Reverse Newfoundland and Labrador HST Calculator

Newfoundland and Labrador charges 15% HST, so an ordinary taxable receipt in the province reverses at 1.15. A $300.00 total contains $260.87 of goods and $39.13 of HST, all of it claimable as a single input tax credit by a registered business.

The province-specific trap is insurance. Newfoundland and Labrador levies a separate 15% retail sales tax on property and casualty insurance premiums. It is not HST. It is not claimable as an input tax credit. And because it happens to be numerically identical to the HST rate, it is remarkably easy to reverse an insurance invoice at 1.15, book the result as recoverable HST, and create an overclaim that looks perfectly consistent on its face. Insurance documents, not store receipts, are where this appears — check the tax description on the document rather than the percentage.

Newfoundland and Labrador's offshore oil and gas sector drives input tax credit claims at a scale unusual for the province's population — large capital and service invoices where the HST slice runs into six figures and the reverse calculation is a material accounting step rather than a bookkeeping formality. On a $250,000 tax-included service invoice, the 1.15 divisor separates $217391.30 of cost from $32608.70 of recoverable HST.

At the other end, exports carry nothing to reverse. Seafood and oil sold for export are zero-rated, as are basic groceries, prescription drugs, and medical devices domestically. A total made up of zero-rated supplies has no embedded tax at all, and any divisor applied to it manufactures a figure. Residential rent, health care, and educational services are exempt rather than zero-rated — a distinction that matters for the supplier's own ITC entitlement but produces the same result for anyone reversing the receipt: no tax to extract.

Newfoundland and Labrador raised its HST from 13% to 15% on July 1, 2016, the same day New Brunswick did. Receipts dated before it reverse at 1.13; anything since uses 1.15. On a $1,000.00 total the two divisors differ by roughly $15.39 of extracted tax.

Since April 2025 the Atlantic region no longer shares a single rate: Newfoundland and Labrador, New Brunswick, and Prince Edward Island sit at 15% while Nova Scotia has cut to 14%. Because HST follows the place of supply, an invoice from a Halifax supplier reverses at 1.14 even when the buyer is in St. John's.

To back out the 15% sales tax from any Newfoundland and Labrador receipt or invoice, use the standard algebraic reverse formula:

For a total of $100.00 CAD:

• Total Paid: $100.00 CAD
• Pre-Tax Base: $100.00 ÷ 1.1500 = $86.96 CAD
• Total Tax Owed: $100.00 - $86.96 = $13.04 CAD

Breakdown: HST Component (100% of tax): $13.04 CAD