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Tax Guide To Uniswap Crypto Exchange

Shehan Chandrasekera, CPA

Mar 09, 2020 • 3 MIN READ

Last Updated: August 25, 2020

This post was originally published on Forbes by Shehan Chandrasekera on March 2nd, 2020

Part 1 of this 2 part series, we discussed some of the core functionalities of Uniswap at a high level and how this crypto exchange is different from traditional exchanges. This understanding was essential before diving into the tax implications of Uniswap. Note that there is no one set of tax law that directly governs Uniswaps. In the absence of more specific laws, we can infer applicable tax laws based on the general guidance issued by the IRS.

Adding Liquidity & Receiving UNI-V1 Token

There could be two positions.

Position 1: Adding liquidity is not a taxable event. You are not disposing of your property; you are only depositing a pair of tokens. UNI-V1 you receive is a mere representation of your original deposit ratio; it is not a new property. This position is taxpayer friendly and makes the most sense in practical terms.

Position 2 : Adding liquidity is a taxable event. It could be argued that you are selling your original deposit and receiving a new property, UNI-V1. Crypto to crypto trades are taxable (A15). This position does not make any sense in practical terms. However, since you are highly unlikely to get back the initial ratio deposited in its original form, one could argue that you disposed of it at the time you added liquidity.

Earning Fees

There is a 0.3% transfer fee that Uniswap charges to the swapper that is then split among all the liquidity providers in that specific pool based on their liquidity offering size. If we apply the staking rules, these fees earned can be either taxed as interest income or rental income as you earn them.

Trading (Or Swapping) On Uniswap

Without any ambiguity, crypto to crypto exchanges are taxable (A15).  Your gain or loss is the difference between the fair market value (FMV) of the property received and the cost basis of the property exchanged.

Changes In Liquidity Ratio

Every time your original deposit ratio changes, it means you either have gained access or lost access to one side of your pair. It could be argued that you are selling one side of the pair in exchange for the other side of the pair. (a crypto to crypto exchange). Therefore, every time the ratio changes, a taxable event occurs. However, this will be virtually impossible to track because the ratio changes very frequently. One practical alternative is to tax when you remove your deposit.

Removing Liquidity

If changes in the original deposit ratio is not taxed real time as mentioned above, an alternative approach is to tax when you take out your position from the pool. For example, you can compare the cost basis of ETH at the time you entered them into the liquidity pool vs the FMV when you retrieve them. The difference can be taxed as capital gains or losses.

In summary, it is quite challenging to apply existing general crypto tax guidance into an innovative platform like Uniswap. Until further guidance is issued by regulators, all we can do is being reasonable and conservative when taking tax positions.


CoinTracker helps you calculate your crypto taxes by seamlessly connecting to your exchanges and wallets. Questions or comments? Reach out to us @CoinTracker

Disclaimer: this post is informational only and is not intended as tax advice. For tax advice, please consult a tax professional.

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