Guides on accounting automation, EU VAT and building on the Nordlet API.
ViDA changes who charges VAT on platform sales, where a seller registers, and how intra-EU invoices reach the tax authority. This is what each change means in practice and what Nordlet already calculates for you.
DAC7 asks a platform for one report a year, but the report needs data about every seller collected throughout the year. Nordlet keeps that data, applies the exclusion rules, and produces the file in the format your tax authority accepts.
Every Lithuanian company registered for VAT files an i.SAF register every month, even an empty one, and has to produce a full SAF-T audit file within about ten days when VMI asks. A missed register is a fine of up to €390 under the Code of Administrative Offences; ignoring a written VMI request can reach €6,000.
Published estimates run from three weeks to twelve months per accounting system, and the work does not carry over from one vendor to the next. Here are the figures, their sources, and the alternative.
Seven failure patterns that recur across ERP projects, the countermeasure for each, and a factual account of which of them an API-first accounting core takes off the table.
A plain list of what sits on an accountant's desk in 2026, from the general ledger to the e-filing portals, and what that means for the system you choose.
A plain definition of ERP, the modules it bundles, named examples by company size, and the signs that you need a full suite or only an API-first finance core.
Every step of IFRS 15 for a SaaS contract, shown as journal entries with real numbers, and the API calls that produce them automatically.
A plain definition of SaaS ERP, a side-by-side comparison with on-premise and hosted ERP, and the API-first subcategory that platforms build on.
A plain explanation of what makes subscription accounting different, the rules that govern it, the metrics that sit next to the books, and what a ledger has to do to keep up.
A map of VMI, Sodra, customs and the Centre of Registers from a developer's point of view, with the data fields, deadlines and endpoints behind each Lithuanian filing.
The monthly, quarterly and annual filing and payment dates a Lithuanian company has to meet in 2026, who each one applies to, and the exact day each falls on this year.
One transaction followed through every module of an ERP, with the actual journal entries, and why the general ledger is the record everything else reads.
The four kinds of free accounting software, what each one really includes, and the point at which free stops being the cheapest option.
A plain explanation of the three mechanisms a platform meets in EU VAT, the one case where the platform itself becomes the taxable seller, and how each one is recorded in the books.
The three e-invoicing models in use across the EU, a table of every member state's public-sector and business-to-business requirements as published for 2026, and what Nordlet sends in each of them today.
What the Accounting Directive actually requires, where IFRS is mandatory, how national GAAP differs by country, and a decision table for working out which set of rules applies to your company.
A cost model for ERP software in 2026, with the pricing models compared, the costs vendors do not quote, and a worked three-year total for a ten-person company under per-user and metered pricing.
A phase-by-phase answer to how long an ERP project takes, the things that make it longer, and a contrasting timeline for an accounting core you integrate through an API.
The deferred revenue balance explained case by case, with the debits and credits for each event in a subscription's life and the roll-forward that proves the number.
There is no single best product. There is a best product for your country, your VAT position, your bookkeeper and your transaction source, and this guide shows how to find it.
The five pricing models vendors use, the add-ons that are rarely in the headline price, and how to estimate your own monthly bill before you sign up.
The tools commonly used in each market, the national rules that explain why, and what a business operating across several of these countries actually needs from its accounting system.
A practitioner's guide to posting charges, fees, transfers, refunds, disputes, and reserves into a marketplace ledger that reconciles cleanly.
A reliability playbook for engineering teams: duplicate writes, idempotency reuse, webhook signatures, out-of-order events, decimal money, scopes, period locks, and recovery.
A practical guide to deciding whether marketplace transactions belong in revenue at gross or net, using IFRS 15 control analysis and professional judgment.
A practitioner's guide to separating customer cash, platform commission, seller payables, reserves, and payouts with balanced journal entries and a working order-to-payout data model.
A grounded comparison of accounting and tax platforms that handle Swedish and EU VAT through APIs, SDKs and webhooks, with clear notes on what each one actually covers.
A grounded comparison of accounting and tax platforms that handle Spanish and EU VAT through APIs, SDKs and webhooks, with clear notes on what each one actually covers.
A grounded comparison of accounting and tax platforms that handle Slovenian and EU VAT through APIs, SDKs and webhooks, with clear notes on what each one actually covers.
A grounded comparison of accounting and tax platforms that handle Slovak and EU VAT through APIs, SDKs and webhooks, with clear notes on what each one actually covers.
A grounded comparison of accounting and tax platforms that handle Romanian and EU VAT through APIs, SDKs and webhooks, with clear notes on what each one actually covers.
A grounded comparison of accounting and tax platforms that handle Portuguese and EU VAT through APIs, SDKs and webhooks, with clear notes on what each one actually covers.
A grounded comparison of accounting and tax platforms that handle Polish and EU VAT through APIs, SDKs and webhooks, with clear notes on what each one actually covers.
