Quick answer: the Spain–Paraguay Double Tax Treaty entered into force on 14 October 2024 and, for most income taxes, has applied since 1 January 2025. It does not automatically make cross-border income tax-free. It allocates taxing rights between both countries, limits certain source-country taxes and provides mechanisms to relieve double taxation.
For entrepreneurs, investors and individuals with connections to both Spain and Paraguay, the treaty is far more important than a simple table of withholding rates.
It can affect tax residence, dividends, interest, royalties, business profits, real estate, employment income, pensions, capital gains and the relief of double taxation.
It also contains important anti-abuse provisions. It should therefore be read as a coordination framework, not as a shortcut to tax-free income.
When did the Spain–Paraguay treaty become effective?
The treaty was signed in Santo Domingo on 25 March 2023 and entered into force on 14 October 2024.
For taxes assessed by reference to a tax year and most source-country taxes, it took effect from 1 January 2025.
That means it is fully relevant to ordinary Spain–Paraguay tax planning in 2026.
Which taxes does the treaty cover?
Paraguay
- Personal Income Tax (IRP);
- Business Income Tax (IRE);
- Dividend and Profit Tax (IDU);
- Non-Resident Income Tax (INR).
Spain
- Personal Income Tax (IRPF);
- Corporate Income Tax (IS);
- Non-Resident Income Tax (IRNR).
The treaty does not replace domestic tax law. The analysis starts with the tax position under each country’s internal rules and then applies the treaty to allocate, limit or relieve that taxation.
What if both Spain and Paraguay consider you tax resident?
A Paraguayan residence permit, ID card or tax documentation does not by itself prevent Spain from continuing to treat someone as Spanish tax resident under Spanish domestic law.
If an individual is resident in both countries under their domestic rules, the treaty applies this tie-breaker sequence:
| Order | Treaty test |
|---|---|
| 1 | Permanent home available |
| 2 | Centre of vital interests |
| 3 | Habitual abode |
| 4 | Nationality |
| 5 | Mutual agreement between competent authorities |
For a non-individual that would otherwise be resident in both States, the treaty looks to the place of effective management.
At N30 Paraguay, we treat this as a core planning issue: a defensible Spain–Paraguay move is built around a coherent personal, economic and business reality, not around collecting Paraguayan documents while leaving the underlying facts unchanged.
For background, see our guide to tax residency in Paraguay.
Business profits and permanent establishments
Business profits of an enterprise resident in one State are generally taxable only there unless the enterprise carries on business in the other State through a permanent establishment.
The other State can then tax profits attributable to that permanent establishment.
The treaty includes, among other examples, a place of management, branch, office, factory, workshop and certain dependent-agent situations involving the habitual conclusion of contracts.
A building site or construction or installation project becomes a permanent establishment when it lasts more than nine months.
This matters for a founder who moves to Paraguay while retaining a Spanish company, or for a Paraguayan business operating in Spain. Incorporating a Paraguayan entity does not automatically determine where every part of an international business is taxable.
Dividends: the treaty does not simply impose a 10% rate
Where the beneficial owner is resident in the other State, the treaty contains three different source-country limits:
| Beneficial owner | Maximum source-country tax |
|---|---|
| Company directly holding at least 50% of the payer’s capital throughout a 365-day period including the payment date | 5% |
| Qualifying pension fund resident in the other State | 0% |
| Other cases | 10% |
These limits do not affect the corporate tax imposed on the company’s profits before distribution.
Spanish individual owning a Paraguayan EAS
Paraguay’s domestic IDU rate is currently 15% when the dividend recipient is non-resident.
If a Spanish tax resident individual is the beneficial owner of a dividend from a Paraguayan company and qualifies for treaty benefits, the source-country limit is generally 10%.
The 5% rate does not apply merely because an individual owns 100% of the EAS. It requires the beneficial owner to be a company satisfying the 50% ownership and 365-day conditions.
Spanish company owning a Paraguayan company
If a Spanish company is the beneficial owner and directly owns at least 50% of the Paraguayan payer for the required period, the treaty can limit the Paraguayan source tax to 5%.
The Spanish tax treatment must then be analysed separately, including any domestic exemption, credit or participation requirements.
