[FIFO] How to transfer lots between accounts and how to query lot information with 8 decimal digits?

67 views
Skip to first unread message

Tobi

unread,
Dec 22, 2020, 4:27:08 PM12/22/20
to Beancount
Is there a way to automatically transfer lots from one account to another using FIFO and keeping the prices paid?

E.g.:

I bought `0.13833333 BTC` for `2500 EUR` and `0.125 BTC` for `2500 EUR` on Coinbase. I transferred `0.2 BTC` to Binance. I sold all `0.2 BTC` for `3500 EUR` on Binance.

*(Which will actually become a swap to another coin. But for taxes I need to account an assumed BTC-EUR sell and an assumed X-Token buy. But since I got that lot issue the final step is omitted.)*

option "booking_method" "FIFO"
option "operating_currency" "EUR"
option "inferred_tolerance_default" "EUR:0.001"
option "inferred_tolerance_default" "BTC:0.00000001"
2020-12-01 open Equity:Opening-Account
2020-12-01 open Assets:Cash:Coinbase-Pro
2020-12-01 open Assets:Cash:Binance
2020-12-01 open Assets:Crypto:BTC:Coinbase-Pro
2020-12-01 open Assets:Crypto:BTC:Binance
2020-12-01 open Expenses:Commission:Coinbase-Pro:EUR
2020-12-01 open Income:Day-trading:EUR
2020-12-17 * "Coinbase" "Opening"
Assets:Cash:Coinbase-Pro 5000 EUR
Equity:Opening-Account -5000 EUR

2020-12-17 * "Coinbase" "Trade EUR => BTC"
Assets:Cash:Coinbase-Pro -2500 EUR
Assets:Crypto:BTC:Coinbase-Pro 0.13833333 BTC {18,000 EUR} @ 18,000 EUR
Expenses:Commission:Coinbase-Pro:EUR 10 EUR
2020-12-18 * "Coinbase" "Trade EUR => BTC"
Assets:Cash:Coinbase-Pro -2500 EUR
Assets:Crypto:BTC:Coinbase-Pro 0.125 BTC {20,000 EUR} @ 20,000 EUR
Expenses:Commission:Coinbase-Pro:EUR 0 EUR

2020-12-19 * "Binance" "Transfer BTC Coinbase-Pro => Binance"
Assets:Crypto:BTC:Binance 0.2 BTC
Assets:Crypto:BTC:Coinbase-Pro -0.2 BTC

2020-12-20 * "Binance" "Trade BTC => USDT"
Assets:Crypto:BTC:Binance -0.2 BTC {} @ 17,500 EUR
Assets:Cash:Binance 3,500 EUR
Income:Day-trading:EUR

The error I'm getting is:

>$ bean-check Krypto.bean
>
>Krypto.bean:38: No position matches "Posting(account='Assets:Crypto:BTC:Binance', units=-0.2 BTC, cost=CostSpec(number_per=<class 'beancount.core.number.MISSING'>, number_total=None, currency='EUR', date=None, label=None, merge=False), price=17500 EUR, flag=None, meta={'filename': 'Krypto.bean', 'lineno': 39})" against balance (0.2 BTC)
>
> 2020-12-20 * "Binance" "Trade BTC => USDT"
> Assets:Crypto:BTC:Binance -0.2 BTC {} @ 17500 EUR
> Assets:Cash:Binance 3500 EUR
> Income:Day-trading:EUR

That's probably because the lot information isn't passed in the 2020-12-19 transfer post.

`--------------------`

According to the manual keeping the lot information could be achieved writing the transfer post like this:

2020-12-16 * "Binance" "Transfer BTC Coinbase-Pro => Binance"
Assets:Crypto:BTC:Binance 0.13833333 BTC {18,000 EUR} ; creates a lot manually. Not FIFO safe
Assets:Crypto:BTC:Coinbase-Pro -0.13833333 BTC {} ; selects the lot automatically. Therefore, Assets:Crypto:BTC:Coinbase-Pro is FIFO safe

But using this means I'm creating a lot in the second account `Assets:Crypto:BTC:Binance` manually. So, I'd need to look up which is/are the lot(s) that get transferred. Is there a syntax to solve automatically? Doing this manually would be cumbersome and error-prone. Dealing with cryptos many transfers between exchanges and privately owned wallets are a common thing. To keep track of them is crucial for any tax declaration.

I think this is related to:

`--------------------`

In order to do the FIFO manually I need to look up/query my lots, but I'm unable to do this. `bean-report FILE holdings` seemed appropriate, but the lot date is missing and the units are trimmed/rounded to two digits:

>$ bean-report Krypto.bean holdings
>
>Account Units Currency Cost Currency Average Cost Price Book Value Market Value
>------------------------------ ----- -------- ------------- ------------ ----- ---------- ------------
>Assets:Crypto:BTC:Binance 0.20 BTC BTC 0.20 0.20
Assets:Crypto:BTC:Coinbase-Pro 0.14 BTC EUR 18,000.00 2,490.00
Assets:Crypto:BTC:Coinbase-Pro 0.12 BTC EUR 20,000.00 2,500.00
Assets:Crypto:BTC:Coinbase-Pro -0.20 BTC BTC -0.20 -0.20
>------------------------------ ----- -------- ------------- ------------ ----- ---------- ------------
I also tried `bean-query`. I could add the date, but the unit size is rounded as well:

>$ bean-query Krypto.bean 'SELECT account, date, position WHERE currency="BTC" ORDER BY account'
>
> account date position
>------------------------------ ---------- --------------------
>Assets:Crypto:BTC:Binance 2020-12-19 0.2 BTC
>Assets:Crypto:BTC:Coinbase-Pro 2020-12-17 0.1 BTC {18000 EUR}
>Assets:Crypto:BTC:Coinbase-Pro 2020-12-18 0.1 BTC {20000 EUR}
>Assets:Crypto:BTC:Coinbase-Pro 2020-12-19 -0.2 BTC

I'd like to have an output with the colums:

account, lot_date, lot_units (using 8 decimal digits), lot_cost (using 8 decimal digits)
Lots which has been transferred/sold should be omitted, of course. (How) Is this possible?

