A calculator sketches principal, rate, and term. It will not include ekspertiz, land-registry costs, or the insurance the bank will require on that title.
Not a loan offer. Outputs are illustrations, not approvals. Confirm real fees and insurance with the lender. This is not legal or title advice.
Use it as a sketchbook, not as a verdict
A mortgage calculator is good at one thing: turning a principal, a rate, and a term into an amortizing installment. That is useful when you are still deciding whether a listing is in the same universe as your income. It is harmful when you treat the output as “what I will pay” or “what the bank will lend.”
The konut kredisi overview is the real file. The calculator is a napkin.
What the tool usually ignores (on purpose)
Most public calculators omit:
- File fees (dosya masrafı)
- Ekspertiz fees
- Ipotek registration costs at the land registry
- DASK premiums
- Building / fire insurance the bank accepts
- Life insurance if the product requires it
- The LTV cap applied to appraisal rather than asking price
- Early repayment fees
- Account or payment fees sitting beside the installment
If a tool claims to “include all costs” but cannot see your title or your insurer’s quote, it is still guessing. Believe a written bank sheet over a widget.
How to use a calculator without lying to yourself
Step 1: Do not start from asking price.
Pick a principal you could actually borrow. Haircut the listing in your head for an appraisal miss. Illustrative only: if you might only finance 70 to 80 percent of a lower ekspertiz value, run the calculator on that smaller principal, not on the brochure number. Those percentages are a sketch, not today’s cap.
Step 2: Run three terms.
Same principal, three durations. Watch monthly debit fall and total interest rise as the term stretches. The “comfortable” installment is often the expensive loan. Write both numbers down.
Step 3: Add a fee sleeve by hand.
Put ekspertiz, file, registry, and a rough insurance line under the installment. You will be wrong on the exact premium. You will be less wrong than someone who ignored them.
Step 4: Add existing debts.
The bank will. If cards and consumer loans already eat a slice of documented income, the pretty installment may still fail the ratio. The calculator will not warn you.
Step 5: Stress FX if you earn abroad.
Recalculate what the TL debit costs in your salary currency at a worse rate than today’s. If that version breaks you, the sketch was never affordable.
What it is actually good for
Sanity bounds.
If even the optimistic sketch (low principal, short fee list) is heavier than you can document, stop touring penthouses.
Term trade-offs.
You can see, in minutes, that shaving years off the loan costs more per month. That conversation is worth having before a salesperson talks you into the longest term on the menu.
Comparing two written rates.
Once you have real sheets from desks that can board you, plugging those rates into the same calculator keeps the comparison honest, as long as you add each bank’s fees and insurance beside it. The widget is a common yardstick. It is not a ranking of banks. Valrun does not publish a winner list.
Spotting a campaign lie.
If a landing page installment only works when you hide insurance and fees, you will notice when you rebuild it yourself.
Failure modes we see on phones
- Using the seller’s price as principal
- Using a rate copied from a news site as if it were your offer
- Forgetting that variable products do not freeze the sketch
- Sharing a screenshot with a seller as if it were a bank approval
- Running one scenario and falling in love with it
A calculator cannot see a tapu annotation, a project that some books will not mortgage, or a KKB file with three recent inquiries. Those kill deals that looked perfect in a browser.
Bank calculators versus third-party toys
A lender’s own calculator is closer to that lender’s current campaign, and still not your file. Third-party sites mix products, stale rates, and lead capture. If you use them, treat every figure as example only until a branch repeats it on paper with your ID type on it.
Foreigners should be extra suspicious of tools built for Turkish salary customers. They will not model income haircuts or “we do not lend to this ID.”
A honest worksheet under the widget
After you hit calculate, write:
- Principal I assumed (and why it is not the asking price)
- Rate I assumed (labeled example until a sheet exists)
- Monthly amortizing installment
- Extra monthly for insurance (guess, then replace with quotes)
- Cash to close: down payment after LTV, plus fees
- Existing debt service
- What breaks if ekspertiz is 10 percent below the listing (illustrative shock, not a forecast)
If you cannot fill line 5, you are not ready to reserve the apartment.
Disclaimer: General information only. Not financial advice. Calculator results are not offers, appraisals, or approvals. Rates, fees, LTV rules, and insurance requirements change. Confirm with your bank and a licensed professional.
Before you apply
Use the calculator to bound the payment, then throw the screenshot away until a written sheet includes ekspertiz rules, fees, and compulsory insurance. If you are not a Turkish citizen, confirm the desk can board your income type before you trust any widget.