Receipts

Today, I want to [introduce | tell you about] the Taiwanese receipt policy.

I don’t think using “introduce” in this way is natural.

Here’s a discussion about it:
https://forum.wordreference.com/threads/introduce-a-place-to-someone.3475333

Like in most countries, we get a receipt after purchasing products.

Today, I want to introduce thea Taiwanese receipt policypolicy on/about receipts.

QUESTION: Is there *only one* Taiwanese receipt policy? (Perhaps the plural is better.)

Like most countries, weconsumers in Taiwan get a receipt after purchasing (legal) products.

LOGIC: If buying illegal items such as guns or drugs, perhaps no receipt is used.

However, in Taiwan, the receipt will contain a number, which is not only used to track the receipt but also to check for a prizea lottery prize number.

NOTE: Taiwan has a lottery prize system with its receipts. It is brilliant!

The policy was made to prevent sellers fromduce tax evasion, a problem especially small vendors.

LOGIC: It does not 100% "prevent" tax evasion, but it certainly _reduces_ tax evasion.

Like most countries, we get a receipt after purchasing products.

However, in Taiwan, the receipt will contain an eight-digit number, which is not only used to track the receipt but also to check for a prizeworks like lottery numbers.

I think this is clearer. Also, I went to Taiwan recently and saved all my receipts xDD

The government announces the winning numbers bi-every two monthlys.

"bi-monthly" can also mean twice a month.

The lowest prize is 200 NTD (around 7 USD), and the highest prize is 10 million NTD (around 308,704 USD)—pretty high, isn't it?

The policy was made to prevent sellers from tax evasion, especially small vendors.

Because people care about their prize, they help the government supervisemonitor whether the shop issues a receipt.

When I was a child, my mom got verreally mad if I lost the receipt because it could be worth a significant amount of money, so I guess this policy works well.

Like in most countries, we get a receipt after purchasing products.

need to put the "in" because it happens IN the country
it's not the country doing the action

However, in Taiwan, the receipt will contains a number, which is not only used to track the receipt, but also to check for a prize.

talking about present situation, present tense

The government announces the winning numbers bi-every two months/twice a monthly.

"Bimonthly" is a word that is a little bit confusing even for natives because it means both twice a month and every 2 months. better for clarity to avoid

The lowsmallest prize is 200 NTD (around 7 USD), and the highestgrand prize is 10 million NTD (around 308,704 USD)—pretty high, isn't it?

more idiomatic

The policy was made to prevent sellers from evading taxes/prevent tax evasion, especially small vendors.

prevent + noun + (from + verb)

Because people care about their prizes, they help the government supervise whether the shops issues a receipts.

changed to "shops" so it's generic and not talking about one specific shop

When I was a child, my mom got very mad if I lost theany receipts because it could be a significant amount of money, so I guess this policy works well.

When I was a child, my mom gowould get very mad if I lost the receipt because it could be a significant amount of money, so I guess this policy works well.

Since you use "if" the sentence would be in the conditional and "would get" should be used; however, it is not necessarily incorrect the way it was stated.