Your client got a letter. Now they need to prove where they were.
They send you Google Maps screenshots. You need certified, legally defensible proof that existed at the time of each presence. ResidenceSafe delivers it: biometrically verified, GPS-sealed, blockchain-stamped, eIDAS 2 PAdES LTA signed.
The Problem You Know
The evidence problem you already know
Clients relocate for tax benefits but can't prove physical presence when audited. Working backwards from a tax authority letter means reconstructing presence from memory, bank statements, and flight bookings. None of it is certified, immutable, or designed to prove physical presence.
- Liability
Professional liability when evidence is weak
You face professional liability when your client's evidence doesn't hold. The question is never whether they were there — it's whether they can prove it to the standard the authority requires, and whether that proof holds when challenged.
- Reconstruction
Evidence assembled after the fact
Spreadsheets are self-declarations. Boarding passes prove transit, not presence. Utility bills prove a contract, not that someone was home. None of it was designed to answer where a person physically was on a specific day.
- Standard
Different in kind, not just degree
ResidenceSafe records are different in kind. Each check-in answers the four things an authority tests — where, when, who, and proof — and none of them can be altered after the fact.
What they test
Four things every authority tests at once
Every audit of residency comes down to the same four questions. Each ResidenceSafe record answers all four simultaneously, at the moment of presence, immutably.
- Where
A GPS coordinate, cross-checked and anti-spoofed
Physical presence is verified at the GPS level, not the country level. Anti-spoofing checks confirm the coordinate is real. The record is sealed with the exact location before the session closes.
- When
An external NTP timestamp, sealed on-chain
The timestamp comes from external NTP servers, not the device clock. It cannot be spoofed or backdated. Sealed on the blockchain the moment the check-in is created, the time is fixed permanently.
- Who
A biometric identity verification, not a self-declaration
Biometric liveness detection ties each record to a verified legal identity. The check-in cannot be delegated, faked, or performed by a third party. Identity is confirmed at the moment of presence, not assumed.
- Proof
An eIDAS 2 PAdES LTA signature the authority verifies alone
Reports are signed with eIDAS 2 PAdES LTA qualified electronic signatures. Any tax authority, court, or third party can verify authenticity independently — without contacting ResidenceSafe and without relying on the taxpayer's declaration.
How It Works
Three steps. Zero manual tracking.
No spreadsheet reconstruction. Evidence builds automatically, day by day.
- 01
Client downloads the app
Available on iOS and Android. A free tier lets clients start immediately. No onboarding calls, no contracts, no hardware.
- 02
Daily check-in: selfie and GPS
Under 30 seconds. Biometric selfie with liveness detection and GPS coordinates. Timestamped, encrypted, and sealed instantly.
- 03
You receive certified reports
Monthly PDF and CSV exports, eIDAS 2 PAdES LTA signed, blockchain-sealed. Ready for tax authority submission.
What you get
What your practice gets
- Reports
Exportable reports
PDF and CSV formats, structured for tax authority submission. Day-by-day presence records with country, coordinates, and timestamps.
- Signatures
eIDAS 2 PAdES LTA signatures
EU-recognized qualified electronic signatures with long-term validation. Each report carries a signature that remains verifiable for decades.
- Dashboard
183-day monitoring dashboard
Real-time day counts per country per client. Track progress toward residency thresholds without manual calculations.
- Blockchain
Blockchain verification
Each record is sealed on-chain with an independent verification link. Any third party can confirm authenticity without contacting us.
- Languages
32 languages
Reports generated in the language your client's tax authority requires. From Spanish to Arabic, German to Portuguese.
- Evidence
Geolocated photo evidence
Optional timestamped photos sealed to GPS coordinates. Visual proof of presence that complements the biometric check-in data.
Use cases
The scenarios you deal with every day
- Audit defense
Tax audit defense
Present certified day-by-day records to Hacienda, HMRC, IRS, or any tax authority. Each entry independently verifiable via blockchain.
- Compliance
Beckham law compliance
Prove 183+ days of presence in Spain for 24% flat rate maintenance. Certified records that satisfy the Agencia Tributaria's requirements.
- Exit tax
Exit tax documentation
Demonstrate genuine departure from the origin country. Certified presence records in the new jurisdiction prove the move was real, not just on paper.
- Visa
Immigration and visa renewals
Prove minimum stay requirements for D7, D8, DN visas, and golden visa renewals. Day counts with certified evidence for each entry.
- Disputes
Dual residency disputes
Establish primary residence with certified presence data. When two countries both claim your client, day-by-day proof settles the question.
The accompanied license is built for advisory firms managing multiple cross-border clients.
For firms with 5 or more clients. Dedicated onboarding, priority support, and volume pricing designed for professional practices.
Personalized onboarding for your team. Priority support channel. Multi-user setup assistance. Volume pricing for 5+ client accounts. Dedicated account manager.
The numbers
The math is not subtle.
€2.74 per day per client on the PRO plan. Substantial audit exposure per case.
- Cost
€2.74/day
Cost of PRO plan per client, annual billing.
- Exposure
High
Potential audit cost per client — penalties, back taxes, fees.
- Value
3x–5x
Cheaper than the competition for equivalent certified proof.
- Time
30 sec
Average check-in time per day for each client.
FAQ
Questions tax advisors ask
Can I access my clients' reports directly?
Each client owns their own data and generates their own reports from the app. They can export PDF and CSV files and share them with you directly. We are developing a dedicated advisor dashboard for firms managing multiple clients, expected later in 2026.
What legal weight do ResidenceSafe reports carry?
ResidenceSafe reports are signed with eIDAS 2 PAdES LTA qualified electronic signatures and sealed on the blockchain with independent verification links. That combination means every record was created, signed, and anchored at the exact moment of physical presence. No entry can be modified after the fact. Any tax authority, court, or third party can verify authenticity independently, without contacting us and without relying on the taxpayer's declaration. Reports serve as certified supporting documentation recognized across EU member states. They do not replace official government documents, but they are the strongest form of supplementary presence evidence currently available.
How does pricing work for multiple clients?
Each client subscribes individually through the app. The Free tier includes unlimited check-ins with no legal validity. Premium (21 check-ins/month) costs €69.99/month and PRO (daily check-ins) costs €98.99/month, with annual plans offering up to 16.6% savings. For firms managing 5 or more clients, contact us to discuss volume pricing and personalized onboarding.
Can reports be generated retroactively?
No. ResidenceSafe records are created in real time at the moment of each check-in. This is by design: the legal value of the evidence depends on the fact that each record was generated, signed, and sealed at the time of physical presence. Retroactive fabrication is technically impossible, which is what makes the proof credible.
What makes this different from asking clients to track days in a spreadsheet?
A spreadsheet is a self-declaration with no independent verification. It can be edited, backdated, or fabricated. ResidenceSafe records are biometrically verified (selfie with liveness detection), geolocated (GPS coordinates), timestamped from external NTP servers, signed with eIDAS 2 PAdES LTA electronic signatures, and sealed on the blockchain. Each record has an independent verification link. A tax authority can verify any entry without relying on the taxpayer's word.
Your clients need proof that existed before the letter arrived.
Stop reconstructing. Start certifying. Every client gets blockchain-sealed, eIDAS 2 signed presence records before anyone asks for them.
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