For tax practices with expat clients · US · UK · Spain
Cross-border clients. Filing-ready data.
Your expat clients connect their bank, brokerage and pension accounts once. You get the balances, gains and foreign tax each form asks for, organised by account and country, so your team prepares returns instead of chasing statements.
- FBAR, Form 8938 and Schedule D data for US filers
- SA106 and SA108 inputs for UK Self Assessment
- Modelo 720 and 721 asset declarations for Spain
Shared data pack · Tax year 2025
John Alvarez
US citizen · Tax resident in Spain
Brokerage account$142,900
Checking account$18,420
Current account€36,210
Stocks & shares ISA£22,050
- FBARReady
- Form 8938Ready
- Modelo 720Ready
- Schedule DReview
Updated today · Client can revoke access anytime
Before and after
Days of back and forth, or minutes
What collecting client account data looks like today, and with Aequify.
Today
Per client, every season
- Questionnaire
- Follow-ups
- Documents
- Spreadsheet cleanup
Days of back and forth
With Aequify
Client connects once
- Connect accounts
- Data collected
- Shared with you
- Ready to prepare
Minutes, not days
01
No statements to chase
Clients connect bank, brokerage and pension accounts themselves, and reminders go out until every account is in.
02
Organised by account and country
Balances, gains, income and foreign tax paid arrive in USD, GBP or EUR, grouped the way the forms ask for them.
03
Preparing, not cleaning
Your team opens the data pack, reviews it and exports it to your own tax software.
Form by form
What arrives ready, form by form
For each form your practice prepares, Aequify organises the account data it asks for. Here is what arrives ready for US, UK and Spanish returns.
United States
IRS · FinCEN
US citizens and green-card holders, wherever they live
Key dates
- 15 April
- Form 1040 and FBAR due
- 15 June
- Automatic extension for taxpayers abroad
- 15 October
- Extended deadline for 1040 and FBAR
Supporting data Aequify organizes
- FinCEN 114 (FBAR)
- Highest balance of every foreign account
- Form 8938
- Foreign assets checked against FATCA thresholds
- Form 8949 · Sch. D
- Sales and gains from brokerage accounts
- Form 1116
- Foreign tax paid, for the foreign tax credit
- Form 8621 (PFIC)
- Foreign funds flagged for PFIC review
United Kingdom
HMRC
UK residents with income or assets abroad
Key dates
- 5 October
- Register for Self Assessment
- 31 January
- Online return and balancing payment
- 31 July
- Second payment on account
Supporting data Aequify organizes
- SA100
- Self Assessment return on worldwide income
- SA106
- Foreign income and foreign tax credit relief
- SA108
- Gains on overseas disposals
- FIG regime
- Foreign income and gains of new arrivals
- Treaty relief
- Income already taxed in the US or Spain
Spain
Agencia Tributaria
Tax residents of Spain with assets outside Spain
Key dates
- 1 Jan – 31 Mar
- Modelo 720 and 721 declarations
- Apr – 30 Jun
- IRPF campaign (Modelo 100)
Supporting data Aequify organizes
- Modelo 100
- Annual IRPF return on worldwide income
- Modelo 720
- Foreign accounts, securities and property over €50,000
- Modelo 721
- Crypto held with providers outside Spain
- Modelo 151
- Special regime for inbound workers (Beckham law)
- Double tax relief
- Foreign tax paid on US, UK and other income
30+ countries supported...
Sample data pack
See exactly what your team receives
An FBAR schedule for a sample client: every foreign account, its highest balance and year-end value, already in USD.
FBAR schedule · Tax year 2025
Sample client · US citizen, tax resident in Spain
| Account | Institution | Country | Max value (USD) | Year-end (USD) |
|---|---|---|---|---|
| Current account | [Spanish bank] | ES | $41,880 | $39,450 |
| Savings account | [Spanish bank] | ES | $12,600 | $11,940 |
| Stocks & shares ISA | [UK broker] | UK | $29,310 | $28,020 |
| Pension | [UK provider] | UK | $88,200 | $86,750 |
4 foreign accounts · aggregate max value$171,990
Get the sample data pack
An example FBAR schedule and Modelo 720 asset list, sent to your work email.
The client invite
From invite to a ready data pack in four steps
- 01Day 1
Invite a client
j.alvarez@email.comSendJ. AlvarezInvitedM. ChenPendingStep 1
Invite your clients
Send an invite link from your advisor workspace. Clients sign up in minutes on web or mobile.
