Common VAT mistakes
Six mistakes that change a VAT return, shown on Kuting Kitchen's Q3 2550Q: what each one costs, and the six-point check that catches them.
← 4.3 Filing the 2550Q, part by partThe return, done right
Here's Kuting Kitchen's July–September 2026 VAT return from Lesson 4.3, reduced to the lines that matter: sales ₱1,200,000, output VAT ₱144,000, input VAT ₱93,600, VAT payable ₱50,400, with the Summary List of Sales and Purchases (SLSP) attached.
Now watch what six common mistakes do to it. Some make you pay too much. Others make you pay too little, which costs more later.
1. Taking 12% of a price that already includes VAT
Customers paid ₱1,344,000, VAT included. Taking 12% of that gives ₱161,280, and the return now says ₱67,680 is payable.
Prices on Shopee already include VAT. Divide by 1.12 to get the sale (₱1,200,000), and the rest is VAT (₱144,000). The mistake costs ₱17,280.
2. Forgetting the VAT inside marketplace fees
If the ₱201,600 of Shopee, Lazada and TikTok fees is booked as one expense, its ₱21,600 of input VAT disappears. Input VAT drops to ₱72,000, and VAT payable climbs to ₱72,000.
Get each marketplace's VAT invoice for its fees and split out the VAT, the way Lesson 3.4 does for one payout.
3. Claiming input VAT without a valid invoice
Suppose one ₱6,720 cat food delivery came with only a handwritten note. Its ₱720 can't be claimed, so the right input VAT is ₱92,880 and the right VAT payable is ₱51,120.
Claim it anyway and the return is ₱720 short. If BIR finds it in an audit, you pay the ₱720 plus surcharge and interest. Lesson 4.2 has the three conditions.
4. Mixing the marketplace's withholding into VAT
Shopee, Lazada and TikTok withheld ₱6,000 from the quarter's payouts. It's tempting to put it in item 16, "creditable VAT withheld", and pay ₱44,400.
Does it reduce the VAT? No. That ₱6,000 is income tax withheld (0.5%, on the BIR Form 2307). It's claimed on the 1702Q (Lesson 7), not the 2550Q. Item 16 stays zero.
5. Skipping a quarter with no sales
Liza is VAT-registered. She closed her shop from April to June to restock, sold nothing, and didn't file.
No sales, no return? No. The 2550Q is due every quarter while your VAT registration is active, even with no sales. File it with zeros. A missing return can draw penalties even when no tax is due.
6. Leaving out the SLSP
The Summary List of Sales and Purchases lists the customers and suppliers behind the return's totals. It goes to BIR every quarter with the 2550Q: by the 25th day after the quarter, or the 30th for filers on the Electronic Filing and Payment System (eFPS).
The return isn't complete without it, even if every number on it is right.
The six-point check before you file
| ✓ | Sales before VAT: totals divided by 1.12, not multiplied by 12%. |
|---|---|
| ✓ | Marketplace fees split: their VAT counted as input VAT. |
| ✓ | Every input VAT backed: a valid invoice on file. |
| ✓ | Withholding kept out: the marketplace 0.5% goes to the 1702Q. |
| ✓ | Every quarter filed: zero or not. |
| ✓ | SLSP sent: with the return. |
Pop Quiz: spot the mistake
Each seller is VAT-registered. What went wrong?
Dani sold ₱224,000 this quarter, VAT included, and reported output VAT of ₱26,880.
₱224,000 ÷ 1.12 = ₱200,000, so the VAT is ₱24,000. ₱26,880 is 12% of ₱224,000.
Ben put the ₱1,500 Lazada withheld from his payouts in item 16, creditable VAT withheld.
The marketplace's 0.5% is income tax withheld. It belongs on the income tax return, not the 2550Q.
Elle had no sales from July to September, so she didn't file a 2550Q.
While the VAT registration is active, the 2550Q is due every quarter, even with zeros.
General information for learning, not tax advice. Kuting Kitchen, Liza and the sellers in the exercise are fictional. Penalty amounts depend on your taxpayer classification and the violation: ask your RDO or accountant.
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