OSVČ and a Mortgage: How to Get One and What Banks Require

Owning your own home is one of the most common life goals. For employees, the path to a mortgage is relatively straightforward — a confirmation from your employer is enough, and the bank has a clear picture of your income. For self-employed individuals (OSVČ), the situation is more complex. Banks approach OSVČ applications with greater caution, require more documents, and assess income in a different way.

That doesn't mean a mortgage for OSVČ is out of reach. On the contrary — with good preparation and an understanding of what banks want to see, you can significantly improve your chances. In this article, we'll walk you through step by step how to prepare for a mortgage application, what documents you'll need, how banks calculate your income, and what limits you'll encounter.

Why Getting a Mortgage as an OSVČ Is More Challenging

While an employee has a regular monthly income confirmed by their employer, an OSVČ's income can fluctuate from month to month and year to year. From the bank's perspective, a self-employed person represents a higher risk — there's no way to say with certainty whether the business owner will still have sufficient income in one, two, or five years to keep up with mortgage repayments.

That's why banks applying to OSVČ:

• Require a longer business history — typically at least 1 to 2 years (some banks even require 3 years)
• Ask for more documents — tax returns, overviews, account statements
• Use a more conservative income calculation — they don't count your full turnover, but rather your adjusted tax base
• May require a higher down payment — meaning a lower loan-to-value ratio (LTV)

Basic Requirements for Getting a Mortgage in 2026

Before we dive into the specifics for OSVČ, let's summarize the general conditions that every mortgage applicant in the Czech Republic must meet in 2026.

Applicant's Age

The applicant must be at least 18 years old. The maximum age at the time of mortgage maturity is around 65 to 70 years at most banks, with some allowing repayment terms extending up to age 75.

Citizenship and Residency

The applicant must be a Czech citizen or a foreign national with permanent residency in the Czech Republic (or an EU citizen with temporary residency).

Purpose of the Loan

A mortgage can be obtained for purchasing a property, construction, renovation, settlement of co-ownership, or refinancing an existing loan. The property must be located in the Czech Republic.

Property as Collateral

A mortgage must be secured by a lien on a property. This can be either the property being financed or another property in personal ownership.

Czech National Bank Limits: LTV, DTI, and DSTI in 2026

The Czech National Bank (ČNB) sets recommended limits that banks follow when providing mortgages. The following rules apply for 2026:

LTV — Loan to Value

This means that if you are under 36 and buying a property worth 5,000,000 CZK as your primary residence, the bank can provide a mortgage of up to 4,500,000 CZK. The remaining 500,000 CZK must be covered from your own funds.

DTI — Debt to Income

The DTI indicator expresses the ratio of the applicant's total debt to their net annual income. In 2026, the DTI limit for primary residence mortgages remains deactivated — the ČNB has not yet introduced it as binding.

However, for investment mortgages, the ČNB recommends a DTI limit of 7 from 1 April 2026 — meaning total debt should not exceed seven times the net annual income.

DSTI — Debt Service to Income

The DSTI indicator expresses what share of the applicant's monthly income is consumed by repayments on all loans. This indicator also remains deactivated in 2026 for standard mortgages.

What Banks Require from OSVČ

Now we get to the heart of the matter — what documents and information the bank will ask of you as an OSVČ.

Tax Returns

The fundamental document is the personal income tax return. Most banks require tax returns for the last 1 to 2 tax periods, confirmed with a stamp from the tax authority or submitted via data mailbox.

Some banks (especially for larger amounts) may require returns for the last 3 years in order to assess the stability and trend of your income.

Certificates of No Outstanding Liabilities

The bank will want to verify that you have no outstanding tax or insurance arrears. You will need:

• A certificate of no outstanding liabilities from the tax authority
• A certificate of no outstanding liabilities from the ČSSZ (social insurance)
• A certificate of no outstanding liabilities from your health insurance provider

Income and Expenditure Overviews

Banks require overviews submitted to the ČSSZ and health insurance provider for the most recent tax period. These documents confirm your assessment base and the advance payments you have made.

Business Account Statements

Most banks require business account statements for the last 6 to 12 months. From these statements, the bank verifies:

• The regularity of income
• The actual business turnover
• Payment behavior (repayments on other obligations)

Additional Documents

Depending on the specific bank and your situation, the following may also be required:

• Extract from the trade register
• Contracts with key clients (for B2B businesses)
• VAT returns (if you are a VAT payer)
• Confirmation of entry into the lump-sum tax regime (if you pay lump-sum tax)

How Banks Calculate OSVČ Income

The income calculation for an OSVČ differs fundamentally from that of an employee. While a bank simply takes an employee's gross salary from their employer's confirmation, several approaches exist for OSVČ.

Method 1: Income from the Tax Base

The most common method. The bank takes the partial tax base from business activity (line 37 of the tax return), divides it by 12 months, and deducts advance payments for insurance and income tax from the result.

