What is a B2B ecosystem?
Business apps that belong to one platform and share the account and the data, instead of being wired together through paid integrations.
Puerto Rico · State + Hacienda + IVU
Business software for Puerto Rico, from the Registry of Corporations to every monthly IVU return.
Puerto Rico runs on the US dollar and federal rules, yet keeps its own tax system: companies register with the Department of State, the Puerto Rico Treasury (Hacienda) handles IVU and returns through SURI, and every municipality levies its own business license. The 4b2b ecosystem offers general tools for PDF invoicing, bookkeeping, people records and contracts. You or your CPA file in SURI; the products do not connect to SURI, the Department of State or Hacienda.
Explore incorporation in PR →Illustrative overview (not measured data)4B2B · LEDGER VIEW
3
Clusters
12
Topics
USD
Currency
InvoicingBookkeepingPeopleContracts
Illustrative trend (not measured data)
Currency
USD
IVU
10.5% + 1%
Registry
Dept. of State
Tax agency
Hacienda / SURI
Start with the services you can use today
Subscribe online to the first applications of the 4b2b ecosystem, then add more modules to the same account whenever you need them.
Invoicing
Issue and manage invoices online, with plans that start with a free trial period.
from $1 /month
Hosting
cPanel hosting, VPS, dedicated and GPU servers on fast NVMe storage.
from $5.50 /month
Notifications
Send SMS, e-mail and WhatsApp notifications to your customers from one place.
from $55 /month
Why the Island is different
Dollar and federal framework, with a tax system of its own.
Puerto Rico is neither a US state nor a foreign country: it layers federal obligations over a local sales tax, municipal levies and its own social insurance programs. These are the axes your software has to reflect.
DOS-RCDepartment of StateCorporations and LLCs register with the Department of State Registry of Corporations and file an annual report to stay in good standing.
IVU-11.5IVU 11.5%The Sales and Use Tax combines 10.5% state and 1% municipal. Merchants register with Hacienda through SURI and file a monthly IVU return.
MUNI-CRIMPatente & CRIMEach municipality charges a business license (patente) based on business volume; CRIM administers personal and real property tax.
ACT-60Act 60 & federal layerThe Incentives Code (Act 60-2019) grants decrees for export services and manufacturing. Federal Social Security and Medicare apply; the IRS relationship depends on residency and income source — confirm with your CPA.
01 · INCORPORATION
Incorporating a business in Puerto Rico
From the certificate of incorporation to the first invoice with IVU: what actually matters when opening a business on the Island, and which general tools you can use from day one.
6 · Open topic →
02 · OPERATIONS
Running a business in Puerto Rico
Once the doors are open, the work is monthly: IVU, payroll, books and collections. These are the general tools you can use.
6 · Open topic →
03 · ISLAND & BEYOND
Selling from Puerto Rico to the US and the world
The Island sits inside the US customs and monetary system, but its tax regime is its own. Selling beyond it has rules worth documenting well.
5 · Open topic →
The 4b2b ecosystem for Puerto Rico businesses
Each module is subscribed on its own domain, priced in EUR. Here is how they fit into running a company on the Island.
4buildsite.netWebsite and online-store builder with ready-made templates.4hosting.netReliable hosting and VPS infrastructure tailored for the 4b2b stack and partner deployments.4invoices.netInvoicing in 73 countries: PDF invoices, numbering, client records and payment links, with ANAF e-Factura integration in Romania.4notify.netSMS and WhatsApp notifications, with an API to send them from your own applications.4shopy.netE-commerce platform to launch and run your online shop.
Technology behind the ecosystem
REST API, Webhooks, PDF invoices, email and SMS. The ecosystem has no integration with SURI, the Department of State or Hacienda.
Data
PDF invoicesREST API
Integration
WebhooksSMSEmail
Infrastructure
Hosting in EU data centres
For CPAs, corporate lawyers and incentives advisors
Firms in Puerto Rico juggle IVU, municipal licenses, annual reports and Act 60 decrees at once, each in its own portal. The ecosystem adds general tools: PDF invoices and archive, CRM, staff records and reminders.
CPAs & bookkeepers
Each client's PDF invoices in an invoice archive and books in a financial ERP. The IVU return is prepared and filed outside the system.
Corporate lawyers
E-signed contracts and client records in a CRM. Incorporations and annual reports are handled with the Department of State.
Incentives advisors
Invoices and contracts stored per client to help gather evidence. Decree compliance is not verified by the system.
Tech agencies
PDF invoices and CRM for clients on the mainland and abroad; tax treatment is set by your CPA.
The 4b2b ecosystem
Why an ecosystem instead of separate apps
The 4b2b ecosystem is a group of business apps that share one account, one company record and one customer record. You switch on only the modules you need, and anything entered once shows up everywhere else — from invoicing through contracts to timesheets.
- One login for every module, with permissions set per role.
- Company and customer details are entered once, not six times.
- One subscription, with modules you turn on as you go.
- Local tax compliance included on every market we open.
Questions about the ecosystem
Short answers to what small companies ask most often before choosing. Each one has its own page, with worked examples and the mistakes to avoid.
What is the 4b2b ecosystem?
Invoicing, accounting, CRM, ERP, HR, projects, contracts and notifications under one account, with local compliance on each market.
How does an ecosystem cut software costs?
It removes parallel subscriptions and paid connectors: replacing six separate apps typically takes 40–60 % off the monthly bill.
What does Single Sign-On mean for a company?
One person signs in once and reaches every module; when they leave, access is revoked from a single place.
How is tax compliance handled across 70 countries?
Every market has its own e-invoicing format and channel, and the ecosystem applies them from the market you selected.
Puerto Rico partner program
CPAs, lawyers and consultants who recommend the ecosystem earn a recurring commission.
CPAs
20–30%
Recurring on every referred client.
Lawyers
10–20%
For incorporation and contract referrals.
IT partners
20–30%
When rolling out several ecosystem modules.
