- Corporate Tax and VAT are separate registrations. Registering for one does not cover the other, regardless of what many founders assume.
- Every new company must register for Corporate Tax within three months of incorporation, even with zero revenue or an expected loss.
- VAT registration is mandatory once taxable supplies exceed AED 375,000 over a rolling 12-month period, tracked continuously rather than by calendar year.
- Late Corporate Tax registration carries a flat AED 10,000 penalty. Late VAT registration carries AED 1,000 for a first offence, rising to AED 2,000 if repeated within 24 months.
- Self-correcting a tax error before the FTA finds it carries a 1% monthly penalty on the underpaid amount, versus a flat 15% penalty if the FTA discovers it first.
- Issuing an invoice without a valid Tax Registration Number carries its own separate AED 5,000 fine per non-compliant invoice.
Corporate Tax and VAT are two completely separate registrations in the UAE, with different thresholds, different deadlines, and different penalties. Registering for one does not register you for the other, and every new company must register for Corporate Tax within three months of incorporation regardless of revenue, even if it expects a loss. Confusing the two, or assuming one covers both, is the single most common and most expensive compliance mistake new business owners make.
This guide separates the two clearly: who actually has to register, by when, and what it costs to get it wrong.
Corporate Tax and VAT are not the same registration
Corporate Tax is a tax on business profit, introduced across the UAE from 2023. VAT is a tax on the sale of goods and services, in place since 2018. A company can owe one, both, or neither, and must register for each independently through the Federal Tax Authority’s EmaraTax portal.
| Corporate Tax | VAT | |
|---|---|---|
| What it taxes | Business profit | Sale of goods and services |
| Standard rate | 9% above the profit threshold | 5% on taxable supplies |
| Who must register | Every taxable person, including companies with any revenue | Businesses exceeding AED 375,000 in taxable supplies |
| Registration deadline | 3 months from incorporation | 30 days after exceeding the threshold |
| Late registration penalty | AED 10,000 flat | AED 1,000 first offence, AED 2,000 if repeated within 24 months |
“Registering for Corporate Tax does not register you for VAT. Registering for VAT does not register you for Corporate Tax. The Federal Tax Authority treats them as two unrelated obligations that happen to share a portal.”
Who actually needs to register for Corporate Tax
See e.zone’s dedicated rundown of the 2025 Corporate Tax registration deadline for the government’s own phased schedule.
Every “taxable person” must register, regardless of whether they expect to owe any tax. This includes every company operating in the UAE, and natural persons such as freelancers and sole proprietors whose business turnover exceeds AED 1 million in a calendar year.
A pre-revenue startup incorporated with no income yet still has three months from its incorporation date to register. Expecting a loss, or expecting to qualify for the 0% free zone rate, does not remove the registration requirement itself. For the detail on how the 0% rate actually works for free zone companies specifically, see our guide on how UAE Corporate Tax applies to free zone companies.
Who actually needs to register for VAT
VAT registration is mandatory once a business’s taxable supplies and imports exceed AED 375,000 over a rolling 12-month period, or are expected to exceed that amount in the next 30 days alone. Businesses between AED 187,500 and AED 375,000 can register voluntarily, which is often worth doing if a business wants to reclaim VAT on its own expenses early.
Unlike Corporate Tax, VAT registration is not automatic just because a company exists. A brand-new company with no sales yet has no VAT obligation until it approaches the threshold.
What it costs to register late
- Corporate Tax late registration: a flat AED 10,000 penalty, regardless of how small the business is or whether any tax is actually owed.
- VAT late registration: AED 1,000 for a first offence, rising to AED 2,000 if it happens again within 24 months, plus the business becomes retroactively liable for VAT on all taxable supplies made from the date registration should have occurred.
- Incorrect invoicing: issuing an invoice without a valid Tax Registration Number, or with the wrong VAT amount, carries a fine of AED 5,000 per non-compliant invoice.
The Federal Tax Authority also distinguishes between errors it finds and errors a business corrects itself. An FTA-discovered error carries a flat 15% penalty on the unpaid tax. An error the business identifies and corrects proactively carries a much smaller 1% per month penalty on the underpaid amount, which is a meaningful reason to review filings before an audit rather than after one.
Consider a founder who registers a mainland trading company and, six months later, realizes revenue has quietly crossed AED 375,000. Corporate Tax registration was completed on time, within three months of incorporation, so that obligation is covered. VAT was never on the radar, since the founder assumed the earlier Corporate Tax registration meant tax registration was handled.
By the time the oversight is caught, the company owes a late registration penalty and is retroactively liable for VAT on every sale made since the threshold was crossed, not just from the date the mistake was noticed.
How to register for each, step by step
- Create an EmaraTax account through the Federal Tax Authority’s portal, using your trade licence details.
- Register for Corporate Tax first, within three months of incorporation, regardless of current revenue.
- Track your rolling 12-month taxable supplies from the day you start trading, not from the calendar year start.
- Register for VAT within 30 days of exceeding AED 375,000, or sooner if you expect to cross it within the next 30 days.
- Issue compliant invoices with your Tax Registration Number as soon as VAT registration is approved.
- File returns on schedule for both taxes independently. They do not share a filing calendar.
Common mistakes with tax registration
- Assuming Corporate Tax registration automatically covers VAT, or vice versa. They are entirely separate.
- Waiting for the calendar year to end before checking the VAT threshold, instead of tracking the rolling 12-month figure continuously.
- Assuming a pre-revenue or loss-making company is exempt from Corporate Tax registration.
- Issuing invoices without a Tax Registration Number while a VAT application is still pending.
- Waiting for an FTA audit to fix a known error, rather than self-correcting under the lower 1% monthly penalty.
Getting the rest of your compliance calendar right
Tax registration is one part of a wider compliance picture that also includes licence renewals, UBO filings, and economic substance requirements. Our the broader compliance checklist covers what every business actually needs to track beyond tax alone. If you have not yet incorporated, our guides to free zone entity registration and mainland entity registration cover the formation process itself.
When professional help is worth it
Straightforward businesses with a single revenue stream and no international structuring can often complete both registrations directly through EmaraTax. Where it gets genuinely complex, such as multiple related entities, free zone qualifying income calculations, or a VAT threshold crossed mid-year, is exactly where a tax advisor earns their fee, since the cost of an FTA-discovered error is consistently higher than the cost of getting it filed correctly the first time. e.zone’s tax registration team can confirm your registration timeline and flag threshold risk before either deadline passes.
Tax filings are only one line item in a company’s annual budget; see the full recurring-cost picture beyond tax filings.
Frequently asked questions
Does registering for Corporate Tax also register my business for VAT?
No. They are entirely separate registrations through the Federal Tax Authority, each with its own threshold, deadline, and penalty structure.
When does a new UAE company need to register for Corporate Tax?
Within three months of incorporation, regardless of revenue. Even a pre-revenue startup expecting a loss must still register on time.
At what revenue do I need to register for VAT in the UAE?
VAT registration is mandatory once taxable supplies exceed AED 375,000 over a rolling 12-month period. Voluntary registration is available from AED 187,500.
What is the penalty for late Corporate Tax registration in the UAE?
A flat AED 10,000 administrative penalty, regardless of the size of the business or whether any tax is actually owed.
What is the penalty for late VAT registration?
AED 1,000 for a first offence, rising to AED 2,000 if it happens again within 24 months, plus retroactive VAT liability from the date registration should have occurred.
Is it cheaper to self-correct a tax filing error than wait for an audit?
Yes. A self-corrected error carries a 1% monthly penalty on the underpaid amount, compared to a flat 15% penalty if the Federal Tax Authority discovers the error first.
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