Selling a Property to Buy Another: Complete Guide 2026

June 30, 2026

Buying and selling property can be one of the most significant and, at the same time, most complex financial decisions a person can make. For many Spaniards, managing the sale of one apartment to buy another is a process that involves both opportunities and challenges. In this guide, we will familiarize the reader with the key elements to consider and the necessary steps, so they can navigate this process efficiently and securely.

¿Cuánto ganarías si inviertes desde hoy? Descúbrelo aquí.

What happens if I sell one apartment and buy another?

When you decide to sell one apartment and buy another, the first question that probably comes to mind is: "What does this mean financially?" The answer isn't simple, as it depends on various factors, such as the valuation of the property you're selling, the state of the real estate market, the location of both properties, and your personal circumstances, such as the need to finance the new purchase.

Financially, when you sell an apartment, you obtain capital that you can use as a down payment for another property. This is a crucial aspect to consider, as it can determine whether you opt for a cheaper or more expensive apartment. Additionally, if your current property has a mortgage, you'll need to analyze how this loan affects the sale and purchase.

On the other hand, selling one apartment to buy another has its tax advantages, such as the habitual residence reinvestment exemption; meaning you won't pay taxes on your income tax return, although to apply it, you must meet a series of requirements imposed by the Tax Agency.

This means you won't have to pay taxes if you sell your home to buy another, with the main requirement for applying the reinvestment exemption being that both the property you sell and the one you buy must be your habitual residence.

Steps to sell one home and buy another

Before deciding to sell your home to buy another, you should evaluate certain details to be completely sure you're making the right decision:

  1. Understand the real estate market: you need to know the real market value of your home. It's important to conduct a thorough analysis of the real estate market, understand how home sale prices have evolved, and the demand in the area. Consider doing the same research in the area where you plan to buy. At this point, it's also good to inquire about mortgage interest rates.
  2. Property valuation: to get an accurate estimate of your home's price, it's advisable to have an expert appraise the property. Factors such as location, size, and the property's condition must be evaluated. Knowing this data will make it easier to set a competitive price.
  3. Prepare the property: the more attractive your home is, the easier it will be to sell. Consider making minor repairs or improving its presentation. This can significantly influence how quickly it sells and the price you'll get.
  4. Selecting a real estate agent: At this point, you must decide between managing this entire process yourself or hiring a good real estate agent who can simplify the selling process for you.
  5. Calculate transaction costs: After knowing the value of your current home, you need to calculate how much you'll need to sell it and buy another. This buying and selling process involves a series of additional expenses such as: notary, registration, and administrative fees, homeowners' association fees, various taxes like Personal Income Tax (IRPF), Property Tax (IBI), and Municipal Capital Gains Tax (IIVTNU). We recommend including the real estate agent's commission, the costs of necessary certifications like the energy certificate and the certificate of occupancy, and potential final repairs. We suggest obtaining prior estimates for these expenses, as they can vary.
  6.  Search for your new home on real estate portals and apply for a mortgage, if you deem it necessary: Once the previous steps have been completed, and with everything ready to quickly sell your apartment and buy another, you can start looking for your new home among the listings on real estate portals to find the one that best suits your needs; it's also time to consider if you need a mortgage and start looking for the best, most suitable option.

Among the various considerations you must evaluate when selling one house to buy another is your bank. If you acquired your current home through a mortgage loan, you should confirm with the bank if there's a lock-in period during the initial years. Similarly, if the house was government-subsidized housing, you must understand the conditions before putting it up for sale.

Can I sell and buy a house at the same time?

Yes, you can sell and buy a house at the same time, but this process can be complicated. Synchronizing both transactions is crucial. If you sell first, you might find yourself without a place to live while you search for a new one. On the other hand, if you buy first, you run the risk of acquiring a new property without having sold the previous one, which could lead to managing two mortgages simultaneously.

To avoid these problems, it's advisable to have flexibility in closing both transactions. There are also solutions such as renting the property you're buying from its owner until you can finalize the sale of your old apartment, or including clauses in both transaction contracts to protect yourself in case one or the other doesn't go through.

What happens if I want to sell a mortgaged apartment to buy another?

Selling a mortgaged apartment to buy another is completely viable, but it requires careful management of the financial aspects. In this case, you should consider the following:

  • Mortgage Payoff: The current mortgage must be paid off with the money obtained from the sale. This means you'll need to make a careful calculation to ensure that the price you get for your apartment covers the outstanding balance.
  • Subrogation: In some cases, you can transfer the mortgage from your old apartment to the new one (bridge mortgage), which can be a favorable option. Consult your bank for the conditions.
  • Early Repayment: speak with your bank or financial institution as soon as possible. In many cases, the bank may offer you terms for the new mortgage based on your financial situation.
  • Market study: as the market changes, it's vital to constantly monitor price developments to ensure you make the right decisions.

