What is Wheaton Precious Metals' effective tax rate?

Wheaton's consolidated effective tax rate was 13.3% in FY2025 (US$226.3M of tax on roughly US$1.70B of pre-tax earnings). In FY2024 it was 17.9%, a figure inflated by a US$114M charge from Canada's 15% global minimum tax landing on subsidiaries that previously paid close to nothing. In 2023, before Pillar Two took effect, the consolidated rate was roughly 0.3%.

What tax rate should I use when valuing a royalty or streaming company?

Not a 25-35% miner corporate rate. Consolidated effective rates across the peer group run from roughly 11% (Triple Flag, FY2025) to 21.5% (Franco-Nevada, FY2025). The Selborne model uses a single flat 15% rate for both royalty and stream cash flows as a neutral default, matching the Pillar Two global minimum floor. Where a specific asset carries a known higher cash tax, such as Triple Flag's Australian royalties, where the company assumes roughly 25%, apply that rate to that asset's cash flows in a sum-of-parts NAV.

How did Pillar Two change streaming company taxes?

The OECD's Pillar Two framework, enacted in Canada as the Global Minimum Tax Act, imposes a 15% minimum rate on large multinationals jurisdiction by jurisdiction. Streaming companies had historically routed stream income through Cayman and similar subsidiaries taxed at or near 0%. Pillar Two closed that gap: Wheaton booked a US$114M current tax charge in 2024 from the new 15% minimum applying to its formerly 0%-rate subsidiaries, and its consolidated rate jumped from roughly 0.3% in 2023 to 17.9% in 2024.

Why does the tax rate move a streamer's NAV so much?

Portfolio NAV is the present value of after-tax cash flows, so NAV scales roughly with (1 minus the tax rate). Cutting the assumed rate from 30% to 13% lifts every asset's after-tax cash flow by about 24%, and the NAV with it. Modelling a streamer at a 30-35% miner rate when its actual consolidated rate is 11-13% understates NAV by 20-30%, which is large enough to flip a cheap-looking name to expensive or the reverse.

The Streaming Tax Trap: Offshore Rates and NAV

Educational analysis for professional use. This guide is not investment advice or a recommendation to buy or sell any security, and it is not personalised.

The Trap in One Sentence

If you value a streaming company with the 25-35% corporate tax rate you would use for an operating miner, you understate its NAV by 20-30%. It is the most common mistake in royalty and streaming models built by people who normally cover producers.

The error is understandable. Mining jurisdictions do tax operators at those levels: Australia’s federal company rate is around 30%, and statutory rates of 20-25% or more are typical across the OECD. But royalty and streaming companies are not miners. They are financing businesses, and for two decades the streamers structured themselves so that stream income landed in subsidiaries taxed at or near 0%. Pillar Two has now put a 15% floor under that, but the consolidated rates still sit far below what a miner pays.

Why the Rate Swings NAV So Hard

Portfolio NAV is a sum of present values of after-tax cash flows, so the whole valuation scales with (1 − tax rate). There is no operating leverage to mute it: a royalty has almost no costs, so nearly every revenue dollar is pre-tax profit, and the tax line is the last big haircut before value.

The grid below shows the NAV understatement from modelling at a miner rate when the company’s actual rate is lower.

Actual consolidated ETR	Modelled at 25%	Modelled at 30%	Modelled at 35%
11% (TFPM, FY2025)	−16%	−21%	−27%
13% (WPM, FY2025)	−14%	−20%	−25%
15% (model default)	−12%	−18%	−24%

The 30-35% column against actual rates of 11-13% is where the historical mis-modelling sat, and where the 20-30% figure at the top of this page comes from. The error compounds quietly: every asset in the sum-of-parts is wrong by the same proportion, so nothing in the model looks broken.

The Peer Table: Who Actually Pays What

The effective tax rate, or ETR, is just the tax charge in the accounts divided by pre-tax profit. Here it is across the listed peers, from FY2023-FY2025 filings:

Company	Structure	Consolidated ETR	Fiscal year	Detail
Wheaton (WPM)	Canadian parent, formerly 0%-rate offshore subsidiaries	~0.3%	FY2023	Pre-Pillar Two baseline
Wheaton (WPM)	Same	17.9%	FY2024	$115.2M tax on $644.3M pre-tax, including the $114M GMT charge
Wheaton (WPM)	Same	13.3%	FY2025	$226.3M tax on ~$1.70B pre-tax
Triple Flag (TFPM)	Canadian parent, offshore subsidiaries	~10.9%	FY2025	$29.4M on $269.4M pre-tax
Royal Gold (RGLD)	US parent, income taxed onshore	17.8%	FY2025	Guidance range was 17-22%
Franco-Nevada (FNV)	Canadian parent, income taxed onshore	21.5%	FY2025	$303.9M on $1,416M pre-tax; royalty-dominant

The streamers (WPM, TFPM) still pay materially less than the two onshore names (RGLD, FNV), even after the global minimum tax, and nobody in the group pays anything like a 30% miner rate. Year-to-year swings are real: Wheaton went from 0.3% to 17.9% to 13.3% in three consecutive years, so a single year’s rate is a noisy input.

