Yes you can easily transfer loan account to capital account it is not such a big matter.
Because auditor always mentions that the account in balance sheet and profit and loss are regrouped and rearranged for better presentation so if last year there was a mistake in presentation you can easily fix it there is nothing to worry and any which ways it's partners loan account you can easily transfer it to capital account.
You are not running a company you are running a partnership firm so no need to have any meeting or anything for such thing. Why would there be a modification in partnership deed for just one accounting entry.
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