Insurance: What You Need and What You Don't

Insurance is, at its core, a structured bet: you pay a periodic premium and the insurer covers losses if an adverse event occurs. The logic is elegant, but the industry has complicated it to the point where dozens of types of insurance exist today, many designed more to generate recurring revenue for the insurer than to protect your finances.

Distinguishing between insurance that protects you and insurance that drains you is one of the most financially rewarding decisions you can make. It requires no advanced knowledge — just a clear principle.

Why Insurance Matters for Your Finances

Insurance is not savings or investment. It is a risk management tool. Its function is to transfer to a third party — the insurance company — the cost of an event that you could not absorb without seriously damaging your financial situation.

Consider two scenarios. In the first, your phone falls and the screen breaks: repair cost, around 150 euros. In the second, your car seriously injures someone and there are damages to third parties: the cost can exceed 300,000 euros. The first you can absorb with your emergency fund. The second would wipe out your assets without a third party’s intervention.

This difference in magnitude is the foundation of the financial logic behind any insurance policy. It only makes sense to insure yourself against events whose cost you could not bear on your own. For everything else, the accumulated cost of premiums over the years almost always exceeds the expected cost of the insured event.

This principle, applied rigorously, greatly simplifies the decision of whether or not to take out any particular policy. It also reveals why so many heavily marketed insurance products fail the financial logic test.

The Insurance You Shouldn’t Skip

There is a set of insurance products that, for most people, are difficult to justify skipping:

Car insurance (third-party liability). In Spain, driving without at least third-party insurance is illegal. Beyond the legal requirement, the cost of a serious accident involving injuries can be enormous. The mandatory requirement has, in this case, perfect financial logic. Whether to extend to comprehensive coverage depends on the vehicle’s value: for cars more than five or six years old, the premium cost usually exceeds the expected value of claims.

Home insurance. It is not legally required if your home is owned outright without a mortgage, but it protects one of your most valuable assets. Basic coverage for the building structure and civil liability is sufficient for most people. Contents coverage — furniture, appliances — is more discretionary: insure what you could not replace without affecting your financial stability.

Life insurance if you have dependents. If your death would cause serious financial hardship for a partner, children, or others who depend on you economically, life insurance is rational. Premiums are low when taken out young and in good health. The insured capital should cover, at minimum, outstanding debts — including a mortgage — plus two to four years of family income. If you are single with no dependents and no significant debts, you probably do not need it.

Civil liability insurance. This covers damages you may cause to third parties through negligence. In many cases it is already included in home or car insurance. If you are self-employed, work in a high-risk activity, or practice a regulated profession, make sure you have specific and adequate coverage: a successful lawsuit can erase years of savings.

Health insurance (depending on your situation). Spain has universal public healthcare. A private health insurance policy is not essential, but it reduces waiting times and broadens access to specialists. Its usefulness varies considerably depending on the region, the quality of local public healthcare, and your typical health needs.

The Insurance You Can Skip

The insurance industry has perfected the art of selling coverage that exploits our aversion to risk. These are the most common products that, in most cases, fail the cost-benefit analysis:

Smartphone insurance or extended warranties on appliances. The cumulative cost of premiums over two or three years often equals or exceeds the cost of repairing or replacing the item. Self-insurance — setting aside monthly what you would pay in premiums in a small personal fund — is usually more financially sound.

Credit card payment protection insurance. This covers your card payments if you become unemployed. Its price is calculated as a percentage of your balance, exclusions are broad, and the requirements to actually claim are demanding. A well-sized emergency fund eliminates the need for it.

Life insurance tied to the bank’s mortgage. Banks typically offer — or condition a discount on — their own life insurance when you sign a mortgage. These products are rarely competitive in price. You have the right to take out an equivalent life insurance policy independently, usually at a lower cost, and still maintain any mortgage rate discount if you meet the institution’s other requirements. Compare before accepting the bank’s offer.

Travel cancellation insurance for short or low-cost trips. If the total cost of the trip is manageable in case of cancellation, the premium is not justified. For long trips of high economic value, the calculation changes.

Practical rule: if the cumulative cost of premiums over five years exceeds the expected cost of the insured event, the policy has no financial logic.

How to Calculate How Much Coverage You Need

More than the type of insurance, what matters is the amount of coverage. Taking out insufficient insurance can create false security: you pay but are not actually covered for the relevant event.

For life insurance, the simplest way to estimate the required capital is to add up outstanding debts — mortgage, loans — and multiply your annual income by the number of years your dependents would need economic support to stabilize their situation. The result should be the minimum insured capital.

For home insurance, make sure that the reconstruction value of the structure is up to date. Under-insurance is common: many policies are taken out with values from ten years ago, and in the event of a total loss the insurer pays proportionally less because the insured value does not reflect the current actual reconstruction cost.

For civil liability, the coverage limit should be generous. The costs of a lawsuit involving serious damages can easily exceed 300,000 euros. Contracting civil liability coverage of 300,000 or 600,000 euros costs marginally more than 150,000, but the difference in real protection is enormous.

The Reassurance Business and How to Avoid It

Insurance is sold by appealing to fear and responsibility. “What if something happens to your family?” is a question that activates emotional mechanisms, not rational ones. Insurers know this and design their sales arguments accordingly.

Three things worth knowing before signing any policy:

Deductibles. Many policies include an amount you pay before the insurer intervenes. A 300-euro deductible on home insurance means you cover losses below that amount entirely yourself. Knowing the deductible helps you calculate the real value of the coverage and decide whether raising it — to reduce premiums — makes sense given your level of savings.

Limits and exclusions. “Full coverage” does not mean unlimited coverage. Each policy sets limits per claim, per year, and by type of event. Exclusions — what the policy does not cover — are usually in the small print and are the source of most disputes between policyholders and insurers.

Automatic renewal and premium increases. Most policies renew automatically with a price increase that is not always communicated clearly. Mark the expiry date on your calendar well in advance so you have time to compare alternatives and cancel if necessary. The deadline to notify non-renewal is typically one to two months before the expiry date.

The Annual Review You Shouldn’t Skip

Insurance policies are not lifetime contracts. Your situation changes: a child is born, children grow up, you pay off a mortgage, you change cars, you age. A policy adjusted to your situation five years ago may be unnecessary, insufficient, or simply expensive compared to what the market offers today.

Once a year, spend an hour reviewing your insurance portfolio:

• Compare the price of each policy against the current market. Loyalty to the same provider is rarely rewarded with better prices. Online comparison tools allow you to do this in minutes.
• Verify that the insured capital in your life insurance still reflects your current debt level and dependents.
• Check whether you have duplicated coverage across different policies: civil liability in both home and car insurance, travel assistance included in a credit card and also taken out separately.
• Consider raising deductibles to lower premiums if your emergency fund has grown and you can absorb more risk without affecting your financial stability.
• Remove policies that no longer correspond to your actual situation: a life insurance policy taken out when you had a mortgage and two young children may be unnecessary twenty years later.

Well-chosen insurance is a powerful tool within a healthy personal financial system. Poorly chosen insurance is a silent drain on resources. The difference between the two is not determined by advertising or a salesperson’s insistence, but by a clear-headed analysis of the risks you actually need to transfer.