Form 3853 — client moved to CA mid-year, how do the coverage months allocate?
client moved from Texas to California on July 15 2025. CA resident for the second half. single, no dependents.
CA individual mandate (SB 78, R&TC §61000) requires full-year CA residents to maintain MEC. for part-year residents... does the mandate apply only to months they were CA residents?
my read: Form 3853 coverage reporting is for the MONTHS they were CA resident. so if they had MEC July-Dec in CA they're fine. what they had in Texas Jan-Jun is irrelevant for 3853.
but Form 540NR part-year logic for the penalty calculation is messy. anyone handled this recently?
2 replies
correct — 3853 only applies to months they were CA resident. Jan-Jun TX months are outside CA's jurisdiction. the penalty (if applicable) is prorated to CA resident months only.
540NR workflow: report only the CA-period income, compute penalty on 3853 for CA-period months uncovered, flow penalty to 540NR Line 91.
if MEC existed the full time (even the TX period) you check "full year coverage" on 3853 — CA's form accepts non-CA MEC as sufficient for CA-resident months provided it was actually in force.
ok that's clean. client had employer coverage the whole time so full year MEC checkbox applies. no penalty. saved me an hour.
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