A tax refund shouldn't take months to process, but in practice, many refunds sit unresolved simply because of small, avoidable errors in the original filing. Here are the five issues we see most often — and how to avoid them.

1. Mismatched withholding tax figures

Every withholding tax certificate — from your bank, your employer, your phone bill — needs to match exactly what's declared in your return. Even a small rounding difference can flag your file for manual review, which adds weeks to the process.

2. Incomplete bank account declarations

If you hold multiple bank accounts and only declare the primary one, FBR's system may not reconcile your wealth statement properly. All active accounts, even dormant ones with minimal activity, should be listed.

3. Filing without reconciling the wealth statement

The wealth statement isn't a formality — it's cross-checked against your declared income and expenses. A refund claim sitting alongside an unreconciled wealth statement is far more likely to trigger a query notice before any refund is processed.

4. Claiming a refund without supporting documentation

If you're claiming excess withholding tax as a refund, you need the actual certificates on hand — not just the figures. Refund claims are frequently held up simply because the taxpayer is asked to produce documentation they didn't retain.

5. Submitting close to the deadline

Late-season filings get caught in the same processing backlog as everyone else's. Filing early in the season, once your documents are ready, generally means a faster review — simply because you're not in the queue with everyone else who waited until the last week.

Most of these issues are preventable with a careful review before submission. If a previous year's refund is still pending, it's worth checking your original filing against these five points first — that's usually where the hold-up is.