ABOUT THE SERVICE: Similar to court orders/decrees, legal instruments are also registrable in the civil registrar where the birth certificate of the child is registered. 


The following are considered legal instruments:

  • Affidavit of Acknowledgement/Admission of paternity – a public document executed by the biological father establishing paternal relationship with the child.
  • Legitimation – is a remedy by means of which those in fact were not born in wedlock and should, therefore, be considered illegitimate, are, by fiction, considered legitimate, it being supposed that they were born when their parents were already validly married.
  • Affidavit to Use the Surname of the Father – under RA 9255, it is a public instrument executed by the father giving the child the privilege to use his surname.

CLIENT GROUPS:  Parents of illegitimate children



            Acknowledgement/Admission of paternity

  1. Photocopy of the Registered Certificate of Live Birth of the child
  2. Duly notarized affidavit of acknowledgement/admission of paternity
  3. Baptismal Certificate
  4. Proof of paternal filiation (if the child is not acknowledged upon registration).


  1. Photocopy of the Registered Certificate of Live Birth of the child duly acknowledged by the father
  2. Duly notarized affidavit of legitimation executed by both parents
  3. Marriage contract of parents
  4. Certificate of No Marriage (CENOMAR) to other person

Affidavit to Use the Surname of the Father

  1. Registered Certificate of Live Birth of the child
  2. Duly notarized AUSF executed by the father himself (if the father is not mentioned in the Certificate of Live Birth of the child; or by the mother/guardian (if the father is already mentioned in the Certificate of Live Birth of the child)
  3. At least two public handwritten instrument of the father (if not….)


Monday to Friday:

8:00AM to 5:00PM


            Registration of Legal Instruments ……………………… Php 200.00

            Documentary Stamp Tax Fee……………………………           15.00




Steps involved

Action of the MCRO Transaction Time Persons Responsible
1. Secure checklist of requirements at LCRO. Gives a briefing about the service.

10 minutes

Evelyn Catanyag/Mary Ann Santos
2. Submit requirements and provide the needed information during the interview. Reviews requirements and interviews the client.  Issues order of payment form and instructs client to pay fees.

5 minutes

Evelyn Catanyag/Mary Ann Santos

3. pay the corresponding fees at the Mun. Treasurer’s Office. Issues official receipt.

10 minutes

Revenue Officer/Clerk
4. Return to LCRO and present the Official receipt.  Wait as the staff/clerk annotated the documents.

Annotates documents  and records the documents and the official receipt.

MCR signs the annotated documents.

10 minutes

Noel Jose J. Rayco

Evelyn Catanyag/Mary Ann Santos

5.Claim the annotated Certified Copies of the COLB of the child. Releases the annotated Certified copies of the COLB.

2 minutes

Evelyn Catanyag/Mary Ann Santos


National Women's Month

As part of the month-long celebration of National Women's Month, the Municipality of Tanay celebrated with a simple yet meaningful event on March 5, 2023. After the flag raising ceremony, the female employees of LGU-Tanay received a warm welcome from Mayor Lito Tanjuatco, Vice Mayor Rex Manuel Tanjuatco, and the rest of the sangguniang bayan members.
As a gesture of appreciation and recognition, all the female employees were given a beautiful rose as admiration reminding everyone of the valuable contributions made by women in the workforce.   To kickstart their day with energy and enthusiasm, a delicious breakfast with brewed coffee has been available to the women workforce.

Read more ...

"Love Wins in Tanay: Kasalang Bayan 2023 Joins 79 Couples in Matrimony"

On February 14, 2023, the municipality of Tanay, Rizal held its Kasalang Bayan 2023. Spearheaded by the Honorable Mayor Rafael “Lito” A. Tanjuatco, Vice Mayor Rex Manuel C. Tanjuatco, and the Sangguniang Bayan, the event was a resounding success, with 79 couples taking part in the mass wedding ceremony held at the Tanay Municipal Grounds.

Read more ...

Athlete's Cash Assistance Pay-out, ibinigay sa mga Atleta ng Tanay

Ngayong Marso 1, 2023, nagsagawa ng Athlete's Cash Assistance Pay-out sa Pamahalaang Bayan ng Tanay sa pamamagitan ng mga inisyatibo nina Mayor Lito Tanjuatco at Vice Mayor Rex Manuel Tanjuatco at ng Sangguniang Bayan. Ito ay bilang tulong sa mga Atletang magrerepresenta sa ating bayan sa Palarong Panlalawigan 2023.

Read more ...