- 02Minutes
Connected accounts
US · BrokerageConnectedUK · ISAConnectedES · Current acctSyncingStep 2
They connect accounts
Bank, investment, credit card and wallet accounts across 30+ countries, through read-only connections.
- 03Same day
Data pack · 2025
FBARReadyModelo 720ReadySA106ReadyStep 3
You receive the data pack
Year-end and highest balances, gains, income and foreign tax paid, grouped by account and country.
- 04Ready to export
Data pack · J. Alvarez
Ready for your review
FBAR, 8938 and Modelo 720 data complete
Exported to your tax softwareDoneStep 4
Review and prepare
Check the pack, export it to your own tax software and prepare the returns. Filing stays with you and your client, just as it works today.
Requests
Ask clients for what you still need
- You request FBAR (FY 2025)
- Shows in their next steps
- Shared with you
Status per client in your workspace
Time saved
Take hours out of data collection
See how Aequify reduces the manual work behind cross-border reporting.
- FBARFinCEN 114
What your team no longer does
Requesting a statement from every foreign bankFinding each account’s highest balance in the yearConverting every balance to USD
Arrives ready
Account list with highest and year-end values in USD
- Form 8938FATCA
What your team no longer does
Listing every specified foreign assetValuing each asset at its highest and at year endAdding up totals to check the FATCA threshold
Arrives ready
Asset list with values, ready to check against your client’s threshold
- Modelo 720Agencia Tributaria
What your team no longer does
Gathering accounts, securities and property held abroadSorting assets into the three Modelo 720 categoriesPulling year-end and fourth-quarter average balances
Arrives ready
Assets grouped by category with year-end and Q4 average balances
How a cross-border tax firm transformed data collection
A CPA firm serving U.S. expats in Spain moved client onboarding to Aequify. Before, collecting complete client information took 39 days, and gathering data took up to 70% of the time on each return.
“This season felt much more under control. We weren’t rushing, and we were able to ensure that the client experience remained calm and well managed.”
See it with your own client data
The results
183 clients · Feb to Jun 2026
79%
less time collecting client data
39 days8 days
95%+
less admin for FBAR, Form 8938 and Modelo 720
11 hours25 min
20%
higher prospect conversion
From a simpler onboarding
What changed
- A questionnaire pre-populated about 88% of client information
- Document uploads filled in the matching fields
- New information updated the client’s profile automatically
Work with advice firms
Get clients referred by advice firms
Advice firms on Aequify serve expat clients who need tax help. They can refer a client to your practice, or add you to a joint client for the tax service. You get an email, a group chat with the client and each firm, and the account data already connected.
Referral from [Advice firm]
US · ESUS citizen in Málaga · Needs FBAR and Modelo 720
Joint client · Moving to Spain
The Alvarez household
- A[Advice firm]Investments and pensions · Main contactReplied
- Y[Your practice]US and Spanish tax returnsReplied
- L[Law firm]Residency and visasWaiting
Advisors in the marketplace are independent professionals, not Aequify representatives.
Privacy and control
Read-only connections, encryption, and consent from every client before anything is shared with your practice.
Bank Grade Security
Client data is encrypted in transit and at rest, with two-factor sign-in.
Read-only connections
Aequify can view balances and transactions. No one can move money.
Client-controlled access
Clients choose what you see, from full access to periodic snapshots, and can revoke it at any time.
SOC II Certification
Security controls reviewed by an independent auditor.
Your questions, answered
Questions tax practices ask before inviting their first client.
No. Aequify organises your clients’ account data into a data pack. You prepare the returns in your own tax software, and you or your client file them as you do today.
Yes. The data pack exports from your advisor workspace, so your team can bring the figures into the tax software you already use to prepare the returns.
Nothing is shared until your client accepts your invite and chooses what you can see, from full access to periodic snapshots. Connections are read-only, and your client can revoke access at any time.
Pricing depends on how many clients you invite and which forms you prepare. Book a 15-minute call and we will walk you through the options for your practice.
Clients can connect bank, investment, pension, credit card and wallet accounts across 30+ countries, including the United States, the United Kingdom and Spain, through read-only connections.
Make this filing season your easiest one.
Book a 15-minute call and we’ll walk you through a sample data pack built for your clients.

