The final schedule is set, but it carries a silent tax trap for anyone who fails to act in time. A material fact released on September 17, 2026, by the Brazilian real estate fund (KISU11) details the definitive wind-down of its trading on the B3 and the transition process into the Suno Multiestratégia FII (SNME11). The major development requiring immediate attention from retail investors is the need to report the average acquisition cost of their units to avoid an excessive withholding income tax charge.
What Happened to KISU11?
Real estate fund KISU11 published its official liquidation and corporate reorganization schedule, establishing that its units will stop trading on the B3 after the market close on October 13, 2026. This decision is the direct result of a General Unitholders' Meeting (AGE) concluded on May 18, 2026, which recorded a quorum of 35.93% and approval from 30.54% of unitholders.
The transaction involves KISU11 subscribing to units in the 3rd issuance of the Suno Multiestratégia FII (SNME11, CNPJ 52.227.760/0001-30), paying for them with KISU11's entire asset portfolio. In practice, KISU11 (CNPJ 36.669.660/0001-07), which operated as a fund-of-funds (FoF) investing in 36 different FIIs, will cease to exist. In exchange, its unitholders will receive SNME11 units and any remaining cash proceeds.
What Is the Last Day to Buy or Sell KISU11 on the B3?
The final trading day for KISU11 units on the exchange will be October 13, 2026. Starting the next day, October 14, 2026, the units will be blocked from trading and transfers, with this date serving as the cutoff to determine which unitholders will participate in the amortization and conversion.
Until this deadline, the market is likely to see price volatility. The unit closed at R$ 5.99 on September 16, 2026—a sharp drop compared to levels seen before the liquidation was approved. When the meeting notice was published in April 2026, the price stood at R$ 7.11 (on 04/24/2026) before falling to R$ 6.52 (on 05/19/2026), an accumulated decline of roughly 8.3% across 17 trading sessions. Investors who choose to sell their units by October 13, 2026, avoid the conversion process and subsequent tax bureaucracy.
How Does the 20% Withholding Income Tax Work Upon Liquidation?
The liquidation of KISU11 is a taxable event, subject to a 20% withholding income tax on capital gains realized by the unitholder. The capital gain is the positive difference between the net asset value received upon delivery of the SNME11 units (plus any cash amounts) and the average acquisition cost the investor paid to buy KISU11 on the exchange.
Unlike standard FII trades on the exchange, where investors calculate and pay their own taxes via a DARF payment slip, the fund administrator (BTG Pafter Servicos Financeiros S.A. DTVM) is responsible for withholding the tax during a fund liquidation. Because of this, the financial institution needs to know exactly how much you paid for your units to calculate whether you made a profit and determine the correct amount to withhold.
Warning: The Unreported Average Cost Trap
If you fail to report your average acquisition cost on BTG Pactual's Investor Portal between October 16, 2026, and November 16, 2026, the administrator is legally required to use the lowest historical trading price of KISU11 units on the B3 as your acquisition cost. This will artificially inflate your capital gains and trigger a much higher tax bill than you actually owe.
What Is the Deadline to Declare Your Average Cost on BTG's Portal?
The window to submit average acquisition cost information opens on October 16, 2026, and closes strictly on November 16, 2026. Submissions must be completed digitally through the BTG Pactual Investor Portal.
For investors who purchased KISU11 units over the years at different prices, gathering brokerage notes and calculating the exact weighted average cost is essential. Missing this one-month deadline means the 20% withholding tax will be calculated using an unfavorable cost basis, reducing the net equity converted into SNME11 units.
When Will SNME11 Units Be Delivered to Unitholders?
New SNME11 units are scheduled to land in investors' custody accounts on November 23, 2026. Before that, on November 18, 2026, the administrator will release the conversion ratio and the precise amortization value.
The conversion ratio will determine how many SNME11 units each investor receives for every KISU11 unit they held. This ratio was one of the primary uncertainties highlighted in our previous analyses. Finally, on November 27, 2026, a final payment will be distributed to unitholders covering any remaining cash resources that were not converted into units.
| Liquidation Event | Official Date | What Investors Should Do |
|---|---|---|
| Last trading day on the B3 | 10/13/2026 | Decide whether to sell on the market or hold for conversion. |
| Start of average cost reporting | 10/16/2026 | Access the BTG Investor Portal and report your average cost. |
| End of average cost reporting | 11/16/2026 | Deadline to avoid taxation based on the lowest historical price. |
| Release of conversion ratio | 11/18/2026 | Check the proportion of SNME11 units you will receive. |
| Delivery of SNME11 units | 11/23/2026 | Verify the custody of the new units in your brokerage account. |
| Payment of remaining cash | 11/27/2026 | Receive any financial leftovers in your account. |
Is KISU11 Still Worth It at Today's Price of R$ 5.99?
Not for anyone pursuing the original thesis of a fund-of-funds tied to the Suno 30 Index. With units trading at R$ 5.99 (as of the 09/16/2026 close), KISU11 now acts merely as a temporary transition vehicle into SNME11, offering a significant discount to book value with a P/BV of 0.7851 against a net asset value per unit of R$ 7.63.
Previously, when units traded at R$ 6.40, the P/BV was 0.79. While the current discount may look appealing, buying KISU11 today means accepting a compulsory migration to a multi-strategy mandate under new management by Suno Gestora, alongside taking on operational risk and the tax complexities of liquidation. The steady monthly dividend of R$ 0.07 per unit, paid consistently for 17 straight months, will disappear with the fund's wind-down, and SNME11's distribution policy could look entirely different.
What Do Investors Need to Do Now to Avoid Losing Money?
Investors have two clear paths ahead before trading is blocked. The first option is to sell KISU11 units directly on the B3 by October 13, 2026, accepting the current market price to escape transition risk, illiquidity during the trading freeze, and the administrative burden of reporting your average cost on the portal.
The second option is to hold the units and migrate to SNME11. If you trust Suno's management and accept the new multi-strategy mandate, you must hold your units past October 13, 2026, and make sure to access the BTG Pactual Investor Portal between October 16, 2026, and November 16, 2026, to register your average acquisition cost. Ignoring this step will result in immediate financial losses through excessive income tax withholding.
Rico aos Poucos Verdict
NEUTRAL WITH HIGH RISK. KISU11's original investment thesis is dead. The fund is now simply a transition vehicle with an expiration date set for October 13, 2026. The 0.7851 discount to book value is real, but the price you pay is tax complexity and a shift to a fundamentally different fund profile (SNME11). For investors who want to avoid the headache of average cost calculations and portal submissions, selling before the trading deadline is the safest route.
