Thresholds and marginal tax rates of the IGR tax (1936-1941)
- Tranche 1
- Tranche 2
- Minimal Tranche 3
- Maximal Tranche 3
- Minimal Tranche 4
- Maximal Tranche 4
- Minimal Tranche 5
- Maximal Tranche 5
- Minimal Tranche 6
- Maximal Tranche 6
- Minimal Tranche 7
- Maximal Tranche 7
- Minimal Tranche 8
- Maximal Tranche 8
- Minimal Tranche 9
- Maximal Tranche 9
- Tranche 10