Corporate transactions, capital markets and strategic deals.
Independent assessment and rigorous valuation of assets and businesses.
Business reinvention, sustainability and wealth management.
Corporate governance, succession and transformation
International tax planning and cross-border structuring.
Regulatory compliance and tax reporting obligations.
Special regimes for individuals and digital assets.
Tax defense and wealth taxes
Corporate immigration, ICT transfers, investor residency, digital nomad and regularisation.
Employment relations, mobility and regulatory protection.
Protection, compliance and digital resilience
Data protection, DPO and AI regulation
Company formation, contracts, shareholder agreements and corporate operations.
Contracts, dismissals, redundancies and labour court representation.
Insolvency proceedings, fresh start, micro-enterprise procedure and dissolution.
Litigation, arbitration, mediation, IP and real estate law.
Accounting, reporting and outsourced financial management.
Entity management, governance and personnel administration.
Incorporation, incentives and business acceleration.
Risk management, continuity and recovery
New guides on the latest Spanish tax and immigration developments.
Practical tools for informed decision-making.
Everything BMC One does
Each capability links to its area. Partial: part of it works; the detail is on the area page.
Try
Business Services
Tax
Legal
Security
Nothing for “”. Try “VAT”, “payroll”, or “signature”.
By area
Business ServicesOperations
Your business, up to date in one place
Our team books, calculates and submits.
Ask your assistantExamples
How many active employees do we have, and under which collective agreement and type of contract?
Add these three employees with their DNI, Social Security number and start dateThey stay in BMC One; nothing is notified to Social Security.
Tax
Every Spanish tax deadline, in plain sight
Our team prepares, files and responds.
Ask your assistantExamples
Which returns do we have this quarter and which have already been filed?
Change the tax address on the record to Calle Muestra 5, MadridIt changes the record in BMC One; nothing changes with the AEAT.
Legal
Every phase, with its status and its date
BMC lawyers handle every matter; in BMC One you see its phases and the status of each one.
Ask your assistantExamples
Which documents are still awaiting signature and who has yet to sign?
Prepare an envelope for Lucía Prueba to sign this contract on the last pageIt stays in draft. Sending it is a critical action: only with the Custom role.
Strategy
The whole transaction in one file
The analysis and the recommendation are signed by the people on the team.
Ask your assistantExamples
Find what BMC has written to us about the capital increase
Where do the tax obligations of every company in the group stand, and which one has gaps?With a group access.
Across all areas
ConnectionsAPI, MCP and webhooks
It works with any assistant that supports remote MCP connectors with OAuth sign-in; for example, Claude, which we have tested it with, or ChatGPT Business, Enterprise and Edu, as documented.
With a token, also Gemini CLI, Cursor, n8n, Make or Zapier; and, by API and signed webhooks, your own systems.
No assistant files with the AEAT, moves money or signs for you.
Only with the Custom role, chosen permission by permission.
API and MCPConnect your AIIntegrationsPublic administrations
Security
Its own scoped access, never your session
BMC One, its database and your documents are on our own dedicated servers in Europe. The database is not exposed to the internet.
No assistant files with the AEAT, moves money or signs for you.
Illustration of what you choose when you authorise an access. Fictitious data.
Returns
ReturnsForms 720, 721 and 210
Returns for investors and non-residents
Assets held abroad, crypto assets and non-resident income, at two levels: Platform and With an adviser.
BMC's client environment, included in your engagement: never sold separately.
Business ServicesOperations
Invoicing prepared for VeriFactu, expenses from a photo, a reconciled bank and payroll under your collective agreement. Our team books, calculates and submits.
Book a free meeting Sign in to BMC One
First meeting free. BMC One comes with every BMC engagement, at no separate fee.
BMC One Business Services brings your company's accounting, invoices, expenses, bank and payroll together in one place, depending on your engagement with BMC.
Invoicing is prepared for VeriFactu; expenses are read from a photo or a PDF, and each payslip is calculated by BMC One under your collective agreement and issued by a person on our employment team.
It comes with every BMC engagement at no separate fee, for the self-employed and for companies, and you start with a free first meeting.
Sources: Royal Decree 1007/2023, VeriFactu Regulation (BOE) With an adviser: BMC Business Services
Walkthrough
From the invoice to social security contributions, exactly as you will see them in BMC One.
The full screenOne card, close upThe BMC person in charge
1Invoicing
Issued, sent, viewed by your customer and paid: every invoice shows where it stands, and any payment you record goes into your books.
Close up
Tracking
BMC team
Our team sets up your issuer profile. From then on, every invoice you issue goes out numbered, booked and prepared for VeriFactu.
