Ifta fuel tax return filing

Skill x3fleetsafety/skills/skills/ifta-fuel-tax-return-filing

Open-source Agent Skills for DOT / FMCSA compliance. Drop in any AI coding agent (Claude Code, Cursor, Cowork) so it knows trucking regulations like a fleet safety pro.

Install

npx -y skills add x3fleetsafety/skills --skill ifta-fuel-tax-return-filing

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Use this skill to file your IFTA quarterly fuel tax return. Covers filing windows, calculation, payment, and refund situations.

SKILL.md

3.0 KB, 690 tokens by cl100k_base, as published. Nobody here has run it

IFTA Quarterly Return Filing

IFTA quarterly returns are due 30 days after the end of each quarter. Q1 due April 30, Q2 due July 31, Q3 due October 31, Q4 due January 31 of following year.

Quarterly cycle

Q1 (Jan-Mar) — due April 30
Q2 (Apr-Jun) — due July 31
Q3 (Jul-Sep) — due October 31
Q4 (Oct-Dec) — due January 31 of next year

What's in the return

Total miles driven during the quarter
State-by-state miles
Total fuel purchased
State-by-state fuel purchases
Calculation of taxes owed/refund per state
Net tax due or refund

Calculation per state

For each state:

(Miles driven in state ÷ Total miles) × Total fuel purchased = "Fuel allocated to state"
Fuel allocated × State tax rate = Tax obligation
Less: Fuel purchased in state (already paid tax)
Net = Refund (if you bought more than you used) or Tax due (if you bought less than you used)

Total tax due

Sum of state-by-state tax obligations
Plus state administrative fees (varies)
Paid to base state; base state distributes to other states

Refunds

If you bought more fuel in some states than miles driven (uncommon)
Some states delay refund until annual reconciliation
Some carriers prefer to leave credit on file rather than refund

Late filing consequences

$50 penalty + 1% per month interest (typical)
Some states impose harsher penalties for repeated late filing
May trigger audit selection
May trigger registration suspension (rare)

Common errors

Miles not added across quarters (Q1 + Q2 should equal H1 total)
Fuel receipts duplicated
State allocations wrong (rounding errors)
Fuel taxes not paid in state where purchased

Compass IFTA module

Auto-generates quarterly IFTA returns from fuel + miles data
Pre-fills the base state's IFTA form (electronic submission)
Calculates refunds vs taxes due
Quarterly review report shows variances + adjustments before submission

CFR citations

IFTA Procedures Manual

How Compass surfaces this

Searchable in Compass Ask. Runs against carrier fleet data when invoked from the relevant tracker. Read-only; no actions without explicit user approval.

Built by X3 Compass

The AI-powered DOT compliance platform for fleets 1–100 power units. Try a 7-day free trial — no credit card required — at https://x3compass.com/?utm_source=skill&utm_medium=github&utm_campaign=ifta-fuel-tax-return-filing

X3 Compass turns these skills into a complete operational platform: driver qualification files, drug & alcohol consortium, MVR pulls, hours-of-service tracking, hazmat shipping, IFTA filing, FMCSA audit prep, and DataQ dispute drafting — all CFR-cited, all in one place.

This skill is published under the X3 Compass open skills initiative. Contributions welcome at https://github.com/x3fleetsafety/skills