Secure client portal
Private areas per client, documents, forms and communication. Built with Next.js + TypeScript, high performance, low operating cost.
§ Sector · Accounting · Chilean firms
Custom software for accounting firms.
Client portals, SII integration, close automation and Chile Law 21.719 compliance for accounting firms in Chile. We know the field: we already built ContabilidadVV.
§ Four areas where we deliver
Document management per client
Document upload and consultation per private area. Each client accesses only their files. Access audit trail.
WhatsApp notifications
Automatic notifications to final clients via WhatsApp when the project flow requires it. Configurable per event.
Chile Law 21.719 compliance for accounting data
ARCO workflow with identity verification, privacy policy per purpose, RAT registry and audit trail. Integrable with the client portal.
§ Public case
ContabilidadVV: client portal for accounting firm
Next.js + TypeScript portal with private client areas, document management, forms and professional branding. High performance, low operating costs. In production.
View full case →What clients say.
We wanted to modernize how we work with our clients without ending up with a Salesforce-sized system. aGo delivered a tailored portal: documents, private areas, forms. Low operating costs and direct support when needed.
01 What does Chile Law 21.719 require of an accounting firm?
Accounting firms process sensitive personal data: RUT, income, debts, family situation. Under Law 21.719 (full enforcement December 2026) they require explicit privacy policy per purpose, declared lawful basis (typically consent or contract execution), ARCO workflow with identity verification of requesters, auditable RAT registry, and if processing over 100 thousand subjects or special categories, designate DPO.
02 Does aGo integrate the portal with SII or existing accounting software?
Not by default. Custom integrations are built when the project requires them, based on agreed scope. ContabilidadVV is a client portal without direct integration to SII or to accounting software like Defontana or Nubox. If your project needs that type of integration, we quote it separately as a specific module.
03 How much does a custom portal for an accounting firm cost?
Reference value: from 80 UF for a portal with private areas, document management and forms. The final price depends on actual scope (number of roles, integrations, modules). After a 20-minute no-cost conversation we deliver a formal quote in 24 to 72 hours. For projects above 200 UF we add a budgeted proposal as pre-project.
04 Can my firm keep using its main accounting software?
Yes. The client portal is the relationship layer with the final client. The firm keeps its main accounting software as the source of truth. If the project later requires specific synchronization between the portal and another system, it's evaluated case by case.
05 Do you have public cases in the accounting sector?
Yes. ContabilidadVV.cl is a Next.js + TypeScript portal built by aGo: private client areas, document management, forms, communication. In production. Public case with testimonial from manager Victorio Riquelme. See details at /casos/contabilidadvv.
Does your firm need to modernize the client portal?
Let's talk 20 min at no cost. If custom fits, formal quote in 24-72 hours.