Praise be to Allaah.
It is not clear from your
question whether you are collecting old currencies or modern currencies that
people still use.
Currency must be one of two
things:
1 – Either the currencies
that you collect are old, and are no longer used. These are of two types:
(i)
Currency of gold or silver, on
which zakaah must be paid if it reaches the nisaab by itself or you have
other gold or silver which when added to this reaches the nisaab, so you
should pay zakaah on it every year. The nisaab for gold is 85 grams and the
nisaab for silver is 595 grams.
(ii)
Currency that is not of gold or
silver, but it is no longer in use. No zakaah is due on this because it is
no longer of any value.
2 – Or the currencies that
you collect are currencies that are still in use. Zakaah is due on these
whether they are of gold or silver, or they are bank notes or coins, if it
reaches the nisaab. The nisaab for gold and silver has been explained
previously; as for the nisaab of cash, it is when the cash reaches the value
of the nisaab of gold or silver, whichever is less.
Shaykh Ibn ‘Uthaymeen (may
Allaah have mercy on him) was asked: I have a relative who used to have a
hobby of collecting foreign currency but now he has stopped. Should he pay
zakaah on it or not? If some time has passed and this currency is no longer
in use, what is the ruling?
He replied:
If he did that as a kind of
trade, i.e., to earn money from it, and he bought this currency for 10 then
sold it for 20, then they are trade goods. Their value should be worked out
at the end of the year and he should pay one-quarter of one-tenth. But if it
was just a hobby and he kept them, then if they still had any monetary
value, then he should pay zakaah on their monetary value, but if they were
no longer used, then he does not have to pay anything on them. End quote.
Based on this, if the
currencies that you have are of gold or silver, or they are still in use,
then zakaah must be paid on them, and you have to work out their value for
every year that has passed and pay zakaah, at a rate of one-quarter of
one-tenth.
And Allaah knows best.