BMC's client area
Your team in Spain, in your language, and your file open 24/7
BMC One is the client area included in every BMC engagement. Sign in whenever you like to see where your file stands, along with your documents, invoices and taxes, in English, Spanish, French or German. Our team does the work; BMC One gives you visibility and control over it.
First 30-minute meeting free. BMC One has no separate fee.
Features
What you do in BMC One
Everything on this list works today. What depends on your engagement is shown in the table further down.
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Case files with their history
Every engagement has its own page, with its stages and a dated record of what has been done.
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Documents
Upload the documents we ask for and read the ones we prepare, all in one place.
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E-signature
Sign your engagement letter and the documents we send you with BMC Sign, with no printing or scanning.
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Identity verification
Anti-money-laundering rules require us to identify every client. You do it online, in BMC One.
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Messages to the team
Write to the team from BMC One; every query is kept on record with its answer.
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In four languages
BMC One works in English, Spanish, French and German.
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Invoicing with VeriFactu With a retainer
Issue your invoices from BMC One under VeriFactu, the Spanish Tax Agency’s verifiable invoicing system.
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Expenses read automatically With a retainer
Upload an expense invoice, BMC One reads its details and the team books it.
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Bookkeeping and ledgers With a retainer
Your books kept up to date: journal, general ledger, balance sheet and profit and loss.
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Connected bank account With a retainer
Connect your Qonto account and its transactions flow into BMC One on their own.
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Tax calendar With a retainer
The deadlines for your company or your self-employed activity, plus the returns already filed.
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API and MCP Group or subsidiary
Connect your ERP, your spreadsheets or your AI assistant to your account data, with the permissions you decide.
Who it is for
Built for people who live or invest in Spain from abroad
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Foreign companies and subsidiaries
Your Spanish company, its books, taxes and payroll, with every group company under one sign-in.
Company formation -
Self-employed and digital nomads
Your visa, your registration, your self-employed retainer, and your invoices and expenses always in view.
Digital nomad visa -
Entrepreneurs and investors
Your SL, your investments and the tax on your Spanish income, with each transaction in its own file.
Non-resident tax -
Families moving to Spain
Residence, the Beckham regime and your first-year tax return, with the documents for each procedure in its own file.
Beckham regime
Included in every engagement
What BMC One includes with each engagement
BMC One is not billed separately: it comes with what you engage us for. Prices are starting prices, net and plus VAT; the final fee is agreed in writing before we start.
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A single procedure or matter
One-off engagement
Beckham regime from €1,200 (employee) or €2,500 (director or shareholder). Digital nomad visa from €2,200. SL incorporation from €1,500.
Plus VAT. Per person or per company.
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Ongoing advice
Self-employed or SL retainer
Self-employed from €120 a month. Small SL from €390 a month, with up to 5 payslips included.
Plus VAT. 12-month minimum.
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Several companies
Group or subsidiary
The first company, with its retainer from €390 a month. Each additional group company, €150 a month.
Plus VAT. Setting up a subsidiary is quoted separately.
Swipe the table to see all three engagements.
| Feature | One-off engagement | Self-employed or SL retainer | Group or subsidiary |
|---|---|---|---|
| Case file with stages and history | Included | Included | Included |
| Documents | Included | Included | Included |
| E-signature (BMC Sign) | Included | Included | Included |
| Identity verification | Included | Included | Included |
| Messages to the team | Included | Included | Included |
| English, Spanish, French and German | Included | Included | Included |
| Invoicing with VeriFactu | Not included | Included | Included |
| Expenses read automatically | Not included | Included | Included |
| Bookkeeping and ledgers | Not included | Included | Included |
| Connected bank account (Qonto) | Not included | Included | Included |
| Tax calendar | Not included | Included | Included |
| Every company under one sign-in | Not included | Not included | Included |
| API and MCP server | Not included | Not included | Included |
Tax calendar: for companies and self-employed professionals. Automatic bank connection works with Qonto today.
Engagement
How to engage us
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Free 30-minute meeting
Tell us about your case and we tell you whether it fits, what we would do and what it costs. By video call, in English or Spanish.
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Proposal and engagement letter
We send you the scope and the fee in writing. You sign the engagement letter with BMC Sign.
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Identity verification
You verify your identity online, as anti-money-laundering rules require.
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BMC One from day one
Sign in with your email, no password needed, and follow your file from the first day.
Connect your AI
Your data, in your own tools too
BMC One has a REST API and an MCP server. With them you connect your ERP, your spreadsheets or an MCP-compatible AI assistant to your account data: issued and received invoices, accounting ledgers, bank balances, contacts and documents.
- Permissions are granted by area, resource and action, and critical actions are granted separately.
- The MCP server connects to your account with OAuth.
- The documentation is public, with examples in curl, TypeScript and Python.
Security
How we protect your data
BMC One runs on dedicated servers in Germany, with encrypted connections, encrypted disks and a database that is not exposed to the internet. Each client sees only its own companies' data.
BMC One: frequently asked questions
Start with a 30-minute meeting
Free and with no obligation. If it fits, we send you the proposal in writing and you have BMC One from day one.