What is a market-conform rate, and how do you find yours?

Ask five people what a fair family rate is and you get five answers. The Belastingdienst has a clearer test: the rate must be market-conform, or arm's-length. Here is what that means in practice.

The arm's-length test

A market-conform rate is what an independent lender would charge the same borrower under comparable conditions: amount, term, and especially security. A mortgage-secured home loan sits low, an unsecured consumer loan sits higher.

Why it matters

Charge clearly less and the forgone interest counts as a gift, with gift tax above the yearly exemption. Charge far more and the Belastingdienst rejects it as disguised income. Inside the band, everyone is fine.

Finding your band

Look at comparable products: mortgage rates for secured home loans, personal loan rates for unsecured amounts. Document why you picked the rate, and review it when conditions change.

The FLUX5 calculator shows the acceptable band per loan type, based on the Belastingdienst's own guidance. Set the rate, sign the contract, done.