The FTA's audit focus has shifted. VAT enforcement initially concentrated on large enterprises after the tax was introduced in January 2018 — by 2025 and into 2026, small and medium enterprises are squarely in scope. Federal Decree-Law No. 16 of 2025 layered on real changes effective 1 January 2026, including a hard five-year limit on carrying forward unrecovered input VAT. Seven mistakes account for most of the exposure we see.
1. Non-Qualifying Input VAT Claims
Entertainment expenses — client dinners, staff outings, hospitality events — remain non-recoverable. Businesses regularly claim these anyway, and they're routinely disallowed on review.
2. Exempt vs. Zero-Rated Confusion
Residential property, certain financial services, and local passenger transport are exempt supplies, not zero-rated — a distinction that changes how the return should be prepared and easy to get wrong without noticing.
3. Late or Missing VAT Registration
Mandatory registration is triggered at AED 375,000 in taxable supplies over any rolling 12-month period. Fast-growing businesses routinely miss the point at which they crossed it.
4. Non-Compliant Tax Invoices
A valid UAE tax invoice needs the supplier's TRN, the customer's TRN for B2B transactions above AED 10,000, sequential invoice numbering, the supply date, item descriptions, taxable amounts, VAT rates, and VAT totals. Missing any one element makes the invoice non-compliant.
5. Incorrect Reverse Charge Application
Services imported from unregistered overseas suppliers require reverse charge VAT accounting, and 2025 amendments increased FTA scrutiny specifically in this area.
6. Deemed Supply Oversight
Personal use of business assets, gifts over AED 500, and certain related-party transfers count as deemed supplies that attract VAT — and are frequently missed entirely.
7. Inadequate Record-Keeping
UAE VAT records must be kept for a minimum of five years — fifteen years for real estate-related records. Insufficient documentation triggers penalties even when the VAT itself was calculated correctly.
The Five-Year Input VAT Recovery Limit
Under the amendments effective 1 January 2026, unrecovered input VAT can no longer be carried forward indefinitely — it's now capped at five years from the end of the tax period in which it arose. Businesses holding unclaimed input VAT from 2018–2020 have a transitional window to claim it, running until 31 December 2026, after which the right to recover it expires permanently.
What a Real Case Looks Like
A Sharjah retailer discovered three years of inconsistencies across its VAT returns, totaling AED 47,000 in overclaimed input tax. A managed voluntary disclosure — carrying a fixed AED 3,000 penalty for a first disclosure, AED 5,000 for a second — proved significantly less costly than the penalties an FTA-initiated audit would have applied to the same errors.