A grounded comparison of accounting and tax platforms that handle Maltese and EU VAT through APIs, SDKs and webhooks, with clear notes on what each one actually covers.
A grounded comparison of accounting and tax platforms that handle Luxembourg and EU VAT through APIs, SDKs and webhooks, with clear notes on what each one actually covers.
A grounded comparison of accounting and tax platforms that handle Lithuanian and EU VAT through APIs, SDKs and webhooks, with clear notes on what each one actually covers.
A grounded comparison of accounting and tax platforms that handle Latvian and EU VAT through APIs, SDKs and webhooks, with clear notes on what each one actually covers.
A grounded comparison of accounting and tax platforms that handle Italian and EU VAT through APIs, SDKs and webhooks, with clear notes on what each one actually covers.
A grounded comparison of accounting and tax platforms that handle Irish and EU VAT through APIs, SDKs and webhooks, with clear notes on what each one actually covers.
A grounded comparison of accounting and tax platforms that handle Hungarian and EU VAT through APIs, SDKs and webhooks, with clear notes on what each one actually covers.
A grounded comparison of accounting and tax platforms that handle Greek and EU VAT through APIs, SDKs and webhooks, with clear notes on what each one actually covers.
A grounded comparison of accounting and tax platforms that handle German and EU VAT through APIs, SDKs and webhooks, with clear notes on what each one actually covers.
A grounded comparison of accounting and tax platforms that handle French and EU VAT through APIs, SDKs and webhooks, with clear notes on what each one actually covers.
A grounded comparison of accounting and tax platforms that handle Finnish and EU VAT through APIs, SDKs and webhooks, with clear notes on what each one actually covers.
A grounded comparison of accounting and tax platforms that handle Estonian and EU VAT through APIs, SDKs and webhooks, with clear notes on what each one actually covers.
A grounded comparison of accounting and tax platforms that handle Danish and EU VAT through APIs, SDKs and webhooks, with clear notes on what each one actually covers.
A grounded comparison of accounting and tax platforms that handle Czech and EU VAT through APIs, SDKs and webhooks, with clear notes on what each one actually covers.
A grounded comparison of accounting and tax platforms that handle Cypriot and EU VAT through APIs, SDKs and webhooks, with clear notes on what each one actually covers.
A grounded comparison of accounting and tax platforms that handle Croatian and EU VAT through APIs, SDKs and webhooks, with clear notes on what each one actually covers.
A grounded comparison of accounting and tax platforms that handle Bulgarian and EU VAT through APIs, SDKs and webhooks, with clear notes on what each one actually covers.
A grounded comparison of accounting and tax platforms that handle Belgian and EU VAT through APIs, SDKs and webhooks, with clear notes on what each one actually covers.
A grounded comparison of accounting and tax platforms that handle Austrian and EU VAT through APIs, SDKs and webhooks, with clear notes on what each one actually covers.
A plain-English definition of the accounting API, what separates it from a tax API or a payments API, and what to check before you build against one.
Why platform teams outgrow QuickBooks, what "API, not an app" actually requires, and which alternatives fit which job.
A comparison for platform teams, based on Xero's published API limits and pricing pages and on what Nordlet actually ships.
A comparison for developers deciding between an embedded accounting API and an open-source ERP suite, based on each product's own documentation.
A practical breakdown of the features that separate a real accounting ledger for EU marketplaces from a mutable balance table with good marketing.
A scope list, a cost model with stated assumptions, and the conditions under which each answer is correct.
A double-entry ledger API records marketplace money movement as balanced, immutable journal entries so you always know who is owed what and why.
A buyer's guide for platforms and marketplaces that need real books, per-country VAT logic, and audit-ready records inside their own product.
Seven options a platform team actually considers, sorted by what each one is for, with the limits and pricing models that decide the choice.
A practical guide for developers embedding EU VAT compliance into marketplaces and platforms using a cloud accounting API.
A guide to what accounting SaaS actually is in 2026, how the three product shapes differ, and how to pick the one that matches how your business creates transactions.
A practical guide to the security and audit controls a financial API needs before Dutch businesses trust it with their books.
A practitioner's guide to building a multi-tenant accounting integration that survives OAuth, webhooks, tax rules, and reconciliation without corrupting the ledger.
A grounded comparison of accounting and tax platforms that handle Dutch and EU VAT through APIs, SDKs, and webhooks, with clear notes on what each one actually covers.
A working guide for platforms and marketplaces that need real books, correct VAT, and an audit trail that holds up years later.
A practical comparison of multi-company cloud accounting tools for EEA startups, and where API-first infrastructure like Nordlet fits in.
A grounded comparison for developers and product teams deciding between an embedded accounting API and a mid-market finance system.
A technical guide to how immutable double-entry ledger APIs work, why marketplaces need them, and what to look for when embedding accounting into your platform.
A practitioner's take on which accounting APIs actually hold up when you're moving money across borders, VAT regimes, and thousands of small transactions per day.