Getting started
API keys, first calls, the full invoicing cycle, SDKs and webhooks.
Documentation
Guides, API reference and explainers for building on the Nordlet accounting API.
Guides
SDKs
Install and initialize the Nordlet client in nine languages.
API conventions
Request shape, auth scopes, list queries, money, errors, idempotency, rate limits.
Bank & payment imports
camt.053 statements, Stripe CSV, PSP settlement reconciliation and custom JSON feeds.
EU VAT engine
Place-of-supply resolution, OSS/IOSS returns, SME exemption and distance-sales thresholds.
Revenue recognition (IFRS 15 / ASC 606)
Deferred revenue, ratable, milestone and percent-complete schedules, refund liabilities, subscriptions.
Group consolidation
Consolidation groups, full, proportional and equity methods, currency translation, eliminations.
API reference
API reference
Interactive reference for every endpoint, generated from the OpenAPI spec.
OpenAPI spec (JSON)
The raw machine-readable spec for tooling and code generation.
Postman collection
Every endpoint, grouped by module, with bearer auth pre-wired.
Tax Guide
Countries
Country-by-country reference of corporate taxes, rates, filing forms and deadlines — with links to the underlying laws and official sources.
Corporate tax rates
The headline corporate income tax rate, country by country.
Small-business corporate tax
The reduced or start-up rate a small company pays, and how to qualify.
Dividend tax rates
What a resident shareholder pays on dividends, country by country.
VAT registration thresholds
The turnover at which a company must register for VAT, plus each country’s standard rate.
Tax analysis
Cross-border comparisons: effective rates, holding structures, thresholds.
Glossary
What Is a Balance Sheet? How to Read One, Line by Line
What a balance sheet shows, how assets, equity and liabilities fit together, and what each line means — with a worked example and the ratios that matter.