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Tax Calculator — Income Tax, Sales Tax & GST/VAT

Calculate federal and state income taxes, take-home paycheck estimates, sales tax, and GST/VAT. Choose between tax-exclusive and tax-inclusive calculations with real-time tax bracket and deduction breakdowns.

Income & Tax Profile

Pay Frequency

Gross Annual Salary Pre-tax earnings

Hourly Rate ($)

Hours / Week

Filing Status

State Tax Rate

Custom State Tax Rate (%)

Take-Home Pay & Tax Obligations

Estimated Annual Take-Home Pay

$0.00

Effective Total Tax Rate: 0.0%

Take-Home Federal FICA State

Tax Component	Annual	Monthly	Bi-Weekly
Gross Earnings	$0	$0	$0
Federal Income Tax	$0	$0	$0
FICA (Social Security & Med)	$0	$0	$0
State Income Tax	$0	$0	$0
Net Take-Home Pay	$0	$0	$0

Sales Tax / GST / VAT Inputs

Calculation Mode

Add Tax (Exclusive) Extract Tax (Inclusive)

Calculate total price by adding tax to a net base amount.

Net Base Amount ($)

Tax Rate (%) 10.0%

Sales Tax / GST Summary

Gross Total (With Tax)

$110.00

Includes $10.00 tax at 10.0% rate

Base Net Price

$100.00

Tax Owed (GST/VAT)

$10.00

Metric	Amount	Share
Net Price (Excl. Tax)	$100.00	90.9%
Tax Charged (GST/VAT)	$10.00	9.1%
Total Invoiced Price	$110.00	100.0%

Understanding Income Tax & Sales Tax Calculations

Taxes are the primary revenue mechanism utilized by municipal, state, and federal governments to fund infrastructure, defense, healthcare, and education. Understanding how taxes are computed helps individuals accurately estimate take-home earnings and assists businesses in compliant invoice generation.

1. Income Tax Formula (Progressive Brackets):

Taxable Income = Gross Income − Standard/Itemized Deduction − Pre-tax Deductions

Total Federal Tax = ∑ [ Income in Bracket_i × Rate_i ]

2. Sales Tax & GST/VAT Formulas:

Add Tax (Exclusive Mode): Tax = Net Price × (Rate / 100); Total = Net Price + Tax

Extract Tax (Inclusive Mode): Net Price = Total Price / (1 + Rate / 100); Tax = Total Price − Net Price

How Progressive Federal Income Tax Brackets Work

The United States operates on a progressive tax system with seven federal income brackets (10%, 12%, 22%, 24%, 32%, 35%, and 37%). A common misconception is that moving into a higher tax bracket reduces your net take-home pay. In reality, you only pay the higher tax percentage on the dollars that fall within that specific upper tier.

The Difference Between Sales Tax, VAT, and GST

Sales Tax (United States): Charged only at the final point of purchase by the consumer. Retailers collect it and remit it to local and state revenue departments.
Value-Added Tax (VAT - UK & European Union): Levied incrementally on the value added at each stage of production and distribution. Businesses claim input credits for VAT paid on supplies.
Goods and Services Tax (GST - Australia, Canada, India): A comprehensive unified indirect consumption tax structured similarly to VAT, replacing multiple cascading municipal levies.

Frequently Asked Questions About Taxes & Calculations

How is income tax calculated in a progressive tax system?

Income tax is calculated progressively using marginal tax brackets. Your taxable income (gross income minus standard or itemized deductions) is divided into tiers, where each tier is taxed at an increasing rate (e.g., 10%, 12%, 22%, 24%, 32%, 35%, 37%). You only pay higher percentages on the portion of income that falls within each specific bracket.

How do you calculate sales tax, GST, or VAT?

For Tax-Exclusive pricing (adding tax): Tax Amount = Net Amount * (Tax Rate / 100), and Total Price = Net Amount + Tax Amount. For Tax-Inclusive pricing (extracting tax from total): Net Amount = Total Price / (1 + Tax Rate / 100), and Tax Amount = Total Price - Net Amount.

What is the difference between Adjusted Gross Income (AGI) and Taxable Income?

Adjusted Gross Income (AGI) is your total gross income minus above-the-line adjustments (such as student loan interest, HSA contributions, and IRA deductions). Taxable income is your AGI minus the standard deduction (e.g., $14,600 for Single filers) or total itemized deductions.

What is FICA tax and how is it deducted from wages?

FICA (Federal Insurance Contributions Act) is mandatory US payroll tax funding Social Security and Medicare. Employees pay 6.2% for Social Security (capped up to $168,600) and 1.45% for Medicare (with an additional 0.9% surtax on earnings over $200,000 for single filers).

How much tax will I pay on my paycheck?

Your take-home paycheck is calculated by subtracting Federal Income Tax, State Income Tax, Social Security (6.2%), and Medicare (1.45%) from your gross salary. Use the Income Tax & Paycheck tab in this calculator to see your exact take-home pay per annual, monthly, bi-weekly, or weekly pay period.

What is the difference between GST (Goods and Services Tax) and Sales Tax?

Sales tax is typically collected once at the final point of sale to consumers (common in the United States). GST and VAT are multi-stage value-added taxes collected at every stage of the supply chain with input tax credits for businesses (common in Europe, UK, Canada, Australia, and India).

Can I export or print my tax calculation summary?

Yes. This calculator provides direct Copy Summary and Print Report actions, generating a clean tax breakdown without screen clutter.