Complex topic. no one talks about excess taxation on the South.
“The American Civil War was a complex conflict with many factors contributing to its outbreak. One of the issues that led to the war was the tariff policy of the United States1. In the 1850s, Congress increased the import tax from 15% to 37%, which was opposed by the South. The South believed that the tariff policy favored the North and that they were being unfairly taxed2. In 1860, 80% of all federal taxes were paid for by the South, but 95% of that money was spent on improving the North1. However, it is important to note that the Civil War was not fought solely over tariffs, but rather a combination of factors including slavery, states’ rights, and economic differences23.
historytoday.com
Thanks. For the link.