Output VAT and Input VAT Explained for Philippine Businesses

If you're VAT-registered, almost everything about your VAT return comes down to two numbers: the output VAT you charge on your sales and the input VAT you pay on your purchases. VAT isn't a tax on your sales — it's a tax on the value you add, and the mechanism for that is simple subtraction: you remit the output you collected, less the input you incurred. Get those two buckets right in your books and your VAT return practically writes itself; get them muddled and nothing reconciles.

The short answer

Output VAT is what you collect on sales; input VAT is what you pay on purchases. At the end of each VAT period you total both, and the difference is what you remit to the BIR. Because the VAT you charge a customer was never your money, and the VAT you paid a supplier is recoverable, the two must sit in their own ledger accounts — separate from your sales income and your purchase costs — so the right figures flow straight into the quarterly VAT return.

Who this guide is for

• VAT-registered owners and freelancers who want to understand what their VAT return is actually doing.
• Bookkeepers setting up a chart of accounts so output and input VAT post cleanly from each sale and purchase.
• Anyone weighing VAT vs Non-VAT who wants to see how the credit mechanism works before they register.
• Businesses that struggle to reconcile a VAT return back to the general ledger and suspect the gross-vs-net recording is the culprit.

What output VAT is

Output VAT is the VAT you add on top of your taxable sales and collect from your customer. If you sell at a VAT-exclusive price, you add the VAT (the standard rate is currently 12%) to arrive at the gross the customer pays; if you quote a VAT-inclusive price, the VAT is the portion already baked into it. Either way, that VAT amount is not yours to keep — you're collecting it on behalf of the government and holding it as a liability until you remit it.

This is the single most common conceptual slip for new VAT businesses: treating the full gross receipt as income. The sale income is the net amount; the VAT on top is a payable. If you bank the gross and book it all as revenue, you'll overstate income, understate your VAT liability, and get a nasty surprise at filing time.

What input VAT is

Input VAT is the VAT you pay your suppliers when you buy goods or services for the business. Mirror-image to output: it is not an expense to be lumped into the cost of what you bought — it's a credit you can offset against the output VAT you owe. When you buy a VATable item, the price splits into the net cost (which is your actual expense or asset) and the input VAT (which goes to its own account, ready to net against output).

Crucially, not all input VAT is automatically creditable, and the documentation rules are strict — covered below under substantiation. A purchase from a Non-VAT supplier carries no input VAT to claim; an exempt or zero-rated purchase behaves differently again. When in doubt, the supplier's invoice tells you whether VAT was charged at all.

How they net: computing what you remit

For each VAT period you total your output VAT (from all taxable sales) and your input VAT (from all substantiated purchases). The headline computation is simply:

Notice that your sales volume doesn't move in lockstep with your VAT bill — a quarter with heavy VATable purchasing can shrink the net payable even on strong sales, because the input VAT climbs. That's the whole point of VAT being a tax on value added: you only effectively remit VAT on the margin you create, not on your gross turnover.

Why gross-vs-net recording matters

The most frequent reason a VAT return won't reconcile to the books is inconsistent gross-vs-net recording. If some sales are entered VAT-inclusive (gross) and others VAT-exclusive (net), with the VAT sometimes split out and sometimes buried, there's no clean ledger total for output VAT to read from. The fix is a discipline, not a spreadsheet trick: every taxable line splits into net + VAT, with the VAT posting to a dedicated Output VAT or Input VAT account.

Done consistently, your general ledger carries running balances for output VAT and input VAT at all times. The VAT return is then a report of those balances, not a separate calculation you reconstruct by hand — which is exactly the property that lets the return foot back to the books line by line.

What records substantiate input VAT

You can't claim input VAT on memory or a bank statement alone. The BIR requires that input VAT be substantiated by proper documentation, and a claim without it is exactly the kind of item disallowed on audit. In practice that means:

• A valid VAT invoice (for goods) or VAT official receipt (for services) from a VAT-registered supplier, showing the VAT separately.
• The document made out in your business's name and carrying your TIN — not a generic or blank-payee receipt.
• For imports, the supporting import documents and proof of VAT paid to Customs.
• Consistency with what you've recorded in your books and reported in your Summary List of Purchases — see the SLSP guide.

1. 1

   Record sales net + output VAT

   On every taxable sale, separate the net selling price from the output VAT and post the VAT to your Output VAT liability account.

2. 2

   Record purchases net + input VAT

   On every VATable purchase backed by a valid VAT invoice or OR, separate the net cost from the input VAT and post the VAT to your Input VAT account.

3. 3

   Let the ledger accumulate

   Through the period, your Output VAT and Input VAT accounts build running balances straight from your entries — no separate tally needed.

4. 4

   Net the two at period-end

   Compute output VAT minus creditable input VAT. A positive figure is payable; an excess of input generally carries forward.

5. 5

   Reconcile to the books and the SLSP

   Confirm the VAT return figures tie to your ledger balances and to your Summary List of Sales and Purchases before you file.

How this connects to your books

Output and input VAT are not a filing-time chore bolted onto your books — they are part of the books, sitting as live ledger accounts that update with every sale and purchase. When each line splits net + VAT automatically and the VAT lands in the right account, your VAT return and your 2550Q become a readout of balances you already hold, and reconciliation stops being a monthly reconstruction.

Common mistakes

• Booking gross receipts as income. The VAT portion is a liability you hold for the government, not revenue — split it out.
• Treating input VAT as an expense. Input VAT is a credit against output VAT; burying it in the cost overstates expenses and forfeits the claim.
• Mixing gross and net entries. Recording some lines VAT-inclusive and others net breaks the ledger total your return reads from.
• Claiming input VAT without a valid document. No proper VAT invoice or OR in your name and TIN means the input VAT is disallowable on audit.
• Claiming VAT on Non-VAT, exempt, or zero-rated purchases. If the supplier didn't charge VAT, there's no input VAT to credit.