Review the changes in the child dependency ratio, old age dependency ratio, and dependency ratio in the past 20 years, the main reason is that late marriage, late births and other factors have led to the reduction in births, the child dependency ratio decreased from 30.05 in 2001 to 17.72 in 2019.
Conversely, advances in environmental health and medical care have increased the average life expectancy, resulting in a continuous increase in the elderly population, the old age dependency ratio increased from 12.27 in 2001 to 21.24 in 2019.
In 2017, the old age dependency ratio has officially surpassed the child dependency ratio, shows that the situation of declining birthrates and aging societies deserves attention.The dependency ratio continued to decline from 42.32 in 2001 to the lowest point of 34.75 in 2012, and then gradually rose to 38.96 in 2018.

In 2019, there were 3,438 foreigner have become the ROC citizens through naturalization. Among them, the country of origin is Vietnam with the largest number of 2,325, accounting for 67.6% of the total naturalized population. Followed by 362 is the Philippines, accounting for 10.5% of the total naturalized population. Third is 350 Indonesian, accounting for 10.2% of the total naturalized population. In addition to the above three countries, there are also nationals from Thailand, Malaysia, and other countries who choose to naturalize our nationality. It can be seen that the majority of naturalized nationals are Southeast Asian origin.

To increase the efficiency of foreign capital investment, promote better use of foreign technical know-how in the exploitation of land resources, the Land Law was amended in 2001, foreigners or foreign companies are permitted to acquire land for personal use, investment or public welfare purposes, and to engage in various land development, improvement, residential or commercial construction of office buildings. From 2017 to 2019, the number of cases of foreigners acquiring real estate was 863 cases, 912 cases, and 1041 cases, respectively; most of the cases were concentrated in 6 municipalities, accounting for 80% or more. The acquisitions in cities and counties were the most in New Taipei City and the second in Taipei City. It shows that foreigners still prefer the metropolitan areas which come with convenient transportation and better living functions. Outside the 6 municipalities, Hsinchu City and Hsinchu County have the most cases, each accounting for about 2% to 3%, in the past 3 years.

Due to the implementation of Taiwan's family plan in 1960s has been successful, the fertility rate was well-controlled, and the number of babies was dropped tremendously. As a result, the number of women who can be "mothers" has also dropped rapidly. After reaching a peak of 6.367 million in 2000, the average annual reduction is 28,000 by 2018, there were only 5.863 million people left.
According to Population Projections for the Republic of China (2018-2065), the number of women of childbearing age has decreased by about 85,000 annually since 2019, and only 3.913 million are left in 2041, that is, the only number of "mothers" who may become 60% of that in 2000.
Therefore, Ministry of the Interior holds Single Speed Dating Events every year, which can help people to marry and bear of the right age, and slow down the trend of population decline in the future.

In Taiwanese traditional thought -“real estate will bring wealth,” which means that owning a real estate is an ultimate life goal.In the end of August 2019, total number of unmarried people who owns more than one real estate are 548,142, which male takes 280,739 and female takes 267,403.Observing from the cities and counties, New Taipei city leads the most people mentioned on the above, followed by Taipei city. Also, female’s numbers are more than male’s, which indicates that female’s capability of buying real estates enhance profoundly. Besides, the first and second rank of the non municipalities is Changhua County and Pingtung County.

In order to enhance transparency in information, the Ministry of the Interior has amended the Political Donations Act to require the authority hearing declaration to make the accounting reports of political donations fully available over the internet, and the Control Yuan has for the first time made public the accounting reports of political donations for the persons planning to participate in campaign of 107-year election of local civil servants. Therefore, if you would like to inquire about the political donations of these persons planning to participate in campaign, you can check them on the Website of the Control Yuan from now on!（URL：https://ardata.cy.gov.tw/home）

To facilitate real estate transfers, the Ministry of the Interior worked with the Ministry of Finance to implement the real estate transfer system integration plan.The E-filing System for Local Tax has allowed access to and import of land, building, and cadastral maps online. Applicants may check cadastral information using the system and import cadastral information on the subject of transfers, which reduces time to input data and cost of transcript application.

Simply click on the National ID Section of the Department of Household Registration, Ministry of the Interior's official website (https://www.ris.gov.tw), then click on Loss of National ID Card Application and Cancellation of Application (Citizen Digital Certificate not required) and enter your personal details to apply for a loss of National ID Card.
In order to prevent unlawful parties from obtaining your National ID Card and canceling your loss of National ID Card application using the details on the card, when applying for a loss of National ID Card, it is imperative to designate a "predetermined password for cancellation of loss National ID Card application". When applying for cancellation of loss of National ID Card, simply enter the "predetermined password for cancellation of loss National ID Card application" to protect your rights.

Standards for Identification of Basic Language Abilities and General Knowledge of the Rights and Duties of Naturalized ROC Citizens was promulgated on June 3, 2017; for the following 3 conditions including foreign spouses who have divorced an ROC national due to domestic violence and have not since remarried, or their ROC spouse has died and they have not remarried who had been married to an ROC national for at least two years, or who can demonstrate they remain in contact with family members of their deceased spouse, support their children who possess ROC nationality and who are legally incompetent or have limited legal competence, exercise rights and obligations on behalf of such children, and meet and interact in person with them, they are entitled to less stringent regulations applicable to foreign spouses when applying for naturalization in terms of basic proficiency in the national language of the ROC and basic knowledge of the rights and obligations of ROC nationals. For instance, when attending courses conducted by the Taiwanese government, the total number of hours required in the class is decreased from 200 hours to 72 hours, and the passing score for the naturalization test is reduced from 70 points to 60 points.

In order to realize the policy of offering the public convenient and citizen-friendly services and to improve the quality of National ID cards, starting on July 3, 2017, citizens may click on Online Application on the Department of Household Registration, MOI's official website (https://www.ris.gov.tw), then click National ID Card Photo Upload, enter their ID number, registered place of domicile, date of birth, and verification number in order to upload their digital photos. After uploading, approach the household registration office service counter to apply for your National ID Card, and the household registration office will download your digital photo to produce your National ID Card. There is no more need to submit photo hard copies, saving your time and money, so everyone is welcome to take advantage of the convenient service!