lose entirely. Start with an amount that feels comfortable, for example €50 or €100 per month. Choose weekly or monthly.
- 2
Choose a provider
Choose a provider that allows recurring purchases. Compare cost per purchase, spread, withdrawal fees and how your Bitcoin is held. Check whether the provider holds a licence or registration under MiCA and whether withdrawal to your own wallet is possible.
- 3
Set up the recurring purchase
Link your bank account, choose amount and frequency and switch on the recurring purchase. Pick a fixed day, for example shortly after your salary arrives. Automating means you do not have to make decisions in a nervous market.
- 4
Decide how you store it
With a provider, your Bitcoin can be hacked or lost in a bankruptcy. Your own hardware wallet removes that risk, but then you are responsible for your seed phrase. If you lose it, your Bitcoin cannot be recovered. There is no deposit guarantee.
- 5
Stick to your plan and review it at fixed moments
The hardest phase is carrying on when the price falls sharply. A fall of 50% or more has happened to Bitcoin in the past and could happen again. DCA does not prevent that loss. So decide in advance at which loss you stop investing and at which loss you review your plan. A price recovery is not guaranteed.
In detail
Why you spread your entry
Bitcoin swings strongly. Daily moves of 5% to 10% happen, and in a short time the price can lose half its value. Anyone trying to pick the right moment has to guess both the bottom and the top. Nobody manages that reliably.
With DCA you buy the same amount every week or month. When the price is high you get less Bitcoin. When it is low you get more. So you do not have to make a forecast. Your behaviour becomes a fixed pattern, which helps against panic selling and against buying out of euphoria.
DCA versus investing a lump sum
Investing a lump sum is not always worse. In an asset with a rising trend, a lump sum gets into the market earlier, and in hindsight earns more. DCA is mainly a way to reduce regret and timing risk, not a way to increase returns.
Bitcoin is so volatile that the difference between the two methods can be large, in either direction. Below, a worked example shows how the average purchase price works. The example is made up and says nothing about what the price will do.
Frequency and costs
Investing weekly, every two weeks or monthly makes little difference to your average price in practice. Costs matter more. Every purchase costs something: a transaction fee or spread, sometimes a fixed amount. With small amounts and many purchases, that can be a large share of what you invest.
So compare the costs of several providers: cost per purchase, spread, withdrawal fees and any service fees. Also check what happens if the provider goes bankrupt or is hacked.
Custody and what you can lose
A provider that holds your Bitcoin for you can be hacked or go bankrupt. Your own wallet (self-custody) removes that risk but adds another: if you lose your seed phrase, your Bitcoin is gone for good. There is no helpdesk and no deposit guarantee. Also read the tutorial on wallet security.
MiCA, the European crypto regulation, sets requirements for crypto service providers. It says nothing about the price of Bitcoin and does not protect you from price losses. For the tax treatment, see belastingdienst.nl.
- A horizon of several years
- Able to cope with large price falls
- Understanding of custody risk and seed phrases
- Provider with recurring purchases
- Optionally a hardware wallet for self-custody
- 01 Set a fixed amount you can afford to lose (for example €50 or €100 per month)
- 02 Choose a fixed interval, weekly or monthly
- 03 Automate the purchase if your provider allows it
- 04 Start with an amount you can keep investing even in a bad period
- 01 Decide in advance when you need the money and then sell in steps
- 02 Set in advance at which share of your wealth you rebalance (for example when Bitcoin grows too large)
- 03 Stop investing if you can no longer afford the amount
Worked example
Made-up worked example (not a forecast). You invest €100 in Bitcoin four months in a row. The monthly prices are invented: €40,000, €30,000, €25,000 and €35,000.
| Month | Amount | Price | Bought (BTC) |
|---|---|---|---|
| 1 | €100 | €40,000 | 0.002500 |
| 2 | €100 | €30,000 | 0.003333 |
| 3 | €100 | €25,000 | 0.004000 |
| 4 | €100 | €35,000 | 0.002857 |
Formula: average purchase price = total invested / total BTC.
- Total invested: 4 × €100 = €400
- Total bought: 0.012690 BTC
- Average purchase price: €400 / 0.012690 = about €31,520
- Value at a price of €35,000: 0.012690 × €35,000 = about €444 (about +€44, +11%), before costs
For comparison: had you invested €400 in one go in month 1 at €40,000, you would hold 0.01 BTC worth €350 (−12.5%). Had the price only risen, the lump sum would have done better. So DCA gives no guarantee of profit, and you pay costs on every purchase.
Hypothetical example, not advice.
Work it out yourself
Risks and risk management
- Price risk: Bitcoin has fallen by more than 70% in the past and could do so again
- You can lose your entire investment; DCA does not protect against that
- No deposit guarantee and no guarantee that the price recovers
- Custody risk: hacks, provider bankruptcy or a lost seed phrase
- MiCA regulates the supervision of crypto service providers, not the price of Bitcoin
- Costs (spread, transaction fees, withdrawal fees) weigh heavily on small amounts
Learn the basics
Key takeaways
- Nobody can reliably time Bitcoin. DCA sidesteps the question 'when do I get in?' by spreading your entry.
- Your average purchase price always lies between the lowest and the highest price of the period. DCA gives no guarantee of profit.
- In a price that only rises, investing a lump sum is better in hindsight. In a price that first falls, DCA is better in hindsight. You do not know in advance which will happen.
- Bitcoin can fall very sharply. Only invest money you can afford to lose and take costs and custody risk into account.
Frequently asked questions
How often should I buy, weekly or monthly? +
Both work. The difference for your average price is usually small. Mainly watch the cost per purchase: with many small purchases, fixed costs can weigh heavily. Choose a rhythm that fits your income and compare providers' costs.
What share of my wealth can I put in Bitcoin? +
There is no fixed answer. It depends on your situation, your buffer and your risk tolerance. A rule of thumb is to invest only money you can afford to lose, even if the value falls by 70% or more. This is not personal advice. If in doubt, ask an independent adviser.
When do I sell my Bitcoin? +
Decide in advance, based on when you need the money, not on the price at the time. You can also sell in steps or rebalance if Bitcoin becomes too large a share of your wealth. For tax on gains, see belastingdienst.nl.
Origin
General technique