The installment sale of real property is the most common mode of selling subdivision lots, condominium units, and house-and-lot packages in the Philippines. Because ownership is almost always retained by the seller until full payment (through a Contract to Sell), the question of when the sale is consummated and when the corresponding VAT sales invoice must be issued arises frequently among developers, accounting teams, and tax practitioners.
This article consolidates all the relevant rules, regulations, BIR rulings, and prevailing practices as of November 2025.
1. Legal Nature of the Transaction: Contract to Sell vs. Deed of Absolute Sale
- Contract to Sell (CTS) – Title and ownership remain with the seller until full payment. The contract is conditional. The sale is not yet consummated under civil law until full payment and execution of the Deed of Absolute Sale (DOAS).
- Deed of Absolute Sale (DOAS) – Unconditional sale. Ownership passes upon execution and notarization (even if payment is not yet complete, though this is rare in practice).
The Supreme Court has consistently ruled (e.g., Chua v. Court of Appeals, G.R. No. 126336, November 20, 2002, reiterated in countless cases) that in a Contract to Sell, the seller remains the owner until full payment. Therefore, the “sale” is perfected only upon full payment.
This civil law distinction is crucial because the BIR respects it for purposes of when the sale is consummated and when the principal VAT sales invoice must be issued.
2. VAT Treatment of Installment Sales (Initial Payments ≤ 25% of Gross Selling Price)
Section 106(A)(1) of the Tax Code, as implemented by RR No. 16-2005 (as amended by RR 13-2018 and other issuances), provides:
“In the case of sale of real property on the installment plan — the initial payments of which in the year of sale do not exceed twenty-five percent (25%) of the gross selling price — the output tax shall be based on the actual collection received.”
Therefore:
- The seller is allowed to pay 12% VAT only on the amounts actually collected during the taxable quarter (collection basis).
- Initial payments include reservation fee, down payment, and all other payments made in the year of sale (even if made after the CTS signing).
If initial payments exceed 25%, the transaction is treated as a cash sale, and the entire 12% VAT on the full contract price becomes due in the quarter of sale.
3. Proper Issuance of VAT Documents in Installment Sales (≤ 25% Initial Payments)
The BIR has consistently ruled and clarified through numerous rulings and circulars (particularly BIR Ruling Nos. DA-489-03, DA-073-2005, DA-191-06, and RMC No. 55-2019) that:
During the installment period (while still under Contract to Sell):
- The seller must issue a VAT Official Receipt (OR) for every collection (reservation, down payment, monthly amortizations, even spot cash additional payments).
- The OR must indicate:
- The amount received
- That it is “installment payment for Lot __ / Unit __ per Contract to Sell dated ___”
- The corresponding output VAT (collection × 12/112)
- No principal VAT Sales Invoice (SI) for the full amount is issued yet. Issuing the full SI prematurely would trigger full VAT liability immediately (losing the collection-basis privilege).
Upon full payment and execution of the Deed of Absolute Sale:
- This is the moment the sale is consummated both civilly and for tax purposes.
- The seller must now issue the principal VAT Sales Invoice covering the entire gross selling price.
- The SI must state:
- Full contract price
- 12% VAT on the full amount
- Notation: “Fully paid as evidenced by Official Receipts Nos. _____ to _____” or “Balance paid per OR No. _____”
- The buyer surrenders all previous ORs, or the seller attaches photocopies to the SI.
- This principal SI is the document required by the BIR for:
- Computation and payment of 6% Capital Gains Tax (or 1.5% CWT if seller is habitual)
- Payment of Documentary Stamp Tax (1.5%)
- Transfer of title at the Registry of Deeds
4. Consequences of Issuing the Full Sales Invoice Prematurely
If the developer issues the full VAT Sales Invoice upon signing of the CTS or upon down payment:
- The entire 12% VAT becomes due and reportable in that quarter, even if only 10–20% has been collected.
- The seller loses the benefit of the installment (collection) basis.
- This has been repeatedly penalized in BIR assessments.
Many developers in the early 2000s made this mistake and were assessed deficiency VAT on the full uncollected balance.
5. What If Initial Payments Exceed 25%?
The transaction is treated as a cash sale even if subsequent payments are on installment.
Consequence:
- Full 12% VAT on the entire contract price is due in the quarter when the CTS was signed or when the excess-over-25% payment was received.
- The seller must issue the principal VAT Sales Invoice for the full amount at that time.
- Subsequent collections are treated as “payments per SI No. ___” and covered by Official Receipts, but no additional VAT is due (since full VAT was already recognized).
6. Special Cases and BIR Rulings
| Scenario | When to Issue Full SI | VAT Basis | Key BIR Reference |
|---|---|---|---|
| Pure Contract to Sell, ≤25% initial, full payment after 5–10 years | Upon full payment + DOAS | Collection basis during installment; full VAT already paid via ORs | BIR Ruling DA-073-2005, DA-489-03 |
| Buyer pays >25% on or before CTS signing | Immediately upon receipt of excess payment or CTS signing | Full accrual basis | Sec. 4.106-5, RR 16-2005 |
| Sale via Deed of Absolute Sale from the beginning (rare) | Upon execution of DOAS | Full accrual basis | Standard rule |
| Pag-IBIG or bank take-out (buyer pays balance via bank loan) | Upon receipt of bank proceeds + DOAS | Collection basis until take-out; VAT on bank proceeds recognized when received | RMC No. 55-2019 |
| Cancellation/forfeiture | No full SI ever issued (sale never consummated) | VAT already paid on forfeited amounts remains with government | BIR Ruling No. 041-2018 |
7. Practical Checklist for Developers
- Upon reservation/down payment → Issue VAT OR only.
- Every monthly amortization → Issue VAT OR only.
- Never issue the full Sales Invoice while cumulative payments ≤ total contract price and title has not been transferred.
- Only when buyer has paid 100% and is ready to get the title → Execute DOAS → Issue the one and only principal VAT Sales Invoice for the full amount.
- Attach all previous ORs or list them in the SI.
- Use the SI for CAR application, CGT/DST payment, and RD transfer.
Conclusion
In installment sales of real property under a Contract to Sell with initial payments not exceeding 25% of the gross selling price, the principal VAT Sales Invoice for the full contract price must be issued only upon full payment and execution of the Deed of Absolute Sale — the moment the sale is legally consummated.
During the entire installment period, only VAT Official Receipts are issued for each collection. This practice fully complies with the Tax Code, consolidated VAT regulations, and decades of BIR rulings, while preserving the seller’s right to pay VAT on the collection basis.
Failure to follow this sequence usually results in either premature VAT payment (loss of cash flow) or BIR deficiency assessments.
Developers and practitioners are well-advised to structure their billing and accounting systems accordingly and to train sales/admin staff strictly on this point.