Depending on your engagement. The connection to VeriFactu, once your company's authorisation of representation is signed, is being fine-tuned.
2Expenses
As a photo or a PDF, from your phone or your computer. Supplier, amounts and VAT, with nothing to type.
Close up
BMC team
You confirm it and, if a detail is missing or something does not add up, our team checks it.
It is booked when you confirm it, if it is a complete invoice in your company's name and its amounts add up; if not, our team checks it. Depending on your engagement.
3Payslips
Adjusted IRPF withholding, contributions, sick leave and extra salary payments. Every payslip, as a PDF, for you and for each person on your staff.
Close up
BMC employment team
Each payslip is calculated by BMC One under your collective agreement and issued by a person on our employment team.
If your collective agreement's pay tables change, you validate them through a link and the back pay goes into the next payslip. Depending on your engagement.
4Social Security
The month's social security contributions come from the payslips, and starters and leavers go to the TGSS through the Sistema RED.
Close up
Preview, not filed: BMC files it through the Sistema RED
People8
Base€19,400.00
Employer€6,237.10
BMC employment team
Our team sends the starters and leavers you request from Employment to the TGSS. The mailbox of our Sistema RED authorisation is collected every hour, from 8:00 to 20:00.
With your company's Social Security accounts under our RED authorisation. Nothing goes to Social Security unless our team submits it.
What it solves
Six problems that come up every month, each one next to the screen that resolves it.
“I keep my receipts in a drawer until the end of the quarter.”
You take a photo, it is read automatically and, once you confirm it, it is booked.
In BMC One: Expenses
“Customers pay me late and I have to remember to chase every invoice.”
If you switch them on, anyone who has not paid receives a reminder 3, 7, 14 and 21 days after the due date.
In BMC One: Invoicing
“An employee asks me for their March payslip and it is lost somewhere in my email.”
All payslips are in BMC One with their PDF, and you send it from there.
In BMC One: Employment › Payslips
And three more
“The collective agreement changes and I do not know whether I am paying correctly.”
We read the tables in REGCON. You validate the new ones through a link and the back pay goes into the next payslip.
In BMC One: Employment › Agreement and calendar
“Every new hire means a morning of paperwork.”
You request the registration from Employment and our team sends it to the TGSS through the Sistema RED.
In BMC One: Employment › Starters and leavers
“Switching accounting systems worries me.”
Our team brings over your chart of accounts, your journal and your previous invoices in batches, with no retyping.
In BMC One: Books
A sample year
What happens every day, every month and every quarter in a company with employees.
Invoices and expensesEvery day, on issuing or confirming
PayrollEvery month, on your cut-off date
Social security contributionsEvery month, RLC and RNT
QuarterVAT and withholdings for Forms 303 and 111
We keep watch for you
Every day we sweep the national register of collective agreements and every morning we read the BOE. If your agreement publishes new tables, we write to you with the back pay so that you can decide; everything else goes to the BMC person who manages your account.Your agreement, the minimum wage and the employment BOE, every day. New tables come to you so that you can decide.
Nothing is applied on its own: a new table goes into your payroll when you validate it.
Your agreement, in the national register
Every day we sweep REGCON, the register where collective agreements are filed, including provincial and company agreements, and we read their pay tables in the official gazette. Every table is checked before it is used.
Monitored by our employment team
New tables, with their back pay
If your agreement publishes new tables, we write to you with the old table set against the new one, who is affected and the estimated back pay. You decide whether it applies and from when, and the differences go into the next payslip. Depending on your engagement.
Comes to you, by email
Minimum wage
Every year we read the SMI in the text of the royal decree in the BOE, not in the headline, and we check every agreement table against it.
Used by our employment team
Employment rules in the BOE
Every morning, Monday to Saturday, contributions, hiring, dismissal, ERTEs or working-time records: headline and impact of each provision, and full analysis of the most relevant ones. Only the state gazette.
By email, if you subscribe to the radar
Employment calendar
The national and regional public holidays of each province where you have a workplace, under “Agreement and calendar” in your portal.
You see it in your portal
Boletín de Noticias RED
Every Social Security Sistema RED bulletin, read and published section by section on our website: deadlines, files and contribution rebates.
On our website; it does not generate alerts
The new table for your agreement, with the back pay, for you to validate. And the employment BOE radar, by email, if you subscribe.
The validation that is not answered in time, after a reminder, and every table checked against the minimum wage.
Employment legislation consolidated to date, in the search tool used by our team and its agents. It does not generate any alerts.
Everything it does
210 capabilities in six areas, each on one line: who carries it out and what it depends on.
