Furusato Nozei: Worth It?
Posted: Tue Nov 03, 2020 4:48 am
I've been looking a bit into Furusato Nozei as I've never really taken it seriously before.
There are already a couple of great threads here about how the system works.
But I wondering, aside from the philanthropic aspect of supporting a specific municipality, is it a good system on a purely personal finance level?
In general with taxes, in my understanding it's better to delay payment as long as possible, and use the money to generate returns in the mean time. But with Furusato Nozei, it's effectively paying the tax in advance.
For example, if you make a 100,000 yen donation in January, you won't start to get the tax deduction until July the following year (except for the income tax part, if you do the tax return method), 18 months later. That's 18 months that that 100,000 yen could have been invested, earning interest. If we assume it earns 5%, then that's about 7,500 yen loss. So for it to be worth it, you'd need to be getting benefits that are both more worth more than 9,500 yen (including the 2000 yen fee) and something you would have bought anyway. If the return was 10%, you'd need a benefit of over 17,000 yen for it to be worth it. If you were to donate in December, then you only have 6-ish months of lost interest to think about.
The benefits I found for donations of around that amount were worth over 20,000 yen if bought directly, so it does seem to be worth it at the moment. But there's not much in it and it's probably worth doing the calculation each time to make sure you're not being lured into a poor financial decision under the guise of doing some good / lowering taxes / getting free stuff. It looks like it's always beneficial to keep the donations toward the end of the year, to minimise the pre-payment period.
There is also the risk that your donation limit is not known before the fact, since your taxable income for the year is only confirmed after the tax year has finished. You can only donate up to 20% of your due residence tax amount, so if you end up over-donating, the amount you over-donated by becomes a pure loss. It seems like it's prudent to be conservative in your estimate for how much your maximum donation limit is; any overspend will be an order of magnitude higher than the savings you would have made, so making this mistake is likely to completely negate the benefit of using the system - or make it an expense.
There are already a couple of great threads here about how the system works.
But I wondering, aside from the philanthropic aspect of supporting a specific municipality, is it a good system on a purely personal finance level?
In general with taxes, in my understanding it's better to delay payment as long as possible, and use the money to generate returns in the mean time. But with Furusato Nozei, it's effectively paying the tax in advance.
For example, if you make a 100,000 yen donation in January, you won't start to get the tax deduction until July the following year (except for the income tax part, if you do the tax return method), 18 months later. That's 18 months that that 100,000 yen could have been invested, earning interest. If we assume it earns 5%, then that's about 7,500 yen loss. So for it to be worth it, you'd need to be getting benefits that are both more worth more than 9,500 yen (including the 2000 yen fee) and something you would have bought anyway. If the return was 10%, you'd need a benefit of over 17,000 yen for it to be worth it. If you were to donate in December, then you only have 6-ish months of lost interest to think about.
The benefits I found for donations of around that amount were worth over 20,000 yen if bought directly, so it does seem to be worth it at the moment. But there's not much in it and it's probably worth doing the calculation each time to make sure you're not being lured into a poor financial decision under the guise of doing some good / lowering taxes / getting free stuff. It looks like it's always beneficial to keep the donations toward the end of the year, to minimise the pre-payment period.
There is also the risk that your donation limit is not known before the fact, since your taxable income for the year is only confirmed after the tax year has finished. You can only donate up to 20% of your due residence tax amount, so if you end up over-donating, the amount you over-donated by becomes a pure loss. It seems like it's prudent to be conservative in your estimate for how much your maximum donation limit is; any overspend will be an order of magnitude higher than the savings you would have made, so making this mistake is likely to completely negate the benefit of using the system - or make it an expense.