Certificados de Aforro Pull €537.6 Million in April 2026 — Twelve-Month High Drives Outstanding Stock to a Record €41.7 Billion as the Series F Per-Saver Ceiling Stepped Up From €100,000 to €250,000 on 24 April

Portuguese households pushed a net €537.6 million into Certificados de Aforro (CA) in April 2026 — the strongest single-month inflow in the last twelve months and the nineteenth consecutive month of stock expansion — according to Banco de Portugal data flagged in the IGCP monthly file. The outstanding balance crossed an all-time high of €41.698 billion, with the Series F bond doing the heavy lifting after the Finance Ministry tripled the per-saver subscription ceiling. The Friday 22 May read sits alongside an IGCP gross-rate decision that holds Series F at 2.195% for the May tranche, marginally below the 2.238% of April but still inside the band that has kept household demand pinned to the product since the European Central Bank began the 2024 cut cycle.

The Series F Ceiling That Unlocked the April File

The single mechanical driver behind the April surge is a portaria signed by Finance Minister Miranda Sarmento that took effect on 24 April 2026 and lifted the per-saver maximum cumulative investment in Series F from €100,000 to €250,000. Series F is the only Certificados de Aforro line currently accepting new subscriptions; the legacy A, B, D and E series sit on run-off taxas. The ceiling change unlocked a household segment that had been queueing top-up demand against the prior cap — chiefly retirees who had already maxed out the €100,000 line and could not deploy further savings into the same vehicle. The April file confirms that the demand was real rather than theoretical.

How the IGCP Rate Compares With the Bank Deposit Curve

Series F is a six-year retail savings bond with a quarterly-reset gross rate that tracks a fixed spread above the three-month Euribor average, capped at 2.5% and floored at 0%. The May 2026 read of 2.195% sits well above the typical Banco de Portugal household-deposit aggregate read of roughly 1.6% on new term deposits up to twelve months, and at parity-or-better with the best one-year fixed-term offer at the listed retail banks. The product carries a fully state-guaranteed credit profile and a 20-day exit window — features that keep the demand profile sticky even at narrower interest-rate spreads. Households are not stretching for yield; they are repricing a Eurozone deposit market that has settled below the IGCP retail offer for the third consecutive quarter.

The Fiscal-Side Read

The €41.7 billion outstanding stock now equals roughly 16% of Portuguese public debt held outside official institutions, and the household-saver base sits at the most stable end of the IGCP funding profile — long average duration, low rollover risk, and immune to the sovereign-spread volatility that has been a feature of the May Eurozone bond tape. The Conselho de Finanças Públicas earlier in the week flagged the household-savings vehicle as a structurally positive funding channel for the Portuguese treasury under the storm-cluster recovery scenario, with the caveat that the per-saver ceiling lift has front-loaded a stock build that would otherwise have spread across the remainder of 2026.

What This Means for Expats

If you are a Portuguese tax resident with surplus cash: Series F at 2.195% gross is the cleanest Eurozone-area state-guaranteed retail offer, with a 20-day exit window and a 20.65% withholding tax that drops to 17.2% on holdings beyond five years.
If you are a non-resident: Certificados de Aforro require a Portuguese fiscal number, a bank account at a CGD or IGCP-counter institution, and an Aforronet enrolment — not a closed market, but not a same-day signup either.
If you hold a maturing Series A, B, D or E line: the legacy taxas remain in force on existing balances, but new subscriptions can only enter Series F, which now carries the lifted €250,000 ceiling.