Taxation for Portuguese Residents

Hold your 8LNDS past 365 days and the capital gain drops to zero — but your monthly USDC interest never escapes the 28% Category E rate. Here is why timing changes everything.

Portugal is one of the most crypto-friendly jurisdictions in Europe. Capital gain from the sale of crypto assets after 365 days of holding is fully tax-free. Sale within 365 days is taxed at a 28% flat rate. Passive income (lending, staking, rewards — USDC interest income and receiving 8LNDS) is taxed as Category E income at 28% regardless of the holding period. The declaration is Modelo 3 + annexes due by June 30 of the following year. DAC8 applies from 2026. This article is a general guide, not individual tax advice.

Basic parameters

Parameter	Value
Short-term capital gain (< 365 days)	28% flat rate (Category G)
Long-term capital gain (≥ 365 days)	0% — tax-free
Passive income (staking/lending)	28% flat rate (Category E) — no holding-period relief
Cost basis method	FIFO
Tax period	January 1 – December 31
Filing deadline	By June 30 of the following year
Payment date	By August 31
Main form	Modelo 3 (IRS)
Annexes	Anexo G (capital gains), Anexo E (capital income), Anexo J (foreign income)
Legal basis	Categories B, E, G Personal Income Tax Code

Three categories of crypto income in Portugal

The Portuguese tax authority (Autoridade Tributária — AT) divides crypto income into three categories:

Category	What it includes	Rate
Category B	Business / professional activity (trading as a primary activity)	14.5–53% progressive
Category E	Capital income — passive yield (staking, lending interest, rewards)	28% flat
Category G	Capital gains from disposal of crypto assets	28% short-term / 0% long-term

For most 8lends private investors, Category E (USDC interest income, PoL, referral 8LNDS) and Category G (sale of 8LNDS and positions) apply.

Three types of income on 8lends — tax treatment in Portugal

USDC interest income (19–25% APR)

Category E — passive capital income:

Taxed at a flat 28% at the moment of receipt
The holding period is irrelevant — you cannot make it tax-free through 365 days
Declared in Anexo E (if 8lends qualifies as a foreign source — also Anexo J)

Example: an investor received €2,000 in USDC interest over a year → tax 28% × €2,000 = €560.

Receiving 8LNDS via Proof of Loan / referrals

Category E — passive crypto income:

Taxed at a flat 28% at the moment of receipt based on market value (in EUR)
Cost basis of new 8LNDS = their market value at the moment of receipt
Subsequent sale = Category G capital gain

Example: received 40,000 8LNDS at a price of $0.001 = $40 ≈ €37 → tax 28% × €37 = €10.36.

Capital gain from selling 8LNDS or positions — Category G

This is the most interesting part thanks to the 365-day rule:

If you sell within 365 days of receipt → 28% tax on the gain
If you sell after 365 days → 0% — fully tax-free
Cost basis = value at the moment of receipt (which was already taxed as Category E)
⚠️ A token swap resets the timer — for example, swapping 8LNDS for USDC = new receipt of USDC, new holding period

Example: 14 months after receiving 40,000 8LNDS at €37 — sold at €111 → gain €74 → tax-free (holding >365 days).

Example 2: sold after 6 months → gain €74 → tax 28% × €74 = €20.72.

A feature of 8lends — monthly interest payments

This is important for tax optimization:

Each USDC interest payment is a new receipt of an asset
Each receipt starts a 365-day timer for that portion of USDC
If you sell USDC immediately — 28% short-term gain (or potentially 0% if the USDC has no gain — it's a stablecoin)
If you hold for >365 days — tax-free when sold for other assets

USDC is a stablecoin, so the gain is usually close to zero. The real tax risk arises with long-term volatility of currency pairs (EUR/USD).

The most important strategy — holding 365+ days

For 8LNDS, tax optimization is straightforward:

You receive 8LNDS via PoL → 28% tax on the €-value at the moment of receipt (Category E)
You hold the tokens for 365+ days
You sell → 0% tax on the capital gain (Category G long-term)

This provides a substantial advantage over residents of Spain, France, and other EU countries, where capital gains are taxed regardless of the holding period.

⚠️ A swap resets the timer. If you want a tax-free sale — don't trade 8LNDS within 365 days, hold and sell once after a year.

Cost basis — FIFO in Portugal

Portugal applies FIFO (First In First Out):

The first tokens received are the first to be sold
This applies to determining the 365-day holding for specific units
If the first portion was acquired on January 1, 2025, and sold on January 5, 2026, it falls outside taxation under the 365-day rule; if sold on December 30, 2025, the short-term rules apply

Blockpit automatically applies FIFO for Portuguese reports.

Losses and carry-forward

Short-term losses (Category G) can be offset against short-term gains of the same year
Long-term losses are not offset, because long-term gains are tax-free anyway
Carry forward of losses is usually not available for crypto capital losses in Portugal (an important difference from Spain and Germany)
Category E (lending income) has no losses in the standard sense

⚠️ If an 8lends investment defaulted during the year — discuss with a tax advisor how to qualify it.

