Rebecca Thornton Patel , CFP, MSF

Rebecca focuses almost exclusively on ESPP work inside a wealth practice that serves mid-career software engineers and data scientists. Her book is heavy on clients at companies running six-month qualified Section 423 plans with 15% discounts and lookback provisions. She spends a meaningful part of each fall modeling how much each client can redirect into ESPP contributions without triggering a Roth over-contribution in their 401(k) or pushing their emergency cushion too thin.

The case she sees most: a senior engineer contributing 5% of salary, cashing out each purchase period, and calling it a day. On a $220k base with a 15% discount and a six-month lookback, bumping to the 15% plan maximum captures roughly another $4,200 per period in guaranteed discount before any stock movement, and if the purchase-date price exceeds the offer-date price the effective return is higher still. The ordinary-income portion of the discount flows through the W-2 already. The mistake she untangles is clients who hold past the qualifying-disposition window expecting capital-gains treatment on the full gain, not realizing the ordinary-income piece is fixed at the moment of sale regardless of holding period.

She reviews content on ESPP contribution sizing, holding-period math, and the Form 3922 reporting that every ESPP participant ignores until they file.