You closed your mortgage at a Selic rate above 14%, and now specialists are talking about interest rate cuts through the end of 2026. The question won’t leave your head: is there a way to take advantage of the rate drop without selling the property and starting from scratch?
There is. It’s called credit portability for mortgages — and the Central Bank guarantees by resolution that any bank in the country is obligated to process your request.
1. What is mortgage credit portability?
Mortgage credit portability is the borrower’s right to transfer the balance of their mortgage from one bank to another offering better terms — without selling the property, without paying off the debt early, and without losing the mortgage lien.
How it started and why the Central Bank created this protection
Resolution CMN No. 4.292, December 20, 2013, determined that all institutions in Brazil’s National Financial System are obligated to accept and process portability requests within defined timeframes. The goal was to increase competition among banks and force down interest rates.
Portability is not refinancing: an important distinction
| Portability | Refinancing | |
| Balance transferred | Exact (no change) | Can include new credit |
| ITBI | Does not apply | Applies if new contract issued |
| Term | Maintains original | Can be renegotiated |
| Main cost | Appraisal + notary | ITBIITBIVer tudo → + appraisal + notary |
2. How it works in practice — step by step
Step 1: Simulate and compare rates — Use CETCETVer tudo → (Total Effective Cost) simulators to understand what each institution offers. Useful tools: Caixa simulator, MySide, your bank’s app.
Step 2: Request a formal proposal from the new bank — Go to the competing bank with your CPF, income proof, current mortgage statement, and property registration record. The new bank issues a Portability Proposal sent to the CIP.
Step 3: Your current bank has 5 days for a counteroffer — Upon receiving the request via CIP, your current bank has 5 business days to approve or make a counteroffer. In most cases, the original bank prefers to renegotiate rather than lose the contract.
Step 4: The new bank appraises the property — In 2026, many institutions accept AVM (Automated Valuation Model) — appraisal delivered within 48 hours.
Step 5: Notary registration — The debt transfer must be recorded in the property’s registration. The entire process today is 90% digital and takes an average of 30 to 60 days.
3. When portability pays off (and when it doesn’t)
| Situation | Worth porting? |
| Rate difference ≥ 0.5 p.p. and balance > R$ 300k | Yes — breakeven point typically reached |
| Time remaining > 10 years | Yes — bigger impact from compound interest |
| Original bank won’t negotiate | Yes, even with smaller difference |
| Difference < 0.3 p.p. | No — costs exceed savings |
| Outstanding balance < R$ 150k | Caution — fixed costs weigh more |
Simulation: real savings with a 1 p.p. difference
Outstanding balance of R$ 600,000, remaining term 240 months, SACSACVer tudo → amortization system:
| Scenario | Rate | Initial payment | Total interest over 20 years |
| Current rate | 11.19% p.a. | R$ 7,819/month | ~R$ 374,000 |
| After portability | 10.19% p.a. | R$ 7,319/month | ~R$ 338,000 |
| Gross savings | −1 p.p. | −R$ 500/month | ~R$ 36,000 |
Costs involved
- Property appraisal: R$ 1,500 to R$ 3,000
- Notary recording (subrrogation): R$ 800 to R$ 1,500
- Total estimate: R$ 2,300 to R$ 4,500
- ITBI: zero — does not apply to portability
4. Renegotiation with your current bank: the faster alternative
Formal portability is your last resort. Before launching the CIP process, it’s worth trying direct renegotiation with your current bank — especially because simply having a portability proposal from another bank in hand completely changes the conversation dynamic.
How to use the portability proposal as leverage:
- Obtain a formal portability proposal from the competing bank (free at this stage)
- Schedule a meeting with your current bank’s relationship or ombudsman department
- Present the proposal and ask them to match or beat the rate
- Also negotiate a reduction or waiver of MIP/DFI insurance
5. Outlook for those who bought in Florianópolis in 2025-2026
Projected Selic: the roadmap
| Reference | Projected Selic |
| December 2026 | 13.00% p.a. |
| December 2027 | 11.25% p.a. |
If the trajectory holds, the average bank counter rate for SFHSFHVer tudo → mortgages should converge to somewhere between 9.0% and 10.0% by the end of 2027. The most favorable portability window opens when bank counter rates reach 10.69% or less — which projections indicate as likely throughout 2027.
6. Frequently asked questions about mortgage credit portability
What is mortgage credit portability?
Mortgage credit portability is the mechanism that allows you to transfer your mortgage balance to another bank, keeping the original term, the amortization system, and the property lien — but with the new negotiated interest rate. Governed by Resolution CMN No. 4.292/2013.
How much does portability cost?
Typical costs are: property appraisal (R$ 1,500 to R$ 3,000) and notary recording of debt subrogation (R$ 800 to R$ 1,500). Total estimate: R$ 2,300 to R$ 4,500. ITBI does not apply.
Is the bank required to accept portability?
Yes. Under Resolution CMN 4.292/2013, the original bank is required to process the portability request when submitted via CIP. It has 5 business days to respond. The bank cannot block or ignore the request.
How long does the portability process take?
In 2026, the complete process takes an average of 30 to 60 days, from formal submission to the new bank until the first payment with the new rate.