Regards.
Message has been deleted

Peter

unread,
Dec 22, 2020, 7:09:08 PM12/22/20
to Beancount
After reading
more carefully I found a partial solution: Providing the cost currency in the lot reducing transaction, FIFO booking works:

option "booking_method" "FIFO"
option "operating_currency" "EUR"
option "inferred_tolerance_default" "*:0.001"
option "inferred_tolerance_default" "EUR:0.001"
option "inferred_tolerance_default" "BTC:0.00000001"


2020-12-01 open Equity:Opening-Account
2020-12-01 open Assets:Cash:Coinbase-Pro
2020-12-01 open Assets:Cash:Binance
2020-12-01 open Assets:Crypto:BTC:Coinbase-Pro
2020-12-01 open Assets:Crypto:BTC:Binance
2020-12-01 open Expenses:Commission:Coinbase-Pro:EUR
2020-12-01 open Income:Day-trading:EUR


2020-12-17 * "Coinbase" "Opening"
  Assets:Cash:Coinbase-Pro                    5000 EUR
  Equity:Opening-Account                     -5000 EUR

2020-12-17 * "Coinbase" "Trade EUR => BTC"
  Assets:Cash:Coinbase-Pro                   -2500 EUR
  Assets:Crypto:BTC:Coinbase-Pro        0.13833333 BTC {18,000 EUR, 2020-12-17} @ 18,000 EUR
  Expenses:Commission:Coinbase-Pro:EUR          10 EUR

    
2020-12-18 * "Coinbase" "Trade EUR => BTC"
  Assets:Cash:Coinbase-Pro                   -2500 EUR
  Assets:Crypto:BTC:Coinbase-Pro             0.125 BTC {20,000 EUR, 2020-12-18} @ 20,000 EUR
  Expenses:Commission:Coinbase-Pro:EUR           0 EUR


2020-12-19 * "Binance" "Transfer BTC Coinbase-Pro => Binance"
  Assets:Crypto:BTC:Binance                    0.2 BTC {}
                                                  ; THAT ↓ MAKES THE DIFFERENCE
  Assets:Crypto:BTC:Coinbase-Pro              -0.2 BTC {EUR}
                                                  ; THAT ↑ MAKES THE DIFFERENCE

2020-12-20 * "Binance" "Trade BTC => USDT"
  Assets:Crypto:BTC:Binance                   -0.2 BTC {} @ 19500 EUR
  Assets:Cash:Binance                         3900 EUR
  Income:Day-trading:EUR

But, unfortunately, there's a drawback: beancount creats only one lot in Assets:Crypto:BTC:Binance—instead of copying the the old ones.
Here's what I mean:

$ bean-doctor context Krypto.bean 33
Hash:6987d379aededd533a9f0f9a50712dcd
Location: Krypto.bean:33

------------ Balances before transaction

  Assets:Crypto:BTC:Binance                                                        

  Assets:Crypto:BTC:Coinbase-Pro             0.13833333 BTC {18000 EUR, 2020-12-17}
  Assets:Crypto:BTC:Coinbase-Pro                  0.125 BTC {20000 EUR, 2020-12-18}


------------ Transaction

2020-12-19 * "Binance" "Transfer BTC Coinbase-Pro => Binance"
  Assets:Crypto:BTC:Binance        0.2 BTC {18617 EUR, 2020-12-19}  ;  3723.33334000 EUR
  Assets:Crypto:BTC:Coinbase-Pro  -0.1 BTC {18000 EUR, 2020-12-17}  ; -2489.99994000 EUR
  Assets:Crypto:BTC:Coinbase-Pro  -0.1 BTC {20000 EUR, 2020-12-18}  ; -1233.33340000 EUR


Tolerances: BTC=1E-8, EUR=0.001

------------ Balances after transaction

* Assets:Crypto:BTC:Binance                 0.2 BTC {18616.6667000 EUR, 2020-12-19}

* Assets:Crypto:BTC:Coinbase-Pro             0.06333333 BTC {20000 EUR, 2020-12-18}

The new lot in Assets:Crypto:BTC:Binance is: 0.2 BTC {18616.6667000 EUR, 2020-12-19}.
What I'd like it to be:

Assets:Crypto:BTC:Binance             0.13833333 BTC {18000 EUR, 2020-12-17}
Assets:Crypto:BTC:Binance                  0.125 BTC {20000 EUR, 2020-12-18}

So, basically a complete copy of the previous lots.

Why is that important? The average cost that beancount calculates is sufficient to calculate profit and loss. BUT: The original lot dates are important because I can sell coins that I held for longer than a year without paying taxes. So, is it possible to prevent the creation of a new summarized lot?


Regards
Reply all
Reply to author
Forward
0 new messages