"TurboTax and similar are barely $30, for federal + state. Plus they're tax-deductible!"
I think they're only tax-deductible up to certain income limits or something. I remember seeing that section, saying "Sweet, I can deduct the cost of TurboTax on my taxes!", then having it come back with "Sorry, your income is too high to take the deduction for tax preparation services". Bummer. Why'd it even ask, since it knew my income before the deduction section?
"(In my platonic-ideal digital republic, the tax code and the tax preparation software would be one and the same, and subject to a capped complexity budget in kB.)"
The way we handle taxes is kinda absurd anyway. Almost all the input data we feed into TurboTax is information that's reported to the government anyway, and they crunch the numbers too to figure out if you should be audited (ever noticed that if you make an arithmetic mistake on your taxes, they'll just fix it for you and deduct the appropriate amount from your refund?) Since the government is doing the numbers anyway, why can't they just do our taxes for us, and either send us a bill for the difference or cut us a check for the refund.