Nesting if statements - cannot get the nested statements to execute

I'm trying to get the below nested statements to work, but am having issues getting them to execute past the first statement. I tried nesting the statements but just the first if executes. Any feedback about formatting is greatly appreciated, I understand that there may be a more efficient way of achieving this, but I have to execute the code using nested statements.

package incometax;

import java.util.Scanner;
import java.text.DecimalFormat;

public class IncomeTax {
public static void main(String[] args) {
Scanner scnr = new Scanner(System.in);
DecimalFormat df = new DecimalFormat ("#,###,000.00");

String singleStatus = "single";
String marriedStatus = "married";
String maritalStatus = "";
double annualIncome = 0;
double taxAmount = 0;

System.out.println("Please enter your martial status: ");
maritalStatus = scnr.next();
 if (maritalStatus.compareTo(singleStatus) == 0){
     System.out.println("Please enter your annual income: ");
     annualIncome = scnr.nextDouble();

         if (annualIncome <= 30000){
         taxAmount = (annualIncome * .15);
         System.out.println("Based on annual income of "+ "$ " +        
         df.format(annualIncome) + " your tax is " + "$ " +   
         df.format(taxAmount));

             if (annualIncome > 30000){
             taxAmount = (annualIncome * .25);
             System.out.println("Based on annual income of "+ "$ " +   
             df.format(annualIncome) + 
             " your tax is " + "$ " + df.format(taxAmount));
             }
         }
         else {
              if (maritalStatus.compareTo(marriedStatus) == 0){

                 if(annualIncome <= 30000){
                 taxAmount = (annualIncome * .12);
                 System.out.println("Based on annual income of "+ "$ "  
                 +  df.format(annualIncome) + 
                 " your tax is " + "$ " + df.format(taxAmount));

                     if(annualIncome > 30000){
                     taxAmount = (annualIncome * .20);
                     System.out.println("Based on annual income of "+  
                     "$ " +  df.format(annualIncome) + 
                     " your tax is " + "$ " + df.format(taxAmount));
                     }
                  }
               }
             }
        }  
}
}