Why 'amount in words' matters
Every properly-drafted money receipt writes the amount twice — once in figures (৳25,000) and once in words ('Twenty-five thousand taka only'). This dual representation defeats one of the oldest forms of receipt tampering: adding a zero to the number after the fact. Where the figures and the words disagree, most legal systems treat the words as authoritative.
The word 'only' at the end of the written amount ('Fifty thousand only') is a small but important convention. It signals that nothing further is being received and blocks any later addition of 'and forty-two paise' or similar padding. Skip it and you weaken the receipt in exactly the situations where its strength matters most.
For very large amounts, some formal receipts also spell out the currency in the words section: 'Taka fifty thousand only' or 'US Dollars ten thousand only'. This removes any ambiguity about which currency was actually handed over, particularly for cross-border transactions.