Why ERP Implementations Fail — and Why an API Changes the Odds
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.
Blog
Guides on accounting automation, EU VAT and building on the Nordlet API.
What Software Do Accountants Actually Use in 2026?
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.
What Is ERP Software? Meaning, Examples, and When You Actually Need One
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.
SaaS Revenue Recognition Under IFRS 15, With Worked Ledger Entries
Every step of IFRS 15 for a SaaS contract, shown as journal entries with real numbers, and the API calls that produce them automatically.
SaaS ERP: What It Is and How It Differs From Traditional ERP
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.
SaaS Accounting Explained: Revenue Recognition, Deferred Revenue, MRR
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.
Lithuania's Compliance Stack for Developers: i.SAF, FR0600, Intrastat, GPM313
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.
Business Tax Deadlines in Lithuania 2026: The Complete Calendar
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.
How ERP Systems Work: Modules, Data Flow, and the Ledger Underneath
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.
Free Accounting Software: What's Actually Free and What It Costs You Later
The four kinds of free accounting software, what each one really includes, and the point at which free stops being the cheapest option.
EU VAT for Digital Platforms: OSS, IOSS, and the Deemed-Supplier Rule Explained
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.
E-Invoicing in the EU: Country-by-Country Requirements (2026)
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.
EU Accounting Standards Explained: Directives, Local GAAP, and What Applies to You
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.
How Much Does ERP Software Cost in 2026?
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.
How Long Does ERP Implementation Take? Realistic Timelines
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.
Deferred Revenue for SaaS: A Practical Guide With Journal Entries
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.
Which Accounting Software Is Best for a Small Business in the EU?
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.
How Much Does Accounting Software Cost? Real 2026 Pricing
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.
Which Accounting Software Do Businesses Use in Germany, the UK, and the Nordics?
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.
Stripe Connect Marketplace Accounting Workflow
A practitioner's guide to posting charges, fees, transfers, refunds, disputes, and reserves into a marketplace ledger that reconciles cleanly.
Pre-Production Test Plan for an Accounting API
A reliability playbook for engineering teams: duplicate writes, idempotency reuse, webhook signatures, out-of-order events, decimal money, scopes, period locks, and recovery.
Principal vs Agent for Marketplaces: Gross or Net?
A practical guide to deciding whether marketplace transactions belong in revenue at gross or net, using IFRS 15 control analysis and professional judgment.
Marketplace Seller Subledgers: Revenue vs Payables
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.
Real-Time EU VAT for Developers Building in Sweden
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.
Real-Time EU VAT for Developers Building in Spain
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.
Real-Time EU VAT for Developers Building in Slovenia
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.
Real-Time EU VAT for Developers Building in Slovakia
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.
Real-Time EU VAT for Developers Building in Romania
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.
Real-Time EU VAT for Developers Building in Portugal
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.
Real-Time EU VAT for Developers Building in Poland
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.
Real-Time EU VAT for Developers Building in Malta
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.
Real-Time EU VAT for Developers Building in Luxembourg
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.
Real-Time EU VAT for Developers Building in Lithuania
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.
Real-Time EU VAT for Developers Building in Latvia
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.
Real-Time EU VAT for Developers Building in Italy
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.
Real-Time EU VAT for Developers Building in Ireland
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.
Real-Time EU VAT for Developers Building in Hungary
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.
Real-Time EU VAT for Developers Building in Greece
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.
Real-Time EU VAT for Developers Building in Germany
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.
Real-Time EU VAT for Developers Building in France
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.
Real-Time EU VAT for Developers Building in Finland
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.
Real-Time EU VAT for Developers Building in Estonia
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.
Real-Time EU VAT for Developers Building in Denmark
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.
Real-Time EU VAT for Developers Building in Czechia
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.
Real-Time EU VAT for Developers Building in Cyprus
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.
Real-Time EU VAT for Developers Building in Croatia
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.
Real-Time EU VAT for Developers Building in Bulgaria
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.
Real-Time EU VAT for Developers Building in Belgium
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.
Real-Time EU VAT for Developers Building in Austria
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.
What Is an Accounting API? A Plain-English Guide for Platform Builders
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.
QuickBooks Alternatives When You Need an API, Not an App
Why platform teams outgrow QuickBooks, what "API, not an app" actually requires, and which alternatives fit which job.
Nordlet vs Xero for Embedded Accounting
A comparison for platform teams, based on Xero's published API limits and pricing pages and on what Nordlet actually ships.
Nordlet vs Odoo for Platform Builders
A comparison for developers deciding between an embedded accounting API and an open-source ERP suite, based on each product's own documentation.
What Defines an Immutable Double-Entry Ledger API
A practical breakdown of the features that separate a real accounting ledger for EU marketplaces from a mutable balance table with good marketing.
Embedded Accounting: Build vs Buy for Marketplaces
A scope list, a cost model with stated assumptions, and the conditions under which each answer is correct.
What Is a Double-Entry Ledger API for Marketplaces?
A double-entry ledger API records marketplace money movement as balanced, immutable journal entries so you always know who is owed what and why.
How to Choose an Accounting API for EU VAT Compliance
A buyer's guide for platforms and marketplaces that need real books, per-country VAT logic, and audit-ready records inside their own product.
Best Accounting APIs for SaaS Platforms and Marketplaces (2026)
Seven options a platform team actually considers, sorted by what each one is for, with the limits and pricing models that decide the choice.
Automating Per-Country VAT Reporting and VIES Validation
A practical guide for developers embedding EU VAT compliance into marketplaces and platforms using a cloud accounting API.
Accounting SaaS in 2026: What It Means and How to Choose One
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.
Building an Accounting API That Survives an Audit
A practical guide to the security and audit controls a financial API needs before Dutch businesses trust it with their books.
How to Integrate a Cloud Accounting API into a SaaS Platform
A practitioner's guide to building a multi-tenant accounting integration that survives OAuth, webhooks, tax rules, and reconciliation without corrupting the ledger.
Real-Time EU VAT for Developers Building in the Netherlands
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.
Automating EU VAT Compliance With a Cloud Accounting API
A working guide for platforms and marketplaces that need real books, correct VAT, and an audit trail that holds up years later.
Cloud Accounting for EEA Startups With Multiple Entities
A practical comparison of multi-company cloud accounting tools for EEA startups, and where API-first infrastructure like Nordlet fits in.
Nordlet vs AccountsIQ for Platform Builders
A grounded comparison for developers and product teams deciding between an embedded accounting API and a mid-market finance system.
Double-Entry Ledger APIs for Marketplace Accounting
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.
Best Accounting Automation APIs for EU Marketplaces (2026)
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.