Euro-cost averaging: a DCA plan you will still be running in March
The point of averaging in is not to buy the bottom. It is to buy on a date you do not get to renegotiate.
Isaak V · 18 August 2026 · 4 min
Euro-cost averaging is just scheduled buying: the same amount, the same day, the same asset, for longer than your enthusiasm lasts. American guides call it dollar-cost averaging. If you are paid in euros, name it properly. The currency of the habit matters because your rent, your buffer, and your future spending are in euros too.
Averaging in does not protect you from a falling market. It stops you from making twelve emotional decisions a year. That is the whole product.
Choose an amount a bad month can still pay
Set the contribution from the month you were ill, not the month you got a bonus. If €200 a month only works when nothing breaks, it is not a plan. Drop it until it is slightly annoying and still automatic. Annoyance you can automate beats ambition you will cancel.
Split the number in writing. Example, not advice: €180 into a broad equity ETF, €20 into a crypto sleeve, and nothing into a third idea until those two have run for a year. The ratio is yours. The separation is the point. A coin should not be able to raid the fund contribution because the chart looked friendly on a Sunday.
Pin the date to a bill you already pay
The day after payday is better than “when I remember”. Put it next to rent or a transport subscription so the investment feels like a bill the future version of you sends. Skipping is allowed when the cash buffer is hurt. Skipping because of a headline is the habit you are trying to fire.
Rebalance by contribution, not by drama. If crypto rallies and becomes a larger share than you wrote down, send the next few months entirely to the fund until the mix is dull again. You do not need to sell to be disciplined. Selling has tax consequences in many European countries. Read the plain-language tax sketch before you “tidy up” a winner.
Keep the crypto rail thinner than the story in your head
A DCA into Bitcoin or another major coin is still a DCA into something that can halve. That can be a rational sleeve if the euro amount is capped and the holding period is measured in years. It is not rational as a substitute for the equity fund, and it is not an emergency fund.
If you do not yet have an eligible crypto account, open Robinhood with this EU referral link. If you use the link to sign up and deposit at least €50, you'll receive €50 worth of crypto as a reward. Use that first deposit as month one of the rail, then continue only with money the plan already named. The reward is not a reason to raise the monthly amount.
Keep a record a tired person can read
One note is enough: date, euros in, what you bought, fee if you can see it, and the rule you are following. Future you will not remember why March was smaller. The note will. It is also the beginning of a tax file, which is a kinder gift than a folder of screenshots.
Review the amount once a year, on a calendar date, not on a red day. Raises can lift the contribution. A new child, a move, or a shaky job can cut it. Changing the plan on a schedule is discipline. Changing it because a podcast raised its voice is not.