Sponsor Credit Vattax Base Tool

Description

Net before tax=gross-credit; tax base subtracts credit only when creditReducesBase, then multiplies by suppliedRate.

Advertising records distinguish billable exposure, disclosure support, cyclic reporting windows, layout insets and supplied tax bases. A code-point budget or visibility-duration share does not establish readable or legally sufficient disclosure. Nominal geometry and costs require the intended platform and reporting conventions.

Net before tax=gross-credit; tax base subtracts credit only when creditReducesBase, then multiplies by suppliedRate.

When to use this tool

Use Sponsor Credit Vattax Base when checking the stated advertising layout, exposure, boundary or cost convention.

How to use the tool and how it works

Enter grossSponsorAmount, credit, suppliedRate, creditReducesBase. Use the units and conventions below.
Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
Read taxBase, tax, netBeforeTax. Use the output convention below.

Require nonnegative gross amount/rate and credit within gross. Net before tax=gross-credit; tax base subtracts credit only when creditReducesBase, then multiplies by suppliedRate.^[1]

Input field	Meaning and units	Accepted input
grossSponsorAmount	Gross Sponsor Amount	Required. Finite number; minimum 0.
credit	Credit	Required. Finite number; minimum 0.
suppliedRate	Supplied Rate	Required. Finite number; minimum 0.
creditReducesBase	Credit Reduces Base	Required. Boolean.

Output field	Interpretation	Returned shape
taxBase	Tax Base	Required. Finite number.
tax	Tax	Required. Finite number.
netBeforeTax	Net Before Tax	Required. Finite number.

json

{
  "input": {
    "grossSponsorAmount": 100,
    "credit": 20,
    "suppliedRate": 0.2,
    "creditReducesBase": true
  },
  "output": {
    "taxBase": 80,
    "tax": 16,
    "netBeforeTax": 80
  }
}

Limitations and assumptions

The tax-base flag is an assumption, not a VAT rule, current jurisdictional rate or determination of tax liability.
Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.

Alternative or Complementary methods

Inspect actual rendered creatives and verified delivery/billing records, and consult applicable platform, advertising and tax requirements for real decisions.

References

Calculation and input contract: advertising/sponsor-credit-vattax-base — tool.io

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