Price After Tax Calculators

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Calculating the price after tax determines the final cost of a purchase including sales tax. The formula is: Price after tax = original price × (1 + tax rate/100). To find the tax amount: Tax = original price × tax rate/100. To reverse-calculate the pre-tax price from the total: Pre-tax price = total / (1 + tax rate/100). Sales tax rates in the US vary by state, county, and city — from 0% (no sales tax states: Oregon, Montana, New Hampshire, Delaware, Alaska) to over 10% in some combined state/local jurisdictions.

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Price After Tax Formula

Price after tax = price × (1 + tax rate/100)

Example: $45.00 item with 8.5% tax: Price after tax = 45 × 1.085 = $48.83.

Tax amount = price × (tax rate/100)

Tax = 45 × 0.085 = $3.83.

Reverse Calculation (Pre-Tax Price)

If you know the total price including tax: Pre-tax price = total / (1 + tax rate/100)

Example: total = $53.00, tax rate = 6%: Pre-tax = 53/1.06 = $50.00.

US Sales Tax Rates (State-Level)

  • No sales tax: Oregon, Montana, New Hampshire, Delaware (Alaska has no state tax but local taxes allowed)
  • Low (2–4%): Colorado (2.9%), Hawaii (4%), Wyoming (4%)
  • Moderate (5–6%): Wisconsin, Maine, Vermont (~6%)
  • High (7–10%+): California base 7.25%; Tennessee 7%; Louisiana/Arkansas ~9–10% combined with local

Combined State + Local Tax

Total tax rate = state rate + county rate + city rate. Example: Los Angeles: CA state 7.25% + LA County 2.25% = 10.25% total. Use current state/county tables for exact calculations — rates change frequently.

Glossary

Sales Tax
A consumption tax collected at the final point of sale to the consumer; US state rates vary 0–7.25%; combined with local rates can exceed 10%; calculated as price × rate/100.
Price After Tax
Final cost including sales tax: price × (1 + tax rate/100); tax amount = price × rate/100; reverse calculation: pre-tax = total / (1 + rate/100).
VAT (Value-Added Tax)
A multi-stage consumption tax collected at each production step; used in most countries outside the US; built into listed prices; each stage credits tax paid on inputs.

Frequently Asked Questions

Price after tax = original price × (1 + tax rate/100). Example: $120.00 purchase with 7.5% tax: price after tax = 120 × 1.075 = $129.00. Tax amount = 120 × 0.075 = $9.00. Alternatively: calculate tax separately (original × rate/100) then add to original price. Both methods give the same result. Always convert percent to decimal first: 7.5% = 0.075.

Pre-tax price = total / (1 + tax rate/100). Example: total bill $107.00, tax rate 7%: pre-tax = 107 / 1.07 = $100.00. Tax paid = 107 − 100 = $7.00. A common error is to subtract the tax rate percent directly from the total (subtracting 7% of $107 gives $99.51, not $100.00) — this is wrong because 7% of the total is not the same as 7% of the pre-tax amount. Always divide by (1 + rate) to correctly reverse-calculate.

Five states have no state-level sales tax: Oregon, Montana, New Hampshire, Delaware, and Alaska. Alaska has no state sales tax but allows local governments to impose their own, so some Alaskan municipalities do have local sales tax. New Hampshire taxes restaurant meals and hotel rooms but not general merchandise. These states typically rely more on income tax or property tax for revenue. If you live in or travel to these states, you pay no sales tax on most purchases (with some exceptions for specific items like prepared food in some jurisdictions).

Sales tax (US system) is applied only at the final point of sale to the consumer; businesses do not pay sales tax on inputs they resell. It is collected by the retailer and remitted to the government. VAT (value-added tax, used in most of the world) is collected at each stage of production — raw material, manufacturer, wholesaler, retailer — with each business crediting the VAT already paid on inputs. VAT is built into prices; sales tax is added at checkout. Both achieve similar revenue but VAT has less tax evasion risk since each stage has an incentive to verify the prior stage's VAT payment.