Forgot to Track Mileage?
You May Still Be Able to Recover It
If you're a freelancer, 1099 contractor, or self-employed worker who didn't consistently log business miles this year, you're not out of options. WriteOffRoad uses your existing Google Maps history to reconstruct a mileage record after the fact — so you can recover deductions you'd otherwise leave behind.
Start Rebuilding My Mileage →No tracker required. Works with existing Google Maps data.
The Problem: Most People Realize Too Late
Tax season arrives and you remember that you drove to client sites, traveled for work, and put real miles on your car — but you never kept a consistent log. You're not alone. This is one of the most common missed deductions for self-employed workers.
Forgot Entirely
You never installed a tracker and assumed you'd deal with it later. Now it's April and you have nothing to show.
Tracked, Then Stopped
You started the year with MileIQ or Everlance, but stopped logging by March. Six months of mileage is just gone.
Partial Records Only
You have some calendar entries, a few receipts, and a general memory of where you went — but no clean mileage log.
All three situations are recoverable if you have location data. And if you've used Google Maps at all, you likely have more data than you think.
What Mileage Tracking Apps Do Well — and Where They Fall Short
Live Trackers Are Built for the Future
Apps like MileIQ, Everlance, and Driversnote work well when you use them consistently from the start. They run in the background, detect drives automatically, and let you swipe to categorize each trip as business or personal.
But they all share the same limitation: they only capture trips going forward. If you missed weeks or months — or the entire year — a live tracker can't help you recover what's already gone.
The Retroactive Gap
Live trackers don't solve:
- Trips that happened before you installed the app
- Months where you forgot to open it
- A full year where no tracker was running
- Prior tax years you want to amend
This is the problem WriteOffRoad is built to solve.
What to Do If You Forgot to Track Mileage
Before giving up on the deduction, work through these steps. Many people find they have more usable records than they expected.
1. Export Your Google Maps Timeline
If you've had location history turned on, Google has been recording your movements. Go to takeout.google.com, select Location History, and export as JSON. This single file may contain an entire year of travel data.
2. Pull Your Calendar Records
Client meetings, job site visits, and conference dates all appear in your calendar. Cross-reference these with your location data to confirm business purpose for specific trips.
3. Gather Supporting Evidence
Bank statements showing gas purchases, hotel receipts, client invoices tied to travel dates, and email confirmation of appointments all strengthen a reconstructed log. You don't need every receipt — you need enough to make the log credible.
4. Separate Business from Commuting
The IRS does not allow a deduction for your regular commute to a fixed office location. Travel to client sites, temporary work locations, or locations outside your normal area is generally deductible. Review your trips with this distinction in mind.
5. Build a Usable Log
A reconstructed mileage log should include dates, origin and destination, miles driven, and business purpose for each trip. WriteOffRoad generates this automatically from your Google Timeline data — organized, dated, and ready to hand to a tax preparer.
6. Work with a Tax Professional
If you're claiming a retroactive deduction or amending a prior return, have a CPA or enrolled agent review your log. A professional can assess the strength of your records and advise on whether to file an amendment.
How WriteOffRoad Helps with Retroactive Mileage Recovery
WriteOffRoad is not a live tracker. It's a post-season reconstruction tool — built specifically for the situation you're in right now.
- Parses your Google Timeline — Upload your location history export and WriteOffRoad identifies every trip, along with dates, destinations, and distances.
- Finds potential business trips — Any trip more than 50 miles from your home address may qualify for IRS travel deductions per the 50-mile threshold. WriteOffRoad flags these for your review.
- Calculates per diem deductions — Beyond mileage, qualifying overnight trips may be eligible for IRS per diem meal and lodging deductions. WriteOffRoad calculates these using GSA rates for 8,620+ locations.
- Extracts actual miles driven — Where your Timeline includes driving data, WriteOffRoad pulls the actual miles traveled — not estimates.
- Groups multi-day trips correctly — Consecutive travel days are grouped into single business trips, with the IRS 75% partial-day rule applied automatically to first and last days.
- Lets you categorize trips — Mark each trip as business or personal. Bulk actions let you categorize entire trip groups at once.
- Exports for your tax preparer — Download your results as Excel, CSV, or PDF. Every export includes dates, destinations, mileage, per diem rates, and IRS deduction cities — everything a CPA needs.
- Covers prior years — Rate data goes back to FY2014, so you can reconstruct deductions for prior years and file amended returns.
Free to try. Upload your Timeline and preview your deductions before paying anything.
Frequently Asked Questions
Can I claim a mileage deduction if I didn't track it?
Possibly. The IRS requires contemporaneous records, but courts have allowed reconstructed mileage logs when supported by other evidence like calendar entries, client invoices, receipts, or GPS history. A reconstructed log is not the same as fabricated data — it's a good-faith effort to document actual business travel using available records. That said, consult a tax professional before claiming deductions without a proper log.
Can I rebuild a mileage log after the fact?
Yes. Retroactive mileage reconstruction is a recognized practice. You gather available evidence — Google Maps history, calendar appointments, client records, bank statements showing travel expenses — and use it to recreate a reasonable, defensible log. WriteOffRoad uses your Google Maps Timeline data to do exactly this, giving you a structured record of where you traveled and when.
What records help support a reconstructed mileage log?
The strongest supporting records include: Google Maps Timeline or location history exports, calendar entries showing client visits or job sites, client invoices tied to specific dates, bank and credit card statements for gas or tolls, hotel or accommodation receipts, and email or text confirmation of appointments. The more corroborating evidence you have, the more defensible your reconstructed log becomes.
Is WriteOffRoad a live mileage tracker?
No. WriteOffRoad is a post-season reconstruction and deduction optimization tool. It doesn't run in the background while you drive. Instead, it parses your existing Google Maps Timeline data after the fact to identify business trips, calculate IRS per diem deductions, and track mileage from your actual location history. If you want live tracking going forward, apps like MileIQ or Everlance work well alongside WriteOffRoad.
Who is WriteOffRoad best for?
WriteOffRoad is best for self-employed individuals, 1099 contractors, freelancers, and digital nomads who travel for work and use Google Maps. It's especially useful if you forgot to track mileage consistently, stopped using a tracker mid-year, or simply want to see how much you can recover before filing. It works well even if you have partial records — anything in your Google Timeline counts.
What if I only have partial mileage records?
Partial records are still useful. WriteOffRoad will find every qualifying trip in your Google Timeline, regardless of whether you were tracking with another app. You may find trips you forgot about entirely. For gaps where you have no location data, you can use other supporting records to supplement your log. Something is always better than nothing when it comes to documentation.
Start Rebuilding Your Mileage Record
Upload your Google Maps Timeline and find out how much you can recover. Free to preview — no commitment until you're ready to export.
Rebuild My Mileage Log →Also useful: Travel Tax Deductions Guide • 1099 Travel Write-Offs