A mortgage step by step: from borrowing capacity to the notarial deed
Nine stages, two to four months and a list of costs you usually find out about too late. For a PLN 600,000 flat, on top of your down payment you need another PLN 18,172-29,826 just for the side costs of the loan. Below is the whole path, without skipping the awkward parts.
Reading time: 11 minutes · 14 July 2026 · Piotr Litwa, KredytPartner
The whole path and realistic timescales
A mortgage is not one visit to the bank but nine stages, each with its own clock. The table below shows realistic ranges, not promises from a leaflet. The Polish Mortgage Credit Act gives the bank 21 days to make a decision, but that clock only starts once a complete application has been submitted - and the bank decides what counts as complete.
| Stage | What you do | How long it takes |
|---|---|---|
| 1. Borrowing capacity and BIK | You calculate your borrowing capacity, download your BIK report, close your cards | 1-2 weeks (closing cards: 2-3 months earlier) |
| 2. The property and the preliminary agreement | Choosing, negotiating, the preliminary agreement, the deposit | weeks or months |
| 3. Documents | Certificates, PIT tax returns, bank statements, a copy of the KW (land and mortgage register) entry | 1-3 weeks |
| 4. Applications to banks | You apply to 3-4 banks close together | 1 week |
| 5. The credit decision | Analysis, valuation, possible follow-up questions | up to 21 days from a complete set realistically 2-6 weeks |
| 6. The loan agreement | You read, negotiate and sign | 1-2 weeks |
| 7. The notarial deed | Transfer of ownership at the notary's office | 1-2 weeks |
| 8. Release of funds | The bank transfers the amount or the first tranche | 3-14 days from the deed |
| 9. Mortgage entry in the KW | The court enters the mortgage, the bridging insurance ends | 1-6 months that is not a typo |
All in all: from submitting the applications to having the keys in your hand usually takes 2-4 months. Stage 9 happens after you have moved in and costs you money (bridging insurance), but requires nothing of you except patience.
Nine steps, in order
1. Borrowing capacity and BIK
You start with a number, not a flat. The bank will calculate your borrowing capacity at an interest rate raised by a buffer of at least 2.5 percentage points (a requirement of Recommendation S of the KNF, the Polish Financial Supervision Authority), so the actual loan amount will be lower than what your monthly payment suggests. We break the mechanism down in "How a bank really calculates your borrowing capacity", and you can work out your own in the borrowing capacity calculator.
At the same time: download your own BIK report (BIK is Poland's credit bureau; the report costs a few dozen zloty) and check it for errors - they do happen. Close your credit cards and overdraft limits, ideally 2-3 months before applying, because that is how long it takes for the data to be updated.
2. The property and the preliminary agreement
The bank will not issue a decision for "some flat for around 600 thousand". It needs a specific address, the land and mortgage register number and the price. That is why the order is: first the preliminary agreement, then the application.
A preliminary agreement in the form of a notarial deed is more expensive, but gives you the right to enforce the conclusion of the final agreement. In ordinary written form it is cheaper, but in a dispute all you are left with is the deposit. Put a deadline in it that matches how banks actually work - at least 8-10 weeks, not "a month", because a month is almost never enough.
3. Gathering documents
The most laborious and most underestimated stage. You will find a detailed list below. The rule: gather everything once, in several sets, because you are about to submit the same thing to several banks.
4. Applications - to several banks at once
This is the moment when most people lose money. The difference between offers on the same day can amount to tens of thousands of zloty of borrowing capacity and a fraction of a percentage point of margin, which over 25 years turns into tens of thousands in interest. Apply to 3-4 banks.
Every application is a credit enquiry visible in BIK. But the scoring reads four enquiries from a single time window (2-3 weeks) differently from four enquiries spread over half a year. The first looks like comparing offers. The second looks like a series of rejections and a desperate hunt for a loan - and genuinely damages your assessment at the next bank.
In practice: prepare a full set of documents, choose your banks, submit all the applications within two weeks. Not "I'll try one, and if it doesn't work out, I'll try the next one in a month".
5. The credit decision
By law the bank has 21 days from receiving a complete application. During that time it orders a property valuation (which you usually pay for) and analyses your documents. A very common scenario: the analyst asks for additional documents and the 21-day clock starts again. Reply within 24-48 hours.
If the valuation comes in below the purchase price, the bank will calculate the LTV from the valuation, not from the price. The result: you have to make up the difference out of your own pocket. This is one of the most common reasons why a transaction falls apart in the final stretch.
