A JUMO product — Agentic accounting & tax firm

La Antigestoría®

Your accountant doesn’t want you to understand this. We put it on your screen.

Accounting firm · monthly invoice

— client no. 4,812 of 6,000 —

Modelo 303 (you prepare it yourself)€90
Payroll (per employee)€12/ea
A 12-minute phone call€45
Answering one email€25
“Miscellaneous services”€120
The certificate you asked for twice€30
Why am I paying this?
Can I pay less?
SURPRISE total€310 + extras

tax engineering: not included. ever.

antigestoria — ingeniera-fiscal-ia● online

Flat fee

No extras

Payroll

Included

Recovered

+€1,240

ingeniera-fiscal-ia v1.0 — connected to your Odoo

> Your Modelo 303 is ready. VAT due: €4,210. > Invoice-by-invoice breakdown: done.

> Found €1,240 recoverable: two input VAT > amounts never deducted and a misapplied pro-rata.

> Ask me anything, right here. ↓

you@antigestoria:~$

a real chat · no minute counter · no “miscellaneous services”

Official AEAT approval

JT Digitalization Suite, by JUMO Technologies S.L., is listed in the Spanish Tax Agency’s official register of approved software for certified invoice digitalization.

Certified and approved before

AEAT

Approved certified digitalization · Spain

Verifactu

Certified invoicing systems (SIF)

TicketBAI

Certified for the Basque regional tax authorities

AT Portugal

Certified invoicing · Portuguese Tax and Customs Authority

Registro Mercantil

D2 annual accounts filing straight from the ERP

Everyone sells you an ERP.

Everyone sells you Odoo.

An Odoo with your accountant and tax advisory inside? No one.

Why it exists

We know Spanish tax and accounting inside out. And we’re tired of preparing the filings and the whole accounting workload so an accounting firm can sign it — a firm that…

Doesn’t look out for you.
Doesn’t try to reduce what you pay.
Doesn’t explain what you’re signing.
Charges you for asking — and doesn’t solve it: it just administers it.

There is no tax engineering. That’s why we built this.

Control, inside and out

Not just your company’s internal flows: the external ones too. What you pay and why. No longer a secret — a transparent truth you can question.

Your personal AI Tax Engineer

An AI tax specialist who explains every filing, every payment and every optimization option, in your language. Talk to her whenever you want, with no minute counter.

Your agentic ERP works for you

Reports, taxation and filings prepare themselves inside your Odoo. You review them, understand them and optimize them further.

And us, by your side

Meetings with the JUMO team to back you on everything accounting and tax. Real tax engineering, with a first and last name.

04 — Managed SaaS

An ERP with a team behind it.

Not software we drop at your door: a monthly subscription where everything is taken care of. Built for SMEs that want to run their business, not their ERP.

Request a demo →
Ticket-based support
SLA and hour bundles
Client portal
Backups
Monitoring
Controlled upgrades
Staging environment
Functional and technical guidance

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