What Pillar Two Actually Changed

The 0% era is over, but the floor is 15%, not 30%. The OECD’s Pillar Two framework, enacted in Canada as the Global Minimum Tax Act, applies a 15% minimum rate jurisdiction by jurisdiction to large multinationals. For streamers, that hit the Cayman-style subsidiaries where stream income had accumulated almost untaxed.

Wheaton is the cleanest case study. Its consolidated rate was roughly 0.3% in 2023. In 2024 it recorded a US$114M current tax charge from Canada’s 15% global minimum tax landing on its formerly 0%-rate subsidiaries, taking the consolidated rate to 17.9%. By FY2025 it was 13.3%. The group rate straddles the 15% floor rather than sitting on it, because the floor applies country by country while the ETR you read is a blend of everything.

For modelling, the lesson cuts both ways. Anyone still using a 2-5% “offshore streamer” rate is now overstating NAV; the filings contradicted that assumption from FY2024 onwards. Anyone using a miner rate is understating it by the grid above. The post-Pillar Two reality clusters around the 15% floor.

None of it is permanent. The Canada Revenue Agency attacked Wheaton’s offshore structure directly, reassessing the 2005 to 2010 years under transfer-pricing rules and chasing more than US$200 million in tax and penalties. Wheaton settled in 2018 on terms that left the foreign income untaxed in Canada, and paid instead through a higher mark-up on the services its Canadian parent charged offshore. What a decade of audit could not do, one piece of legislation did six years later. A streamer’s tax rate is a policy variable, not a property of the business, so do not model it as fixed for twenty years.

The Asset-Level Layer: Where the Tax Actually Lands

A consolidated rate is a blend, and blends hide things. Triple Flag’s group rate was about 10.9% in FY2025, yet the company’s own guidance assumes Australian cash tax of roughly 25% on its Australian royalty interests: Fosterville, Beta Hunt, Stawell and Henty. One corner of the portfolio pays more than twice the headline rate.

Notice which assets those are. They are royalties. Triple Flag’s largest Australian position is a stream, on the Northparkes copper-gold mine, and it does not appear in that list. Tax follows the contract and the entity that holds it, not the mine’s postcode.

So the consolidated rate is a sanity check on the company-level model, nothing more. Each asset’s margin build should carry the tax its own cash flows bear. Run a 25%-taxed royalty at the group’s 11% and you overstate it by about a fifth, because you have it keeping 89 cents of every margin dollar instead of 75.

The two onshore names are the mirror image. Franco-Nevada came in at 21.5% for FY2025 and Royal Gold at 17.8%, because neither ever accumulated income in a nil-tax jurisdiction and so neither has any to be clawed back. Tax structure, not asset quality, is a large part of why two senior royalty companies can deserve different multiples on identical portfolios. It also feeds the EV/GEO accretion test: an ounce taxed near 11% is worth appreciably more than the same ounce taxed at 21%.

The Rate We Use, and Why

The Selborne model applies one flat 15% rate to both royalty and stream cash flows as a neutral default. Fifteen per cent matches the Pillar Two floor, now the binding constraint on the structures that used to pay nothing. It also sits inside the peer range, with TFPM at ~11% and WPM at 13.3% below it, RGLD at 17.8% and FNV at 21.5% above. A single rate keeps the royalty and stream worked examples comparable. Taxing stream cash flows at 3%, which plenty of older models did, stopped being defensible the moment the FY2024 filings landed.

When you move from the template to a specific company, adjust in this order:

Situation	Rate to apply
Quick screen, no company specified	15% flat (model default)
Streaming-heavy name (WPM, TFPM type)	Company’s recent consolidated ETR, sanity-checked against 15%
Onshore royalty company (FNV, RGLD type)	Recent reported rate: FNV ~21%, RGLD ~18%
Asset with disclosed local cash tax	The local rate on that asset (e.g. ~25% on Australian royalties)

Two cautions on trailing rates. Take more than one year: Wheaton’s 17.9% in FY2024 carried the first hit of the global minimum tax, and its 13.3% in FY2025 is closer to run-rate. And an effective rate is a book number, not a cheque. Cash can lag it badly, and Wheaton’s 2024 minimum-tax charge was not payable until mid-2026. Reading the tax note beats anchoring on a single print.

The full treatment of how tax feeds the NAV bridge, with the worked royalty and stream examples computed at those assumptions, is in the Royalty & Streaming Sector Primer.