6. The loan agreement
The bank is obliged to give you a draft of the agreement before you sign (and an information form). Make use of it. Check at least:
- the margin (it is the only part of the interest rate you negotiate),
- the conditions for a margin discount for cross-selling (account, card, insurance) and what happens if you drop them,
- the cost and duration of the bridging insurance,
- the terms of early repayment (with a fixed rate, the bank may charge compensation during the first 3 years),
- the list of conditions you must meet before the funds are released.
7. The notarial deed
The transfer of ownership. You pay the notary's fee, PCC (the Polish tax on civil-law transactions - 2% of the price on the secondary market) and court fees. In the deed you also establish a mortgage in favour of the bank and file the application to the land and mortgage register - usually the notary does this for you.
8. Release of the loan
The bank transfers the money to the seller's account (not yours). On the secondary market there is usually one payment. When building a house or buying from a developer - tranches, paid out after successive stages, each once documents are delivered. During the tranche period you usually pay only interest on the part paid out, and the full payment starts after the last tranche.
9. The mortgage entry in the land and mortgage register
The last stage, over which you have no influence at all, and which costs you money every month. Until the mortgage entry becomes final, the bank has no security, so it charges bridging insurance - most often in the form of a higher margin. Depending on how busy the land registry court is, this takes from a month to half a year.
Once the entry becomes final, take a copy of the KW entry to the bank. The bank will not remove the bridging charge immediately of its own accord - and every month of delay is your money. If the bank charged bridging insurance beyond the date of the entry, you are entitled to a refund of the overpayment.
Documents: what to prepare
The list varies between banks, but the core is the same. Prepare everything in several sets - after all, you are applying to several banks.
| Category | Documents | Where from |
|---|---|---|
| Identity | ID card, sometimes a second document | - |
| Income (employment contract) |
Certificate of employment and income on the bank's form (usually valid for 30 days), PIT-37 tax return for the last year, bank statements for 3-12 months | Employer, tax office, bank |
| Income (B2B / sole trader) |
PIT tax returns for 1-2 years, the revenue and expense ledger (KPiR) or revenue records, certificates of no arrears with the tax office and ZUS (the Polish social insurance institution), the CEIDG business register entry, business bank statements | Accountant, tax office, ZUS |
| Property (secondary market) |
Preliminary agreement, a copy of the land and mortgage register entry, the seller's title deed, a certificate from the housing cooperative or owners' association confirming no arrears, an extract from the land register | Seller, court, housing cooperative |
| Property (primary market) |
Developer agreement, information prospectus, a copy of the KW entry for the land, building permit, tranche schedule | Developer |
| Down payment | Proof that you have the funds: bank statement, confirmation of the deposit payment, deed of gift | Bank, notary |
| Valuation | Valuation report - usually ordered by the bank, paid for by you | Property valuer |
Usually 30 days. If you spend six weeks gathering documents, a certificate from the first week will expire before you submit the application. Get the certificate last, when the rest of the set is already on the table. That one change of order saves two weeks.
The side costs of the loan that nobody counts
The down payment is not the only money you need to have in cash. Below is the full breakdown for a realistic case: a flat for PLN 600,000, a 20% down payment (PLN 120,000), a PLN 480,000 loan, 7.5%, 25 years. The monthly payment on such a loan is PLN 3,547.16.
| Cost | Market range | In this example |
|---|---|---|
| Loan arrangement fee | 0-2% of the loan amount | PLN 0-9,600 |
| Property valuation | PLN 400-1,000 | PLN 400-1,000 |
| Bridging insurance margin raised by about 1 percentage point until the mortgage is entered |
about PLN 318/month for 3-6 months |
PLN 954-1,908 |
| Property insurance assigned to the bank, compulsory for the whole term |
0.05-0.10% of the value a year | PLN 300-600/year |
| Life insurance usually optional, but lowers the margin |
0.02-0.04% of the balance a month | PLN 96-192/month |
| Notary's fee + 23% VAT maximum rate: PLN 1,010 + 0.4% of the amount above PLN 60,000 |
up to PLN 3,899.10 | PLN 3,899.10 + copies of the deed PLN 200-400 |
| 2% PCC secondary market only; not charged on the primary market |
2% of the price | PLN 12,000 |
| Entry of ownership in the KW | PLN 200 | PLN 200 |
| Entry of the mortgage in the KW + PCC on the mortgage | PLN 200 + PLN 19 | PLN 219 |
| TOTAL (secondary market) | 3-5% of the price | PLN 18,172-29,826 |
| TOTAL (primary market, no PCC) | 1-3% of the price | PLN 6,172-17,826 |
This is money the bank will not lend you (the arrangement fee can sometimes be added to the loan, but PCC and the notary cannot). You need to have it on top of your down payment. Someone who has saved exactly PLN 120,000 for the down payment and not a zloty more will not be able to buy this flat.
