Mortgage on a flat is larger than its sale price: who pays the difference?
Published 14 November 2026
If the property sale doesn't cover the mortgage debt, the remaining debt stays with the borrower—you and any co-borrower—not with the buyer. The bank will typically release its charge (the legal hold it has on the property under Czech law) only when it receives full payment or when you've agreed in writing to an alternative arrangement. The sooner you start an open conversation with your bank, the more options usually remain available.
Summary
- The shortfall between the property sale price and the bank debt remains the borrower's (and any co-borrower's) responsibility—not the buyer's.
- The bank holds a charge (Czech: zástavní právo) on the property, so you cannot transfer ownership without the bank's agreement to release it.
- Your best starting point is an open conversation with your bank and establishing the exact amount needed to clear the debt entirely.
- Your main options include: paying the shortfall from savings, arranging instalments for the remainder, negotiating the bank's consent to the sale, or in extreme cases, pursuing debt settlement (Czech: oddlužení).
- A quick purchase doesn't erase your debt, but can help if you need speed and if the offered price covers the full mortgage.
Who is responsible for the shortfall
The original borrower who took out the loan—and any co-borrower—always remains responsible for any remaining debt. Selling the property does not automatically end the loan agreement.
A mortgage is a debt created by a loan contract. The property serves only as security for the bank through a charge registered according to the Civil Code (Czech: občanský zákoník č. 89/2012 Sb., § 1309 onwards). If the bank doesn't receive the full amount owed from the sale, the borrower still owes the remainder. The buyer has no responsibility for your obligations, as they are only paying the agreed purchase price and acquiring the property.
If you took out the loan as a married couple or partners, you are typically both borrowers. The bank can then pursue either of you for the remaining debt. Check your loan agreement for the precise terms; you'll need it to sort out your situation.
Why this happens
The debt typically exceeds the sale price due to a fall in property values, lower sale prices under pressure, or the property's condition.
- The property market has weakened since you took out the mortgage and the property is now worth less,
- The debt includes other loans secured by the same property,
- Unpaid interest and any contractual penalties have accumulated,
- The property needs repairs, which the buyer factors into their offer,
- The sale is urgent—for example due to divorce, loss of income, or an impending forced sale (Czech: dražba).
First, establish the actual debt position, not just your estimate. Ask your bank to provide in writing the exact amount needed to clear the debt by a specific date.
How to approach your bank
Inform the bank before you stop paying; open communication is your best starting point. Banks are used to dealing with complex situations and usually prefer negotiation to enforcement.
- Request your exact balance and the terms for early repayment.
- Have the property valued and compare it with the debt to understand the shortfall.
- Explain your situation to the bank and ask whether it would agree to the sale and release its charge even if the proceeds don't cover the full debt.
- Ask for a written statement on how the bank will handle the remaining debt (repayment schedule, partial forgiveness, alternative arrangement).
- Don't sign anything without reading it carefully, and consider having a lawyer review any agreement.
The bank has no obligation to agree to a shortfall and will decide based on its own criteria. The charge is removed from the land register (Czech: katastr nemovitostí — Czech Land Registry) only when the debt is paid or the bank consents in writing; the buyer's ownership rights arise only after registration in the land register (Czech: katastrální zákon č. 256/2013 Sb.).
What are your realistic options
There are several options, depending on how much time and resources you have available.
| Option | When it makes sense | What to watch for |
|---|---|---|
| Pay the shortfall from savings or with family help | The shortfall is manageable | Document any family loans in writing |
| Sell with the bank's consent and an agreement on the remainder | The bank is willing to negotiate | The agreement must be in writing and clear |
| Hold off on selling and continue paying | Payments are manageable and the market might improve | Uncertain price movement, accruing interest |
| Quick sale outside forced sale process | Enforcement or forced sale (Czech: dražba) is imminent | Time is limited; the price must cover the debt |
| Debt settlement under the Insolvency Act (Czech: insolvenční zákon č. 182/2006 Sb.) | Long-term debt repayment is not feasible | Significant impact on assets and life; seek advice first |
If the property is shared with a former partner or co-owners, spell out how the debt and sale proceeds will be divided in a written agreement. See also property purchase with a mortgage for more context.
What happens if you don't address the problem
If payments stop, the bank can accelerate the loan and pursue enforcement or court proceedings (Czech: exekuce — enforcement).
The property may then be sold at forced sale (Czech: dražba) under the Civil Procedure Code (č. 99/1963 Sb.) or the Enforcement Code (č. 120/2001 Sb.). The opening bid is typically set at two-thirds of the assessed value (§ 336e Civil Procedure Code, applying similarly in enforcement). The resulting price may be well below market value, widening the shortfall; any debt not covered by the forced sale remains yours. Court and enforcement costs are added on top.
This is why it's wise to negotiate before a forced sale is ordered. Learn more in quick sale before forced sale. If the property already has another charge or debt registered, see property purchase with existing charges.
When a quick purchase makes sense
A quick purchase makes sense if you need to act fast and the offer covers the full mortgage debt; it won't resolve a shortfall on its own.
If the offer is lower than the debt, no buyer—including a property purchase company—will forgive the remainder. A quick purchase doesn't solve who pays the shortfall; it simply offers a faster path to sale. It typically works if the debt is lower than or roughly equal to the offer, if you're under time pressure, or if you can cover any shortfall from other sources.
Our process typically works like this: you receive a written, no-obligation offer within 24 hours. Contracts and a holding deposit usually follow within one to three days. Land register entry takes roughly three to four weeks on average (approximately 22 days; the office cannot decide sooner than 20 days after notifying the owner). The final payment is released from the lawyer's escrow within five days of registration and then paid to your bank. Payment is cashless; cash is limited to 270,000 CZK per day (Czech: zákon č. 254/2004 Sb. — Payment Transactions Act). The lawyer's escrow and legal services incur no fees, and no repairs or clearing work is required. More details in how the purchase works.
Capital gains tax may apply to the sale proceeds (Czech: zákon č. 586/1992 Sb. — Income Tax Act), especially regarding the holding period and use for personal residence. Check with the Czech Tax Office or your tax adviser for your specific circumstances.
Your next steps
Start by gathering the numbers and talking to your bank; only then choose your path forward.
- Gather your loan agreement, charge agreement, and your latest loan statement.
- Ask your bank for the exact amount needed to clear the debt.
- Download and review the land register entry (Czech: list vlastnictví — property ownership record) and note all charges and restrictions.
- Find an approximate property value, for example using our property valuation tool.
- If you need funds urgently, read about quick property sale options.
You can get a no-obligation offer or assessment of your situation through the form below the article. There's no commitment; the choice remains yours.