Replying to achow101
Followed this link: http://nvlpubs.nist.gov/nistpubs/FIPS/NIST.FIPS.180-4.pdf
and started reading about Secure Hash Standard.  From the explanation, item 3.

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I was under the impression that the hash function, specifically SHA256 for my interest, can be used on any length input to create a “digest” or hashed function.  By that I am thinking of the example of submitting a document to the hash function and getting a “digest” (right word?) that can be used to verity that the document has not been changed.   But that explanation specifically states less than 264 bits.
Please set me straight.

When I did my taxes this year the question posed by Turbo Tax was: Have you traded in any Cryptocurrencies.  I clicked yes but did not get any further questions.  That puzzles me.  I am a latecomer starting in 2017. Still, as of 2020 taxes that is three years of history.

Not being an accountant or a tax expert, meaning barely knowledgeable much less an expert, I worry there are things I will neglect to include or calculate wrongly.
Crypto is considered property and I presume the same as stocks/bonds.  That means that each coin, or portion, must be tracked as to purchase and sell costs and date for each.  Purchase is easy, but a sell may cross purchase boundaries.  If so, I presume that for taxes a single sell might have to be treated as N sells, one for each group of purchases at different prices.

Commissions are always reduce my ownership.  Should they be expressed as negative numbers or as positive number but knowing to always subtract.  The reason for asking that is: How should I handle the case when I transfer coins to another exchange.  I did not sell and did not have a profit or loss.  But I need to show in the receiving account that the coins were not zero cost.  For example, I cannot get my bank and Kraken synched up to buy some DOGE so I buy some Litecoin in Coinbase then send some that to Kraken to sell and buy DOGE.

What is the best tool to use for tracking crypto transactions?
I found some spread sheets but none of them mentioned the use of multiple exchanges.
When searching for MS Access templates Google ignores the part about Access.  The plus prefix is ignored.  Seems to me that a database is better for this than a spread sheet.
Your thoughts please.