This is the question every new crypto investor asks β and almost nobody answers honestly. The real answer depends on your specific financial situation. Here's a clear, no-nonsense framework that actually works.
There is no universal right amount to invest in crypto. Anyone who tells you to invest a specific percentage without knowing anything about your situation is either guessing or selling something.
What we can give you is a framework β a set of questions and rules that will help you arrive at a number that makes sense for your life specifically.
The most important rule: Never invest money you cannot afford to lose entirely. Crypto is highly volatile. Bitcoin has dropped 80%+ multiple times in its history. If losing your investment would cause you serious financial hardship, you are investing too much.
With that said β crypto has also been the best-performing asset class of the past decade. A small, sensible allocation has genuinely changed lives. The goal is to find the amount that gives you meaningful upside without putting your financial stability at risk.
Before you put any money into crypto, make sure these four financial foundations are in place. This is not optional.
You need 3β6 months of living expenses in a liquid savings account before investing in anything volatile. This is non-negotiable. If your car breaks down or you lose your job, you should never be in a position where you need to sell crypto at a loss to cover expenses.
If you have credit card debt at 15β25% annual interest, pay it off before investing in crypto. No investment reliably beats 20% guaranteed returns on debt repayment. The math is simple.
Health insurance, liability insurance β the basics. Crypto gains cannot replace a missing safety net when you actually need it.
You don't need to be a technical expert. But you should understand that crypto prices are volatile, that exchanges can be hacked, and that there is no government guarantee on your holdings. Read our Crypto for Beginners guide if you're not there yet.
If all four of those boxes are ticked β great. Now we can talk about how much.
The most widely used approach is the "sleep test" combined with a percentage cap. Here's how it works.
Start with your monthly take-home income. Subtract all fixed expenses (rent, bills, food, transport). What remains is your discretionary income β the money you could potentially invest.
Now ask: how much of that could you invest without feeling stressed about it? This is your monthly investable amount.
Of your total investment portfolio (not just monthly savings β your total invested assets), financial commentators generally suggest the following crypto allocations by risk profile:
| Risk Profile | Crypto Allocation | Who it's for |
|---|---|---|
| Conservative | 1β3% | Retirees, people near major expenses, low risk tolerance |
| Moderate | 3β10% | Most working adults with stable income and long time horizon |
| Aggressive | 10β20% | Young investors, high income, high risk tolerance, long horizon |
| Very aggressive | 20%+ | Only if you deeply understand crypto and accept the risk |
Example: If you have β¬50,000 in total savings and investments, a moderate 5% allocation means β¬2,500 in crypto. That's the starting point β not the monthly amount.
Before confirming your amount, ask yourself: if this money dropped to zero tomorrow, could I sleep at night? If the honest answer is no β reduce the amount until it is yes. This test is more useful than any formula.
Situation: β¬1,600 in fixed costs, β¬3,000 emergency fund (4 months), no debt, no major investments yet.
Monthly investable: ~β¬600
Crypto allocation: Starting with 5% of total portfolio = β¬150 (since total invested is ~β¬3,000)
Monthly DCA: β¬50ββ¬100 into Bitcoin or ETH via Kraken or Bitvavo
Sleep test: β Losing β¬150 wouldn't cause hardship
Situation: β¬3,200 in fixed costs, β¬15,000 emergency fund, β¬40,000 in pension/stocks, no high-interest debt.
Monthly investable: ~β¬1,300
Crypto allocation: Conservative 3% of total portfolio = β¬1,200
Monthly DCA: β¬100 into Bitcoin only
Sleep test: β Losing β¬1,200 is painful but manageable
Situation: β¬2,200 in fixed costs, β¬10,000 emergency fund, β¬20,000 in stocks, no debt, long time horizon (30+ years).
Monthly investable: ~β¬1,600
Crypto allocation: Aggressive 10% of total portfolio = β¬2,000
Monthly DCA: β¬200 β 70% Bitcoin, 30% Ethereum
Sleep test: β Would be disappointed but not in crisis
If you are brand new to crypto and unsure about any of this, here is the simplest possible starting point:
Buy β¬100 worth of Bitcoin. That's it.
Not because β¬100 will make you rich β it won't. But because actually going through the process of creating an account, completing KYC, making a deposit, and buying your first Bitcoin is the best education you can get. You will learn more in one hour of doing it than in ten hours of reading about it.
After that experience, you will have a much clearer sense of whether you want to invest more, how comfortable you feel with the volatility, and whether this is the right path for you.
Pro tip: Use Dollar-Cost Averaging (DCA) β invest a fixed amount at regular intervals (weekly or monthly) rather than one lump sum. This removes the stress of trying to time the market and smooths out your average entry price over time.
For European investors, we recommend starting with Kraken (available globally, trusted since 2011) or Bitvavo (lowest fees in Europe, excellent for EUR purchases). Both accept SEPA bank transfers with very low fees.
Crypto markets can be down 50β70% at any point. If you need the money for a house deposit, a wedding, or anything else in the near future β keep it in cash. Crypto is a long-term investment.
Bitcoin shoots up 20% in a week and suddenly everyone wants to invest their entire savings. This is precisely the wrong time to invest a large amount. Start small, build your knowledge, then scale.
The logic is: "Bitcoin won't 10x, but this small coin could." The reality is that 95% of altcoins are worth less after 3 years than when you bought them. For beginners, Bitcoin and Ethereum are the only sensible choices. Our guide on investing in new cryptocurrencies explains the risks in detail.
Many new investors know when to buy but have no plan for when to sell. Think about this upfront: at what price or portfolio size would you take some profits? Having a rule prevents emotional decisions.
In most countries, crypto gains are taxable. Keeping track of your buys and sells from day one is much easier than reconstructing years of history later. Tools like Koinly automate this for you. Use code CRYPTOTAX10 for 10% off.
Absolutely. Most exchanges have no meaningful minimum β you can buy β¬10 worth of Bitcoin if you want to. β¬100 is a perfectly sensible starting amount to learn the process, experience the volatility firsthand, and decide whether you want to invest more.
Dollar-cost averaging (DCA) β investing a fixed amount at regular intervals β is generally better for beginners than investing a lump sum all at once. It removes the pressure of trying to find the "right" entry price and smooths your average cost over time. See our full DCA guide.
Most financial commentators suggest 1β10% of your total investment portfolio in crypto, depending on your risk tolerance and time horizon. For beginners, starting at 1β3% and increasing as you gain experience and confidence is a sensible approach.
This will probably happen at some point. Crypto is volatile β prices can drop 20β30% in days and 70β80% in bear markets. This is why investing only what you can afford to lose is critical. If your amount is right, a price crash is uncomfortable but not catastrophic β and historically, Bitcoin has always recovered to new highs given enough time.
No β crypto should complement your investments, not replace them. Your pension and diversified stock portfolio provide stability. Crypto provides potential for outsized growth with higher risk. The sensible approach is to build your pension and stock portfolio first, then add a small crypto allocation on top.
β οΈ Risk Disclaimer: Cryptocurrency investments are highly volatile and carry significant risk of loss. The value of your investment can go up or down, and you may lose all of the money you invest. This article is for informational purposes only and does not constitute financial advice. Always do your own research and consider consulting a qualified financial advisor before making investment decisions. Past performance is not indicative of future results.