Nepal's individual slab structure has shifted twice in the last five fiscal years — the 36%/39% top bands introduced in FY 2080/81, then a full reset in FY 2083/84 that doubled the 1% threshold to NPR 10 lakh, cut the top rate to 29%, and merged the single/couple tables into one. Pick a single year, or compare several with a different income for each.
See corporate tax rates by sector and estimate liability on a business's taxable profit.