3 calculators in this category
- Quarterly Estimated Tax CalculatorIRC §6654 estimated tax; Form 1040-ESIncome without withholding has to be paid for as you earn it, in four instalments, or the IRS charges interest on the…
- Home Office Deduction CalculatorIRC §280A; simplified method under Rev. Proc. 2013-13; Form 8829There are two ways to deduct a home office and they can differ by thousands of dollars. The simplified method pays $5 per…
- Business Mileage Deduction CalculatorIRS standard mileage rates (annual notice); IRC §170(i) charitable rateYou can deduct a business vehicle two ways, and you have to pick one. The standard mileage method multiplies business miles by…
Which one do you need?
- Quarterly Estimated Tax Calculator
- Size each 1040-ES instalment from projected income and test it against both IRS safe harbours: 90 percent of this year's tax or 100 percent of last year's.
- Home Office Deduction Calculator
- Compare the $5 per square foot simplified home office deduction with the regular Form 8829 allocation of actual expenses, including the business income limit.
- Business Mileage Deduction Calculator
- Value business, medical and charitable miles at the IRS standard rates, then compare the result against the actual expense method and see which is larger.
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