Countorra calculates what you'll owe as the year goes, tells you the one fix, and prepares your return. You file it.
Sample data, shown live: Tax Alarm as a paycheck arrives: the year is worked out again, a chart draws what will have been withheld by December against the year's tax, the amount owed in April is shown, and the fix: more withheld from each paycheck on line 4(c) of the W-4.
Tax Alarm finds the exact extra withholding for each paycheck, from your real salary.
Sample data, shown live: the W-4 fix: a slider for the extra amount withheld from each paycheck is moved to Tax Alarm's amount, line 4(c) of the W-4 fills in, and April's bill turns into a small refund.
Sample data, shown live: a paystub read line by line: the pay date, gross pay, and the federal and Arizona tax withheld, then the salary for the year worked out from them.
Forms read for you, and nothing used until you confirm it. Countorra prepares the return; you file it.
Sample data, shown live: a W-2 read box by box: the employer, wages, federal tax withheld, state wages and state tax, each with its box, then confirmed.
Sample data, shown live: the 2026 return calculated from the W-2, line by line: wages, the standard deduction, taxable income, the tax and what was withheld, first federal, then Arizona.
Also in Taxes:Tax PulseTax AlarmDocument reading
Your money and your taxes, in one app.