{"uid":"cap_1ZDZkbiXRosh2N7mibLmO","slug":"dutch-statutory-interest-calculator-wettelijke-rente-f21b6247","name":"Dutch Statutory Interest Calculator (Wettelijke Rente)","description":"Dutch statutory interest calculator (wettelijke rente, art. 6:119 BW consumer; art. 6:119a BW commercial) on an unpaid amount between two dates, with the legally required yearly compounding and every rate change, period by period. Use it for invoices, debt collection and claims under Dutch law. From 2015-01-01; rates from the Staatsblad and ECB.","url":"https://opendata402.com/v1/nl/statutory-interest?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["amount","from","type"],"properties":{"to":{"type":"string","pattern":"^\\d{4}-\\d{2}-\\d{2}$","description":"End date (default today)."},"from":{"type":"string","pattern":"^\\d{4}-\\d{2}-\\d{2}$","description":"Date interest starts (day after due date), YYYY-MM-DD, >= 2015-01-01."},"type":{"enum":["consumer","commercial"],"type":"string","description":"consumer = 6:119, commercial = 6:119a."},"amount":{"type":"string","pattern":"^\\d{1,9}(\\.\\d{1,2})?$","description":"Principal in EUR."}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_el2ut6QyTDJCdrj6EkNhF","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Calculates Dutch statutory interest (wettelijke rente) on an unpaid principal amount between two dates, applying legally required yearly compounding and every official rate change under art. 6:119 BW (consumer) or art. 6:119a BW (commercial).","exampleAgentPrompt":"Calculate the Dutch statutory interest (commercial, art. 6:119a BW) on an unpaid invoice of €12,500 that has been overdue since 2021-03-15, up to today.","exampleUseCases":[{"title":"Debt collection claim calculation","prompt":"I need to send a formal demand letter for an unpaid invoice. The client owes me €8,750 — it was due on 2022-06-01. What is the total wettelijke rente (commercial) accumulated from that date until today that I can include in my claim?"},{"title":"Consumer overdue payment interest","prompt":"A tenant hasn't paid their deposit back since 2020-09-01. The amount is €2,300. Calculate the consumer statutory interest under Dutch law (art. 6:119 BW) from 2020-09-01 through 2024-12-31 so I know how much to include in my court filing."},{"title":"Legal interest breakdown for accountant","prompt":"Our accountant needs a period-by-period breakdown of the statutory interest on a €50,000 commercial debt that was outstanding from 2019-01-15 to 2023-07-01 under Dutch law — can you run the calculation with all the rate changes applied?"}],"resultDescription":"Returns the total statutory interest amount in EUR, broken down by period reflecting each official rate change, with the applicable rate per period and compounding applied annually as required by Dutch law. Covers dates from 2015-01-01 onward using rates from the Staatsblad and ECB.","failureModes":["Start date before 2015-01-01 — endpoint does not cover earlier periods","Invalid date format (not YYYY-MM-DD) returns a validation error","Amount field contains non-numeric or out-of-range value","End date earlier than start date causes an error","Invalid type value (must be 'consumer' or 'commercial')","Missing required parameters (amount, from, type) returns a 400-level error"],"whenToPreferThis":"Use this endpoint when you need a legally accurate Dutch statutory interest calculation conforming to art. 6:119 or 6:119a BW, with correct yearly compounding and every official rate change applied period by period. Ideal for debt collection letters, court claim preparations, invoice disputes, and accounting reconciliation under Dutch law. Prefer this over generic interest calculators when Dutch legal compliance is required.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-15T06:38:58.298Z","isFirstParty":false,"canonicalSlug":"dutch-statutory-interest-calculator-wettelijke-rente-f21b6247"}