Adriana da Costa.
Independent tax advisory

Tax structuring and advisory for crypto investors and businesses.

Ex-Big Four background. Two years in independent practice. Fluent in crypto, by practice. Featured on Bitalk and Dividendos Portugal.

Book a discovery call → Email me your situation
About

Adriana da Costa.

Independent tax advisor with a legal background. Head of Finance at Chary. Ex-Big Four. Two years in independent practice.

Adriana da Costa, half-body portrait
I craft advice specific to your case, never from a template.
My advice always includes a practical solution for your case.
Honest about fit. If your case sits outside my area, I'll point you to someone better suited.

Read more about my career

Book a discovery call →
On air

On air.

Conversations on Portuguese taxation, crypto, and cross-border practice, on podcasts, on video, and on stage. More to come...

Bitalk podcast with Adriana da Costa
Watch on YouTube
Podcast / Bitalk
Think Conference 2026 Adriana da Costa, oradora na Think Conference 2026
See speaker profile
Conference / Think Conference 2026
Dividendos Portugal podcast with Adriana da Costa
Watch on YouTube
Podcast / Dividendos Portugal
Who I work with

If any of this is your situation.

The specific cases I take on, where my expertise lies. If you recognise yourself in one of these, we should talk.

Case 01 A clean and defensible crypto filing.

Positions across multiple platforms and chains. The post-2023 Portuguese regime and MiCA are now baseline; your declaration needs both built in.

Case 02 Tax relocation.

Pre-move tax positioning, exit-tax timing, NHR or IFICI eligibility, and the residency calendar to plan against. The destination chosen with the rules already mapped.

Case 03 VAT for companies and ecommerce.

Portuguese and EU VAT for service companies, retailers, and ecommerce operators. IOSS, OSS, intra-EU sales, customs and Portuguese filings, all inside one structure.

Case 04 When your case doesn't fit into a category.

Cross-border income, complex holdings, family transitions, founders compensated in tokens, inheritances with foreign assets. The situations that do not fit into a category and need to be thought through in writing, not answered from a template.

Every month I turn down clients I would have liked to work with.

If your situation is here, book the call before I close the book for the quarter.

Book a discovery call →
Adriana da Costa, direct portrait

I will not be everyone's advisor.
I would like to be yours.

How we can work together

From first call to delivered plan.

Four steps. Fixed scope, fixed price, written deliverable.

Step 01

Discovery call

15 minutes by video. You sketch the situation, I tell you whether I am the right fit, which regime likely applies, and what an engagement would look like. No prep, no sales pitch.

Step 02

Written proposal

Within 48 hours. Fixed scope. Fixed price. No obligation.

Step 03

Kickoff

30% deposit. I start work on your case immediately, following the plan.

Step 04

Delivery and review call

Written deliverable plus 60-minute review call. Implementation steps included.

See engagement types and starting prices →
Dubai

From December 2026.

Lisbon stays at full capacity. Dubai adds a base for cross-border cases. Be the first to know when bookings open.

Ready to start?

Book a free 15-minute discovery call. Or send your situation by email and get a written response back.

Book a discovery call → finance@adricosta.com