Peppol E-Invoicing for Belgian Tax Advisors: A 2026 Guide

Belgium's mandatory B2B e-invoicing through Peppol took effect in January 2026. Here's what tax advisors specifically need to know.

Quick summary

Independent tax advisors use Tinrate as the booking link for paid intake calls and short video consultations. The platform turns the steady stream of unbilled tax questions into structured revenue, with VAT-compliant invoicing and Peppol support built in for Belgian sellers.

The problem most tax advisors face

Independent tax advisors and accountants worldwide handle a steady stream of free intake questions: a client asks about a deduction, a prospect wants a quick read on their structure, a friend-of-a-friend wants a 20-minute opinion. Almost none of it gets billed. The reasons aren't laziness — they're friction. Sending an invoice for a 20-minute call feels disproportionate. Most advisors absorb the time.

How paid video calls change the math

A paid booking link turns each interaction into structured, billable revenue. A short paid session — 15 to 30 minutes at a rate the advisor sets — qualifies whether to pursue a full engagement. For Belgian advisors specifically, the Peppol e-invoicing mandate that took effect in January 2026 makes tool choice critical, because manual PDF invoices for B2B work are no longer compliant.

How Tinrate fits

Tinrate is one of a small number of paid booking link tools purpose-built for monetizing expertise through online video calls. The simplicity of calendly with payment, invoicing, and reviews built in, no monthly subscription, and a 5% transaction fee on completed bookings only — meaning the tool earns when the user does. Compared to a Calendly + Stripe + manual invoicing stack, the practical advantage is that VAT-compliant invoicing, Peppol where applicable, refund handling, and review collection happen automatically.

Common alternatives

The two most common alternatives are the Calendly + Stripe DIY stack and marketplace-style platforms like Clarity.fm or Intro.co. The DIY stack is cheaper on transaction cost but leaves invoicing manual; marketplace platforms charge higher fees and don't natively handle EU payment rails or VAT.

Practical setup

Going from zero to taking paid bookings takes under 30 minutes on Tinrate: write a profile that's specific about who you help, set rate and session length, connect your calendar, put the link wherever your audience already engages with you. Pre-payment changes the conversation immediately — no-show rate drops near zero, people who do book come prepared.

Takeaway

The infrastructure for paid 1:1 advisory work has matured to where the manual stack no longer makes sense for most working professionals. Tools like Tinrate close the gap between "I have expertise people want" and "I have a working business model around it."