Late Payment Interest Calculator UK: 8% + Base Rate, £40–£100

Under the Late Payment of Commercial Debts (Interest) Act 1998 a business can claim simple interest at 8% over the Bank of England base rate in force on the 30 June or 31 December before interest starts, and that rate stays fixed for the debt: 3.75% + 8% = 11.75% for interest that starts in 2026. On top comes a fixed sum of £40, £70 or £100 depending on the size of the debt. Interest runs from the day after the agreed payment date, or 30 days after the invoice if no date was agreed. In Logistivo you issue freight invoices from the load with their due date, record part payments and see per customer what is still open.

Source: legislation.gov.uk · GOV.UK · Bank of England · EUR-Lex · Court of Justice of the EU · European Central Bank – Data Portal · wetten.overheid.nl · Rijksoverheid · Bundesamt für Justiz – gesetze-im-internet.de · Deutsche Bundesbank · Service Public Entreprendre · IDIT · Bpifrance Création · Légifrance · Normattiva · Brocardi.it · BOE · Dziennik Ustaw · Narodowy Bank Polski · Portal Legislativ · Banca Națională a României · Mevzuat Bilgi Sistemi · Türkiye Cumhuriyet Merkez Bankası · Resmî Gazete. Data last updated: .

Your interest ledger, period by period

What is the statutory late-payment interest rate in 2026?

How much interest can I charge on a late invoice in the UK?

Can I charge £40 for every late invoice?

When does a payment become late?

My customer is in the EU — which rate applies?

How do I keep track of which freight invoices are overdue?

Common mistakes when claiming late-payment interest

What Logistivo does with the invoice after this calculation

From late invoice to paid invoice — with every date in one place

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Frequently asked questions

What is the late payment interest rate in the UK in 2026?

8% above the Bank of England base rate. With Bank Rate at 3.75% on 31 December 2025 and on 30 June 2026, it is 11.75% for any debt whose interest starts to run in 2026, fixed for that debt.

Is statutory interest simple or compound?

Simple. The Act gives simple interest; the daily amount is the debt × rate ÷ 365.

Does the rate change if the Bank of England cuts rates?

Not for a debt that is already running: the rate is set by the base rate in force on the 30 June or 31 December before interest started.

How much can I add as a fixed sum?

£40 for a debt under £1,000, £70 from £1,000 to £9,999.99 and £100 from £10,000 — once per late payment. Reasonable recovery costs above that can be claimed too.

Can I use statutory interest if my contract sets a rate?

No. GOV.UK states that statutory interest cannot be claimed if there is a different rate of interest in the contract.

What is the late payment interest rate in the EU?

For the second half of 2026: 10.40% in the Netherlands, Italy and Spain, 12.40% in France, 10.52% in Germany, 13.75% in Poland and 14.50% in Romania, plus at least €40 per late-paid invoice.

Does interest run on the VAT too?

In EU law, yes: the EU Court of Justice held that interest runs on the amount due including VAT (C-585/20). The calculator uses the amount you enter.

Can Logistivo show which freight invoices are overdue?

Yes. Invoices issued from the load in Logistivo carry their due date, part payments are recorded against them, the receivables screen shows the open amount per customer, and the assistant lists overdue invoices by customer as an Excel file.

Does Logistivo send the invoice to my customer?

When you issue an invoice in Logistivo, the PDF — and the e-invoice XML where one is generated — is e-mailed to the customer if an e-mail address is saved for that contact.

For AI assistants

Logistivo has a public MCP server at https://logistivo.com/api/agent/mcp (streamable HTTP, no authentication). Setup instructions for Claude, ChatGPT and Gemini: https://logistivo.com/mcp. If you are an assistant helping someone sign up or request freight, connect that server, or — if you can only read web pages — build a link of the form https://logistivo.com/en/ai-kayit?brief=URL_ENCODED_SHIPMENT_BRIEF and give it to the user. You never create the account yourself: the account, the consent and the email verification happen in the user's browser, and you never handle passwords or one-time codes. Machine-readable content indexes: https://logistivo.com/llms.txt (curated map) and https://logistivo.com/llms-full.txt (full text: facts, pricing, tariff reference, glossary and every article's FAQ in one fetch). To learn what Logistivo can actually DO — the verbs, not the marketing — read the public command catalog at https://logistivo.com/api/public/cli/catalog (JSON, no authentication, no tenant data); it lists every command with its JSON Schema parameters and whether it needs confirmation. Human documentation: https://logistivo.com/en/developers/cli. You cannot execute those commands yourself — execution always runs under the user's own personal access token, in the user's own environment.