I have an issue I need help on with the burn function of my contract. For example, if my token has a total supply of 5000 and It starts burning each transaction by 10% until it hits 3500 supply then increases burn on transactions to 20% until the supply is 2000 then finally increasing the burn per transaction to 30% until 500 supply is reached where at that point I can stop the burn function. How would I implement that? Any help would be greatly appreciated!

Write logic in the transfer and transferFrom, in your case, maybe just like if (totalSupply 3500) { doBurnByTenPer() } else if (totalSupply 2000) { doBurnByTwentyPer() } else if (totalSupply 500) { doBurnByThirtyPer() } Ohhhh, just write in this internal function: function _transfer(address sender, address recipient, uint256 amount) internal

Hi @RC5858, Welcome to the community. :wave: I recommend looking at the following too: [image] Add commission to ERC20 transfer Contracts Yeah, of course, you can. And at the same time, it will bring some issues, warning If you create a fee on transfer or deflationary token (burn a percentage on transfer) this can cause issues with use in other contracts such as: https://medium.com/balancer-protocol/incident-with-non-standard-erc20-deflationary-tokens-95a0f6d46dea Any solution should be appropriately tested (including testing with services that you want to use) and appropriately audited. I also suggest looking at Points …

Thankyou both of you for the input. I wasn’t aware of the risks to making a deflationary token. How are devs getting around this currently? Obviously doing my research on that part now that you brought it to my attention.

Hi @RC5858, I don’t know how developers of deflationary tokens are dealing with these issues. Feel free to share what research you find. Though I would be very cautious with deflationary tokens and have appropriate system testing on all services that you plan to use and appropriate auditing.

Hello, do this issue is still occurring? So the way to go is to make a token without those transfer fees? Thanks a lot.

ERC20 Burn on transfer (deflationary token)

Support Contracts

abcoathup November 9, 2020, 6:59am 3

Hi @RC5858,

Welcome to the community.

I recommend looking at the following too:

Topic		Replies	Views
How to burn tokens on every transfer? Support	7	2505	December 30, 2020
Will burning a percentage of the amount transferred for an ERC20 token cause issues? Contracts erc20	3	1900	September 15, 2020
How do I burn the token with each transfer? Deflationary Token Support	3	739	May 11, 2021
Create deflationary ERC20 token Contracts	1	7562	August 27, 2020
Turn on deflationary functionality after a specific transaction Support	7	3797	October 14, 2020

ERC20 Burn on transfer (deflationary token)

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