Method 2: Favorable Calculation with Flat-Rate Expenses

If you use flat-rate expenses (40%, 60%, or 80%), banks are aware that your actual costs are typically lower than the flat-rate deduction. Some banks therefore offer a more favorable calculation.

For example, instead of the tax base after deducting flat-rate expenses, they may recognize up to 50–70% of total income (line 101). The specific percentage depends on the bank and the type of activity.

Method 3: Turnover-Based Mortgage

Some banks offer a so-called turnover-based mortgage, where income is derived from the turnover on the business account. The bank may recognize, for example, 25% of annual turnover as income. This type is suitable for OSVČ with high turnover but a low tax base.

Method 4: Lump-Sum Tax

If you pay lump-sum tax, you don't file a tax return. In this case, banks assess income based on business account statements. The approach varies from bank to bank — some accept lump-sum tax, others do not.

How to Maximize Your Chances of Mortgage Approval

Preparing for a mortgage should ideally begin 1 to 2 years before submitting your application. Here are the key steps that will significantly improve your chances.

1. Optimize Your Tax Return

This is the most important step. Many OSVČ try to minimize their tax base in order to pay as little tax as possible. But a low tax base means low income from the bank's perspective.

2. Maintain a Clean Payment History

Banks check debtor registries (SOLUS, BRKI/NRKI). Any record of late payments, enforcement proceedings, or unpaid obligations can result in rejection.

• Pay all your obligations on time
• Avoid holding too many consumer loans or credit cards
• Keep any overdraft usage to a minimum

3. Build Up a Financial Reserve

Your own funds are crucial. The more of your own money you put into the property purchase, the lower the LTV will be — and the more favorable terms you may receive.

4. Prepare Quality Documentation

Have all documents ready in advance, in order, and complete. An incomplete application slows down the approval process and can raise doubts at the bank.

5. Consider a Co-Applicant

If you have a partner who is employed, it may be advantageous to apply jointly. An employee's income is easier for the bank to verify and is considered more stable, which improves your overall creditworthiness.

6. Approach Multiple Banks

Every bank has different internal procedures for assessing OSVČ income. One bank may reject your application while another approves it. We recommend approaching at least 3 to 5 banks or using the services of an independent mortgage advisor.

Specific Situations for OSVČ

OSVČ with a Short Business History

If you have been self-employed for less than 2 years, most banks will not grant you a mortgage. However, exceptions exist:

• Some banks accept just one tax return
• If you were previously employed in the same field, some banks may combine your employment and self-employment income
• Consider postponing your mortgage application until you have at least 2 completed tax periods

OSVČ on the Lump-Sum Tax

Since the introduction of the lump-sum tax in 2021, thousands of self-employed individuals have faced the question of how to document income when applying for a mortgage — since under the lump-sum tax regime you don't file a tax return.

OSVČ with Fluctuating Income

If your income varies (seasonal business, project-based work), banks may:

• Average your income over 2–3 years
• Take the lower of your last two tax returns
• Require higher own funds to compensate for the increased risk

OSVČ with Concurrent Employment

If you run a side business while also being employed, you're in the best position. Banks can add your employment income and self-employment income together, which significantly boosts your creditworthiness.

Calculating Disposable Income for OSVČ

When assessing a mortgage application, banks carry out a stress test — they verify whether you would be able to keep up with repayments even at higher interest rates. They typically calculate with an interest rate 1–2 percentage points higher than the current rate.

Interest Rates for OSVČ

In 2026, mortgage interest rates vary depending on the fixed-rate period, LTV, and the specific bank. For OSVČ, the same rates generally apply as for employees — banks do not differentiate interest rates based on income type.

What can affect the rate, however:

• LTV level — the lower the LTV, the lower the rate
• Fixed-rate period — a shorter fixed period typically means a lower rate, but higher risk
• Cross-selling — if you take out additional products with the bank (current account, insurance), you may receive a discounted rate

Common Mistakes OSVČ Make When Applying for a Mortgage

Step by Step: How to Proceed with Your Application

Alternatives to a Mortgage for OSVČ

If for any reason you cannot obtain a standard mortgage, alternatives exist:

Building Society Loan

A building society loan does not involve such strict income assessment. The downside is a lower maximum amount and the need for prior savings.

Combining Mortgages

You can combine a mortgage with a building society loan to cover a larger share of the property price.

Co-Applicant or Guarantor

Bringing in a co-applicant (partner, parent) or guarantor can significantly boost your creditworthiness and chances of approval.

Refinancing a Mortgage as an OSVČ

If you already have a mortgage and your fixed-rate period is coming to an end, refinancing is an opportunity to secure a lower interest rate. As an OSVČ, you will again need to document your income during refinancing, so the same recommendations apply — have your tax returns ready and maintain a clean payment history.

Tax Benefits of a Mortgage

Both OSVČ and employees can claim a deduction for mortgage interest paid from their tax base. In 2026, interest of up to 150,000 CZK per year can be deducted (for loans taken out from 2021 onwards; for older loans the limit is 300,000 CZK).

Summary: Key Points for OSVČ Applying for a Mortgage

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