What Evidence Should Stay With the Return

A ledger total is not the evidence pack

The document that makes an input VAT claim supportable is normally the valid tax invoice, with import documents supporting imported goods. The FTA's Taxable Person Guide also lists tax credit notes, records of supplies and imports, adjustment records and a VAT account. Keep those source records beside the return bridge so a reviewer can trace each amount from the transaction to the relevant return line.

If you are at the decision point before filing, start with the return line that has no source record rather than with the easiest folder to tidy. A sales invoice supports output tax, a purchase tax invoice supports a purchase claim, a customs entry supports an import, and a credit note explains a reduction. The object should answer the question, not merely show that an amount was posted.

A source record also fixes the unit of review. Compare net value and VAT separately where the return requires it, and do not treat a gross expense total as recoverable input VAT. The FTA guide's Box 9 explanation says the claim is the VAT amount the business is entitled to recover.

• Sales invoices for output tax.
• Purchase tax invoices for input VAT.
• Customs entries for imported goods.
• Credit notes and adjustments for changes.

The pack follows the return lines that change

A business with ordinary local sales still needs more than a sales report if it claims input VAT. The evidence pack should cover purchases, imported goods, reverse-charge services, credit notes and adjustments that affect the period. The FTA Returns User Guide says recoverable input VAT is the amount the taxable person is entitled to recover, not every amount of VAT incurred on costs.

Credit notes deserve their own trail because they change the original transaction. The FTA's VAT guidance says a valid tax credit note identifies the original supply, the corrected value, the difference and the VAT related to that difference. A reverse-charge entry needs the supplier document and the calculation that explains the amount reported. A folder without those links is only storage.

The pack should preserve an exception rather than hide it. If an invoice is missing, mark the line as unsupported and show whether it was excluded. If a credit note arrives after the original entry, retain both documents so the reviewer can see the change.

• Separate recoverable from non-recoverable VAT.
• Link every credit note to its original invoice.
• Show the reverse-charge calculation and source.
• Explain every manual adjustment in writing.

Build the pack around the disputed lines

The work includes collecting the source invoices, matching credit notes, tying import and reverse-charge workings to the return, and preparing a short bridge from the ledger to each VAT line. It should also identify missing documents and amounts removed from the claim. It does not turn an unsupported expense into recoverable input VAT, and it does not replace the business's review of the final return.

Illustration only: taxable sales of AED 120,000 at 5% produce AED 6,000 of output VAT. Purchase records support AED 48,000 at 5%, producing AED 2,400 of input VAT. Before other adjustments, the bridge shows AED 6,000 minus AED 2,400 equals AED 3,600 payable. The arithmetic makes the review visible; the invoices and the business use still decide which input VAT is claimable.

The arithmetic should be reproducible by another person. Put the source amount, VAT amount, recovery decision and return line beside the document reference. A reviewer should be able to start with the return and reach the invoice without asking the preparer to explain an unlabelled total.

• Source invoices and alternative documents.
• Import and reverse-charge working papers.
• Credit-note and adjustment trail.
• A return bridge with missing-item flags.

Make the reviewer follow one trail

Begin with the VAT return and mark each line that needs support. Pull the matching ledger report, then attach the invoice, credit note, customs record or reverse-charge calculation. Recalculate the line from the source document, record any difference and explain why an item was removed or moved. Finish by saving the approved bridge with the return, not in a separate folder that loses its context.

The FTA's Taxable Person Guide says records do not have to be stored in one specific format, but it requires them to be readily available and legible. The guide does not say that an internal spreadsheet can replace a missing tax invoice or import record. That is the boundary of the evidence: a tidy index helps a reviewer, but it cannot create the document that proves the transaction.

The FTA's record-keeping guide also says records must be available in a legible form when requested. That is why file names, an index and a saved return matter. They do not change the tax treatment, but they make the source trail usable under time pressure.

• Mark unsupported return lines first.
• Trace each amount to one source record.
• Record removed and moved items.
• Save the approved bridge with the return.

Document condition drives the review effort

The work is shaped by transaction volume, missing invoices, the number of import entries, reverse-charge activity, credit-note corrections and the condition of the accounting export. A clean ledger with source files already indexed needs less investigation than a file where invoices are split across email, a shared drive and paper folders. The price of support is therefore driven by the work required to prove the lines, not by a promise about being cheap.

We would not file while an input VAT line rests only on a ledger total, because the FTA's evidence rule is about the underlying supply or import and the right to recover its VAT. The Taxable Person Guide says records are generally kept for at least five years after the relevant tax period. Keep the source, the bridge and the final return together for that period.

• Number of transactions and source files.
• Missing or duplicated invoices.
• Import and reverse-charge complexity.
• Quality of the existing reconciliation.