When structuring Spain–Paraguay ownership, N30 Paraguay looks beyond the withholding percentage. The useful analysis is the complete chain: company profit → distribution → source-country tax → shareholder taxation → available credit or exemption in the residence country.
Interest: general 5% source-country limit
Interest may be taxed in the recipient’s State of residence and also in the source State, but where the beneficial owner is resident in the other State the source-country tax is generally capped at 5% of gross interest.
The treaty also contains cases of exclusive residence-country taxation involving, among others, States or central banks, public financing, financial institutions, credit sales and qualifying pension funds.
Royalties: general 5% source-country limit
Royalties arising in one State and paid to a beneficial owner resident in the other can be taxed at source, but the treaty generally caps that tax at 5% of the gross amount.
The definition covers rights such as copyright, patents, trademarks, designs, secret processes and industrial, commercial or scientific know-how.
Real estate and property gains
If a Spanish resident owns real estate in Paraguay, Paraguay may tax income derived from that property. Conversely, Spain may tax Spanish real-estate income earned by a Paraguayan resident.
Gains from disposing of real estate situated in the other State may also be taxed where the property is located.
The treaty also contains rules for certain disposals of shares or rights deriving more than 50% of their value, directly or indirectly, from real estate in the other State.
Employment income and the treaty’s 183-day rule
Employment income of a resident of one State is generally taxable there unless the employment is exercised in the other State.
Exclusive residence-country taxation can remain where all three conditions are met:
- the employee is present in the other State for no more than 183 days in any twelve-month period beginning or ending in the relevant tax year;
- the remuneration is paid by or on behalf of an employer not resident in the other State;
- the remuneration is not borne by a permanent establishment of the employer there.
This 183-day rule concerns employment income under the treaty. It should not be confused with domestic rules for establishing or certifying Paraguayan tax residence.
Pensions
As a general rule, pensions and similar remuneration from former employment paid to a resident of one State are taxable only in that State of residence.
Government-service pensions are subject to separate rules.
How does the treaty relieve double taxation?
The treaty does not always give only one country the right to tax. In many cases it permits source-country taxation while requiring the residence country to relieve the resulting double taxation.
Spanish resident with Paraguay-taxed income
Spain permits a deduction, subject to Spanish domestic rules and applicable limits, for qualifying income tax paid in Paraguay.
Paraguayan resident with Spain-taxed income
Paraguay provides a corresponding credit mechanism for qualifying Spanish tax, subject to domestic rules and treaty limits.
For dividends, Article 21 also addresses, in specified circumstances and subject to domestic law, corporate income tax effectively paid by the distributing company.
Relief must be supportable with residence certificates, withholding evidence and appropriate records.
The territorial-tax clause many people overlook
Article 26 contains a particularly important rule because Paraguay operates a territorial tax system.
While one State maintains a territorial system, if Articles 6 to 20 allocate an exclusive taxing right to that State but the income is not treated as arising there under its territorial rules, the other State may tax that income as if the treaty had not entered into force.
The treaty is designed to prevent double taxation, not to manufacture double non-taxation through a mismatch between treaty rules and Paraguay’s territorial system.
A conclusion that “Paraguay does not tax it, therefore Spain cannot tax it either” can therefore be wrong.
Beneficial ownership, anti-abuse and exchange of information
Beneficial ownership
Reduced treaty rates on dividends, interest and royalties depend on the recipient being the genuine beneficial owner.
Principal Purpose Test
Treaty benefits can be denied where it is reasonable to conclude that obtaining the treaty benefit was one of the principal purposes of an arrangement and granting it would conflict with the object and purpose of the relevant provision.
CFC and domestic anti-abuse rules
The treaty does not prevent Spain or Paraguay from applying domestic controlled-foreign-company, thin-capitalisation or other anti-abuse rules.
Exchange of information
The competent authorities can exchange information foreseeably relevant to the treaty or domestic tax laws. The treaty expressly prevents refusal solely because information is held by a bank, financial institution or fiduciary/representative person.
The treaty is a framework for tax coordination and transparency, not secrecy.
