How to Draft a Solid Lease Agreement: A CPA’s Guide to Rental Withholding Tax, Second-Generation NHI, and Business Tax
During commercial lease or office rental negotiations, the most common source of disputes between landlords and tenants is rarely the rent amount itself—it is usually who bears the burden of “taxes and withholding fees.” Especially when the tenant is a corporate entity, it involves income tax withholding, second-generation National Health Insurance (NHI) supplementary premiums, and even the 5% Business Tax (VAT) inclusion or addition. If these are not clearly spelled out in the initial lease agreement, it often leads to misunderstandings and friction during subsequent tax reporting and payments.
As a practicing Certified Public Accountant (CPA), this article will deeply analyze the tax-bearing mechanisms for individual landlords and the common “tax-inclusive vs. tax-exclusive” calculation logic in corporate leases, helping you draft a legal, mutually beneficial, and worry-free lease agreement!
1. If the Landlord is an “Individual”: 10% Income Tax Withholding and Second-Generation NHI
When a business (the tenant) rents a property from an “individual landlord,” according to tax regulations, the company bears a “withholding obligation” when paying rent:
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1. Rental Income Tax Withholding (10%):
By regulation, rental payments are subject to a 10% withholding tax rate declaration. However, there is an important practical threshold: If the calculated withholding tax for a single payment does not exceed NT$2,000 (meaning monthly rent is under NT$19,999), tax does not need to be withheld and paid to the national treasury each time. Instead, a “tax exemption withholding statement” only needs to be issued and filed with the National Taxation Bureau before the end of January each year.
(Conversion formula: Monthly rent × 10% > NT$2,000, meaning a monthly rent of NT$20,000 or more requires withholding 10% tax and paying it to the national treasury by the 10th of the following month.) - 2. Second-Generation NHI Supplementary Premium (2.11%): When a single rental payment reaches a certain threshold (currently regulated as a single payment of NT$20,000 or more), the withholding unit (the company) is obligated to withhold a 2.11% second-generation NHI supplementary premium and pay it on behalf of the landlord.
2. The Landlord’s Pain Point: “How Much Will My Personal Income Tax Increase?”
When renting to a company, landlords most frequently ask: “How much will this increase my taxes?”
In tax calculations, if an individual landlord cannot provide relevant cost receipts for repairs, depreciation, or mortgage interest, the National Taxation Bureau directly applies a “standard expense ratio of 43%”, meaning the net rental income rate is 57%.
💡 Landlord Rental Income Calculation Example:
If the total annual rental income is NT$600,000 (NT$50,000/month × 12 months):
Rental Income = NT$600,000 × 57% = NT$342,000
This net income of NT$342,000 will be incorporated into the landlord’s total personal comprehensive income for that year, and the actual increase in income tax is calculated based on their personal tax bracket (ranging from 5% to 40%). Therefore, if both parties reasonably factor tax costs into account during signing (such as moderately adjusting the rent), a win-win outcome can often be achieved.
3. Corporate Lease Business Tax: The Major Difference Between 5% “Tax-Inclusive” and “Tax-Exclusive”
If the landlord is a “corporate organization (legal entity)”, upon receiving the rent, the landlord must legally issue a taxable uniform invoice to the tenant. At this point, whether the rent in the agreement is “tax-inclusive” or “tax-exclusive” makes a huge difference in the amount! The following example is based on a monthly rent of NT$50,000:
| Comparison Item | A. Rent Agreed as “Tax-Inclusive” at NT$50,000 | B. Rent Agreed as “Tax-Exclusive” at NT$50,000 (Plus 5% VAT) |
|---|---|---|
| Actual Payment Amount | Total paid to landlord: NT$50,000 | Paid to landlord NT$50,000 + Business Tax NT$2,500 = Total paid: NT$52,500 |
| Input Tax (Deductible Business Tax) | 50,000 – (50,000 / 1.05) = NT$2,381 | 50,000 × 5% = NT$2,500 |
| Corporate Real Rental Cost | 50,000 – 2,381 = NT$47,619 | 52,500 – 2,500 = NT$50,000 |
| Standard Contract Text Suggestion | “The rent is NT$50,000 per period (month), inclusive of 5% Business Tax.” | “The rent is NT$50,000 per period (month), plus 5% Business Tax, for an actual total payment of NT$52,500.” |
4. Should the Lease Be Notarized? Benefits and Purpose of Notarization
Many tenants and landlords hesitate over whether a lease needs to be notarized by a court or a private notary public. In fact, a notarized lease provides tremendous protection for both parties:
- Benefits for Tenants: They can legally declare rental expenses and deduct income tax, eliminating the disadvantageous negotiation position caused by cooperating with a landlord’s tax evasion, while building a sound corporate accounting system.
- Benefits for Landlords: If a tenant maliciously defaults on rent or refuses to move out upon expiration, a notarized deed generally carries “enforceable power,” allowing direct application for court execution and bypassing lengthy litigation processes. The intangible protection it brings far outweighs the filing fees.
Conclusion: Clarifying Rules Makes the Soundest Partnership
A good lease agreement goes beyond square footage and rent amounts—it brings tax burdens (withholding, second-generation NHI, business tax) and performance guarantees (notarization, deposit terms) out into the open. Laying out these details clearly at the very beginning of signing not only ensures that corporate accounting remains legal and compliant, but also preserves a long-term harmonious relationship of trust between landlord and tenant!