What documents do I need to sell one apartment and buy another?

The documentation for both transactions is essential

To sell an apartment, you must provide the following documents:

  • Title deed: make sure you have your apartment's title deed readily available.
  • Energy performance certificate: this document is mandatory in Spain for any property being sold.
  • Property Tax receipt: the latest receipt proving you have paid the tax to the local authorities.
  • Certificate of occupancy: this document certifies that the apartment meets the necessary requirements for habitation.
  • Certificate of outstanding debts: if there is a mortgage, you must present a certificate indicating the outstanding balance.
¿Cuánto ganarías si inviertes desde hoy? Descúbrelo aquí.

To buy an apartment, you must provide the following documents:

  • DNI or NIE: National Identity Document or Foreigner's Identification Number to prove your identity.
  • Proof of income: documentation proving your income, either through your payslips or tax returns, essential for applying for a mortgage.
  • Mortgage pre-approval certificate: if you plan to finance the purchase with a mortgage, make sure you have this document from your bank.
  • Purchase agreements: once you find the new apartment, you will need to draft a contract to formalize the purchase.

What expenses do I need to cover if I want to sell one apartment and buy another?

Keep in mind that in this selling and buying process, you will incur various expenses, and it's better to anticipate them in advance rather than be caught by surprise.

When it comes to selling your property, consider the following expenses:

  • Agency fees: if you decide to hire a real estate agent, this can be around 5% of the sale price.
  • Municipal Capital Gains Tax: this tax is paid to the City Council and varies depending on the municipality and the length of time you have owned the property.
  • Mortgage Cancellation: if your apartment is mortgaged, there may be costs associated with canceling that mortgage.

After selling your property, you will incur the following expenses when buying your new home:

  • Property Transfer Tax (ITP): this tax is calculated on the purchase price and varies by autonomous community.
  • Notary fees: these include the deed of sale and the signing of the mortgage loan. Depending on the property's value, these costs can be significant. [SEG 8]
  •  : similar to notary fees, you will need to register the new property, and this fee will also depend on the property's price.Appraisal costs
  • : if you apply for a mortgage, the bank will require a property appraisal, which comes with an associated cost.Insurance
  • : it is advisable to have insurance to protect your new property once it is yours.What to consider before selling one apartment to buy another?

Before

embarking on selling and buying properties, it's crucial to consider several important aspects. First, research the real estate market conditions in your area, as knowing if it's a good time to sell can make a big difference. Additionally, conduct a thorough analysis of yourpersonal finance to ensure you're in a comfortable position to take on a new mortgage or any expenses associated with the new purchase.

It's also crucial to consider if your future plans align with the new acquisition, because the property you choose should adapt to your long-term needs. Don't rush into a decision; make visits to various properties until you find one that truly meets your expectations.

Finally, having professional advice, whether from a real estate agent or a financial advisor, can provide you with a clear view of your possibilities and help you make informed decisions.

Would you like to invest in real estate projects?

Do it easily and securely with Domoblock! Discover the best opportunities in the real estate market with a single click. Domoblock, an innovative platform designed to offer you confidence and peace of mind when investing. Understand your investor profile and manage your savings with real estate experts. 

Maximize your money's performance by accessing a high-potential investment portfolio. Domoblock gives you the opportunity to diversify your portfolio without complications. Start your journey towards financial freedom with a minimum investment of just €200, and begin to see returns in less than 8 months. 

Join Domoblock, make smart investments, and secure your future! 

¿Cuánto ganarías si inviertes desde hoy? Descúbrelo aquí.

Conclusion 

The decision to sell one property to buy another in Spain is a process that, while challenging, can be highly rewarding if handled correctly. By following the right steps, anticipating costs, and gathering the necessary documentation, you'll be on the right track to ensure a successful transaction. Remember, taking the time to research and reflect on your decisions is an investment in itself. With the right approach, you can not only find your dream home but also make a solid investment in your future.

Sergio Navarro

Expert in blockchain, investments, and personal finance

Share on your social media

Do you like what you're reading?

Subscribe to our Newsletter

Do you like what you're reading?

Subscribe to our newsletter!

En curso

Valencia | San Francesc

Convento San Francesc, 5

DOMO-VLC-32
Flipping house

Funded

100%

€676,972.00

Target

€676,972.00

Estimated annual return:
12.15%
Estimated duration:
8 months
Minimum investment
€200
Chat with other investors and ask your questions in our Telegram group

Related articles