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Finance Calc Kit
Tax

Net to Gross Calculator

Convert between net and gross amounts using tax percentage, supporting both tax-from-net and tax-from-gross calculation modes.

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%
Common rates:

Gross amount

$1,200.00

Net amount plus calculated tax

Net amount

$1,000.00

Pre-tax or after-tax base depending on mode

Tax amount

$200.00

20.00% tax on the calculation base

Amount breakdown

Gross$1,200.00
  • Net amount$1,000.0083.3%
  • Tax$200.0016.7%

How this conversion is calculated

Three steps to add tax on top of a net amount.

  1. Start with the net (pre-tax) amount

    Net amount is $1000.00 at a 20% tax rate.

  2. Calculate tax on net

    Tax=Net×r100\text{Tax} = \text{Net} \times \frac{r}{100}

    $1000.00 × 0.2000 = $200.00

  3. Add tax to get gross

    Gross=Net+Tax\text{Gross} = \text{Net} + \text{Tax}

    $1000.00 + $200.00 = $1200.00

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Converting between net and gross amounts

Net and gross amounts differ by tax. A net price excludes tax; a gross price includes it. This calculator supports both directions: adding tax on top of a net base, or extracting net and tax from a tax-inclusive gross total.

The logic mirrors value-added tax and sales tax conversions. For multi-jurisdiction GST with country presets, use the GST calculator. For income tax withholding scenarios, see the 1099 tax calculator.

Net-to-gross and gross-to-net formulas

From Net: Tax=Net×r,Gross=Net+Tax\text{From Net: } \mathrm{Tax} = \mathrm{Net} \times r, \quad \mathrm{Gross} = \mathrm{Net} + \mathrm{Tax}
From Gross: Net=Gross×(1−r),Tax=Gross×r\text{From Gross: } \mathrm{Net} = \mathrm{Gross} \times (1 - r), \quad \mathrm{Tax} = \mathrm{Gross} \times r

Here r is the tax rate as a decimal (20% = 0.20). From-net mode treats tax as calculated on the net base. From-gross mode treats tax as a percentage of the inclusive total.

Worked example

From-net mode with a $1,000 net amount at 20%: tax equals $200 and gross equals $1,200. From-gross mode with a $1,000 gross total at 20%: net equals $800 and tax equals $200. These modes use different tax bases, so they are not simple inverses of each other.

Frequently asked questions

When should I use from-net vs from-gross mode?
Use from-net when you know the pre-tax price and need to add tax for an invoice total. Use from-gross when you know the tax-inclusive total and need to split net pay from withheld tax.
Is this the same as VAT inclusive pricing?
VAT inclusive pricing typically uses tax = gross / (1 + rate) × rate. This calculator from-gross mode uses tax = gross × rate, matching payroll withholding and certain flat tax-on-gross scenarios. Choose the mode that matches your tax structure.
What if the tax rate is zero?
With a 0% rate, net and gross are equal and tax is zero regardless of mode.
Can I share my calculation?
Yes. Inputs sync to the page URL so you can copy and share the link with the same net amount, tax rate, and mode.

Resources and references

The formulas and methods in this calculator were checked against these independent sources.