Financial foundations first: emergency fund, debt, insurance

Before we talk about buying, let’s look at your financial foundation together. Bitcoin can lose half its value within a few months. Without a reserve, an emergency may force you to sell at exactly that moment.

Germany’s consumer advice centres (Verbraucherzentrale) and its financial regulator BaFin agree: pay off debt and build a reserve first, then invest.^[5],[1] That applies to any investment, and to Bitcoin in particular. The sources here are German; the order applies wherever you live.

Why the order matters

Measured in US dollars, a Bitcoin purchase made since 2013 was at a loss one year later in around 31% of cases, in the worst case by around 83% (bought on 16 December 2017; daily closing prices, our own calculation).^[2] As long as you don’t need the money, you don’t have to sell. An emergency, however, can force you to sell at the low. BaFin warns against getting into that position even with shares.^[1] Given Bitcoin’s volatilityGlossaryVolatilityA measure of how strongly a price fluctuates, usually given as annualised standard deviation in per cent. Bitcoin fluctuates much more than a broad stock index or gold – up and down.On the learning path: Stage 3 · Step 3 – Returns & risk →In the glossary →×, that applies all the more.

1. Get an overview

   Write down income, expenses, assets and debts. This shows how much you can put aside each month.

2. Cover existential risks

   Above all personal liability insurance and protection for your income, for example through occupational disability insurance.

3. Pay off expensive debt

   Overdraft, instalment purchases, consumer loans: every repayment saves interest for certain.

4. Build an emergency fund

   Three to six months’ expenses in an instant-access savings account.

5. Provide for the long term

   Broadly diversified, for example through equity ETFs and interest-bearing investments.

6. Only then: Bitcoin with a plan

   A deliberately limited share, ideally with fixed rules and a savings plan.

Steps two to four often run in parallel. They should be done before any significant amounts go into Bitcoin.

Overview and budget

BaFin advises taking stock before any investment: savings, securities, debts, regular income and obligations.^[1] The German consumer finance guide Finanztip recommends recording income and expenses in a household budget over several months – unnecessary spending often shows up along the way.^[3]

An example with made-up, round figures – in dollars, like every calculation on this site; it works the same in any currency:

Item	per month
Net income	$2,400
Rent, utilities, insurance, contracts	−$1,000
Food, household, transport	−$650
Leisure, clothing, other	−$350
Monthly expenses	$2,000
Surplus	$400

Your monthly expenses determine the size of your emergency fund, your surplus how fast you build it.

The German personal finance site Finanzfluss recommends three separate accounts: a current account for everyday spending, a separate account for the emergency reserve and an investment account. Fill the last two automatically, ideally by standing order at the start of the month. The separation makes it easier to leave the reserve alone.^[4]

Cover existential risks

The Verbraucherzentrale gives priority to covering existential risks. Review your cover every two to three years and after major changes in your life.^[9]

Cover	Why	For whom
Health insurance	mandatory by law in Germany[10]	everyone (mandatory)
Personal liability	covers damage for which you are liable without limit; a good policy costs around €20 to €50 a year (as of August 2026)[11]	almost everyone
Occupational disability	protects your income if you can permanently no longer work in your occupation[12]	anyone who lives on their earned income
Motor third-party liability	mandatory by law[10]	vehicle keepers (mandatory)
Buildings insurance	protects the house against fire, leaking pipes, storm and hail[10]	homeowners
Term life insurance	pays out on death, for example the outstanding balance of a loan or for your family[10]	anyone with a mortgage or a family

According to Finanztip, around one in four people becomes unable to work in their occupation at least once during their working life.^[12] Finanzfluss, on the other hand, often considers specialist policies for small risks unnecessary.^[10] The consumer advice centres’ insurance check gives a first overview.^[9] The table reflects German rules and prices; what is compulsory and what cover costs differ by country.