Until the mortgage is entered, the bank has no security, so it raises the margin - most often by about 1 percentage point. On a PLN 480,000 loan over 25 years, the payment rises from PLN 3,547.16 to PLN 3,865.09. The difference: PLN 317.93 a month.
Over 3 months that is PLN 953.79. Over 6 months - PLN 1,907.58. Over a year (it happens at overloaded courts) - PLN 3,815.16. You pay this solely because the land registry court has a queue.
What you can do: make sure the application to the land and mortgage register goes to the court straight after the deed, check the status of the entry online, and when the entry becomes final - take the copy to the bank immediately. The bank will not remove this margin of its own accord in the same week.
The most common reasons for refusal
A refusal is rarely a surprise - it can almost always be predicted in advance. Here is the list, from the most common:
| Reason for refusal | Can it be fixed? |
|---|---|
| Borrowing capacity too low once the 2.5-point buffer is added | Yes: a smaller loan, a bigger down payment, a co-borrower, closing limits |
| A cash loan taken out for the down payment | No. The bank sees it in BIK and treats it as having no down payment |
| Late payments of more than 30 days in your BIK history | With time. The entry stays for years |
| Payday loans in your history, even if repaid on time | With time. Some banks reject automatically |
| Too short a time in your current job, or a probation period | Yes: wait (usually 3-6 months, 12-24 for B2B) |
| Valuation below the purchase price | Partly: make up the difference or renegotiate the price |
| Legal defects in the property (claims, easements, an unresolved status in the KW) | Usually not. The defect lies with the property, not with you |
| Age - the loan usually has to end by age 70-75 | Partly: a shorter term or a younger co-borrower |
The most common and most expensive mistake. The bank sees every debt in BIK, and it also checks where the down payment came from. Cash from a loan is not a down payment - it is another debt.
The numbers: a cash loan of PLN 60,000 at 12% over 8 years means a payment of PLN 975.17. That payment lowers borrowing capacity (income PLN 9,000, a 2-person household) from PLN 495,213 to PLN 387,898, i.e. by PLN 107,315. You borrowed PLN 60,000 and lost PLN 107,315 of borrowing capacity. Net, you are PLN 47,315 worse off - and that is assuming the bank turns a blind eye to where the funds came from at all.
We set this out, together with legitimate sources of a down payment, in "Down payment: how much you really need and where to get it".
Checklist before you apply
- 6 months before: stop buying anything on instalments and submitting credit applications.
- 3 months before: close your credit cards and overdraft limits, get certificates of closure.
- 2 months before: download your own BIK report and check it for errors.
- 1 month before: calculate your borrowing capacity with the buffer and set a realistic budget for the flat.
- Before the preliminary agreement: make sure you have cash for the down payment plus 3-5% of the price for the side costs of the loan.
- Finally: get the income certificate (valid for 30 days) and submit all the applications within two weeks.
Do the maths yourself
Borrowing capacity calculator
The first step of the whole path. A model with the 2.5-point buffer, DSTI and the burden of card limits - exactly the way the bank calculates it. See what flat you can realistically afford before you sign a preliminary agreement.
Check your borrowing capacityLoan repayment calculator
The payment, the schedule and total interest for your loan amount. Plug in the margin with the bridging increase and see what waiting for the mortgage entry costs you.
Calculate the paymentRead on
- Down payment: how much you really need and where to get it - 10% or 20%, what low down payment insurance costs and why a cash loan for the down payment will never get through.
- How a bank really calculates your borrowing capacity - the 2.5-point buffer, DSTI and the credit card that takes PLN 66,000 off your borrowing capacity.
- APR or interest rate? - before you compare four credit decisions, learn to compare them honestly.
Assumptions behind the calculations: a PLN 600,000 flat, a 20% down payment (PLN 120,000), a
PLN 480,000 loan, an interest rate of 7.5%, a term of 25 years, equal instalments. The PLN 3,547.16 payment
and all interest amounts were calculated with our engine (js/finance.js),
the same one that powers the loan repayment calculator.
Bridging insurance is modelled as a 1-percentage-point increase in the margin until the mortgage
is entered. Borrowing capacity was calculated for net income of PLN 9,000, a
2-person household, living costs of PLN 2,500, DSTI of 50% and a 2.5-point buffer. The notary's
fee is based on the maximum rates in the regulation (PLN 1,010 + 0.4% of the amount
above PLN 60,000, plus VAT) - a notary may offer a lower one. The ranges of market
fees (valuation, insurance, arrangement fee) are indicative and vary between
banks. Official and court timescales depend on the location. This text is
educational and does not constitute credit advice.