Tax collected and paid not shown in tax summary report

Hello All,
I run an ecommerce store and am a total newbie with accounting. In any case, I have created an income transaction under banking/transactions. And in the income transaction I have selected a vat tax of 25% (tax collected). Then I also created an expense transaction with a vat tax of 25% (tax paid).
I am wondering why I don't see a summary in the tax summary report?
Am I doing something wrong?

E.g. calculation for 25% tax

Revenue = 1490 sek
Tax collected = 298 sek

Expense = 100 sek
Tax paid = 20 sek

Shouldn't I see in the tax summary report

Customer VAT (Output tax) = 298 sek
Supplier VAT (Input tax) = 20 sek

VAT payable (or refundable) = 278 sek

Thanks for the help!
Vimal.