Expensive debt first

‘Paying off debt takes priority over investing,’ writes the Verbraucherzentrale: loans usually cost more in interest than the same sum earns as an investment.^[5] BaFin singles out the overdraft in particular.^[1] In Germany, overdraft rates range from around 7 to 17% a year, depending on the bank (as of August 2026).^[6]

A worked example: a $3,000 overdraft in permanent use costs around $360 a year in interest at 12%. Pay it off and you save that $360 – for certain, every year. Bitcoin offers no return that certain.

Expensive debt mainly means:

• an overdraft and unpaid credit card balances
• instalment purchases and ‘pay later’ offers
• consumer and personal loans, for example for a car, furniture or electronics

With a mortgage, it depends on the interest rate: if your contract allows extra repayments, paying it off faster can, according to BaFin, be more profitable than investing. Finanztip, however, notes that with savings rates having risen, an extra repayment isn’t always the best option.^[1],[3]

The emergency fund

Your emergency fund covers the unexpected: a broken washing machine, a car repair, a back payment, a period without income. The recommendations on the amount are close together:

Source	Recommendation
BaFin	often recommended: three months’ income[1]
Finanztip	three to five months’ salary[3]
Finanzfluss	three to six months’ net salary or expenses[4]

Finanzfluss considers monthly expenses the more precise basis, because you only put aside what you would really need in an emergency. Calculating with income gives you a little more buffer. If others depend on your income or it is insecure, plan towards the upper end; a secure civil-service salary allows a smaller emergency fund.^[4] In the budget example, three to six months’ expenses would be $6,000 to $12,000.

Where your emergency fund belongs

In a savings or instant-access account. BaFin explicitly does not consider investment funds and shares suitable emergency reserves.^[1] Across the EU and EEA, the statutory deposit guaranteeGlossaryDeposit guarantee (deposit protection)Statutory protection for bank deposits: up to €100,000 per person and bank if the bank goes bust. It generally doesn’t cover bitcoin – and neither does investor compensation.On the learning path: Stage 5 · Step 1 – Understanding custody →In the glossary →× protects bank balances up to €100,000 per customer per bank – a legal limit, hence in euros.^[8]

Bitcoin is not an emergency fund. Crypto-assets are, as a rule, covered neither by deposit guarantee schemes nor by investor compensation.^[8] And their value can halve before you need the money: from its record high on 6 October 2025 (daily close around $124,700), the price fell by around 53% by 30 June 2026.^[2]

That instant-access savings often yield little after inflationGlossaryInflationA general rise in prices that makes money lose purchasing power. The ECB aims for 2% a year over the medium term for the euro area.On the learning path: Stage 2 · Step 1 – Money, inflation & trust →In the glossary →× is the price of this security. Finanzfluss sees the forgone return as a kind of insurance premium.^[4]

The long-term foundation

Once protection, debt reduction and your emergency fund are in place, it’s about building wealth. Finanztip recommends equity ETFs for returns and interest-bearing investments for security. Its rule of thumb for retirement: around 15% of net income a month into an equity ETF.^[3] BaFin advises spreading your wealth across different types of investment.^[1]

Bitcoin comes on top of that, if at all, as a speculative share. What is known about the size of that share is covered in Bitcoin as a small portfolio allocation, its role in retirement planning in Bitcoin for retirement?

Only then: Bitcoin with a plan

With these foundations, you can sit out price swings, don’t have to buy on credit and have time to understand Bitcoin. Three things help you start:

1. Clarify your goal and horizon: what is the money for, and when will you need it at the earliest? The goal compass helps.
2. Start small and regularly: 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 an amount you won’t miss even in bad months. Instructions: Setting up a Bitcoin savings plan.
3. Write down your rules: what will you do if you’re down 50%? When will you sell? More in Holding for the long term.

To try out buying, a wallet and a backup beforehand, a tiny amount you wouldn’t mind losing is enough. That’s a learning expense, not an investment – top it up only once your foundations are in place.

Your financial foundations