source file name: incometax.C 

#include <stdio.h>

int  main()

{

long income,tax,taxamount;

//clrscr();

printf("\n enter your income");

scanf("%ld",&income);

if(income<250000)

{

printf(" you have no Tax ");

}

else

{

if(income>250000 && income<=500000)

{

taxamount=income-250000;

tax=taxamount*0.05;

}

if(income>500000 && income<=1000000)

{

taxamount=income-500000;

tax=taxamount*0.2;

}

if(income>1000000 )

{

taxamount=income-1000000;

tax=taxamount*0.3;

}

printf("\n your tax paid amount=%ld",tax);

}

//getch();

return 0;

}

output: