In New York statutory residency audits, proving you spent fewer than 183 days in the state requires meticulous documentation. The burden is on you to establish your whereabouts for every day of the year, and the DTF will challenge any gaps or inconsistencies in your records.
Why Day Counts Matter
If you maintained a permanent place of abode in New York (apartment, house, etc.), you’re taxed as a statutory resident if you spent 183 days or more in the state. Even one day over the threshold results in full-year resident taxation on your worldwide income.
The “Any Part of a Day” Rule
New York counts any part of a day as a full day of presence. This means:
- Arriving in NY at 11:59pm counts as a full day
- Leaving NY at 12:01am still counts the prior day
- Days in transit through NY count
- Days you’re physically present for any reason count (business, personal, medical, etc.)
There are limited exceptions for days spent in NY for medical treatment or military service.
What the DTF Accepts as Proof
The strongest evidence of your location includes:
Electronic Records:
- Cell phone location data: Tower pings and GPS data from your carrier
- Credit card statements: Purchases showing location and time
- EZ-Pass records: Toll records showing bridge/tunnel crossings
- Flight itineraries: Boarding passes and airline records
- Hotel receipts: Lodging outside NY
- Uber/Lyft records: Ride history showing pickup/dropoff locations
Documentary Records:
- Work calendars: Meetings, appointments, office attendance
- Medical appointments: Doctor visits outside NY
- Gym check-ins: Fitness facility attendance records
- Country club records: Golf rounds, dining, events
- Retail receipts: In-person purchases outside NY
- Parking receipts: Garage or meter receipts
Contemporaneous Logs:
- Daily diary or calendar: Handwritten or digital notes made at the time
- Travel log: Record of trips and overnight locations
- Expense reports: Business travel documentation
What Doesn’t Work
Weak or unreliable evidence includes:
- Reconstructed calendars created after the audit begins
- Self-serving statements without corroboration
- Estimates or approximations (“I was probably in Florida”)
- Incomplete records with significant gaps
Building a Defensible Day Count
The most successful day count defenses involve:
1. Multiple Sources of Evidence
Don’t rely on a single type of record. Corroborate your location using multiple sources:
- Credit card purchase in Miami at 9pm + hotel receipt = strong evidence you slept in Florida
- Cell phone ping in Texas + work email sent from Texas office = strong evidence of location
2. Contemporaneous Documentation
Records created at the time (not reconstructed later) carry more weight:
- Calendar entries made on the day of the event
- Expense reports submitted in real-time
- Social media posts with location tags from the actual date
3. Third-Party Verification
Evidence from independent sources is more credible:
- Employer records of office attendance
- Hotel receipts and loyalty program statements
- Medical provider records
- Credit card statements (harder to fabricate than personal calendars)
4. Consistency Across Sources
Your various records should tell the same story:
- If your calendar says you were in Texas on March 15, your credit cards should show Texas purchases
- If you claim 200 days outside NY, your cell phone records should corroborate this
Common Day Count Mistakes
Taxpayers often lose residency audits because they:
Undercount NY Days:
- Forget to count partial days
- Exclude days “just passing through”
- Don’t count days their spouse was in NY (in some cases)
- Miscalculate travel days
Overcount Days Outside NY:
- Claim they were out of state without documentation
- Count days they were actually in NY for part of the day
- Include days where their location can’t be verified
Fail to Document:
- Don’t keep contemporaneous records
- Rely on memory months or years later
- Can’t produce evidence for challenged days
The Audit Process
During a statutory residency audit:
- Initial request: DTF asks for your day count and supporting documentation
- Document production: You submit calendars, receipts, electronic records
- DTF analysis: Auditor reviews your evidence and identifies gaps or inconsistencies
- Follow-up requests: Auditor asks for clarification or additional proof for specific days
- Challenge: Auditor may dispute your count and propose their own day count
- Negotiation: You respond to the auditor’s challenges with additional evidence
Burden of Proof
You must prove your day count. If you claim 175 days in NY but can only document 160 days outside NY, the DTF will presume you were in NY for the undocumented days.
The 548-Day Rule
New York has a safe harbor: if you spend 548 days or fewer in NY over a consecutive 2-year period AND maintain a permanent abode outside the US, you’re not a statutory resident. This rule is helpful for taxpayers who split time between NY and a foreign country.
Proactive Day Tracking
The best defense is built before the audit begins:
- Track your location daily using a calendar or app
- Save all travel receipts and itineraries
- Keep electronic records (credit cards, cell phone, etc.)
- Document significant time outside NY with photos, receipts, etc.
Our Approach
When clients face day count challenges, we:
- Reconstruct day counts using all available electronic and documentary evidence
- Identify and fill gaps in the record
- Present evidence in a clear, organized format
- Challenge the DTF’s day count assumptions
- Negotiate over disputed days
Residency audits are won or lost on the details. If you’re facing a day count challenge, contact us to discuss your defense strategy.
