Twice in recent articles we have said the same thing: when a business struggles with corporate tax or VAT, the problem is almost never the filing. It is that the books were never set up properly in the first place.

This article is the follow-through on that. It covers what UAE law actually requires you to keep, who needs an audit, and a change arriving over the next year that will make informal bookkeeping untenable.

That change has a deadline in October.

E-Invoicing: The Timeline You Need on Your Calendar

The UAE is moving to mandatory structured e-invoicing. This is not a software preference — invoices will have to be issued in a defined XML format and transmitted through a government-approved provider.

The system went live on 1 July 2026 as a pilot with voluntary use. Mandatory adoption is phased by business size.

What an ASP Is, and Why It Matters

An Accredited Service Provider is a ministry-approved intermediary that transmits your invoices. You cannot simply email a PDF and call it an e-invoice.

• Invoices must be structured XML, compliant with the PINT AE schema — the UAE’s implementation of the Peppol international standard
• Transmission happens through your appointed ASP, not directly
• ASP eligibility is governed by Ministerial Resolution No. 64 of 2025, amended by Ministerial Resolution No. 56 of 2026

The penalty for failing to appoint an ASP and implement the system is AED 5,000 for each month of non-compliance. That accrues, in the same way the tax penalties we have written about elsewhere do.

If your revenue exceeds AED 50 million, your ASP deadline is 30 October 2026 — roughly six weeks away. If you are under that threshold you have until 31 March 2027, which sounds distant and will not feel it once you start changing invoicing systems.

The practical point for smaller businesses: this is coming for you too, on a slightly later schedule. Invoicing from a spreadsheet or a Word template has an expiry date now.

What You Must Keep, and For How Long

Retention periods differ between the two taxes, which causes confusion.

• Corporate tax: 7 years after the end of the relevant tax period
• VAT: 5 years

Since corporate tax is the longer requirement, keeping everything for seven years satisfies both. Use seven as your single rule and stop tracking two timelines.

Records should cover:

• Sales and purchase invoices
• Bank statements and reconciliations
• Contracts and agreements
• Payroll and WPS records
• Fixed asset registers
• Anything supporting a figure in a return you filed

Do You Need an Audit?

This catches people out, because the trigger is not only about size.

Audited financial statements, prepared by a UAE-licensed auditor, are required if:

• Your revenue exceeds AED 50 million in the tax period, or
• You are a Qualifying Free Zone Person — regardless of revenue

We flagged the second condition when writing about the 0 percent rate, and it bears repeating because it is counterintuitive. A free zone company turning over AED 400,000 that wants QFZP status needs a full statutory audit. The trigger is your status, not your size.

If you are weighing QFZP against Small Business Relief, the recurring audit fee belongs in that comparison.

Cash or Accrual? A Concession Worth Knowing

Financial statements are generally prepared under IFRS, on an accrual basis.

There is an exception that small businesses frequently miss: if revenue does not exceed AED 3 million, you may prepare statements on a cash basis. The FTA can also permit it in exceptional circumstances above that figure.

Cash basis is materially simpler — you record money when it moves, rather than tracking receivables and payables. For a small consultancy or service business, this removes a real amount of complexity at no cost to compliance.

Worth asking your accountant whether you qualify, because the default assumption is often accrual.

Setting Books Up Properly From the Start

Most of the pain we see traces back to the first six months, when bookkeeping felt like something to sort out later.

1. Separate accounts completely. Personal and business transactions in one account is the single biggest source of reconstruction work later.
2. Use accounting software from day one. Anything that reconciles to your bank feed. The cost is trivial against rebuilding a year of records.
3. Issue proper tax invoices. If you are VAT registered, every invoice needs your TRN and the VAT amount shown separately.
4. Reconcile monthly, not annually. A monthly revenue figure is also what lets you run the rolling VAT threshold test we covered previously.
5. Keep digital copies of everything. Seven years is a long time to rely on paper or an old laptop.
6. Choose software with an e-invoicing path. Ask any provider now what their PINT AE and ASP integration plan is.

Four Mistakes That Cost Real Money

• Mixing personal and business spending. Beyond the reconstruction work, it weakens your position if the FTA queries anything and complicates your bank’s periodic reviews.
• Reconstructing books at year end. Twelve months of receipts assembled in March produces errors, and errors in a filed return are your responsibility, not your accountant’s.
• Assuming dormant means nothing to do. A dormant company still files. Filing requires books, even if they show zero.
• Treating the bookkeeper as the compliance owner. Bookkeeping, VAT filing and corporate tax filing are frequently three separate engagements. Confirm explicitly who is doing which — the gap between them is where missed deadlines live.

What E-Invoicing Will Actually Change Day to Day

Worth being concrete, because “structured XML via an accredited provider” does not describe the experience of using it.

What changes:

• Invoices are generated by your accounting system and transmitted automatically, rather than produced as PDFs and emailed
• The format is fixed — you lose control over invoice layout and branding in the transmitted version
• Your invoice data reaches the tax authority near-real-time, rather than being summarised in a periodic return
• Errors surface immediately at validation instead of months later

What this means in practice:

• Your customer and supplier data has to be clean. Missing or wrong TRNs, inconsistent legal names, and incomplete addresses will cause validation failures. Tidying your contact records now is genuinely useful preparation.
• Backdating becomes impossible. Informal practices around invoice timing stop working when transmission is timestamped through an approved channel.
• Reconciliation gets easier. This is the upside — structured data means less manual matching and fewer disputes about what was issued.

Businesses already on proper accounting software with accurate customer records will find this a modest transition. Businesses invoicing from spreadsheets will find it a rebuild. That is the real reason to act before your deadline rather than at it.

What This Connects To

Proper books are not an end in themselves. They are the input to nearly everything else:

• Corporate tax returns and your Small Business Relief or QFZP election
• The rolling VAT threshold test
• Bank compliance reviews, where unclear records trigger scrutiny
• Golden Visa applications via the tax or revenue routes
• Clean company closure, which cannot complete with unfiled returns behind it

Every one of those becomes straightforward with organised records and painful without them.

A Short Checklist for the Next 90 Days

1. Confirm which e-invoicing phase you fall into, based on revenue
2. Ask your accounting software provider directly about their PINT AE and ASP plans
3. Audit your customer records for missing or incorrect TRNs
4. Confirm whether you qualify for cash-basis reporting under AED 3 million
5. Establish who owns bookkeeping, VAT filing and corporate tax filing — by name
6. Check your records are stored digitally and retrievable for seven years

None of these require a large budget. Most require an afternoon and a few direct questions to people you already pay.

A Necessary Note

This is general information rather than accounting advice. Requirements vary by entity type and sector, and the e-invoicing rules are still being implemented — the ASP framework was amended as recently as 2026.

Confirm your own position and deadlines with a qualified accountant, particularly if you are near the AED 50 million threshold or holding QFZP status.

Over to You

We would like to hear how others are handling this:

• Has anyone above AED 50 million appointed an ASP yet, and how did you choose?
• Which accounting software are you using, and does it have a credible e-invoicing roadmap?
• For small businesses — are you on cash basis, and did your accountant raise it or did you have to ask?

Comment below. E-invoicing is early enough that practical experience is scarce, and anything you share now will be genuinely useful to people facing the 2027 deadlines.

And if you are not sure whether your records would survive an FTA review, that is worth establishing before one happens. Our consultations are free, and problems found early are almost always cheaper than problems found during a query.