How Much Down Payment Do I Need to Buy a Flat in 2026?

Buying a flat or a house is the biggest financial decision most households ever make. The first question is often how much loan you can get, but in practice it’s just as important how much of your own money you need to have ready before you even sign the contract. On a €250,000 property, the gap between the price and bank financing can be €50,000, and appraisal, notary and land registry costs, a possible agency fee, moving, furnishing and renovation quickly add to that.

That’s why the down payment shouldn’t be treated as the only upfront cost. A buyer needs to put together the whole financial structure: the purchase price, what value the bank will recognise as collateral, how large a loan your income allows, how many extra costs will arise, and what reserve needs to remain after buying. Below are concrete 2026 scenarios and how to check each step with FinPortal.si’s calculators.

Is a 20% down payment mandatory?

There’s no general rule that every buyer must provide exactly 20% of the purchase price, but this share is a very useful starting point. The Bank of Slovenia recommends that banks normally keep the loan-to-value ratio (LTV) - the ratio between the loan amount and the pledged property’s value - at no more than 80% for a primary residence. For other residential property, the recommended limit is 70%. That means it’s sensible to plan for at least 20% in own funds for your own home, while a bank may expect even more for an investment or secondary property.

An important detail is that the bank doesn’t necessarily calculate the share from the agreed price, but from the value it recognises based on the appraisal. If you buy a flat for €250,000 but the appraiser values it at €235,000, 80% of the appraised value is €188,000. You have to cover the €62,000 gap to the purchase price yourself, before adding other costs. That’s exactly why it’s risky to assume 20% of the price will always be enough.

How much of your own funds do you need at different prices?

The table below assumes the bank finances 80% of the price or the appraised value, and that the price matches the appraisal. The last column shows an approximate safer target that adds roughly 3% of the price for process costs and an initial reserve on top of the down payment. For a property that needs furnishing or renovation, the target should be higher.

These figures aren’t a bank offer, just an orientation. If the bank’s appraisal comes in below the price, if your income is less stable, or if the bank applies stricter criteria, you’ll need more of your own money. Conversely, the financed share can be higher if you offer additional strong collateral, though that also raises your risk. For concrete figures on Slovenia’s most expensive market, see how much savings you need to buy a flat in Ljubljana.

Down payment, deposit and own funds aren’t the same thing

In everyday conversation, “down payment” often means all the money a buyer contributes themselves. In the contract, though, a deposit can also appear, which has a specific legal meaning and is usually paid with the preliminary or the main contract. If the deposit is, say, 10% on a €250,000 price, the buyer has to provide €25,000 early on. This amount is normally credited against the purchase price, but on its own it doesn’t mean the bank’s financing is already confirmed.

Before paying a larger deposit, it’s therefore worth getting at least an indicative creditworthiness estimate from the creditworthiness calculator and checking the property’s paperwork. If the loan isn’t approved, the consequences depend on the contract terms and circumstances. Don’t rely solely on an online calculation, since the bank also checks the SISBON registry, employment type, your age at the end of the loan term, existing limits, dependants, and the quality of the collateral.

What extra costs come up when buying?

Besides your own contribution, plan for appraisal costs, preparing and certifying documents, the notarial agreement for a mortgage, registering ownership and the mortgage, insurance, the bank’s approval fee, and any legal or technical review. Amounts vary by bank, deal value, and paperwork complexity, so it’s fairer to use a range rather than one seemingly precise figure.

For basic financial planning on a €250,000 flat, a buyer can budget roughly €300 to €600 for the appraisal, a few hundred to over €1,000 for notary, land registry and related procedures, and bank costs from €0 up, depending on the offer. If an agency is involved and part of the fee falls on the buyer, the impact can be several thousand euros. For a resale property, 2% real estate transfer tax is due when the transaction isn’t subject to VAT - the taxpayer is normally the seller, but the contract can allocate the economic burden differently, so the buyer needs to check exactly what the agreement says.

In FinPortal.si’s real estate financing calculator, enter the price, your own funds, financing costs, and any planned furnishing or renovation. That gives you a more realistic investment figure than simply adding up the price and the interest.

A concrete example: a €250,000 flat

Suppose you’re buying a flat for €250,000 and the appraisal confirms the same value. At 80% LTV, the bank approves a €200,000 loan, so you need €50,000 of your own contribution. Add €500 for the appraisal, €1,200 for notary, land registry and administrative procedures, €500 for bank costs, and €5,000 for moving and basic furnishing. Your total own-money need comes to roughly €57,200. If you want to keep an additional €10,000 safety reserve after buying, the sensible target is €67,200.

If the appraisal came in at only €235,000, 80% financing would be €188,000. Your own share of the price would rise to €62,000, and the total need with the costs above would rise to roughly €69,200, or €79,200 including the reserve. A single difference in the appraisal would therefore raise your required cash by €12,000.

For a €200,000 loan with a 3.5% fixed rate, the indicative monthly instalment in the loan calculator would be roughly €1,160 over 20 years, roughly €1,001 over 25 years, and roughly €898 over 30 years. A longer term lowers the instalment but raises total interest: roughly €78,000 over 20 years, €100,000 over 25 years, and €123,000 over 30 years, excluding extra costs. So when comparing offers, check not just the instalment but the total repayment amount too.

A large down payment still doesn’t guarantee you’ll get the loan

The bank checks the value of the collateral and your ability to repay separately. Under Bank of Slovenia rules, the DSTI ratio - the share of all monthly instalments in your income - normally must not exceed 50%. On top of that, a borrower must be left with at least €745 a month in 2026 after paying instalments, with the amount increasing for dependants. The bank may also apply stricter internal criteria - we cover this in more detail in how much loan you can get based on your salary.

