> Now, the IRS knows almost everything about your finances. They get electronic data from your employers, your bank, your brokerage. Most of commerce is settled electronically. Paypal and Venmo send them your info if you receive more than $500 in a year. There is nothing to be gained by randomly auditing the average family if the numbers on their report match what the IRS knows. The IRS can zero in on specific activities, such as people claiming unusual business deductions. But they no longer need to routinely audit most of us, and they don't need funding to that effect.

I think that this is a solid argument for why the government should be reducing filing burdens. If they already have the vast bulk of what is needed, and they're able to rely on that to audit people in case of discrepancies, they also should allow people to file more easily (or not file at all) using that information. Many other countries, including the UK where I currently live have a system wherein the most common kinds of employment don't require filing at all. The US could become one of them if it really wanted to.