Filing status
Single / MFJ / MFS / HoH / QW — pulled from the form header before page 1 finishes rendering.
The slowest part of a return is not the form. It is typing last year’s 1040 into this year’s software. We read page one of an expat 1040 in roughly six seconds, and the rest of the return inherits the answer.
Single / MFJ / MFS / HoH / QW — pulled from the form header before page 1 finishes rendering.
Lines 1a–9 mapped to TaxCase fields, including non-W-2 lines that often get re-typed.
Schedule 1 income (gig, alimony, FEIE) and adjustments (HSA, SEP, student loan) carried over.
Standard or itemized; if itemized, Schedule A totals captured for prefill verification.
Sch 3 nonrefundable credits and Form 1116 / 2555 detected; foreign forms unlock automatically.
Sch B (interest/dividends), Sch C (self-employment), Sch D (capital gains), Sch E (rentals/K-1s) — flagged for follow-up.
Every prefilled value is a draft. The preparer sees a green diff and clicks accept. Nothing files without a human review. Low-confidence fields are flagged so the preparer’s eyes land on the rows that need them.
Twenty-four seconds for an expat return prefill became six. Multiply by every taxpayer in the firm.