I'd like to make an app that lets people prove their income and put it on the Ethereum blockchain so that merchants can sell to provably low-income individuals at discount rates. The problem is I can't figure out how one could prove their income. Users could send in tax return transcripts or wage and income transcripts, but those could be easily faked. The IRS's Income Verification Express Service seems like it could work, but the service is only for creditor businesses.

Ideally a user could produce a tax transcript that's cryptographically (aka electronically) signed by the US government that proves their income. Is this possible? Does the US govt ever sign documents to be used as proof? If not is there another solution for providing income?

  • 1
    I'm voting to close this question as off-topic because this is less a legal question and more of a speculative business process question. Commented Feb 13, 2019 at 1:37
  • I'm voting to close this question as too broad. It comes close to asking "how do you figure out how much tax you owe?", which implicates the entire tax code. Also, generally taxpayers don't want to prove their income, they want to prove that they don't have income.
    – ohwilleke
    Commented Feb 13, 2019 at 1:43
  • That's fair ig. Maybe it's a better question for Reddit
    – Jonah
    Commented Feb 13, 2019 at 2:46

1 Answer 1


There's no uniform legally standardized way of proving one's income in the United States. For that matter, there's no uniform legal definition of "income", even if you limit yourself to the definitions used by government-run welfare programs (the most common split is between those that use gross income, and those that use adjusted gross income).

For your purposes, I'd recommend talking to some merchants to see if they're interested, and if so, what definition of "income" they'd look for. But honestly, I'd expect the answers to be "we're not interested" and "nothing you can cryptographically verify".

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