If I contribute $5500 to a nondeductible ira account that has zero dollars in it in April 2019 for tax year 2018, then quickly convert the entire balance to a Roth a few days later, rendering the nondeductible ira account balance zero again...and I have no other nondeductible money in any ira account, is that 5500 my “basis” when I file despite fact I zeroed out the non deductible amount right away?