A single person with a net income of €2,000 and no other liabilities theoretically hits the 50% limit at a €1,000 instalment, since €1,000 would remain after payment. At a 3.5% rate and a 25-year term, such an instalment means roughly a €200,000 loan. If the same person already pays €250 in leasing, the room for a new instalment shrinks. For a family, amounts for dependants also have to be factored in, so a simple calculation of net salary minus €745 isn’t enough.

Start with FinPortal.si’s creditworthiness calculator. Enter your regular income, existing liabilities, number of dependants, and desired term. Then compare the result with the loan calculator, where you can check the instalment at different interest rates. The final decision always rests with the bank.

What can you buy with 20,000, 40,000 or €60,000 in savings?

If you have €20,000 and want to keep €5,000 as a reserve, €15,000 is available for the down payment and costs. Assuming a 20% down payment and roughly 3% in extra costs, that’s enough for a property around €65,000. If you’re willing to spend the full €20,000, the approximate ceiling rises to €87,000, but you’re left with no safety net after buying.

With €40,000 in savings and an €8,000 reserve, €32,000 is available for the purchase, which under the same assumptions means a price of roughly €139,000. With €60,000 in savings and a €10,000 reserve, €50,000 is available, roughly supporting a purchase around €217,000. The calculation assumes the down payment and basic extra costs together represent roughly 23% of the price. This is a first orientation, not guaranteed purchasing power - if a €20,000 renovation is needed, subtract it from your available funds before setting your price range.

How long do you need to save for a down payment?

If your target is €50,000 and you already have €15,000, you’re short €35,000. Saving €500 a month, ignoring returns, would reach the target in 70 months, or five years and ten months. At €800 a month you’d need roughly 44 months, and at €1,000 a month, 35 months. For a €60,000 target starting from €20,000, at €800 a month you’d need 50 months.

For money you’ll need within a few years, safety and accessibility matter most. Highly volatile investments can lose part of their value right before the purchase. It makes sense to keep the money you’ll need for the deposit and costs, which must be quickly accessible, separate from longer-term savings. Recheck property prices, your savings, and your creditworthiness every six months, since the realistic target can shift.

How to use FinPortal.si’s calculators

Build your financial plan in four steps. First, use the creditworthiness calculator to estimate the highest possible loan given your income and liabilities. Then, in the loan calculator, test several amounts, terms, and interest rates. Don’t stop at one interest rate: for a €200,000 loan over 25 years, the instalment runs around €948 at 3%, around €1,001 at 3.5%, and around €1,056 at 4%. The difference between 3% and 4% is roughly €108 a month, or roughly €32,000 over 25 years.

In the third step, enter the price, down payment, loan costs, appraisal, notary and land registry costs, any commission, furnishing and renovation into the real estate financing calculator. In the fourth step, add a safety reserve on top of the result. That gives you three key numbers: roughly how much loan is within reach, what the monthly instalment will be, and how much money you need in your account before buying.

When comparing bank offers, look at the APR, the total amount paid, insurance costs, discount conditions, and early repayment options. A lower nominal interest rate isn’t always the cheapest offer if it requires a pricier package, insurance, or other recurring costs.

The most common mistakes when planning a down payment

The first mistake is calculating 20% of the price and assuming the financial structure is complete. The second is signing a preliminary contract and paying a large deposit before checking creditworthiness and the property’s acceptability to the bank. The third is spending all your savings and having no money after taking possession for defects, insurance, moving, or the first higher costs.

Comparing offers only by the monthly instalment is another common mistake. You can lower the instalment with a longer term, but the total payment is considerably higher. For a €200,000 loan at a 3.5% rate, extending the term from 20 to 30 years lowers the instalment by roughly €262 but raises total interest by roughly €45,000. Also don’t overlook the bank’s appraisal - if you agreed on a price above the appraised value, you normally cover the difference yourself.

Be especially careful with renovation. A cosmetic refresh can cost a few thousand euros, while replacing the kitchen, bathroom, wiring, windows, and flooring can quickly run to tens of thousands. Add at least 10 to 15% to a contractor’s budget for unforeseen work.

Checklist before making an offer

Before committing to a purchase, answer the following questions:

• Do you know your approximate creditworthiness?
• Have you checked the land registry, permits, and the property’s actual condition?
• Do you have money beyond the down payment for all accompanying costs?
• Can your financial plan withstand an interest rate 1 percentage point higher, or a temporary drop in income?
• Will a reserve for at least three to six months of essential living costs remain after buying?
• Does the contract clearly set out the deposit, deadlines, taxes, fees, and the consequences if financing isn’t approved?

If the answer to any of these is no, don’t raise your offer just because you’re afraid of losing the property. A few extra weeks of checking is normally cheaper than years of financial strain.

Conclusion: how much money is it sensible to have?

For a basic orientation when buying your own home, budget roughly 20% of the price for your own contribution plus at least 2 to 5% for process costs, moving, and basic furnishing. If renovation is needed, treat it as a separate project. For a €250,000 flat, €50,000 is therefore just a starting figure - the realistic need is often between 57,000 and €70,000, and more with a lower bank appraisal or a bigger renovation.

Start by checking with FinPortal.si’s creditworthiness calculator roughly how much loan your income allows. Then use the loan calculator to compare the instalment and total repayment at different terms and interest rates. Finally, build the complete budget with the real estate financing calculator. Only once the price, bank financing, monthly instalment, accompanying costs, and safety reserve all line up do you have a financial structure worth building a purchase on.

The calculations in this article are indicative. Actual terms, costs, and the approved amount depend on the bank, the appraisal, the contract, and your personal financial situation.