Portal Fiscal
The tax department's single entry point: documents, lookups and reports behind controlled access.
- ASP.NET Core
- SQL Server
- Cloudflare Access
- JWT
Transfer pricing · Tax technology
Caio Cesar Chizolini
Where most people see an unreadable .txt, I read a trial balance.
Formerly at Deloitte and KPMG, and Executive Director at Andersen Tax. Founder of IT2TAX since 2018. São Paulo, Brazil.
One line of SPED, read
- I155Trial balance, period balance
- 1.01.01.01Account: cash
- Cost center, empty
- 15000,00Opening balance
- DDebit
- 82000,00Debits in the month
- 79500,00Credits in the month
- 17500,00Closing balance
- DDebit
Record I155 of Brazil's digital accounting bookkeeping (ECD), with fictitious amounts. To the system it is pipe-delimited text; to a reader, cash opened the month at 15,000, took in 82,000, paid out 79,500 and closed at 17,500. My work happens between those two readings.
The tax advisor
Transfer pricing
Sixteen years at Deloitte, KPMG and Andersen Tax serving multinationals in pharmaceuticals, chemicals, food and beverage, technology, media and telecommunications.
- Master file, local file and CbCR
- BEPS actions and Pillar Two
- Transfer pricing audit defense
- IP migration and brand valuation
The builder
Tax technology
At IT2TAX I write, deploy and run the tax compliance systems I used to only specify.
- NF-e, CT-e and national NFS-e straight from SEFAZ
- SPED, ECF and Block X, ICMS-ST and CAT 42
- Brazilian tax reform: IBS and CBS
- C#/.NET 9, SQL Server 2022 and Cloudflare
About
Twenty-five years in tax, all of them writing code on top of everything else
I started in transfer pricing at Deloitte in 2001 and spent thirteen years there, rising to Senior Manager. I led planning, documentation and audit defense for multinationals, and designed intercompany pricing policies tied to supply chain and logistics. Then came KPMG, where I also led tax technology and SPED projects, and Andersen Tax, as Executive Director.
In 2018 I founded IT2TAX to bring together the two halves of my education: information systems and accounting. I still advise on transfer pricing, and I run the entire tax IT function, from code to security. Since October 2026 I have been taking the MBA in Data Science, Artificial Intelligence and Analytics at USP/Esalq.
25years in tax
16years at Deloitte, KPMG and Andersen Tax
34professionals in the largest team I led
27Brazilian states covered by the automated state registration check
Career
From the pricing study to the system that produces it
-
2018 – now
IT2TAXFounder · Transfer pricing and tax technology
Transfer pricing advisory and full tax IT for companies in every sector, and for accounting firms, consultancies, audit firms and law firms.
-
2016 – 2017
Andersen TaxExecutive Director · Transfer pricing
Client development, BEPS and intercompany pricing policies for Brazilian and foreign multinationals. Team of 6.
-
2014 – 2015
KPMGSenior Manager · Transfer pricing and tax technology
Tax technology planning, compliance filings and the SPED program. Team of 16.
-
2001 – 2014
DeloitteSenior Manager · Transfer pricing
Thirteen years in transfer pricing: first and lead developer of TPS, the first Brazilian tool for standardized transfer pricing calculations, plus documentation, audit defense, brand valuation and due diligence. A team of 34 serving DTT's largest and most important transfer pricing clients.
MBA in Data Science, AI and AnalyticsUSP/Esalq · in progress, through 2028
Postgraduate degree in Data ScienceFMU University Center · 2022
AccountingPUC Minas · 2012
Bachelor's in Information SystemsUniSant'Anna · 2002
Systems
What I built and keep running
Production systems, written and operated by me. Clients stay anonymous; the engineering does not.
ColetorDFe
Collects NF-e and CT-e invoices from the SEFAZ web services with an A1 certificate and files the recipient acknowledgment.
- .NET 9
- SEFAZ web services
- A1 certificate
ImportadorFiscal
Loads tax document XMLs into SQL Server, including interstate DIFAL fields and the national NFS-e with IBS and CBS.
- .NET 9
- SQL Server 2022
- XML
Tax standing checks
Automated federal clearance certificates, Simples Nacional and SIMEI status, and state registrations across all 27 states.
- Federal Revenue API
- SEFAZ
- Windows service
EcfBlocoXWeb
Builds Block X of the ECF corporate tax return for transfer pricing and outputs the local file as a Word document.
- .NET
- ECF
- .docx
SPED ECD indicators
A model that turns the ECD trial balance into a balance sheet, income statement and 21 profitability and liquidity ratios.
- Excel
- SPED ECD
Writing
What I publish
Assunto para o café
What you need to know to hold your own on the coffee break: the day's economy, tax and business news, in a short read.
Subscribe on LinkedInPosts and articles
Transfer pricing, tax reform and tax technology, for more than 10,000 followers.
See recent posts
Awards and memberships
Where I belong
- MemberABDF · Brazilian Association of Financial Law (IFA Brazil)
- CoursesInternational Tax Law and Brazilian Tax Law
Pro bono and volunteering
What I do for free
BSGI, Soka Gakkai International Brazil
Education volunteer at the association devoted to peace, culture and education.
Public Brazilian tax manuals
I organized 650 official, public manuals and file layouts (SPED, NF-e, CT-e, NFS-e and more) into an open collection ready to be queried by AI tools.
Does your cause need a tax hand?
Non-profits and tax education projects are welcome to reach out. I review every request personally.
Get in touch
Outside the office
What keeps me busy when I'm not billing hours
Back in the classroom
MBA in Data Science, Artificial Intelligence and Analytics at USP/Esalq, 2026 to 2028.
A mainframe at home
MVS 3.8j emulated on Hercules, with real JCL and COBOL 68. The first useful program it ran was, of course, a sales tax report.
Karate-Do
Third-degree black belt, member of Shorin Kai International, which has more than 50 affiliated dojos and is presided over by Sensei Wladimir Carvalho, 9th dan.
Contact
Let's talk
Transfer pricing advisory, tax technology projects, talks and invitations.