What changes the day you cross the border
Four things change the day you list in the US. The first is the math — international FBA fees, customs, returns logistics, currency conversion and US warehousing compound in ways that look small in spreadsheets but matter enormously in practice; a product earning a 15 percent margin in India can land at minus five in the US even before advertising begins. The second is social proof — Indian shoppers buy on price and brand familiarity, but American shoppers buy almost entirely on what other Americans have said about a product, and accumulating that proof at scale is harder, slower and more regulated than most Indian sellers expect. The third is competitive density — your category may be ten times more crowded in the US, with well-funded American brands that have entire teams dedicated to Amazon. The fourth is Q4 — almost everything in the US is concentrated into four weeks between Black Friday and December, and a single bad festive season can take a year to recover from.