NHR (Non-Habitual Resident) — special regime

If you moved to Portugal under the NHR regime (a 10-year preferential tax status):

Foreign-source income can often be exempt from tax in Portugal
Crypto income from 8lends (a platform in SVG, assets on the Base blockchain) — may qualify as foreign source
But the specific application is complex and depends on the details of your situation
NHR was substantially changed from 2024 — new rules (IFICI — Incentivo Fiscal à Investigação Científica e Inovação) limit the benefits

⚠️ For NHR residents, consultation with a Portuguese contabilista certificado is mandatory — the rules are constantly changing.

DAC8 from 2026

From January 1, 2026, DAC8 applies in Portugal:

Autoridade Tributária (AT) receives data on crypto transactions automatically
Applies to platforms serving EU residents
First reports between January and September 2027
Evading declaration becomes practically impossible

Anexo J — critical for 8lends

8lends is operated by Alpha Systems LLC (SVG) — a foreign company. This means:

Income from 8lends is potentially classified as foreign income
Declared via Anexo J in addition to Anexo E (Category E) or Anexo G (Category G)
Anexo J requires specifying the source country (Saint Vincent and the Grenadines)
A double tax treaty may apply (if any) — but there is no double taxation treaty between Portugal and SVG

This is an important consideration relative to fully domestic investments — an additional annex to the declaration is needed.

Checklist for a Portugal resident on 8lends

✅ Keep a full history of transactions (via Blockpit or basescan)
✅ Declare USDC interest income as Category E income (Anexo E + Anexo J)
✅ Declare the receipt of 8LNDS as Category E income at the moment of receipt
✅ Declare short-term capital gains from sales within 365 days (Anexo G)
✅ Declare long-term capital gains in Anexo G1 (even if tax-free — mandatory)
✅ Use FIFO for cost basis
✅ Keep documents for at least 10 years
✅ File Modelo 3 by June 30, pay by August 31

Frequently asked questions

Is it true that in Portugal you can sell cryptocurrency without tax after 365 days? Yes, for capital gain from disposal (Category G) — after 365 days of holding the tax is 0%. But passive income (staking, lending, rewards — that is, USDC interest from 8lends and receiving 8LNDS) is taxed at 28% at the moment of receipt, regardless of the period. These are two different types of income.

How do I count the 365 days for USDC interest from 8lends? Each monthly interest payment = a new receipt. The 365-day counter starts from the moment of each payment. If you received interest in January 2025 and sold the USDC in February 2026 — this is long-term (tax-free on the gain). But the very fact of receipt was already taxed at 28% as Category E in the year of receipt.

Which is better — receiving 8LNDS via PoL or buying them on Uniswap? Receiving via PoL = 28% tax as Category E at the moment of receipt, then 365 days for a tax-free sale. Buying on Uniswap = no tax at purchase, 365 days for a tax-free sale. Overall, buying is more tax-efficient, but it gives fewer tokens for the same investment amount (PoL gives free tokens on top of the investment in the project). The full picture depends on your strategy.

Does a swap reset the 365-day timer? Yes. Swapping one crypto asset for another (for example, 8LNDS for USDC) is considered a disposal and an acquisition — for the new tokens received, the timer starts over. This is critical for the tax-free strategy.

What if I am an NHR resident? The NHR regime provides substantial benefits on foreign income, and 8lends may qualify as a foreign source. But: (1) NHR was substantially changed from 2024 — the old rules no longer apply to new residents, (2) application to crypto income is complex and requires individual consultation. You must work with a Portuguese tax advisor on NHR/IFICI.

Can I use Blockpit to prepare Modelo 3? Not directly — Portugal is not among Blockpit's 10 fully supported countries with pre-filled forms. Blockpit generates a generic report that you use as a basis for filling out Modelo 3 with a Portuguese consultant.

What if I receive less than €500 a year via 8lends? Technically — the 28% tax applies to any amount of Category E income, there is no tax-free minimum (unlike Germany with its €256). In practice — small amounts often go untracked by the tax authority, but with DAC8 this is changing. Declaring is recommended.

What is the tax amount on €1,000 of interest income from 8lends? Flat 28% × €1,000 = €280. This applies regardless of whether you are a new or experienced crypto investor.

What about wealth tax? In Portugal there is no general wealth tax on crypto assets. This is another difference from Spain (Modelo 714) and other countries.

What if the tax year ended and I didn't declare? A declaração de substituição — a corrected declaration — is possible. The sooner — the smaller the penalty. Standard penalties for non-filing range from €150 to €3,750 + a percentage of the tax debt. Urgently see a tax advisor.

Does VAT apply? No. According to ECJ clarifications (the Hedqvist case), crypto exchange transactions are exempt from VAT in the EU, including Portugal.

What if I am a citizen of the Russian Federation but a Portuguese tax resident? Portuguese tax residency is determined by place of residence (>183 days or center of vital interests), not by citizenship. If you are a Portuguese tax resident — you pay under Portuguese rules on worldwide income.

What should I declare in Anexo G1 even if tax-free? In Portugal, it is mandatory to declare all capital gains, including tax-free long-term gains. They go in Anexo G1. Failure to report — even tax-free transactions — can lead to penalties.

⚠️ This article is a general guide to approaches, not individual tax advice. Portuguese crypto taxation is developing rapidly, especially after the NHR reform from 2024. For decisions on your situation, consult a qualified Portuguese contabilista certificado or a tax advisor specializing in crypto.