
For KHT Firms · Audit Practices · Accounting Groups
ESEF, PRH iXBRL and Digital Assurance — all three Finnish regimes, one specialist partner, volume pricing, white-label delivery.
The Challenge
For Finnish audit and accounting firms managing multiple clients across ESEF and PRH iXBRL obligations.
Finnish accounting firms face three separate iXBRL regimes — ESEF for listed clients, PRH from 2027 for commercial clients, and ISAE 3000 assurance obligations — all with different taxonomies, different gateways, and overlapping deadlines in the same January-March window.
Managing that at scale — across a client portfolio of 10, 20 or 50 entities — with in-house staff who weren't hired to be iXBRL specialists is the problem most Finnish accounting practices are quietly navigating right now. The 2027 PRH mandate will make it significantly more acute.
3
Finnish regimes covered under one partnership
1
Dedicated account manager across all clients
99%
Successful first-time filings across all engagements
2027
PRH iXBRL mandate — capacity planning starts now

What We Handle For Your Firm
ESEF iXBRL — listed clients
Full ESEF tagging under the ESMA taxonomy for your Nasdaq Helsinki-listed clients. Detail + block tagging, Nasdaq CSF test validation, audit-ready mapping report. Assurance documentation for KHT and HT sign-off.
PRH iXBRL — commercial clients from 2027
Finnish SBR taxonomy tagging for your commercial clients filing with the Trade Register via ytj.fi. FAS and IFRS supported. Dry-run pre-mandate filings available now to identify readiness gaps.
Digital Assurance — ISAE 3000 support
Mapping walkthroughs, anchoring reports and tag reconciliation formatted for your audit working paper tools. Fast-track during January-March audit season.
White-Label Delivery
Every mapping report, every delivery package, every piece of documentation carries your firm's branding. XBRTags operates entirely behind the scenes as your silent specialist partner. Clients receive a complete, professional iXBRL package — from you.
Volume Pricing & Invoicing
Tiered discounts off our standard list price based on annual engagement volume. The more clients you bring, the better the rate. One consolidated invoice per month covers all client engagements in the billing period — no per-client invoicing overhead.
Exact rates confirmed on partnership call. Contact us with your expected volume.
Getting Started
01
One conversation to agree volume pricing, white-label preferences, invoicing terms and the regimes you need. Typically 30 minutes. No commitment required.
02
Upload each client's annual report via the secure portal. Flag regime, deadline and any specifics. Your account manager confirms scope within one business hour per submission.
03
Each client's validated iXBRL package arrives under your branding. Gateway-tested, revision-ready. Deliver to the client as your own work — because the quality standard is yours to own.
Partner Feedback
Sanna L.
Partner, Helsinki-based audit firm
11 listed clients
"We have eleven listed clients on Nasdaq Helsinki. Previously, iXBRL took three members of staff significant time each year. Since partnering with XBRtags, our team submits the files and XBRTags returns validated packages. It's freed up time we now use on higher-value work."
Erkki V.
Director, Tampere accounting practice
White-label delivery
"The white-label option was the deciding factor for us. Our clients receive the mapping report under our firm's name. XBRTags is essentially invisible — the quality is ours to present, the specialist work is theirs to deliver."
Minna H.
Managing Partner, Big Four-affiliated practice
12 clients, growing
"We started with two listed clients, now twelve. The consolidated monthly invoice means one line item instead of twelve. The account manager knows each client's filing history — it feels like an extension of our own team."
FAQ
Volume pricing is agreed based on the number of client engagements you expect per year. We offer tiered discounts off the standard list price. Pricing is fixed per engagement — not variable by complexity — so you can price services to clients with certainty. Contact us with your expected volume for a proposal.
Yes. The partner plan covers all three Finnish regimes — ESEF iXBRL for listed clients, PRH iXBRL for commercial clients from 2027, and Digital Assurance support for ISAE 3000 engagements. All flow through your dedicated account manager and appear on one monthly invoice.
All mapping reports and delivery documentation are formatted with your firm's branding — your logo, your cover page, your contact details. The iXBRL file itself carries no XBRTags identification. Your client receives the complete package from you. XBRTags is not named anywhere unless you specifically request it.
Adding a new client takes minutes. Submit their annual report via the secure portal, flag regime and deadline, and your account manager picks it up within one business hour. There is no separate onboarding process per client.
We recommend running dry-run PRH iXBRL filings now for clients likely to be in scope from 2027. This identifies taxonomy mapping gaps, management report structuring issues and ytj.fi portal compatibility before the mandate is live. XBRTags can assess your full client portfolio and identify which clients are in scope under the Finnish Auditing Act thresholds. Contact us to schedule a portfolio review.

Tell us how many clients, which regimes apply, and your typical deadlines. We'll confirm volume pricing and a partnership structure within one business hour.