What is the cost-average effect with regard to Bitcoin?

21bitcoin
21bitcoin
Jul 23, 2025
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If you want to invest in the volatile crypto market, you might ask yourself: How can I better cushion price fluctuations and reduce risk? A proven method for this is the so-called Cost average effect, also as Average cost effect known. Especially in conjunction with a Bitcoin savings plan Is this strategy popular because it allows you to build up crypto assets over the long term — even if the markets fluctuate strongly.

In the following, you will find out:

  • What exactly does the cost-average effect mean
  • How do you apply it specifically to Bitcoin
  • Why monthly payments make sense
  • What are the benefits and risks of a Bitcoin savings plan
  • Practical examples and tips to get you started

1. What is the cost-average effect?

With the cost-average effect, you regularly invest the same amount over a longer period of time — for example 100 euros every month. Since the Bitcoin price fluctuates, you get more shares for your money at low prices and correspondingly less at high prices. Over time, this creates an average price for your investments, which smoothes out fluctuations.

This method relieves you of having to find the “right time” to get started. Because instead of investing everything at once and taking the risk of poor timing, you spread your start over many smaller points in time. In the long term, this can reduce your investment costs and at the same time lead to more discipline when building up wealth.

2. Why is the cost-average effect particularly suitable for Bitcoin?

Bitcoin is known for its sometimes extreme price movements. Daily and weekly changes of plus or minus ten percent are not uncommon. In such an environment, many investors are tempted to act emotionally — either out of fear of losses or out of greed for price gains.

A savings plan with the cost-average effect helps you avoid exactly these traps. You invest automatically and regularly, regardless of whether the price is rising or falling. This allows you to spread your risk across different price levels and stay focused on your long-term strategy.

3. How to set up a Bitcoin savings plan

To start a Bitcoin savings plan, you first need a suitable platform. Many well-known providers such as Coinbase, Binance or Bitpanda offer this feature. There, you open an account, verify your identity (KYC) and set your monthly savings amount — for example 50, 100 or 200 euros. You then deposit a payment method, such as your bank account or a credit card.

You can usually also choose a specific day of the month on which the purchase should be carried out automatically. The platform then buys Bitcoin at the current market price on the desired day, and you receive fractions of Bitcoin according to your euro amount. You can either leave them on the platform or transfer them to your own wallet — depending on how much control you want to have over your coins.

4. Calculation example: Cost average effect in practice

Let's say you invest 100 euros each time over 6 months:

Month Rate (EUR/BTC) Invested BTC Bought Total BTC
Jan 25 000 €100 0.004000 0.004000
Feb 30 000 €100 0.003333 0.007333
Mar 20 000 €100 0.005000 0.012333
Apr 22 500 €100 0.004444 0.016778
May 18 000 €100 0.005556 0.022334
Jun 24 000 €100 0.004167 0.026500

Results:

  • Invested: 600 euros
  • Purchased: 0.0265 BTC
  • Average purchase price: approx. 22 641 EUR/BTC

Compared to a one-time purchase of 25,000 or 30,000 euros/BTC, you bought significantly cheaper here.

5. Benefits of the average cost effect

  • Lower risk in case of price fluctuations: You buy regularly, regardless of the price.
  • Disciplined wealth creation: Emotional mistakes are avoided.
  • You can start with small amounts: You can get started from just 10 euros a month.
  • Time savings: No need to constantly monitor the market.
  • Long-term opportunities: Anyone who invests in the long term benefits from Bitcoin growth.

6. Risks and limits

  • No risk protection: The effect only balances out, but does not eliminate market risk.
  • Charges: Pay attention to low transaction costs — they influence your return on investment.
  • Taxes: Sales within one year may be taxable.
  • psychology: Price losses can be discouraging — stay disciplined.

7. How to optimally adjust your savings plan

Choose a monthly amount that fits your budget — usually 50 to 200 euros. Automate the purchase at a fixed date of the month, around the beginning of the month. If you want, you can also incorporate a stop-loss strategy where you pause the plan or make additional purchases at certain prices.

8. Tax aspects in Germany

In Germany, if you hold your Bitcoin for longer than twelve months, sales profits are tax-free. Sales within one year are subject to income tax — there is an allowance of 600 euros per year. You can offset losses against gains from other private sale transactions. Therefore, keep an accurate journal of your purchases and sales. Many platforms offer you helpful tax reports.

9. Comparison: savings plan vs. one-time investment

Aspect Savings Plan (Cost-Average) Lump Sum Investment
Timing Risk low high
Emotional Influence low strong
Effort low (automatic) high (manual)
Start with small amounts yes only to some extent
Advantage during crashes regular cheap buying only through manual buying

If you don't want to constantly analyze prices and wait for the “right moment,” the savings plan is usually the more convenient and secure method.

10. Tips for maximum return

  • Plan for the long term: An investment horizon of 3-5 years is ideal.
  • Compare fees: Low costs make a big difference.
  • Take advantage of tax benefits: Wait at least 12 months before selling

11. Advanced strategies for advanced users

If your life situation changes — due to a higher income, for example — you can adjust your savings amount accordingly. Occasional one-time investments in the event of sharp price declines can also be useful. It is also worthwhile to think about rebalancing regularly in order to avoid cluster risks in the portfolio. Set yourself partial goals, for example when you reach a certain amount of Bitcoin or a price target.

12. Psychological benefits

A savings plan relieves you of the burden of daily decisions. You don't have to analyze every price jump or be afraid of missing out on something. Instead, you develop trust in your strategy and stay focused on your financial goals. Especially in difficult market phases, this plan helps you to remain calm.

13. Long-term expectations and historical development

Historically speaking, investors who have consistently invested according to the cost-average principle have achieved very good results. Despite crashes and setbacks, Bitcoin was able to gain strongly in the long term — a well-maintained savings plan left many classic asset classes behind.

14. Documentation and taxes

Use the platforms' tax reports to be able to understand at any time when and at what rate you bought. These documents help you to fulfill your tax obligations and secure tax-free profits. The cleaner your documentation, the easier the tax return will be later.

15. Conclusion: The cost-average effect as a solid strategy

The average cost effect gives you a simple and effective way to enter the volatile Bitcoin market — without having to guess the perfect time. With a well-thought-out savings plan, you smooth out extreme price movements, reduce emotional mistakes and build up a valuable crypto portfolio over time. Whether you're a beginner or an experienced investor, this strategy can be a stable basis for your long-term growth.

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