When is sponsorship tax deductible?

If sponsorship is genuinely advertising your business, it’s often deductible. If it’s really a donation, private benefit, entertainment or a capital asset purchase, the deduction may be limited or denied.                            

A quick checklist before you commit

Can you answer ''yes'' to most of these?

• There’s a clear promotional/advertising benefit (logo, signage, social posts, naming rights, etc.).
• It’s documented in writing (even a short email trail is better than nothing).
• Any private benefit to you or your family is minor, or you can fairly split the cost between business and private.
• You’re not effectively buying a capital asset you will own.
• You are GST-registered and you’ve checked whether GST applies.

Examples of when sponsorship is deductible

Sponsorship is usually deductible when, at the time you agree to it, your genuine purpose is to promote your business and it is reasonable to assume that your business will actually benefit from that particular promotional activity. Inland Revenue generally treats it like advertising/marketing – so you don’t need to prove that it directly increased sales, but you do need a sensible commercial link.

For example, a mechanic sponsors a local tennis club and their business name is displayed on uniforms or signage. Because the payment is linked to promotion, it’s typically deductible. The same principle can apply if you provide stock or services in return for clear branding (signage, mentions, naming rights, etc.).

When claims can go wrong

• Private benefit: If you or your family personally benefit from the sponsorship, you may need to split the cost. Only the business-promotion portion is deductible.
• Capital assets: If you end up owning an asset (vehicle, boat, equipment), the cost is usually capital (not immediately deductible). Depreciation may apply.
• Entertainment: Food, drink and hospitality can trigger the entertainment rules (often limiting claims to 50%).
• Donation versus sponsorship: If there’s little or no agreed promotion, it’s usually a donation (not usually deductible, and typically GST isn’t applied).
• Timing: Tax deductions for large upfront, multi-year sponsorships may need to be spread over the period covered.

Record-keeping tips (what to keep on file)

• Confirm what promotion you will receive (signage, logo placement, posts, announcements, naming rights).
• Keep the paperwork: Agreement or email trail, invoices and proof of promotion (photos, screenshots).
• Note why it makes commercial sense (how it reaches your customers/market).
• Flag any private benefit, capital asset purchase or entertainment component (you may need to split the cost or limit the claim).
• Don’t treat a donation like sponsorship. Without real promotion, deductions are often denied. Company donations to Inland Revenue-approved charities are permitted but limited to your company’s level of net taxable income.
• GST check: If you’re GST‑registered, confirm whether GST applies and make sure you have a valid tax invoice.

If you have any questions about whether you can claim sponsorship as a tax reduction, please contact your local Baker Tilly Staples Rodway business advisor.