Accrued interest looks like a technicality. In tax reporting, it’s one of the most underestimated details.
Here’s how it works: bonds pay interest on fixed coupon dates. When a bond changes hands between two of those dates, the buyer pays the seller the interest that has built up since the last coupon – on top of the price. On the next coupon date, the buyer then receives the full coupon, including the part that economically belonged to the seller.
On the account statement, all of this is just one line. For tax purposes, it raises several questions:
🔹 Is the accrued interest received by the seller taxable income – and in which year?
🔹 Can the buyer deduct the accrued interest paid, or does it become part of the acquisition cost?
🔹 How is the full coupon treated later, when part of it was already paid to the seller?
🔹 What changes when the bond is denominated in a foreign currency and exchange rates move between purchase and coupon date?
The answers depend on the client’s country of residence. In Germany, for example, accrued interest paid is treated as negative capital income in the year of payment. Other countries handle it differently – which means the same bond trade can lead to different figures in different tax reports.
This matters most at year-end: a bond bought in December with a coupon in January can shift income and deductions between two tax years.
For a bank with clients in several countries, that means: one transaction, several correct answers. A tax report has to apply the right one for each client – automatically and traceably.
How does your current setup treat accrued interest across different countries?