Depending on your engagementdepends on what you engagePartialpart of it works, the line says whichBeing fine-tunedbuilt, we are adjusting it
In your portal
Our team
Automatic
By API and from your assistant
In your portal
Our team
Automatic
By API
In your portal
Our team
By API and from your assistant
In your portal
Our team
Automatic
By API
In your portal
Our team
Automatic
By API
On the BMC website
In your portal
Our team
Automatic
Your assistant, connected
What BMC One holds on your staff and your accounting can be queried and loaded from the assistant you already use, through MCP or the API. Always with its own scoped access, never with your session.Your staff and your accounting, from the assistant you already use, with its own scoped access.
It works with any assistant that supports remote MCP connectors with OAuth sign-in. For example, Claude, which we have tested it with, or ChatGPT Business, Enterprise and Edu, as documented; with a token, also Gemini CLI.
No assistant files with the Tax Agency or Social Security, moves money or signs for you.
Your assistantBMC One · Nórdica Muestra, S.L.
laboral_workers_listRead · Analystlaboral_workers_upsertWrite · Operatorbooks_accounts_upsertWrite · OperatorAnalyst: read only. Operator: read and ordinary write. Custom: permission by permission; critical actions open only with it.
No assistant files with the Tax Agency or Social Security, moves money or signs for you.
It works with any assistant that supports remote MCP connectors with OAuth sign-in. For example, Claude, which we have tested it with, or ChatGPT Business, Enterprise and Edu, as documented; with a token, also Gemini CLI.
If you do not authorise personal data, it reaches the assistant masked: NIF, IBAN, phone, date of birth and address. Each connection can be switched off or revoked from Credentials. With a token, your own systems can connect too, by API.
Who it connects with
The public authorities, your bank, your payment gateway and the program you used before.
From anywhere
Depending on your engagement, BMC One calculates each payslip under your collective agreement, with income tax withholding adjusted, contributions, sick leave and extra payments, and a person on our employment team issues it. Each payslip is stored as a PDF for you and your employee. Social security contributions come from the payroll, and our team submits starters and leavers through the Sistema RED.
If you prefer to delegate it all, see our payroll services in Spain.
BMC One's invoicing is prepared for VeriFactu, the AEAT's verifiable invoicing system: each invoice gets a sequential number in its series, with no gaps, and its journal entry in your books. The connection to VeriFactu, once your company's authorisation of representation is signed, is being fine-tuned. Facturae 3.2.2, the e-invoice format for public authorities, is partial: the file is generated, not yet signed or sent.
Every day we sweep REGCON, the national register of collective agreements. If yours publishes new pay tables, we write to you with the old table next to the new one, who is affected and the estimated back pay. You decide whether it applies and from when, and the differences go into the next payroll: nothing applies without your approval.
Yes. When your company is set up, our team loads the Spanish chart of accounts (PGC) that matches its legal form: SME, abridged, standard or foundations. You do not have to give up your invoicing program: we bring over your chart of accounts, journal and earlier invoices in batches, with no retyping, and you see your books in the portal.
If you prefer us to keep it in full, see outsourced accounting in Spain with BMC.
Qonto, from your portal; Qonto and Revolut Business, with our team. With the bank connected, an invoice paid with its reference is marked as paid automatically. For any other bank, we load the statement in Norma 43 format (the Spanish bank statement format), and our team reconciles the movements with your invoices and expenses.
Yes. Depending on your engagement, you invoice from BMC One, with invoicing prepared for VeriFactu, upload expenses as a photo or a PDF and see your books in the portal, while our team books them and prepares your quarterly returns. If you have staff, your payroll and social security contributions are there too. BMC One comes with your engagement, at no separate fee.
It depends on your engagement: expenses, books, invoicing, customers and suppliers, and employment depend on what you engage BMC for. The scope is set out in writing in your engagement letter; once you sign it, we give you access to BMC One. BMC One comes with every BMC engagement, at no separate fee.
No. We use it to read your invoices, receipts and pro formas on our own servers, and every figure goes through checks. You confirm every expense; every payslip and every filing is confirmed by a person on our team. No assistant connected to BMC One files with the Tax Agency or Social Security, moves money or signs for you.
BMC
You tell us how you handle your accounts and your staff today, and we tell you, in writing, what we would do, who would handle it and what it costs. If it is a fit, you sign the engagement letter with BMC Sign and, once you have signed it, we give you access to BMC One.
You can also meet us at our offices.
Self-employed from €120 + VAT a month
Limited companies from €390 + VAT a month
Free first meeting, no commitment
First meeting free. BMC One comes with every BMC engagement, at no separate fee.