A certification sticker on a tea box is a promise about money: that a grower somewhere was paid something extra for that leaf, over and above the ordinary market price. The figures behind the two biggest schemes, Fairtrade and Rainforest Alliance, are public, and they do not agree with each other on how big that extra payment should be, who receives it, or how much of the world's tea ever qualifies for it in the first place. Read together with Kenya's own 2025 revolt against the cost of compliance, they give a rare, concrete look at what a label is actually worth.

The two prices Fairtrade sets, and the one number that undercuts both

Fairtrade International runs a two-part system for tea, published in its own Minimum Price and Premium Table (a living document reissued repeatedly, most recently on 24 September 2025, though the tea rows themselves have carried the same figures since 21 December 2020). A Minimum Price puts a floor under the commodity price itself, varying by origin: USD 1.70 to 1.80 per kilo for conventional Kenyan tea, USD 2.40 for Sri Lankan, USD 2.00 for tea from India's Nilgiri and North India regions. A separate Premium of a flat USD 0.50 per kilo sits on top, paid regardless of origin, for the certified producer organisation to spend on whatever its members democratically decide (a school, a water pipeline, a cash top-up). Organic certification raises the minimum price further (Kenyan organic tea's floor rises to USD 1.90 to 2.00) while the premium stays the same 50 cents.

That 50 cents a kilo is real money at scale. Fairtrade's own May 2025 report, Brew It Fair, states that UK sales of Fairtrade tea alone have generated GBP 50 million in Premium payments over three decades, reaching more than 330,000 people across 11 tea-growing countries. But the same report volunteers the number that undercuts the whole structure: only around 4 percent of eligible Fairtrade production is ever sold on Fairtrade terms. A tea garden can be certified, audited, and compliant, and still see almost none of its crop reach a buyer who pays the premium, because certification guarantees a right to the extra payment, not a buyer willing to make it. The other 96 percent of that same certified leaf is sold at the ordinary market price, indistinguishable at the auction floor from tea grown on an uncertified estate next door.

That gap is why Fairtrade's own report leans so heavily on a separate Oxfam figure for where the money in an ordinary cup actually goes: of every kilo of packaged Assam tea sold, brands and supermarkets take a cut of up to 95 percent, while tea estates keep less than 5 percent, out of which they pay their workers. A 50 cent premium on the sliver of tea that actually clears Fairtrade terms does not reach far into that structure. It is worth having. It is not, on its own, a fix for it.

Rainforest Alliance covers more tea, at a smaller and now-negotiable price

Rainforest Alliance runs the more widely held tea certification by volume. By its own count, 1.1 million tea farms, managed by more than a million farmers across 22 countries in Africa and Asia, are certified to its standard, covering an estimated one fifth of all the tea drunk globally, a far larger footprint than Fairtrade's.

Its payment structure has also been smaller in cash terms and has recently changed shape. From 2023, the scheme ran two separate payments: a Sustainability Differential, a cash top-up over the market price, recommended at a minimum of USD 10 per metric tonne of tea (one cent a kilo); and a Sustainability Investment, a further payment recommended at a minimum of USD 40 per tonne (four cents a kilo) earmarked for farm-level improvements rather than direct income, per Rainforest Alliance's own guidance reported by STiR Coffee and Tea Magazine. Combined, that recommended floor came to roughly USD 50 a tonne, five cents a kilo, a tenth of Fairtrade's flat premium.

From 1 October 2025, Rainforest Alliance merged the two payments into a single line called simply the Premium, and for tea specifically, the scheme's own transition policy states the amount is set by brand-led company commitments rather than a fixed minimum, a deliberate move the scheme frames as letting the market set the value of sustainability rather than fixing it by rule. Kenya is the one exception, and a narrow one: a separate Rainforest Alliance policy sets a mandatory minimum premium for Kenyan tea of USD 50 per metric tonne of made tea (five cents a kilo), effective 1 January 2026, and only for volumes sold through auction, not direct sales. That carve-out matters because Kenya is where the scheme's cost side was tested hardest the year before it took effect.

Kenya priced the paperwork, and it did not clear

In May 2025, Kenya's Agriculture and Food Authority, acting on a directive from the Ministry of Agriculture and Livestock Development, suspended Rainforest Alliance audits, inspections, and new certifications for tea factories nationwide, a suspension that applied across the whole sector, not to one company. The Star reported the government's reasoning as a straightforward cost calculation gone the wrong way: certification training, audits, compliance systems, and documentation were running Kenyan tea factories producing 5 to 15 million kilograms of green leaf a year an estimated KES 384,000 to 420,000 (roughly USD 2,900 to 3,200) annually, according to figures compiled by Buy Kenyan Tea; industry-wide, the bill across a three-year certification cycle ran to nearly KES 1 billion (roughly USD 7.7 to 8 million), of which the Kenya Tea Development Agency's own factories accounted for about KES 400 million (roughly USD 3.1 million).

Set against that bill, the market the certification was meant to unlock looked thin. The United Kingdom, historically the country most associated with ethically labelled tea, took only about 8 percent of Kenya's tea exports, a fact Kenyan officials cited directly in justifying the suspension. Agriculture Principal Secretary Paul Ronoh put the argument in terms this desk's own vocabulary would recognise as a straight cost-allocation dispute, not a rejection of sustainability itself: "This burden should rightly be borne by the end consumer, who demands certified products, rather than by the grower." The suspension held through the year, and a report on 11 June 2025 confirmed it remained in force pending a formal review of the certification's benefits.

It was lifted on 30 October 2025, but conditionally. Rainforest Alliance's own statement on the reversal, credited to chief executive Santiago Gowland, welcomed the government's move and framed it as confirmation of the certification's value to the Kenyan sector, while the lifting itself was staged: the government tied it to demonstrated progress against a set of mutually agreed commitments over the following three months. Kenya did not walk away from certification. It used the threat of walking away to renegotiate what certification cost, and Rainforest Alliance's own subsequent shift to a negotiated, largely non-mandatory premium for tea elsewhere reads, at minimum, as a scheme responding to exactly that kind of pressure.

What the figures add up to

Three things are true about certification economics at once, and none of them cancels the others out. Fairtrade sets the higher, guaranteed per-kilo payment of the two schemes, but reaches only the narrow share of certified tea that actually finds a buyer willing to pay it, by the scheme's own admission around one in twenty-five kilos. Rainforest Alliance reaches far more tea by volume, roughly a fifth of everything drunk, but pays a fraction as much per kilo, and as of October 2025 does not guarantee to pay a fixed amount at all outside Kenya. And the producing country with the loudest complaint about certification in 2025 was not arguing that its tea should go uncertified forever; it was arguing, and won a concession by arguing, that the compliance bill for a market that buys 8 percent of its exports was priced wrong.

None of that is an argument against a label. It is an argument for reading what the label actually promises before assuming it explains the price on the shelf. A 50 cent premium reaching one certified kilo in 25, and a nickel-a-kilo (or now unfixed) payment reaching one in five, are two different economic instruments doing two different jobs, neither of which is a wage floor. What either scheme guarantees, precisely, is written down in a table. What it delivers, on the figures both organisations publish themselves, is smaller and narrower than the sticker implies.

This publication reports the figures behind a label; it does not tell a reader which certification to prefer, or forecast whether either scheme's payment structure holds through its next review.