Practical Spain–Paraguay examples
| Situation | Main issue |
|---|---|
| Spanish entrepreneur moves to Paraguay but retains home, family and business interests in Spain | Domestic residence + Article 4 tie-breaker |
| Spanish resident receives dividends from a Paraguayan EAS | Domestic IDU + general 10% treaty source cap + Spanish treatment |
| Spanish company holds more than 50% of Paraguayan company | Potential 5% source cap if beneficial ownership and 365-day test are met |
| Spanish resident rents an apartment in Asunción | Paraguay may tax property income; Spain applies residence-country rules and double-tax relief |
| Paraguayan resident owns rental property in Spain | Spain may tax Spanish real-estate income |
| Founder manages a Spanish company while living in Paraguay | Company residence, effective management, PE and Spanish domestic law |
Do you have income, companies or investments between Spain and Paraguay?
The treaty can reduce double taxation, but the result depends on residence, income type, beneficial ownership and the actual structure. We review the full cross-border position before applying isolated percentages.
Common mistakes
1. Assuming every dividend is capped at 10%
The treaty contains 5%, 0% and 10% limits depending on the recipient and conditions.
2. Using a 10% interest rate
The general treaty cap is 5%.
3. Assuming Paraguayan documents automatically end Spanish tax residence
Dual residence can require the treaty tie-breaker.
4. Confusing the employment 183-day rule with Paraguayan tax-residence rules
They answer different questions.
5. Assuming income untaxed in Paraguay must also be protected from Spanish tax
Article 26’s territoriality clause can prevent that result.
6. Ignoring beneficial ownership
An intermediary entity does not automatically qualify for treaty benefits.
7. Ignoring effective management
Moving personally to Paraguay while continuing to manage a Spanish company requires separate analysis.
8. Failing to retain evidence of foreign tax paid
Foreign tax relief must be supportable.
Frequently asked questions
Is the Spain–Paraguay Double Tax Treaty in force?
Yes. It entered into force on 14 October 2024 and applies to most income-tax matters from 1 January 2025.
Does the treaty mean I only pay tax in one country?
Not necessarily. Some income can be taxed at source and in the residence State, with the residence State then providing double-tax relief.
What is the maximum tax on dividends?
5% for qualifying companies directly holding at least 50% for the required 365-day period, 0% for qualifying pension funds and 10% in other cases, subject to treaty requirements.
What is the general interest cap?
Generally 5% of gross interest, with specific exceptions.
What about royalties?
The general source-country limit is 5% of the gross royalty where treaty conditions are met.
What happens if I live in Spain and own property in Paraguay?
Paraguay may tax income and qualifying gains from Paraguayan real estate. Spain then applies its residence-country rules and available double-tax relief.
Does the treaty itself prove that I am no longer Spanish tax resident?
No. Domestic residence rules are applied first. If both States regard you as resident, the treaty tie-breaker becomes relevant.
Do I need a tax residence certificate?
In practice, residence evidence is fundamental when claiming treaty treatment. See our guide to Paraguayan tax residence.
Does the treaty create secrecy from Spanish tax authorities?
No. It contains an explicit exchange-of-information article and anti-abuse provisions.
A tax treaty is a coordination tool, not a tax shortcut
The Spain–Paraguay treaty creates valuable certainty around residence conflicts, source-country tax limits and double-tax relief.
But it is also designed to prevent artificial double non-taxation.
At N30 Paraguay, we analyse it as one piece of the complete structure: residence, business activity, companies, investments, income source and obligations that remain in Spain.
The right question is not “what percentage does the treaty say?”, but “which treaty article applies to this income, which country can tax it and how is double taxation relieved afterwards?”.
Review your Spain–Paraguay structure before implementing it
If you retain Spanish companies, property, investments or income while establishing residence or activity in Paraguay, we review how both systems interact and what the treaty actually changes in your case.
Official sources and last review
Last reviewed: August 2026.
- Spanish Official Gazette (BOE) — Spain–Paraguay Double Tax Treaty and Protocol.
- Spanish Ministry of Finance — Double Tax Treaty list.
- DNIT — Dividend and Profit Tax (IDU).
This article is for general information only and does not replace individual tax advice. Treaty outcomes depend on facts, residence, beneficial ownership, domestic law and supporting documentation.
