Whether it is the day to day upkeep, and operating expenses, repair projects, or the rent or mortgage payment, you allocate a big portion of your income to your home.

无论是日常保养和营运费用，维修项目，或支付房租或抵押贷款，你分配一个大的一部分收入，您的家庭。

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There are restrictions on the deductibility of work related expenses uniform cost and upkeep.

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So while you may not pay upfront now, the expenses for the software maintenance and upkeep may accumulate and charge you in the future.

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