- A UAE free-zone company and Spanish autónomo registration are business choices. Portugal’s D8 and Thailand’s DTV are residence/visa routes, not company structures.
- Where you work and manage a business can matter more than where a client pays.
- Compare tax, social contributions, renewals, accounting and banking together before incorporating.
- Get the work-permission and filing position in writing before the first invoice.
What these business and visa routes actually allow
Perhaps you already have a company, or an agent has offered to set one up alongside a visa.
This guide helps you ask the right questions before paying setup fees. It does not choose a legal structure or tax residence for you.
If you are an employee, do not assume becoming a contractor makes payroll questions disappear.
Who controls your hours, tools, work and commercial risk still matters.
Ask your employer to review the arrangement before changing a contract to make the move look easier.
Portugal D8 and ENI are separate concepts. D8 concerns residence; independent activity / an empresário em nome individual concerns how the business operates.
Confirm the appropriate activity registration, invoices, tax and social-security duties with AT or an adviser. Neither is an automatic IFICI tax entitlement.
There are four decisions: permission to live and work, personal tax residence, the way you invoice or receive salary, and business obligations where the work happens.
Solve them separately, then check that the answers agree.
Opening a company can add filings and costs without changing the tax treatment of money you receive personally.
| Route | What it actually provides | What still needs checking |
|---|---|---|
| UAE free-zone company | A licensed business in a particular free zone; residence sponsorship may be available under its rules. | Permitted activity, corporate tax, substance, VAT, owner remuneration, accounts and renewals. Zero-rate corporate treatment is conditional, not automatic. |
| Spanish autónomo | Registration for self-employed activity, including tax and social-security administration. | Immigration permission, income-tax treatment, contributions, VAT, invoicing and whether the activity is genuinely independent. |
| Portugal D8 / independent activity | A commonly used name for the remote-work residence/visa route. | Portuguese tax residence, employee payroll or independent-activity registration, social security and any separate IFICI eligibility. |
| Thailand DTV | A visa route that includes specified workcation categories. | Permitted activities, each stay’s limits, Thai tax residence, income source and remittances. Local employment/business activity requires its own review. |
These are not equivalent legal products. Immigration approval does not settle tax, payroll or company residence.
For a UAE move, check UAE residence and business routes against the work you will actually do.
Why company location does not settle personal tax
Compare the recurring bill, not the setup quote
Ask for a three-year schedule: registration, licence renewal, residence renewals, bookkeeping, tax returns, payroll, bank charges, insurance and closure.
Record which charges are compulsory and which belong to the agent’s package.
Ask what happens if a bank declines the application or a residence application is delayed.
For a UAE free-zone business, the Federal Tax Authority distinguishes qualifying free-zone income from other income.
The zero rate depends on conditions; ordinary freelance revenue should not be assumed to qualify merely because the company has a free-zone address.
For Spain, self-employment involves both the tax census and social-security registration.
For Portugal, an independent earner may need to open an activity with the tax authority and issue the appropriate invoices or receipts.
Neither a Spanish residence card nor a Portuguese D8 approval replaces those work-related registrations.
Household example
Illustrative composite, not resident testimony or personal advice
A designer receives USD 8,000 a month from two foreign clients and is choosing between Valencia, Lisbon, Dubai and Bangkok.
An agent suggests a UAE company before she has chosen where to live.
It is “Where will I perform and manage this work for the next year?”
If she lives and works in Valencia, advisers should assess the Spanish registration and resident-tax position, even if invoices come from a foreign company.
If she moves to Dubai, she should check the licence activity, business tax, banking and home-country departure position.
In Lisbon, the remote-work residence route and the tax/independent-work registrations are separate.
In Bangkok, she needs a permitted work arrangement and a review of income source, days and remittances.
The net-pay estimator supplies an illustration, not the business-tax calculation.
Traps to avoid
- Buying a visa and assuming tax is solved. Keep a separate day-count and residence review.
- Calling every payment a dividend. Its legal and tax treatment depends on the actual arrangement, not a label on a transfer.
- Mixing business and household money. Document salary, distributions, reimbursements and owner loans properly.
- Assuming a foreign bank makes income foreign-source. Record where services were performed and decisions were made.
- Ignoring the exit. Ask about final returns, licence cancellation, accounts and records before signing the setup contract.
A visa, a tax position and a work arrangement need their own checks.
- 1Can you live and work there?
Check the route for the work you will actually do.
- 2Where will you owe tax?
Map your days, income types and continuing home-country ties.
- 3Who handles the paperwork?
Confirm payroll, contributions, filings and deadlines before committing.
Match the calendar to Spanish tax by work status before estimating tax payments.
How to choose a compliant remote-work arrangement
Rules & evidence
Use the responsible authority for each layer. The UAE Federal Tax Authority explains the conditions for qualifying free-zone treatment.
- Spain’s tax census and Importass explain registration duties. Portugal’s AIMA describes the remote-work residence route, while the tax authority explains opening an independent activity.
Thailand’s Foreign Ministry describes visa categories, and the Revenue Department addresses income source, residence and remittance tax.
Save the dated source, your adviser’s conclusion and the facts it relies on.
Recheck when your clients, role, residence, turnover or contracting authority change.
Practical checklist
- Write down your intended physical work location, days and client/employer countries.
- Confirm the permitted activity under the actual residence or visa route.
- Give an adviser your contracts, existing company details, owner payments and household ties.
- Ask for separate conclusions on personal tax, payroll/social contributions, business presence and VAT.
- Obtain an itemized three-year setup, maintenance and closure quote.
- Ask a bank which documents it needs before paying for the structure.
- Keep a filing calendar and a cash reserve for tax, renewals and late client payments.
When to hire an advisor
Get advice before incorporating, moving company management, changing employee status or paying yourself through a new structure.
It is particularly worthwhile if you retain a home-country company, have several owners, can sign contracts for an employer or expect substantial local clients.
Ask for a written answer with the applicable countries, required filings, deadlines and facts that would change the advice.
You do not need a grand report before researching a city.
You do need a reliable answer before starting the work, signing the company setup contract or making a filing election with a short deadline.
Do not assume a visa grants a tax incentive; review Portugal After NHR: IFICI Eligibility vs Ordinary Income Tax before using an incentive in your budget.
Learn More
Source review: consult the linked authorities for current requirements; provider acceptance and quotes may differ. Last editorial update: October 2026.
Our guides are prepared with AI assistance and reviewed by the publisher. How we work →
- UAE Federal Tax Authority: free-zone corporate-tax conditions
- Spanish Tax Agency: Modelo 036 and tax census
- Spanish Social Security: self-employed registration
- AIMA: remote-work residence route
- Portuguese Tax Authority: opening an independent activity
- Thai Foreign Ministry: visa categories, including DTV
- Thai Revenue Department: foreign-income tax guide
Sources checked October 2026. Verify current procedures with the responsible authority before acting.
Frequently Asked Questions
Are D8 and DTV business entities?
No. They concern immigration routes.
Entity or independent-activity registration, permitted work and tax must be examined separately. A residence label does not replace lawful invoicing or employer compliance.
Does a UAE freezone mean every individual pays no corporate tax?
No. Entity treatment and the natural-person business framework have different conditions.
Do not apply a personal wage exclusion to business receipts or treat a freezone license as an automatic exemption.
Can I invoice my existing employer as a contractor to solve everything?
Not automatically. The actual working relationship, permitted activity, payroll, contributions and company risk require review.
A contract label cannot override local classification rules. FTA: corporate tax for natural persons.