How to securely collect bank data from your clients
If you manage finances for other people, getting their bank data is the part that quietly eats your week. Here is the secure, modern way to do it — no shared logins, no chasing PDF statements — and how to roll every client into one place.
The short answer: the secure way to collect bank data from clients is regulated open banking, where each client authorizes read-only access through their own bank — so you never handle a password. Give each client an isolated workspace, and their categorized transactions flow automatically into your spreadsheet, Notion, or Airtable.
The three ways people do it today (and why they hurt)
Most firms reach for one of these. Each carries a cost you feel every month.
Asking for their bank login
Never do this. Sharing online-banking credentials breaks the bank’s terms, removes the client’s consent trail, and makes you liable for data you should never hold. There is no safe version of this.
Emailing PDF statements back and forth
Slow, error-prone, and unstructured. You chase the client, wait, get the wrong account or wrong month, then re-key figures by hand — losing merchant, category, and balance detail every time.
Adding every client to one shared workspace
Convenient until one client sees another client’s transactions. There’s no real isolation, and removing a client means manually surgically deleting their data.
The secure method, step by step
This is how modern firms collect client bank data — securely, and without the chase.
Use regulated open banking, not credentials
Let each client authorize read-only access through their own bank’s consent screen via a regulated provider — Plaid (US/Canada), CDR (Australia), PSD2 (EU), or OBIE (UK). You never see, type, or store a password.
Give each client their own isolated space
Create a Client Portal per client: a separate, isolated workspace with its own bank connection and tokens. Clients only ever see their own data, and revoking one never affects another.
Send a portal invite, not a data request
Email the client a portal link. They sign in, pick their bank, approve read-only access, and they’re done — usually in under five minutes, with no software for them to learn.
Let the data flow to where you work
Their categorized transactions sync on a schedule into your Google Sheet, Excel workbook, Notion, or Airtable — one destination per client, refreshed automatically.
See and revoke at the client level
Every client rolls up into one dashboard with a per-client chip. Track who’s connected, who lapsed, and revoke access cleanly when an engagement ends.
Why this is the safe choice
- Read-only access — open banking grants transactions and balances, never the ability to move money.
- No stored credentials — BankSync never sees or holds your clients’ bank passwords.
- Per-client isolation — each client’s tokens live on their own portal; revoking one never touches another.
- A real consent trail — clients approve (and can revoke) access through their own bank, on the record.
- Regulated frameworks — Plaid, CDR (ADRBNK000246), PSD2, and OBIE, by region.
Frequently asked questions
What is the most secure way to collect bank data from clients?
Should I ever ask a client for their online banking password?
How do I keep one client’s data separate from another’s?
Do my clients need to install software or learn a new tool?
Can I collect data from clients in different countries?
Collect client bank data the secure way
Create a portal per client, send the invite, and let regulated open banking do the rest. No passwords, no PDFs, no chase.