BIR Form 1801: How to File the Philippine Estate Tax Return

BIR Form 1801 is the estate tax return that must be filed with the Bureau of Internal Revenue whenever someone dies owning assets in the Philippines. Filing this form correctly — and on time — is the gateway to unlocking frozen bank accounts, transferring land titles, and moving vehicles into the heirs' names. Without the electronic Certificate Authorizing Registration (eCAR) that the BIR issues after processing Form 1801, no property registry or financial institution will release inherited assets.

When to File

The deadline is one year from the date of death. The BIR can grant a maximum two-year extension if you submit a written request with valid justification before the original deadline expires.

Filing late triggers immediate penalties:

• 25% surcharge on the basic estate tax due
• 12% annual interest compounding from the date of death until payment
• Compromise penalties based on the estate's gross value

The estate tax amnesty under RA 11956 expired on June 14, 2025, so there is no longer a penalty-free window for settling old estates. Every month of delay now costs real money.

Where to File

File at the Revenue District Office (RDO) that has jurisdiction over the deceased's last legal residence — not where the death occurred, not where the property is located. If the deceased was a non-resident foreign national, file at RDO No. 39 (South Quezon City).

Before filing, you need a Tax Identification Number (TIN) for the estate itself. Apply at the same RDO using BIR Form 1904. The estate TIN is separate from the deceased's personal TIN and is required on every tax document going forward.

Required Documents

Attach these to your Form 1801 submission:

• PSA death certificate (SECPA copy, not the local LCR copy)
• Estate TIN (from BIR Form 1904)
• Certified true copies of all land titles (Transfer Certificates of Title or Condominium Certificates of Title) owned by the deceased
• Latest tax declarations from the Municipal or City Assessor's Office for each property
• Bank certifications showing all account balances as of the date of death
• Proof of claims against the estate — outstanding loans, mortgages, unpaid medical bills with documentation
• Certificate of stock holdings from the Philippine Stock Exchange (if applicable)
• Motor vehicle registrations (Certificate of Registration from LTO)
• Deed of Extrajudicial Settlement or court order partitioning the estate (if already executed)
• Special Power of Attorney if someone other than the administrator or executor is filing

How to Fill Out the Form

The form itself is structured in sections:

Part I — Taxpayer Information: the estate's TIN, the deceased's name, date of death, and the filing RDO.

Part II — Gross Estate: list every asset with its fair market value or zonal value at the date of death. The BIR uses the higher of zonal value (their published schedule) or the assessor's fair market value.

Part III — Allowable Deductions: this is where you claim the standard deduction (PHP 5 million), family home deduction (up to PHP 10 million), and any claims against the estate. Get this section right — these deductions determine how much tax you actually owe.

Part IV — Tax Computation: apply the 6% flat rate to the net taxable estate (gross estate minus deductions). If the net taxable estate is zero or negative, the tax is zero — but you still need to file the return and get the eCAR.

After Filing: Getting the eCAR

Once the BIR accepts your Form 1801 and payment, they process the return and issue an electronic Certificate Authorizing Registration (eCAR) for each registrable asset — one for each land title, one for each bank account, one for each vehicle.

Processing time varies: straightforward estates with complete documentation may get their eCAR in four to eight weeks. Complex estates with multiple properties, missing documents, or valuation disputes can take three to six months.

The eCAR is the single most important document in the entire estate settlement process. Without it:

• Banks will not release frozen deposits (after the one-year direct withdrawal window closes)
• The Registry of Deeds will not cancel old titles or issue new ones
• The LTO will not transfer vehicle registrations

Common Filing Mistakes

Using the wrong property valuation: the BIR compares your declared values against their zonal value tables. If you understate a property's value, expect the return to be rejected or audited.

Missing the estate TIN application: some families try to file Form 1801 using the deceased's personal TIN. The BIR requires a separate estate TIN — filing under the wrong TIN means starting over.

Incomplete bank certifications: every bank account the deceased held must be declared, even accounts with minimal balances. Undeclared accounts discovered later can trigger fraud investigations.

The Someone Died in Philippines: English Speaker's Emergency Guide provides the complete filing sequence — from estate TIN application through Form 1801 submission — with every required document mapped to the specific agency that issues it.

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